Results 21 to 30 of about 121,350 (241)

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

Heavy-quark spin symmetry breaking in the Born-Oppenheimer approximation

open access: yesJournal of High Energy Physics, 2023
Heavy-quark spin symmetry is explicitly broken by the mass splitting between a heavy-light pseudoscalar meson and its vector partner. This fact plays a pivotal role in the physics of states whose mass lies close to the threshold of an open-flavor meson ...
R. Bruschini
doaj   +1 more source

Dedication to Nathan Isgur [PDF]

open access: yes, 2002
Nathan passed away in July after a lengthy illness. I am sure most of you are familiar with his many contributions to heavy quark physics and it is certainly fitting that we take a few minutes to honor him at the beginning of this meeting.
Wise, Mark B.
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

Prompt neutrinos and intrinsic charm at SHiP

open access: yesJournal of High Energy Physics, 2019
We present a new evaluation of the far-forward neutrino plus antineutrino flux and number of events from charm hadron decays in a 400 GeV proton beam dump experiment like the Search for Hidden Particles (SHiP).
Weidong Bai, Mary Hall Reno
doaj   +1 more source

Novel heavy-quark physics phenomena

open access: yesProgress in Particle and Nuclear Physics, 2020
80 pages, 32 figures.
Brodsky, S. J.   +3 more
openaire   +3 more sources

A self-consistent framework of topological amplitude and its SU(N) decomposition

open access: yesJournal of High Energy Physics, 2021
We propose a systematic theoretical framework for the topological amplitudes of the heavy meson decays and their SU(N) decomposition. In the framework, the topologies are expressed in invariant tensors and classified into tree- and penguin-operator ...
Di Wang, Cai-Ping Jia, Fu-Sheng Yu
doaj   +1 more source

On the short distance nonperturbative corrections in heavy quark expansion [PDF]

open access: yes, 2000
We study the corrections due to renormalons to the heavy hadron decay width.The renormalons contribution estimated in terms of finite gluon mass based on the assumption that the gluon mass represents the short distance nonperturbative effects in the ...
Arunagiri   +13 more
core   +3 more sources

STAR highlights on heavy ion physics

open access: yesEPJ Web of Conferences, 2015
RHIC-STAR is a mid-rapidity collider experiment for studying high energy nuclear collisions. The main physics goals of STAR experiment are 1) studying the properties of the strongly coupled Quark Gluon Plasma 2) explore the QCD phase diagram structure ...
Shi Shusu
doaj   +2 more sources

From topological amplitude to rescattering dynamics

open access: yesJournal of High Energy Physics, 2022
We proposed a theoretical framework to correlate the topological diagram at quark level and rescattering dynamics at hadron level. In the framework, both the hadronic triangle diagram, and the topological-scattering diagram, which is the intermediate ...
Di Wang
doaj   +1 more source

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