Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Gambhir, Arjun Singh"'
Autor:
He, Jinchen, Brantley, David A., Chang, Chia Cheng, Chernyshev, Ivan, Berkowitz, Evan, Howarth, Dean, Körber, Christopher, Meyer, Aaron S., Monge-Camacho, Henry, Rinaldi, Enrico, Bouchard, Chris, Clark, M. A., Gambhir, Arjun Singh, Monahan, Christopher J., Nicholson, Amy, Vranas, Pavlos, Walker-Loud, André
Publikováno v:
Phys. Rev. C 105, 065203 (2022)
Excited state contamination remains one of the most challenging sources of systematic uncertainty to control in lattice QCD calculations of nucleon matrix elements and form factors: early time separations are contaminated by excited states and late t
Externí odkaz:
http://arxiv.org/abs/2104.05226
Autor:
Miller, Nolan, Carpenter, Logan C, Berkowitz, Evan, Chang, Chia Cheng, Hörz, Ben, Howarth, Dean, Monge-Camacho, Henry, Rinaldi, Enrico, Brantley, David A., Körber, Christopher, Bouchard, Chris, Clark, M. A., Gambhir, Arjun Singh, Monahan, Christopher J., Nicholson, Amy, Vranas, Pavlos, Walker-Loud, André
Publikováno v:
Phys. Rev. D 103, 054511 (2021)
We report on a sub-percent scale determination using the omega baryon mass and gradient-flow methods. The calculations are performed on 22 ensembles of $N_f=2+1+1$ highly improved, rooted staggered sea-quark configurations generated by the MILC and C
Externí odkaz:
http://arxiv.org/abs/2011.12166
Autor:
Miller, Nolan, Monge-Camacho, Henry, Chang, Chia Cheng, Hörz, Ben, Rinaldi, Enrico, Howarth, Dean, Berkowitz, Evan, Brantley, David A., Gambhir, Arjun Singh, Körber, Christopher, Monahan, Christopher J., Clark, M. A., Joó, Bálint, Kurth, Thorsten, Nicholson, Amy, Orginos, Kostas, Vranas, Pavlos, Walker-Loud, André
Publikováno v:
Phys. Rev. D 102, 034507 (2020)
We report the results of a lattice quantum chromodynamics calculation of $F_K/F_\pi$ using M\"{o}bius domain-wall fermions computed on gradient-flowed $N_f=2+1+1$ highly-improved staggered quark (HISQ) ensembles. The calculation is performed with fiv
Externí odkaz:
http://arxiv.org/abs/2005.04795
Autor:
Gambhir, Arjun Singh, Berkowitz, Evan, Brantley, David, Chang, Chia Cheng, Clark, M. A., Kurth, Thorsten, Monahan, Chris, Nicholson, Amy, Vranas, Pavlos, Walker-Loud, André
Publikováno v:
PoS(LATTICE2018)126
The Feynman-Hellmann method, as implemented by Bouchard et al. [1612.06963], was recently employed successfully to determine the nucleon axial charge. A limitation of the method was the restriction to a single operator and a single momentum during th
Externí odkaz:
http://arxiv.org/abs/1905.03355
Autor:
Gambhir, Arjun Singh, Stathopoulos, Andreas, Orginos, Kostas, Yoon, Boram, Gupta, Rajan, Syritsyn, Sergey
Publikováno v:
PoS(LATTICE2016)265
Computing disconnected diagrams in Lattice QCD (operator insertion in a quark loop) entails the computationally demanding problem of taking the trace of the all to all quark propagator. We first outline the basic algorithm used to compute a quark loo
Externí odkaz:
http://arxiv.org/abs/1611.01193
Publikováno v:
SIAM J. Sci. Comput., 39(2), A532 to A558, 2017
Many fields require computing the trace of the inverse of a large, sparse matrix. The typical method used for such computations is the Hutchinson method which is a Monte Carlo (MC) averaging over matrix quadratures. To improve its convergence, severa
Externí odkaz:
http://arxiv.org/abs/1603.05988
Autor:
Gambhir, Arjun Singh, Orginos, Kostas
Publikováno v:
PoS LATTICE 2014 (2015) 043
Reverse Monte Carlo (RMC) is an algorithm that incorporates stochastic modification of the action as part of the process that updates the fields in a Monte Carlo simulation. Such update moves have the potential of lowering or eliminating potential ba
Externí odkaz:
http://arxiv.org/abs/1506.06118
Autor:
He, Jinchen, Brantley, David A., Chang, Chia Cheng, Chernyshev, Ivan, Berkowitz, Evan, Howarth, Dean, Körber, Christopher, Meyer, Aaron S., Monge-Camacho, Henry, Rinaldi, Enrico, Bouchard, Chris, Clark, M. A., Gambhir, Arjun Singh, Monahan, Christopher J., Nicholson, Amy, Vranas, Pavlos, Walker-Loud, André
Publikováno v:
Physical Review C, vol 105, iss 6
Excited state contamination remains one of the most challenging sources of systematic uncertainty to control in lattice QCD calculations of nucleon matrix elements and form factors: early time separations are contaminated by excited states and late t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::255f2eec6eba40a8a60f965115a0e2f2
https://eprints.gla.ac.uk/273677/1/273677.pdf
https://eprints.gla.ac.uk/273677/1/273677.pdf
Autor:
Gambhir, Arjun Singh
Publikováno v:
Dissertations, Theses, and Masters Projects.
In this work, we present state-of-the-art numerical methods and their applications for computing a particular class of observables using lattice quantum chromodynamics (Lattice QCD), a discretized version of the fundamental theory of quarks and gluon
Autor:
Miller, Nolan, Carpenter, Logan, Bouchard, Chris, Clark, M. A., Gambhir, Arjun Singh, Monahan, Christopher J., Nicholson, Amy, Vranas, Pavlos, Walker-Loud, André, Berkowitz, Evan, Chang, Chia Cheng, Hörz, Ben, Howarth, Dean, Monge-Camacho, Henry, Rinaldi, Enrico, Brantley, David A., Körber, Christopher
Publikováno v:
Physical review / D 103(5), 054511 (2021). doi:10.1103/PhysRevD.103.054511
We report on a subpercent scale determination using the omega baryon mass and gradient-flow methods.The calculations are performed on 22 ensembles of $N_f=2+1+1$ highly improved, rooted staggered sea-quark configurations generated by the MILC and Cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3364::e9948d81ac9f08b8153967e80a8e658c
https://juser.fz-juelich.de/record/894473
https://juser.fz-juelich.de/record/894473