ORCID Profile
0000-0003-3183-7316
Current Organisation
University of Michoacan
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: AIP
Date: 2006
DOI: 10.1063/1.2359260
Publisher: Elsevier BV
Date: 03-2005
Publisher: American Physical Society (APS)
Date: 17-04-2020
Publisher: Elsevier BV
Date: 04-1998
Publisher: Springer Science and Business Media LLC
Date: 17-08-2018
Publisher: American Physical Society (APS)
Date: 10-01-2019
Publisher: IOP Publishing
Date: 05-2006
Publisher: Elsevier BV
Date: 04-2005
Publisher: IOP Publishing
Date: 05-2006
Publisher: American Physical Society (APS)
Date: 15-12-1994
Publisher: AIP Publishing
Date: 12-2001
DOI: 10.1063/1.1416887
Abstract: We derive expressions for the phase space of a particle of momentum p decaying into N particles, that are valid for any number of dimensions. These are the imaginary parts of so-called “sunset” diagrams, which we also obtain. The results are given as a series of hypergeometric functions, which terminate for odd dimensions and are also well suited for deriving the threshold behavior.
Publisher: American Physical Society (APS)
Date: 24-04-2003
Publisher: American Physical Society (APS)
Date: 09-05-2008
Publisher: IOP Publishing
Date: 05-2019
DOI: 10.1088/1742-6596/1208/1/012002
Abstract: Gauge theories such as quantum electrodynamics (QED) and quantum chromodynamics (QCD) describe the physical world accurately at the level of fundamental particles. They possess gauge symmetry reflected in terms of several identities and transformation laws which impose tight constraints on all conceivable Green functions which define the theory. In this article, we describe and summarize the role played by the Landau-Khalatnikov-Fradkin (LKF) transformations in this context. Within the set of covariant gauges, these transformations tell us how to construct a Green function in an arbitrary gauge, starting from its explicit expression in a particular gauge. In perturbation theory, these transformations are satisfied at every order of approximation. A non-perturbative description of QED and QCD in the continuum is provided by the Schwinger-Dyson Equations (SDEs). These are the fundamental equations of motion encoding the dynamics of Green functions. These equations provide a unified description of weak and strong coupling regimes and are thus increasingly employed to study strongly interacting theories and their transition to the perturbative limit. As these equations are an infinite set of coupled non-linear equations, a truncation is essential to reduce them to a solvable number. LKF transformations provide a stringent constraint on the acceptable truncations which preserve the original symmetries of the gauge theory involved. Most of these truncations consist in cleverly constructing an Anstaz for the electron-photon vertex in QED and the quark-gluon vertex in QCD. In this article, we review the LKF transformations for the fermion propagator. Very importantly, they imply the gauge invariance of the chiral fermion condensate and the pole mass of a fermion. We provide the first demonstration of the latter in this article. Moreover, we also describe how the LKF transformations of the fermion propagator provide gauge-symmetry constraints on a non-perturbative construction of the three-point fermion-boson vertex.
Publisher: ASCE
Date: 2009
DOI: 10.1063/1.3131577
Publisher: American Physical Society (APS)
Date: 24-09-2015
Publisher: American Physical Society (APS)
Date: 12-11-2002
Publisher: American Physical Society (APS)
Date: 28-09-2001
Publisher: American Physical Society (APS)
Date: 26-04-2023
Publisher: Elsevier BV
Date: 10-2000
Publisher: American Physical Society (APS)
Date: 26-04-2023
Publisher: Springer Science and Business Media LLC
Date: 07-2005
Publisher: American Physical Society (APS)
Date: 07-06-2010
Publisher: IOP Publishing
Date: 05-2006
Publisher: American Physical Society (APS)
Date: 22-06-2011
Publisher: American Physical Society (APS)
Date: 15-04-1996
Publisher: IOP Publishing
Date: 05-2006
Publisher: American Physical Society (APS)
Date: 17-02-2004
Publisher: IOP Publishing
Date: 05-2006
Publisher: IOP Publishing
Date: 10-11-2008
Publisher: American Physical Society (APS)
Date: 17-10-2012
Publisher: American Physical Society (APS)
Date: 11-09-2000
Publisher: American Physical Society (APS)
Date: 10-11-2008
Publisher: Sissa Medialab
Date: 12-02-2014
DOI: 10.22323/1.193.0037
Publisher: American Physical Society (APS)
Date: 23-05-2016
Publisher: Elsevier BV
Date: 12-2020
Publisher: ASCE
Date: 2009
DOI: 10.1063/1.3131546
Publisher: American Physical Society (APS)
Date: 17-01-2023
Publisher: American Physical Society (APS)
Date: 04-09-2013
Publisher: FapUNIFESP (SciELO)
Date: 03-2007
Publisher: American Physical Society (APS)
Date: 15-01-1998
Publisher: American Physical Society (APS)
Date: 08-11-2013
Publisher: American Physical Society (APS)
Date: 25-03-2021
Publisher: American Physical Society (APS)
Date: 09-11-2021
Publisher: American Physical Society (APS)
Date: 17-05-2006
Publisher: Jagiellonian University
Date: 2018
Publisher: American Physical Society (APS)
Date: 16-06-2011
Publisher: Springer Science and Business Media LLC
Date: 10-2019
Publisher: World Scientific Pub Co Pte Lt
Date: 06-2013
DOI: 10.1142/S0218301313300154
Abstract: Studies of the structure of excited baryons are key factors to the N* program at Jefferson Lab (JLab). Within the first year of data taking with the Hall B CLAS12 detector following the 12 GeV upgrade, a dedicated experiment will aim to extract the N* electrocouplings at high photon virtualities Q 2 . This experiment will allow exploration of the structure of N* resonances at the highest photon virtualities ever achieved, with a kinematic reach up to Q 2 = 12 GeV 2 . This high-Q 2 reach will make it possible to probe the excited nucleon structures at distance scales ranging from where effective degrees of freedom, such as constituent quarks, are dominant through the transition to where nearly massless bare-quark degrees of freedom are relevant. In this document, we present a detailed description of the physics that can be addressed through N* structure studies in exclusive meson electroproduction. The discussion includes recent advances in reaction theory for extracting N* electrocouplings from meson electroproduction off protons, along with Quantum Chromodynamics (QCD)-based approaches to the theoretical interpretation of these fundamental quantities. This program will afford access to the dynamics of the nonperturbative strong interaction responsible for resonance formation, and will be crucial in understanding the nature of confinement and dynamical chiral symmetry breaking in baryons, and how excited nucleons emerge from QCD.
Publisher: American Physical Society (APS)
Date: 31-07-2002
Publisher: WORLD SCIENTIFIC
Date: 04-2018
Publisher: American Physical Society (APS)
Date: 10-08-2009
Publisher: Elsevier BV
Date: 08-2015
Publisher: American Physical Society (APS)
Date: 04-2016
Publisher: American Physical Society (APS)
Date: 19-02-2016
Publisher: IOP Publishing
Date: 10-06-2004
Publisher: American Physical Society (APS)
Date: 19-04-2022
Publisher: American Physical Society (APS)
Date: 28-09-2010
Publisher: Springer Science and Business Media LLC
Date: 09-2021
Publisher: Springer Science and Business Media LLC
Date: 19-09-2009
Publisher: American Physical Society (APS)
Date: 23-09-2019
Publisher: American Physical Society (APS)
Date: 02-03-2023
Publisher: American Physical Society (APS)
Date: 10-11-2022
Publisher: IOP Publishing
Date: 11-04-2014
Publisher: American Physical Society (APS)
Date: 06-12-2007
Publisher: IOP Publishing
Date: 23-11-2009
Publisher: IOP Publishing
Date: 24-03-2014
Publisher: IOP Publishing
Date: 07-2012
Publisher: Springer Science and Business Media LLC
Date: 02-06-2018
Publisher: American Physical Society (APS)
Date: 09-12-2010
Publisher: American Physical Society (APS)
Date: 15-04-2020
Publisher: American Physical Society (APS)
Date: 20-12-2019
Publisher: IOP Publishing
Date: 09-1999
Publisher: American Physical Society (APS)
Date: 25-06-2001
Publisher: American Physical Society (APS)
Date: 11-1997
Publisher: AIP
Date: 2006
DOI: 10.1063/1.2359274
Publisher: Springer Science and Business Media LLC
Date: 03-2017
Publisher: American Physical Society (APS)
Date: 16-04-2018
Publisher: American Physical Society (APS)
Date: 11-02-2011
Publisher: American Physical Society (APS)
Date: 15-04-2016
Publisher: IOP Publishing
Date: 03-11-2015
Publisher: American Physical Society (APS)
Date: 10-04-2017
Publisher: Springer Science and Business Media LLC
Date: 18-07-2007
Publisher: AIP
Date: 2008
DOI: 10.1063/1.2965032
Publisher: ASCE
Date: 2009
DOI: 10.1063/1.3131602
Publisher: AIP
Date: 2003
DOI: 10.1063/1.1594328
Publisher: AIP
Date: 2007
DOI: 10.1063/1.2714384
Publisher: American Physical Society (APS)
Date: 25-01-2013
Publisher: American Physical Society (APS)
Date: 06-09-2011
Publisher: American Physical Society (APS)
Date: 29-08-2011
Publisher: AIP
Date: 1999
DOI: 10.1063/1.1301392
Location: United Kingdom of Great Britain and Northern Ireland
Location: United States of America
No related grants have been discovered for Adnan Bashir.