Results 121 to 130 of about 79,824 (254)

Heavy quarkonia in quark gluon plasma as open quantum systems

open access: yes, 2013
Dutta N. Heavy quarkonia in quark gluon plasma as open quantum systems.
Dutta, Nirupam
core  

Coulomb artifacts and breakdown of perturbative matching in lattice NRQCD

open access: yesJournal of High Energy Physics, 2017
By studying an explicit analytical solution of the Schrödinger equation with the Coulomb potential on the lattice we demonstrate a breakdown of perturbative matching for the description of the Coulomb artifacts in lattice NRQCD, which leads to a large ...
A. A. Penin, A. Rayyan
doaj   +1 more source

Analytical Description of the Distributions of Primary and Secondary Cosmogenic Particles

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this work, we present an analytical description of the energy distributions of primary and secondary cosmogenic particles on Earth in terms of parameters having clear physical meaning. A modified power law is assumed for energy distributions, incorporating terms such as energy loss/decay, which are effective at low energies, and a source term, which
Shvetaank Tripathi   +2 more
wiley   +1 more source

A method for model-independent measurement of the CKM angle β via time-dependent analysis of the B 0 → Dπ + π −, D → K s 0 π + π − decays

open access: yesJournal of High Energy Physics, 2018
A new method for model-independent measurement of the CKM angle β is proposed, that employs time-dependent analysis of flavour-tagged B 0 → Dπ+π− decays with D meson decays into C P $$ \mathcal{C}\mathcal{P} $$ -specific and K s 0 π + π − final states ...
A. Bondar, A. Kuzmin, V. Vorobyev
doaj   +1 more source

Mass Spectra, Radii, and Decay Widths of Toponium

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
In this work, the radial Schrodinger equation with a nonrelativistic quark potential model (NRQPM) is solved numerically by employing the shooting method. Calculated numerical wave functions (or solutions) are used to compute the masses, root mean square (RMS) radii, E1, M1 radiative transition widths, annihilation decay widths, and branching ratios of
Nosheen Akbar   +3 more
wiley   +1 more source

Progress in heavy quark physics Proceedings

open access: yes, 1998
The following topics were dealt with: Heavy quark effective theory, lattice quark models, quarkonia, QCD sum rules, heavy quark decays, CP violation, heavy quark productionSIGLEAvailable from TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB -
Schroeder, H. (eds.)   +3 more
core  

Quark and Gluon Form Factors at Three Loops in Perturbative QCD [PDF]

open access: yes, 2009
We compute the quark and gluon form factors at up to three-loop order within massless perturbative Quantum Chromodynamics by studying the photon-quark-anti-quark vertex and the effective vertex of a Higgs boson and two gluons.
IKIZLERLI, NEHIR
core  

Far-from-equilibrium heavy quark energy loss at strong coupling [PDF]

open access: yes, 2012
We study the energy loss of a heavy quark propagating through the matter produced in the collision of two sheets of energy [1]. Even though this matter is initially far-from-equilibrium we find that, when written in terms of the energy density, the ...
Lekaveckas, Mindaugas   +5 more
core   +1 more source

Signatures of quark gluon plasma formation in high-energy heavy ion collisions : a critical review

open access: yes, 2005
Ultra-relativistic heavy ion collisions offer the unique opportunity to probe highly excited dense nuclear matter under controlled laboratory conditions. The compelling driving force for such studies is the expectation that an entirely new form of matter
Greiner, Walter   +3 more
core  

ALICE detector status and upgrade plans

open access: yesEPJ Web of Conferences, 2013
ALICE is a general-purpose detector dedicated to heavy-ion physics at the CERN LHC. It is designed to address the physics of strongly interacting matter and the quark-gluon plasma at extreme values of energy density and temperature in nucleus-nucleus ...
Oyama Ken
doaj   +1 more source

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