Light-front wavefunction dependence of quark recombination

Byungsik Hong, Chueng Ryong Ji, Dong Pil Min

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We present an extension of the recombination formalism to analyze the effects of variation of the hadron wavefunctions. The hadron spectra are sensitive to the shape of the wavefunctions. However, when we fit the wavefunction parameters to the physical observables, such as the average charge radius, the final spectra are very similar to one another. We discuss our numerical results in comparison with the published PHENIX and STAR data for the BNL Relativistic Heavy Ion Collider. In the hadron spectra, the recombination of thermal partons dominates at intermediate transverse momentum (PT=2-5 GeV), and the fragmentation dominates at high PT(>5 GeV). The yield ratios and the nuclear modification factors for various hadron species are also estimated and compared with the experimental data. We present a new prediction for p̄/p and K-/K+ ratios, including the jet quenching effects on the fragmentation mechanism.

Original languageEnglish
Article number054901
JournalPhysical Review C - Nuclear Physics
Volume73
Issue number5
DOIs
Publication statusPublished - 2006 May 15

Fingerprint

quarks
fragmentation
transverse momentum
partons
heavy ions
quenching
formalism
radii
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Light-front wavefunction dependence of quark recombination. / Hong, Byungsik; Ji, Chueng Ryong; Min, Dong Pil.

In: Physical Review C - Nuclear Physics, Vol. 73, No. 5, 054901, 15.05.2006.

Research output: Contribution to journalArticle

@article{b8cd6a5b163b46b195d9b8bfb7d30e33,
title = "Light-front wavefunction dependence of quark recombination",
abstract = "We present an extension of the recombination formalism to analyze the effects of variation of the hadron wavefunctions. The hadron spectra are sensitive to the shape of the wavefunctions. However, when we fit the wavefunction parameters to the physical observables, such as the average charge radius, the final spectra are very similar to one another. We discuss our numerical results in comparison with the published PHENIX and STAR data for the BNL Relativistic Heavy Ion Collider. In the hadron spectra, the recombination of thermal partons dominates at intermediate transverse momentum (PT=2-5 GeV), and the fragmentation dominates at high PT(>5 GeV). The yield ratios and the nuclear modification factors for various hadron species are also estimated and compared with the experimental data. We present a new prediction for p̄/p and K-/K+ ratios, including the jet quenching effects on the fragmentation mechanism.",
author = "Byungsik Hong and Ji, {Chueng Ryong} and Min, {Dong Pil}",
year = "2006",
month = "5",
day = "15",
doi = "10.1103/PhysRevC.73.054901",
language = "English",
volume = "73",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "5",

}

TY - JOUR

T1 - Light-front wavefunction dependence of quark recombination

AU - Hong, Byungsik

AU - Ji, Chueng Ryong

AU - Min, Dong Pil

PY - 2006/5/15

Y1 - 2006/5/15

N2 - We present an extension of the recombination formalism to analyze the effects of variation of the hadron wavefunctions. The hadron spectra are sensitive to the shape of the wavefunctions. However, when we fit the wavefunction parameters to the physical observables, such as the average charge radius, the final spectra are very similar to one another. We discuss our numerical results in comparison with the published PHENIX and STAR data for the BNL Relativistic Heavy Ion Collider. In the hadron spectra, the recombination of thermal partons dominates at intermediate transverse momentum (PT=2-5 GeV), and the fragmentation dominates at high PT(>5 GeV). The yield ratios and the nuclear modification factors for various hadron species are also estimated and compared with the experimental data. We present a new prediction for p̄/p and K-/K+ ratios, including the jet quenching effects on the fragmentation mechanism.

AB - We present an extension of the recombination formalism to analyze the effects of variation of the hadron wavefunctions. The hadron spectra are sensitive to the shape of the wavefunctions. However, when we fit the wavefunction parameters to the physical observables, such as the average charge radius, the final spectra are very similar to one another. We discuss our numerical results in comparison with the published PHENIX and STAR data for the BNL Relativistic Heavy Ion Collider. In the hadron spectra, the recombination of thermal partons dominates at intermediate transverse momentum (PT=2-5 GeV), and the fragmentation dominates at high PT(>5 GeV). The yield ratios and the nuclear modification factors for various hadron species are also estimated and compared with the experimental data. We present a new prediction for p̄/p and K-/K+ ratios, including the jet quenching effects on the fragmentation mechanism.

UR - http://www.scopus.com/inward/record.url?scp=33646417928&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33646417928&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.73.054901

DO - 10.1103/PhysRevC.73.054901

M3 - Article

VL - 73

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 5

M1 - 054901

ER -