scholarly journals Unraveling the couplings of a Drell-Yan produced Z′ with heavy-flavor tagging

2018 ◽  
Vol 98 (1) ◽  
Author(s):  
Wei-Shu Hou ◽  
Masaya Kohda ◽  
Tanmoy Modak
Keyword(s):  
Heavy Flavor ◽  
Flavor Tagging

scholarly journals Heavy-flavor tagging and the supersymmetry reach of the CERN Large Hadron Collider

2008 ◽  
Vol 56 (4) ◽  
pp. 511-528 ◽  
Author(s):  
R. H. K. Kadala ◽  
P. G. Mercadante ◽  
J. K. Mizukoshi ◽  
Xerxes Tata
Keyword(s):  
Large Hadron Collider ◽  
Hadron Collider ◽  
Heavy Flavor ◽  
Cern Large Hadron Collider ◽  
Flavor Tagging

scholarly journals Efficiency Parameterization with Neural Networks

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Francesco Armando Di Bello ◽  
Jonathan Shlomi ◽  
Chiara Badiali ◽  
Guglielmo Frattari ◽  
Eilam Gross ◽  
...  
Keyword(s):  
Neural Network ◽  
High Energy Physics ◽  
High Energy ◽  
Heavy Flavor ◽  
Neural Network Approach ◽  
Large Samples ◽  
Local Densities ◽  
Flavor Tagging ◽  
Physics Experiments ◽  
Energy Physics

AbstractMultidimensional efficiency maps are commonly used in high-energy physics experiments to mitigate the limitations in the generation of large samples of simulated events. Binned efficiency maps are however strongly limited by statistics. We propose a neural network approach to learn ratios of local densities to estimate in an optimal fashion efficiencies as a function of a set of parameters. Graph neural network techniques are used to account for the high dimensional correlations between different physics objects in the event. We show in a specific toy model how this method is applicable to produce accurate multidimensional efficiency maps for heavy-flavor tagging classifiers in HEP experiments, including for processes on which it was not trained.

Heavy flavor results from PHENIX at RHIC

2009 ◽  
Author(s):  
Raphael Granier de Cassagnac
Keyword(s):  
Heavy Flavor

scholarly journals Heavy-flavor hadro-production with heavy-quark masses renormalized in the $$ \overline{\mathrm{MS}} $$, MSR and on-shell schemes

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
M. V. Garzelli ◽  
L. Kemmler ◽  
S. Moch ◽  
O. Zenaiev
Keyword(s):  
Heavy Quark ◽  
Cross Sections ◽  
Top Quark ◽  
Quark Mass ◽  
Production Cross ◽  
Hadron Collider ◽  
Distribution Functions ◽  
Heavy Flavor ◽  
Parton Distribution Functions ◽  
Heavy Quark Mass

Abstract We present predictions for heavy-quark production at the Large Hadron Collider making use of the $$ \overline{\mathrm{MS}} $$ MS ¯ and MSR renormalization schemes for the heavy-quark mass as alternatives to the widely used on-shell renormalization scheme. We compute single and double differential distributions including QCD corrections at next-to-leading order and investigate the renormalization and factorization scale dependence as well as the perturbative convergence in these mass renormalization schemes. The implementation is based on publicly available programs, MCFM and xFitter, extending their capabilities. Our results are applied to extract the top-quark mass using measurements of the total and differential $$ t\overline{t} $$ t t ¯ production cross-sections and to investigate constraints on parton distribution functions, especially on the gluon distribution at low x values, from available LHC data on heavy-flavor hadro-production.

scholarly journals Sum rules for heavy flavor transitions in the small velocity limit

1995 ◽  
Vol 52 (1) ◽  
pp. 196-235 ◽  
Author(s):  
I. Bigi ◽  
M. Shifman ◽  
N. G. Uraltsev ◽  
A. Vainshtein
Keyword(s):  
Sum Rules ◽  
Heavy Flavor ◽  
Small Velocity

Heavy-flavor-conserving nonleptonic weak decays of heavy baryons

1992 ◽  
Vol 46 (11) ◽  
pp. 5060-5068 ◽  
Author(s):  
Hai-Yang Cheng ◽  
Chi-Yee Cheung ◽  
Guey-Lin Lin ◽  
Y. C. Lin ◽  
Tung-Mow Yan ◽  
...  
Keyword(s):  
Heavy Flavor ◽  
Weak Decays ◽  
Heavy Baryons

scholarly journals Heavy-Flavor Contribution to Bhabha Scattering

2008 ◽  
Vol 100 (13) ◽  
Author(s):  
R. Bonciani ◽  
A. Ferroglia ◽  
A. A. Penin
Keyword(s):  
Heavy Flavor ◽  
Bhabha Scattering

scholarly journals Future of Jets, Heavy Flavor and EM Probes at RHIC and RHIC II

2006 ◽  
Vol 25 (2-4) ◽  
pp. 487-498
Author(s):  
John W. Harris
Keyword(s):  
Heavy Flavor
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