scholarly journals Heavy flavor at the large hadron collider in a strong coupling approach

2014 ◽  
Vol 735 ◽  
pp. 445-450 ◽  
Author(s):  
Min He ◽  
Rainer J. Fries ◽  
Ralf Rapp
Keyword(s):  
Large Hadron Collider ◽  
Strong Coupling ◽  
Hadron Collider ◽  
Heavy Flavor ◽  
Coupling Approach

Study of Υ(nS) → Bcρ and BcK∗ decays within the QCD factorization

2016 ◽  
Vol 31 (38) ◽  
pp. 1650209
Author(s):  
Qin Chang ◽  
Yunyun Zhang ◽  
Lin Han
Keyword(s):  
Large Hadron Collider ◽  
Quantum Chromodynamics ◽  
Branching Fractions ◽  
Hadron Collider ◽  
Heavy Flavor ◽  
Leading Order ◽  
Text Data ◽  
Weak Decays ◽  
Qcd Factorization ◽  
Belle Ii

Motivated by the heavy-flavor experiments at running Large Hadron Collider (LHC) and upgrading SuperKEKB, which provide abundant [Formula: see text] data samples, the tree-dominated [Formula: see text] and [Formula: see text] (n =1, 2, 3) weak decays are studied within the framework of quantum chromodynamics (QCD) factorization. The QCD corrections to the longitudinal and transverse amplitudes are evaluated at next-to-leading order, and the branching fractions and polarization fractions are predicted. Numerically, the [Formula: see text] decays have relatively large branching fractions at the order of [Formula: see text] and are in the scope of the LHC and SuperKEKB/Belle-II experiments.

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 Overview on Heavy-Flavour at RHIC and LHC

Proceedings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 29
Author(s):  
Andrea Dubla
Keyword(s):  
Large Hadron Collider ◽  
Decay Channel ◽  
Hadron Collider ◽  
Heavy Ion ◽  
Experimental Results ◽  
Heavy Flavor ◽  
Forward Rapidity ◽  
Relativistic Heavy Ion Collider ◽  
Leptonic Decays ◽  
Energy Domain

The PHENIX and STAR Collaborations at the Relativistic Heavy-Ion Collider and ALICE, CMS, ATLAS and LHCb Collaborations at the Large Hadron Collider have measured the production of charmonium and bottonium states as well as open heavy flavor hadrons via their hadronic and semi-leptonic decays at mid-rapidity and in the semi-muonic decay channel at forward rapidity in pp, p–A and A–A collisions in an energy domain that ranges from s = 0.2 TeV to s = 13 TeV in pp collisions and from s NN = 0.2 TeV to s NN = 5.02 TeV in A–A collisions. In this contribution the latest experimental results will be reviewed.

scholarly journals Exploring color-octet scalar parameter space in minimal R-symmetric models

2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Linda M. Carpenter ◽  
Taylor Murphy ◽  
Matthew J. Smylie
Keyword(s):  
Large Hadron Collider ◽  
Parameter Space ◽  
Branching Fractions ◽  
Hadron Collider ◽  
Collider Phenomenology ◽  
Decay Channels ◽  
Color Octet ◽  
Supersymmetric Models ◽  
Three Body ◽  
Displaced Vertex

Abstract In this work we study the collider phenomenology of color-octet scalars (sgluons) in minimal supersymmetric models endowed with a global continuous R symmetry. We systematically catalog the significant decay channels of scalar and pseudoscalar sgluons and identify novel features that are natural in these models. These include decays in nonstandard diboson channels, such as to a gluon and a photon; three-body decays with considerable branching fractions; and long-lived particles with displaced vertex signatures. We also discuss the single and pair production of these particles and show that they can evade existing constraints from the Large Hadron Collider, to varying extents, in large regions of reasonable parameter space. We find, for instance, that a 725 GeV scalar and a 350 GeV or lighter pseudoscalar can still be accommodated in realistic scenarios.

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 Effect of crab cavity high order modes on the coupled-bunch stability of High-Luminosity Large Hadron Collider

2019 ◽  
Vol 22 (5) ◽  
Author(s):  
S. A. Antipov ◽  
N. Biancacci ◽  
J. Komppula ◽  
E. Métral ◽  
B. Salvant ◽  
...  
Keyword(s):  
Large Hadron Collider ◽  
Hadron Collider ◽  
High Order ◽  
High Luminosity

scholarly journals Automatic detection of transverse beam instabilities in the Large Hadron Collider

2019 ◽  
Vol 22 (11) ◽  
Author(s):  
T. E. Levens ◽  
K. Łasocha ◽  
T. Lefevre ◽  
M. Gąsior ◽  
R. Jones ◽  
...  
Keyword(s):  
Large Hadron Collider ◽  
Hadron Collider ◽  
Automatic Detection ◽  
Transverse Beam ◽  
Beam Instabilities
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