Transverse momentum dependence of spectra of cumulative particles produced from droplets of dense nuclear matter
Abstract
The transverse momentum dependence of the yields of particles produced from the clusters of dense cold nuclear matter in nuclei is calculated in the approach based on perturbative QCD calculations of the corresponding quark diagrams near the thresholds. It is shown that the transverse momentum dependence of the pion and proton spectra at different values of the Feynman variable x in the cumulative region, x > 1, can be described by the only parameter - the constituent quark mass, taken to be equal 300 MeV. It is found that the cumulative protons are formed predominantly via a coherent coalescence of three fast cluster quarks, whereas the production of cumulative pions is dominated by one fast cluster quark hadronization. This enabled to explain the experimentally observed more slow increase of the mean transverse momentum of cumulative protons with the increase of the cumulative variable x, compared to pions.
- Authors:
-
- Saint Petersburg State University, Saint Petersburg, Russia v.vechernin@spbu.ru (Russian Federation)
- Publication Date:
- OSTI Identifier:
- 22499074
- Resource Type:
- Journal Article
- Journal Name:
- AIP Conference Proceedings
- Additional Journal Information:
- Journal Volume: 1701; Journal Issue: 1; Conference: 11. conference on quark confinement and hadron spectrum, Saint Petersburg (Russian Federation), 8-12 Sep 2014; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPARATIVE EVALUATIONS; DIAGRAMS; DROPLETS; MASS; MEV RANGE 100-1000; NUCLEAR MATTER; PIONS; PROTON SPECTRA; PROTONS; QUANTUM CHROMODYNAMICS; QUARKS; TRANSVERSE MOMENTUM
Citation Formats
Vechernin, Vladimir. Transverse momentum dependence of spectra of cumulative particles produced from droplets of dense nuclear matter. United States: N. p., 2016.
Web. doi:10.1063/1.4938683.
Vechernin, Vladimir. Transverse momentum dependence of spectra of cumulative particles produced from droplets of dense nuclear matter. United States. https://doi.org/10.1063/1.4938683
Vechernin, Vladimir. 2016.
"Transverse momentum dependence of spectra of cumulative particles produced from droplets of dense nuclear matter". United States. https://doi.org/10.1063/1.4938683.
@article{osti_22499074,
title = {Transverse momentum dependence of spectra of cumulative particles produced from droplets of dense nuclear matter},
author = {Vechernin, Vladimir},
abstractNote = {The transverse momentum dependence of the yields of particles produced from the clusters of dense cold nuclear matter in nuclei is calculated in the approach based on perturbative QCD calculations of the corresponding quark diagrams near the thresholds. It is shown that the transverse momentum dependence of the pion and proton spectra at different values of the Feynman variable x in the cumulative region, x > 1, can be described by the only parameter - the constituent quark mass, taken to be equal 300 MeV. It is found that the cumulative protons are formed predominantly via a coherent coalescence of three fast cluster quarks, whereas the production of cumulative pions is dominated by one fast cluster quark hadronization. This enabled to explain the experimentally observed more slow increase of the mean transverse momentum of cumulative protons with the increase of the cumulative variable x, compared to pions.},
doi = {10.1063/1.4938683},
url = {https://www.osti.gov/biblio/22499074},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1701,
place = {United States},
year = {Fri Jan 22 00:00:00 EST 2016},
month = {Fri Jan 22 00:00:00 EST 2016}
}