Results 41 to 50 of about 8,696 (224)

Theoretical aspects of heavy-flavour production at ultra-high cosmic ray energies

open access: yesEPJ Web of Conferences, 2015
The main theoretical aspects of heavy-flavour production at ultra-high cosmic ray energies are reviewed, with particular emphasis in the new dynamical effects which are expected to be present in the kinematical range probed by the IceCube and Pierre ...
Gonçalves V. P.
doaj   +1 more source

Heavy-quark production in hadronic collisions [PDF]

open access: yesIl Nuovo Cimento A (1971-1996), 1996
We review the physics of heavy quark and quarkonium production in high energy hadronic collisions. We discuss the status of the theoretical calculations and compare the current results with the most recent measurements from the Tevatron collider experiments.
openaire   +2 more sources

A fragmentation-based study of heavy quark production

open access: yesJournal of High Energy Physics, 2020
Processes involving heavy quarks are a crucial component of the LHC physics program, both by themselves and as backgrounds for Higgs physics and new physics searches. In this work, we critically reconsider the validity of the widely-adopted approximation
Giovanni Ridolfi   +2 more
doaj   +1 more source

Measurement of the production of a W boson in association with a charm quark in pp collisions at s√ = 7 TeV with the ATLAS detector [PDF]

open access: yes, 2014
The production of a W boson in association with a single charm quark is studied using 4.6 fb−1 of pp collision data at s√ = 7 TeV collected with the ATLAS detector at the Large Hadron Collider.
Farrington, Sinead   +8 more
core   +1 more source

Polarized double-virtual amplitudes for heavy-quark pair production

open access: yesJournal of High Energy Physics, 2018
We present the two-loop virtual amplitudes for heavy-quark pair production in light quark-antiquark annihilation and gluon fusion channels, including full spin and color dependence. We use expansions around kinematical limits and numerical integration to
L. Chen, M. Czakon, R. Poncelet
doaj   +1 more source

Cerebral oxygen extraction across different exercise intensities: Role of arterial PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_2}}}$

open access: yesExperimental Physiology, EarlyView.
Abstract Stability in cerebral oxygen extraction fraction (OEF) is typically determined by alterations in cerebral blood flow (CBF). At rest, arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$) and OEF exhibit a strong inverse relationship owing to the powerful influence of PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$
L. Madden Brewster   +11 more
wiley   +1 more source

Collider sensitivity to SMEFT heavy-quark operators at one-loop in top-quark processes

open access: yesJournal of High Energy Physics
We study the effects of four-heavy-quark operators in the production of top quarks in the framework of the Standard Model Effective Field Theory (SMEFT) at the LHC. In particular, we compute for the first time the total contribution of the four-top-quark
C. Degrande, R. Rosenfeld, A. Vasquez
doaj   +1 more source

Measurements of the production cross-section of top quark pairs using the ATLAS detector at the LHC

open access: yesEPJ Web of Conferences, 2013
An overview of several ATLAS measurements of top quark pair production in proton-proton collisions at the LHC at center-of-mass energies of 7 and 8 TeV is presented.
Finelli Kevin
doaj   +1 more source

General mass treatment for Z boson production in association with a heavy quark at hadron colliders [PDF]

open access: yesEPJ Web of Conferences
We present the application of the ACOT and S-ACOT general mass variable flavor number schemes to proton-proton collisions with particular attention to the production of final states with at least one heavy quark.
Guzzi M.   +4 more
doaj   +1 more source

Off-Shell Effects for Single Top-Quark Production Processes at Hadron Colliders [PDF]

open access: yes, 2011
We present a calculation of s- and t-channel single top-quark production and decay at next-to-leading order in QCD for the Tevatron and for the LHC. The calculation includes the off-shell effects of the intermediate top-quark and the non-factorisable ...
MELLOR, PAUL
core  

Home - About - Disclaimer - Privacy