Results 31 to 40 of about 79,824 (254)

Heavy-quark physics with a tmQCD valence action [PDF]

open access: yesProceedings of The 36th Annual International Symposium on Lattice Field Theory — PoS(LATTICE2018), 2018
We introduce a mixed-action approach based on CLS ensembles, where a valence $N_f$=2+1+1 Twisted Mass QCD action is combined with the $N_f$=2+1 non-perturbatively O$(a)$-improved Wilson sea sector.
A. Bussone   +6 more
semanticscholar   +1 more source

Perturbative and non-perturbative interactions between heavy quarks and quark-gluon plasma within a unified approach [PDF]

open access: yesPhysics Letters B, 2021
While perturbative QCD is sufficient for understanding the color, mass and energy dependences of parton energy loss and jet quenching at large transverse momentum in heavy-ion collisions, a simultaneous description of heavy flavor nuclear modification ...
Wen-Jing Xing, G. Qin, S. Cao
semanticscholar   +1 more source

X 0(2900) and its heavy quark spin partners in molecular picture [PDF]

open access: yesChinese Physics C, High Energy Physics & Nuclear Physics, 2020
The , recently observed by the LHCb Collaboration in the invariant mass of the process, is the first exotic candidate with four different flavors, beginning a new era for the hadron community.
M. Hu 胡   +3 more
semanticscholar   +1 more source

QCD at the amplitude level: Fock state interference in heavy quark electroproduction

open access: yesJournal of High Energy Physics, 2023
Quantum chromodynamics (QCD) rigorously predicts the existence of both nonperturbative intrinsic and perturbative extrinsic heavy quark contents of nucleons.
Valery E. Lyubovitskij, Ivan Schmidt
doaj   +1 more source

QCD light-cone distribution amplitudes of heavy mesons from boosted HQET

open access: yesJournal of High Energy Physics, 2023
Light-cone distribution amplitudes (LCDAs) frequently arise in factorization theorems involving light and heavy mesons. The QCD LCDA for heavy mesons includes short-distance physics at energy scales of the heavy-quark mass.
Martin Beneke   +3 more
doaj   +1 more source

Heavy quark diffusion in an overoccupied gluon plasma [PDF]

open access: yesJournal of High Energy Physics, 2020
We extract the heavy-quark diffusion coefficient κ and the resulting momentum broadening 〈p2〉 in a far-from-equilibrium non-Abelian plasma. We find several features in the time dependence of the momentum broadening: a short initial rapid growth of 〈p2 ...
K. Boguslavski   +5 more
semanticscholar   +1 more source

The physics of heavy quark distributions in hadrons: Collider tests [PDF]

open access: yes, 2016
We present a review of the current understanding of the heavy quark distributions in the nucleon and their impact on collider physics. The origin of strange, charm and bottom quark pairs at high light-front (LF) momentum fractions in hadron wavefunction ...
S. Brodsky   +4 more
semanticscholar   +1 more source

Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry [PDF]

open access: yesPhysics Letters B, 2019
We have studied the meson-baryon $S-$wave interaction, using coupled channels, in the isoscalar hidden-charm strange sector and $J^P = 1/2^-,3/2^-$ and $5/2^-$.
C. Xiao, J. Nieves, E. Oset, E. Oset
semanticscholar   +1 more source

Flavor physics in the quark sector [PDF]

open access: yes, 2008
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor. In this time frame, measurements and the theoretical interpretation of their results have advanced tremendously. A
Smith, Christopher   +999 more
core   +1 more source

Heavy quark physics [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1993
15 pages. Review presented at {\em Lattice 92}, Amsterdam, Sept. 15--19, 1992.
openaire   +2 more sources

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