Zobrazeno 1 - 10
of 524
pro vyhledávání: '"Kopeliovich, B Z."'
Autor:
Kopeliovich, B. Z., Nemchik, J.
Data on high-$p_T$ hadron production in heavy ion collisions at Feynman $x_F=0$ indicate at universality of the observed nuclear suppression. Our analysis of the production mechanisms demonstrates important role of the color transparency effects whic
Externí odkaz:
http://arxiv.org/abs/2406.03755
We made the first attempt to understand the observed unusual t dependence of single-spin asymmetry observed in the HJET experiment at RHIC. Usually, the interaction of hadrons is presented as a long-range Coulomb interaction and a short-range strong
Externí odkaz:
http://arxiv.org/abs/2312.03702
Publikováno v:
Published in: Physics 2023, Volume 5, Issue 4, 1048-1060
Absorptive corrections, which are known to suppress proton-neutron transitions with a large fractional momentum z -> 1 in pp collisions, become dramatically strong on a nuclear target, and they push the partial cross sections of leading neutron produ
Externí odkaz:
http://arxiv.org/abs/2311.07084
Heavy and light quarks produced in high-$p_T$ partonic collisions radiate differently. Heavy quarks regenerate their color field, stripped-off in the hard reaction, much faster than the light ones and radiate a significantly smaller fraction of the i
Externí odkaz:
http://arxiv.org/abs/2307.15687
Soft hadronic collisions with multiple production of (anti)quarks accompanied with soft photon radiation are described in terms of higher Fock states of the colliding hadrons, which contain a photon component as well. The Fock state distribution func
Externí odkaz:
http://arxiv.org/abs/2212.03429
The anomalous excess of small-kT photons radiated along with multi-hadron production, is challenging the physics community over four decades, but no solution has been proposed so far. We argue that the problem is rooted in the comparison with an inco
Externí odkaz:
http://arxiv.org/abs/2212.03424
Autor:
Nemchik, J., Kopeliovich, B. Z.
Coherent photoproduction of heavy quarkonia on nuclear targets is studied within the QCD color dipole formalism including several main phenomena: i) The correlation between impact parameter of a collision $\vec b$ and dipole orientation $\vec r$; ii)
Externí odkaz:
http://arxiv.org/abs/2211.16271
Publikováno v:
Phys.Rev. D105, 054023 (2022)
The differential cross section of coherent photo-production of heavy quarkonia on nuclear targets is calculated within the QCD color dipole formalism. The higher-twist nuclear shadowing corresponding to the $\bar QQ$ Fock component of the photon, is
Externí odkaz:
http://arxiv.org/abs/2201.13021
Publikováno v:
Phys. Rev. D 103, 094027 (2021)
The differential cross section $d\sigma/dq^2$ of diffractive electroproduction of heavy quarkonia on protons is a sensitive study tool for the interaction dynamics within the dipole representation. Knowledge of the transverse momentum transfer $\vec
Externí odkaz:
http://arxiv.org/abs/2102.06106
Publikováno v:
Phys. Lett. B 816 (2021) 136262
Polarized pp elastic scattering at small angles in the Coulomb-nuclear interference (CNI) region offers a unique opportunity to study the spin structure of the Pomeron. Electromagnetic effects in elastic amplitude can be equivalently treated either a
Externí odkaz:
http://arxiv.org/abs/2102.01595