ORCID Profile
0000-0002-3635-7912
Current Organisation
Arabian Gulf University College of Medicine and Medical Science
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Publisher: American Physical Society (APS)
Date: 10-06-2021
Publisher: Public Library of Science (PLoS)
Date: 07-04-2022
DOI: 10.1371/JOURNAL.PONE.0266501
Abstract: This study aimed to determine caregivers’ perspectives on difficulties encountered while seeking care for adolescents with sickle cell disease (SCD). It explored the social, emotional, and financial impact of caring for an adolescent with SCD on their caregivers. A mixed-method study in a major tertiary care hospital in Bahrain was conducted between June and August 2019. Cross-sectional questionnaires and thematic analyzed interviews were performed with 101 and 18 Bahraini caregivers of adolescents with SCD (aged 10–18 years), respectively. Lack of parking lots (52.5%) and traffic jams (27%) were identified as the most common challenges in seeking hospital care for adolescents with SCD. These difficulties, including prolonged waiting in the emergency room, discouraged more than half of the caregivers who preferred to seek care from smaller healthcare centers. Most caregivers reported receiving a high degree of support from their families, who emotionally encouraged them to facilitate patient care (73.3%). Therefore, their relationships with their friends, colleagues, and relatives were not significantly affected. Catastrophic health expenditure occurred in 14.8% of caregivers. Qualitative themes that emerged were A) the intricacy of caring for adolescents with SCD , B) dissatisfaction with hospital facilities , and C) insufficient healthcare services , wherein caregivers reported adolescents’ experiences with services during hospital visits. Subthemes for the intricacy of caring for adolescents with SCD were 1) the psychological tragedy , summarizing the initial caregivers’ feelings after the confirmed diagnosis, 2) caregiving hardships that described the caregivers’ emotional and health burden while accepting and adjusting to the disease, and 3) the cost of care on families , which highlights the financial burden of the disease on families. The caregivers of adolescents with SCD experienced several overwhelming challenges, including problems in accessing healthcare and receiving medical services, in addition to influences on the emotional, financial, and social aspects of their lives.
Publisher: American Physical Society (APS)
Date: 07-06-2021
Publisher: Springer Science and Business Media LLC
Date: 09-01-2013
Publisher: MDPI AG
Date: 30-05-2023
DOI: 10.3390/NU15112543
Abstract: Lifestyle factors such as dietary habits, perceived weight, sleep, and physical activity worsened during the COVID-19 pandemic. Through this study, we aimed to understand the impact of COVID-19 on these lifestyle factors in Bahrain. A cross-sectional study was conducted among 1005 adult Bahrainis. Data were collected online using a structured and validated questionnaire for the assessment of eating habits, physical activity, and lifestyle during the COVID-19 pandemic. Participants were snowballed through those who agreed to answer the online questionnaire. There was a higher consumption of fast food, and a higher dependence on takeaways during the COVID-19 pandemic. About 63.5% of the participants consumed meals per day, compared to 36.5% before the COVID-19. About 30% reported consumption of sugar sweetened beverages from two to three times a day. Weight loss was predominantly observed in persons exercising 1–3 times a week. The consumption of sugar-sweetened beverages was also high, with about 19% reporting drinking sweet beverages once every day, 10.6% from two to three times a day, and 40.4% from one to four times a week. A higher proportion of the participants reported poor sleep quality during the pandemic (31.2%) compared to before (12.2%), and 39.7% of the participants reported feeling lazy. Screen time use also doubled during the pandemic, with participants spending more than five hours per day on screens for entertainment, which went from 22.4% before to 51.9% during the pandemic. The lifestyle and dietary habits changed drastically for our study participants during the pandemic. The increased reliance on processed fast food instead of healthier options is a challenge to be tackled in any future pandemic situation. Future research needs to focus on strategies to promote healthier lifestyle modifications during situations such as the COVID-19 pandemic.
Publisher: Emerald
Date: 04-10-2022
DOI: 10.1108/AGJSR-03-2022-0007
Abstract: The paper intends to explore the lived experiences of medical students during the COVID-19 pandemic and its impact on their lifestyles and mental wellbeing. Fourteen medical students from the College of Medicine and Medical Sciences, Arabian Gulf University, Bahrain, were enrolled, and their narratives were obtained. Data were analyzed and conducted using Colaizzi’s phenomenological descriptive method of enquiry. The analysis identified two themes, along with nine subthemes, that were generated. The first theme focused on mental and social experiences, while the second focused on lifestyle changes. During the pandemic, students had time to reflect on themselves and started to think positively about their lives, although they felt fearful, uncertain, stressed and anxious due to preventive control measures that were mandated, including social distancing and lockdowns. Participants’ lifestyles changed generally negatively, as they adapted to the preventive measures, rendering them physically inactive and exposing them to unhealthy food and disturbed sleep. The findings provide an insight into the negative impact of the COVID-19 pandemic on the lifestyle and mental wellbeing of medical students. Educational institutes need to offer their students both short as well as long-term health, social and mental support to overcome the impact of the pandemic on their lives.
Publisher: Springer Science and Business Media LLC
Date: 06-2021
Abstract: A search for charged Higgs bosons decaying into W ± W ± or W ± Z bosons is performed, involving experimental signatures with two leptons of the same charge, or three or four leptons with a variety of charge combinations, missing transverse momentum and jets. A data s le of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider between 2015 and 2018 is used. The data correspond to a total integrated luminosity of 139 fb − 1 . The search is guided by a type-II seesaw model that extends the scalar sector of the Standard Model with a scalar triplet, leading to a phenomenology that includes doubly and singly charged Higgs bosons. Two scenarios are explored, corresponding to the pair production of doubly charged H ±± bosons, or the associated production of a doubly charged H ±± boson and a singly charged H ± boson. No significant deviations from the Standard Model predictions are observed. H ±± bosons are excluded at 95% confidence level up to 350 GeV and 230 GeV for the pair and associated production modes, respectively.
Publisher: Springer Science and Business Media LLC
Date: 10-09-2013
Abstract: Human resources are an important building block of the health system. During the last decade, enormous investment has gone into the information systems to manage human resources, but due to the lack of a clear vision, policy, and strategy, the results of these efforts have not been very visible. No reliable information portal captures the actual state of human resources in Pakistan’s health sector. The World Health Organization (WHO) has provided technical support for the assessment of the existing system and development of a comprehensive Human Resource Information System (HRIS) in Pakistan. The questions in the WHO-HRIS Assessment tool were distributed into five thematic groups. Purposively selected (n=65) representatives from the government, private sector, and development partners participated in this cross sectional study, based on their programmatic affiliations. Fifty-five percent of organizations and departments have an independent Human Resources (HR) section managed by an establishment branch and are fully equipped with functional computers. Forty-five organizations (70%) had HR rules, regulations and coordination mechanisms, yet these are not implemented. Data reporting is mainly in paper form, on prescribed forms (51%), registers (3%) or even plain papers (20%). Data analysis does not give inputs to the decision making process and dissemination of information is quite erratic. Most of the organizations had no feedback mechanism for cross checking the HR data, rendering it unreliable. Pakistan is lacking appropriate HRIS management. The current HRIS indeed has a multitude of problems. In the wake of 2011 reforms within the health sector, provinces are even in a greater need for planning their respective health department services and must work on the deficiencies and inefficiencies of their HRIS so that the gaps and HR needs are better aligned for reaching the 2015 UN Millennium Development Goals (MDGs) targets.
Publisher: Springer Science and Business Media LLC
Date: 06-2021
Abstract: A search for charged Higgs bosons decaying into a top quark and a bottom quark is presented. The data analysed correspond to 139 fb − 1 of proton-proton collisions at $$ \\sqrt{s} $$ s = 13 TeV, recorded with the ATLAS detector at the LHC. The production of a heavy charged Higgs boson in association with a top quark and a bottom quark, pp → tbH + → tbtb , is explored in the H + mass range from 200 to 2000 GeV using final states with jets and one electron or muon. Events are categorised according to the multiplicity of jets and b -tagged jets, and multivariate analysis techniques are used to discriminate between signal and background events. No significant excess above the background-only hypothesis is observed and exclusion limits are derived for the production cross-section times branching ratio of a charged Higgs boson as a function of its mass they range from 3.6 pb at 200 GeV to 0.036 pb at 2000 GeV at 95% confidence level. The results are interpreted in the hMSSM and $$ {M}_h^{125} $$ M h 125 scenarios.
Publisher: Pakistan Journal of Medical Sciences
Date: 07-05-2016
Publisher: BMJ
Date: 02-2023
DOI: 10.1136/BMJOPEN-2022-069902
Abstract: The objective of this study was to determine the prevalence and correlates of early initiation of breast feeding and prelacteal feeding in highly disadvantaged districts in Pakistan. This cross-sectional study design. This study was carried out in twelve districts of the Sindh province of Pakistan. A total of 4800 mothers with children under 2 years, selected through a multistage random s ling method. Bivariate association, survival analysis (Kaplan-Meier and Cox proportional hazard techniques), multivariate linear regression and the ordinary least square model were used. The results show that the prevalence of early initiation of breast feeding was 68% and prelacteal feeding was 32%. Adequate treatment, proper guidance at antenatal care visits, postpartum health check, normal birth with skilled birth attendants, institutional birth, skin-to-skin contact at birth and birth size were all associated with early breastfeeding initiation (p .001). The odds of early initiation of breast feeding after birth are higher if the respondents received proper guidance (OR 2.05 95% CI 1.02 to 4.11) or made skin-to-skin contact (OR 10.65 95% CI 6.82 to 16.65). Bivariate association between the prelacteal feeding and a set of correlates suggests that all variables under study were significantly associated with the outcome variable of interest at a 95% or higher significance level. The factors which significantly reduced the odds of prelacteal feeding were adequate treatment (OR 0.29 95% CI 0.23 to 0.37) and postpartum health check (OR 0.65 95% CI 0.53 to 0.80). Sudy concludes that the correlates like adequate treatment of mothers during labour, postpartum health check-up, normal birth with skilled birth attendants, institutional births and skin-to-skin contact between mother and the baby determine the early initiation of breast feeding and prelecteal feeding. Early initiation of breast feeding needs to be encouraged, and communities must be educated against the use of prelacteal feeding.
Publisher: Informa UK Limited
Date: 07-05-2019
DOI: 10.1080/03670244.2019.1613986
Abstract: Fast food and sugar-sweetened soft drink consumption, adiposity, and physical activity behavior were determined through a cross-sectional study with 251 medical students from the Gulf Cooperation Council countries. Approximately 38% of the students were overweight or obese, and 56.2% consumed fast food in the past 24 h. Main reasons for consuming fast foods were lack of time to cook healthy food (51%), pleasant taste (26%) and the influence of family and friends (15%). Overweight status or obesity was more prevalent among males (50%), those having greater knowledge about calories in fast-food meals (51.6%), who checked fast food calories before eating (47.7%) or overestimated the amount of sugar in a soft drink (17.82 ± 26.59 spoons). Overweight or obese participants also performed more moderate physical activity (1.73 ± 2.08 days per week) compared to those with normal weight or underweight (p = <0.05). Fast food consumption can be curtailed by improving the availability of and access to healthier foods and implementing behavior change and regulatory interventions.
Publisher: Elsevier BV
Date: 2015
DOI: 10.1016/J.MIDW.2014.08.006
Abstract: to explore barriers experienced by community midwives (CMWs) when delivering services, from their own and their managers׳ perspectives, at provincial and district level in the context of organisational factors, and to determine other factors linked with the poor performance of CMWs in the delivery of maternal, neonatal and child health (MNCH)-related services within their communities. qualitative study design using in-depth interviews (IDIs) and focus group discussions (FGDs). two districts in Khyber Pakhtunkhwa and Punjab provinces in Pakistan. 41 participants were interviewed in depth they included CMWs, lady health supervisors and managerial staff of the MNCH programme. participants were interviewed about administrative issues including financial and policy areas, training and deployment in the community, functioning in the community, and supervision and referral for emergency cases. CMWs reported financial constraints, training needs and difficulty with building relationships in the community. They required support in terms of logistics, essential supplies, and mechanisms for referral of complicated cases to higher-level health facilities. CMWs working in developing countries face many challenges starting from their training, deployment in the field and delivery of services in their respective communities. Facilitating their work and efforts through improved programming of the CMW's services can overcome these challenges. the MNCH programme, provincial government and other stakeholders need to take ownership of the CMW programme and implement it comprehensively. Long-term adequate resource allocation is needed to sustain the programme so that improvements in maternal and child health are visible.
Publisher: Elsevier BV
Date: 12-2020
Publisher: American Physical Society (APS)
Date: 12-07-2021
Publisher: Springer Science and Business Media LLC
Date: 23-08-2021
DOI: 10.1186/S12936-021-03878-W
Abstract: Malaria is endemic to Pakistan with high prevalence among pregnant women and linked with maternal anaemia, intrauterine growth retardation, preterm birth, and low birth weight. The use of long-lasting insecticidal nets (LLINs) is a proven and cost-effective intervention preventing malaria among pregnant women. The present study aimed to explore predictors of knowledge and use of LLINs among pregnant women in Pakistan. This was part of a quasi-experimental study of 200 pregnant women conducted in a rural district of Sindh province in Pakistan. Data were collected using Malaria Indicator Survey questionnaires developed by Roll Back Malaria Partnership to end Malaria Monitoring and Evaluation Reference Group. Pregnant women and mothers with newborns of six months of age were interviewed in their homes. The age of the women was from 18 to 45, two thirds of the respondents (72.5%) were uneducated and married (77%). Majority (92%) of the women had received antenatal care during pregnancy, and 29.5% women had received counseling on malaria during their antenatal care visits. Multiple linear regression showed that the type of latrine was the most significant (β = 0.285, p 0.001) determinant of knowledge about malaria among pregnant women followed by the death of a newborn (β = 0.271, p 0.001). The use of mobile phone was the most significant (β = 0.247, p 0.001) predictor of usage of LLINs among pregnant women followed by the death of a newborn (β = 0.232, p 0.05). Maternal education, type of latrine, use of mobile phone, malaria during previous pregnancy and newborn death were strong predictors of knowledge and use of LLINs in pregnant women in Pakistan. There is a need to scale-up programmes that aim to create awareness regarding malaria among pregnant women. Mobile phone technology can be used to implement awareness programmes focusing on malaria prevention among women.
Publisher: Springer Science and Business Media LLC
Date: 25-05-2021
DOI: 10.1186/S12961-021-00735-9
Abstract: Pakistan has made slow progress towards reducing the newborn mortality burden as a result, it has the highest burden of newborn mortality worldwide. This article presents an analysis of the current policies, plans, and strategies aimed at reducing the burden of newborn death in Pakistan for the purpose of identifying current policy gaps and contextual barriers towards proposing policy solutions for improved newborn health. We begin with a content analysis of federal-level policies that address newborn mortality within the context of health system decentralization over the last 20 years. This is then followed by a case study analysis of policy and programme responses in a predominantly rural province of Pakistan, again within the context of broader health system decentralization. Finally, we review successful policies in comparable countries to identify feasible and effective policy choices that hold promise for implementation in Pakistan, considering the policy constraints we have identified. The major health policies aimed at reduction of newborn mortality, following Pakistan’s endorsement of global newborn survival goals and targets, lacked time-bound targets. We found confusion around roles and responsibilities of institutions in the implementation process and accountability for the outcomes, which was exacerbated by an incomplete decentralization of healthcare policy-making and health service delivery, particularly for women around birth, and newborns. Such wide gaps in the areas of target-setting, implementation mechanism, and evaluation could be because the policy-making largely ignored international commitments and lessons of successful policy-making in comparable regional counties. Inclusion of clear goals and targets in newborn survival policies and plans, completion of the decentralization process of maternal and child healthcare service delivery, and policy-making and implementation by translating complex evidence and using regional but locally applicable case studies will be essential to any effective policy-making on newborn survival in Pakistan.
Publisher: Maad Rayan Publishing Company
Date: 09-04-2016
Publisher: SAGE Publications
Date: 31-10-2016
Abstract: Physical activity in later years of life is not only essential to healthy aging and independent functioning, but it also helps prevent chronic diseases. We aimed this cross-sectional study to assess the prevalence of physical activity and associated factors among rural elderly Thais. We conducted this study on a s le of 300 elderly in 2 rural districts of Phranakornsiayutthaya province in Thailand. The mean age of participants were 67.5±6 years and 42% of them did not perform physical activity. Prevalence of vigorous and moderate intensity physical activity was 43.7% and 48.7%, respectively. About 43.7% elderly used any active transport and spent 2.81 hours on sedentary activities, daily. Females and those with enough income were 3.64 and 0.59 times, respectively, less likely to be physically active ( P .05). Our study concluded that almost half of the rural Thai elderly were physically inactive. Also male and wealthy elderly were less likely to be engaged in physical activity. We recommend for improved efforts to involve rural Thai elderly in physical activity by offering them opportunities for locally relevant recreational and leisure time physical activities, with special focus on males and higher income elderly.
Publisher: IOP Publishing
Date: 07-2021
DOI: 10.1088/1748-0221/16/07/P07029
Abstract: The ATLAS experiment at the Large Hadron Collider (LHC) employs a trigger system consisting of a first-level hardware trigger (L1) and a software-based high-level trigger. The L1 muon trigger system selects muon candidates, assigns them to the correct LHC bunch crossing and classifies them into one of six transverse-momentum threshold classes. The L1 muon trigger system uses resistive-plate chambers (RPCs) to generate the muon-induced trigger signals in the central (barrel) region of the ATLAS detector. The ATLAS RPCs are arranged in six concentric layers and operate in a toroidal magnetic field with a bending power of 1.5 to 5.5 Tm. The RPC detector consists of about 3700 gas volumes with a total surface area of more than 4000 m 2 . This paper reports on the performance of the RPC detector and L1 muon barrel trigger using 60.8 fb -1 of proton-proton collision data recorded by the ATLAS experiment in 2018 at a centre-of-mass energy of 13 TeV. Detector and trigger performance are studied using Z boson decays into a muon pair. Measurements of the RPC detector response, efficiency, and time resolution are reported. Measurements of the L1 muon barrel trigger efficiencies and rates are presented, along with measurements of the properties of the selected s le of muon candidates. Measurements of the RPC currents, counting rates and mean avalanche charge are performed using zero-bias collisions. Finally, RPC detector response and efficiency are studied at different high voltage and front-end discriminator threshold settings in order to extrapolate detector response to the higher luminosity expected for the High Luminosity LHC.
Publisher: Elsevier BV
Date: 04-2017
DOI: 10.1016/J.MIDW.2017.02.005
Abstract: this study was aimed to understand in depth how the community midwives (CMWs) in Pakistan perceive are the important factors for their acceptability and community related barriers to their practice of maternal and child health care services. qualitative study design using in-depth interviews (IDIs) and focus group discussions (FGDs). two districts in Khyber Pakhtunkhwa and Punjab provinces in Pakistan. we used qualitative study design and conducted 34 in depth interviews (IDIs) and 9 focus group discussions (FGDs) with 100 participants which included CMWs, lady health supervisors (LHSs) and managers in maternal neonatal and child health (MNCH) program of two provinces of Pakistan. content analysis of the findings was performed manually and findings were arranged in relevant themes originating from the study. CMWs in our study experienced restrictions from their families, especially husbands and in-laws, to be independently available to attend to women during pregnancy and delivery. Communication between the communities and MNCH program was found to be weak therefore CMWs had to struggle to win the trust of and persuade pregnant women to use their services. Most CMWs attributed low utilization of their services to inherent taboos prevalent in the communities under which they relied more on unskilled traditional birth attendants (TBAs). Gender sensitivity and fears of insecurity in many conflict hit areas affected CMWs' mobility within their own communities which affected the access of rural women to skilled maternal and child care.
Publisher: Springer Science and Business Media LLC
Date: 30-10-2021
Abstract: A search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ -lepton is presented. The search is based on a dataset of pp collisions at $$ \\sqrt{s} $$ s = 13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb − 1 . Events are selected if they have one light lepton (electron or muon) and at least one hadronically decaying τ -lepton, or at least two light leptons. In addition, two or more jets, at least one of which must be identified as containing b -hadrons, are required. Six final states, defined by the multiplicity and flavour of lepton candidates, are considered in the analysis. Each of them is split into multiple event categories to simultaneously search for the signal and constrain several leading backgrounds. The signal-rich event categories require at least one hadronically decaying τ -lepton candidate and exploit the presence of energetic final-state objects, which is characteristic of signal events. No significant excess above the Standard Model expectation is observed in any of the considered event categories, and 95% CL upper limits are set on the production cross section as a function of the leptoquark mass, for different assumptions about the branching fractions into tτ and bν . Scalar leptoquarks decaying exclusively into tτ are excluded up to masses of 1 . 43 TeV while, for a branching fraction of 50% into tτ , the lower mass limit is 1 . 22 TeV.
Publisher: Springer Science and Business Media LLC
Date: 07-2021
Abstract: A search for supersymmetry in events with four or more charged leptons (electrons, muons and τ -leptons) is presented. The analysis uses a data s le corresponding to 139 fb − 1 of proton-proton collisions delivered by the Large Hadron Collider at $$ \\sqrt{s} $$ s = 13 TeV and recorded by the ATLAS detector. Four-lepton signal regions with up to two hadronically decaying τ -leptons are designed to target several supersymmetric models, while a general five-lepton signal region targets any new physics phenomena leading to a final state with five charged leptons. Data yields are consistent with Standard Model expectations and results are used to set upper limits on contributions from processes beyond the Standard Model. Exclusion limits are set at the 95% confidence level in simplified models of general gauge-mediated supersymmetry, excluding higgsino masses up to 540 GeV. In R -parity-violating simplified models with decays of the lightest supersymmetric particle to charged leptons, lower limits of 1 . 6 TeV, 1 . 2 TeV, and 2 . 5 TeV are placed on wino, slepton and gluino masses, respectively.
Publisher: Public Library of Science (PLoS)
Date: 07-05-2020
Publisher: Springer Science and Business Media LLC
Date: 07-2021
Abstract: Measurements of four-lepton differential and integrated fiducial cross-sections in events with two same-flavour, opposite-charge electron or muon pairs are presented. The data correspond to 139 fb − 1 of $$ \\sqrt{s} $$ s = 13 TeV proton-proton collisions, collected by the ATLAS detector during Run 2 of the Large Hadron Collider (2015–2018). The final state has contributions from a number of interesting Standard Model processes that dominate in different four-lepton invariant mass regions, including single Z boson production, Higgs boson production and on-shell ZZ production, with a complex mix of interference terms, and possible contributions from physics beyond the Standard Model. The differential cross-sections include the four-lepton invariant mass inclusively, in slices of other kinematic variables, and in different lepton flavour categories. Also measured are dilepton invariant masses, transverse momenta, and angular correlation variables, in four regions of four-lepton invariant mass, each dominated by different processes. The measurements are corrected for detector effects and are compared with state-of-the-art Standard Model calculations, which are found to be consistent with the data. The Z → 4 ℓ branching fraction is extracted, giving a value of (4 . 41 ± 0 . 30) × 10 − 6 . Constraints on effective field theory parameters and a model based on a spontaneously broken B − L gauge symmetry are also evaluated. Further reinterpretations can be performed with the provided information.
Publisher: Springer Science and Business Media LLC
Date: 06-2021
DOI: 10.1140/EPJC/S10052-021-09192-8
Abstract: The paper presents a measurement of the Standard Model Higgs Boson decaying to b -quark pairs in the vector boson fusion (VBF) production mode. A s le corresponding to 126 $$\\hbox {fb}^{-1}$$ fb - 1 of $$\\sqrt{s} = 13\\,\\text {TeV}$$ s = 13 TeV proton–proton collision data, collected with the ATLAS experiment at the Large Hadron Collider, is analyzed utilizing an adversarial neural network for event classification. The signal strength, defined as the ratio of the measured signal yield to that predicted by the Standard Model for VBF Higgs production, is measured to be $$0.95^{+0.38}_{-0.36}$$ 0 . 95 - 0.36 + 0.38 , corresponding to an observed (expected) significance of 2.6 (2.8) standard deviations from the background only hypothesis. The results are additionally combined with an analysis of Higgs bosons decaying to b -quarks, produced via VBF in association with a photon.
Publisher: E.U. European Publishing
Date: 21-01-2017
Publisher: Springer Science and Business Media LLC
Date: 05-2021
Abstract: The results of a search for new phenomena in final states with b -jets and missing transverse momentum using 139 fb − 1 of proton-proton data collected at a centre-of-mass energy $$ \\sqrt{s} $$ s = 13 TeV by the ATLAS detector at the LHC are reported. The analysis targets final states produced by the decay of a pair-produced supersymmetric bottom squark into a bottom quark and a stable neutralino. The analysis also seeks evidence for models of pair production of dark matter particles produced through the decay of a generic scalar or pseudoscalar mediator state in association with a pair of bottom quarks, and models of pair production of scalar third-generation down-type leptoquarks. No significant excess of events over the Standard Model background expectation is observed in any of the signal regions considered by the analysis. Bottom squark masses below 1270 GeV are excluded at 95% confidence level if the neutralino is massless. In the case of nearly mass-degenerate bottom squarks and neutralinos, the use of dedicated secondary-vertex identification techniques permits the exclusion of bottom squarks with masses up to 660 GeV for mass splittings between the squark and the neutralino of 10 GeV. These limits extend substantially beyond the regions of parameter space excluded by similar ATLAS searches performed previously.
Location: United Kingdom of Great Britain and Northern Ireland
Location: Bahrain
No related grants have been discovered for Jamil Ahmed.