Results 71 to 80 of about 472,208 (268)

Jet tomography in high-energy nuclear collisions [PDF]

open access: yesEPJ Web of Conferences, 2019
When an energetic parton traversing the QCD medium, it may suffer multiple scatterings and lose energy. This jet quenching phenomenon may lead to the suppression of leading hadron productions as well as medium modifications of full jet observables in ...
Zhang Ben-Wei   +4 more
doaj   +1 more source

The Quark Orbital Angular Momentum in a Light-Cone Representation

open access: yes, 1998
We perform an analysis of the quark angular momentum in a light-cone representation by taking into account the effect due to the Melosh-Wigner rotation and find that there is a relativistic correction factor connecting the quark orbital angular momentum ...
Ma, Bo-Qiang, Schmidt, Ivan
core   +2 more sources

An alternative approach to the $\sigma$-meson-exchange in nucleon-nucleon interaction [PDF]

open access: yes, 2007
Through a quantitative comparative study of the properties of deuteron and nucleon-nucleon interaction with chiral quark model and quark delocalization color screening model.
Fan Wang   +5 more
core   +1 more source

$\overline{\rm MS}$-on-shell quark mass relation up to four loops in QCD and a general SU$(N)$ gauge group [PDF]

open access: yes, 2016
We compute the relation between heavy quark masses defined in the modified minimal subtraction and the on-shell schemes. Detailed results are presented for all coefficients of the $\mathrm{SU}({N}_{c})$ color factors.
P. Marquard   +4 more
semanticscholar   +1 more source

Potential Biomarkers for Disease Stratification and Prognosis Prediction in Pediatric Asthma: LCN2, sST2 and FGF21

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Pediatric asthma is a common chronic airway inflammatory disease, where accurate assessment of disease severity and prognosis prediction is crucial for treatment decisions. Currently, there is a lack of precise and effective biomarkers.
Xu Yang   +5 more
wiley   +1 more source

B c − → J / ψ → μ + μ − τ − → π − ν τ ρ − ν τ ℓ − ν ¯ ℓ ν τ ν ¯ τ $$ {B}_c^{-}\to J/\psi \left(\to {\mu}^{+}{\mu}^{-}\right){\tau}^{-}\left(\to {\pi}^{-}{\nu}_{\tau },{\rho}^{-}{\nu}_{\tau },{\ell}^{-}{\overline{\nu}}_{\ell }{\nu}_{\tau}\right){\overline{\nu}}_{\tau } $$ decays with visible final-state kinematics

open access: yesJournal of High Energy Physics, 2023
The semitauonic B c − → J / ψ τ − ν ¯ τ $$ {B}_c^{-}\to J/\psi {\tau}^{-}{\overline{\nu}}_{\tau } $$ decay provides an ideal and clean mode to scrutinize possible new physics effects in b → c τ − ν ¯ τ $$ b\to c{\tau}^{-}{\overline{\nu}}_{\tau ...
Xin-Qiang Li   +3 more
doaj   +1 more source

Predators and scavengers: Polar bears as marine carrion providers

open access: yesOikos, EarlyView.
Scavenging is a foraging strategy widely used across the animal kingdom and apex predators provide a large amount of energy in a food web by provisioning carrion. In the harsh environmental conditions of the Arctic, apex predators such as polar bears Ursus maritimus can provide scavenging opportunities for many species. Carrion can act as a buffer when
Holly E. L. Gamblin   +5 more
wiley   +1 more source

Probing new physics in class-I B-meson decays into heavy-light final states

open access: yesJournal of High Energy Physics, 2021
With updated experimental data and improved theoretical calculations, several significant deviations are being observed between the Standard Model predictions and the experimental measurements of the branching ratios of B ¯ s 0 → D s ∗ + L ...
Fang-Min Cai   +3 more
doaj   +1 more source

Quark-meson coupling model with short-range quark-quark interactions

open access: yes, 2000
Short-range quark-quark correlations are introduced into the quark-meson coupling (QMC) model phenomenologically. We study the effect of the correlations on the structure of the nucleon in dense nuclear matter.
Saito, Koichi, Tsushima, Kazuo
core   +1 more source

Measurement of the top quark mass using proton-proton data at √s=7 and 8 TeV

open access: yes, 2016
A new set of measurements of the top quark mass are presented, based on the proton-proton data recorded by the CMS experiment at the LHC at sqrt(s) = 8 TeV corresponding to a luminosity of 19.7 inverse femtobarns. The top quark mass is measured using the
V. Khachatryan   +95 more
semanticscholar   +1 more source

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