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Pregled bibliografske jedinice broj: 339379

Energy dependence of pi(+/-), p and (p)over-bar transverse momentum spectra for Au+Au collisions at root SNN=62.4 and 200 GeV

Abelev, B.I.; ...; Planinić, Mirko; Poljak, Nikola; et.al.
Energy dependence of pi(+/-), p and (p)over-bar transverse momentum spectra for Au+Au collisions at root SNN=62.4 and 200 GeV // Physics letters. B, 655 (2007), 3-4; 104-113 doi:10.1016/j.physletb.2007.06.035 (međunarodna recenzija, članak, znanstveni)

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Naslov
Energy dependence of pi(+/-), p and (p)over-bar transverse momentum spectra for Au+Au collisions at root SNN=62.4 and 200 GeV

Autori
Abelev, B.I. ; ... ; Planinić, Mirko ; Poljak, Nikola ; et.al.

Izvornik
Physics letters. B (0370-2693) 655 (2007), 3-4; 104-113

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
scattering; heavy ion gold pi; hadroproduction p; hadroproduction anti-p; hadroproduction transverse momentum; spectra energy dependence impact parameter; dependence nuclear matter; effect yield; (p pi+) yield; (anti-p pi-) jet; quenching quark; coalescence quark; recombination magnetic detector; STAR experimental results Brookhaven RHIC Coll 62.4; 200.0 GeV-cms/nucleon

Sažetak
We study the energy dependence of the transverse momentum (pT) spectra for charged pions, protons and anti-protons for Au+Au collisions at \sqrt{; ; s_NN}; ; = 62.4 and 200 GeV. Data are presented at mid-rapidity (|y| < 0.5) for 0.2 < pT < 12 GeV/c. In the intermediate pT region (2 < pT < 6 GeV/c), the nuclear modification factor is higher at 62.4 GeV than at 200 GeV, while at higher pT (pT >7 GeV/c) the modification is similar for both energies. The p/pi+ and pbar/pi- ratios for central collisions at \sqrt{; ; s_NN}; ; = 62.4 GeV peak at pT ~ 2 GeV/c. In the pT range where recombination is expected to dominate, the p/pi+ ratios at 62.4 GeV are larger than at 200 GeV, while the pbar/pi- ratios are smaller. For pT > 2 GeV/c, the pbar/pi- ratios at the two beam energies are independent of pT and centrality indicating that the dependence of the pbar/pi- ratio on pT does not change between 62.4 and 200 GeV. These findings challenge various models incorporating jet quenching and/or constituent quark coalescence.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Projekti:
119-0982887-1006 - Istraživanje hadronskih sustava upotrebom relativističkih projektila (Planinić, Mirko, MZOS ) ( CroRIS)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Mirko Planinić (autor)

Avatar Url Nikola Poljak (autor)

Poveznice na cjeloviti tekst rada:

doi

Citiraj ovu publikaciju:

Abelev, B.I.; ...; Planinić, Mirko; Poljak, Nikola; et.al.
Energy dependence of pi(+/-), p and (p)over-bar transverse momentum spectra for Au+Au collisions at root SNN=62.4 and 200 GeV // Physics letters. B, 655 (2007), 3-4; 104-113 doi:10.1016/j.physletb.2007.06.035 (međunarodna recenzija, članak, znanstveni)
Abelev, B., ..., Planinić, M., Poljak, N. & et.al. (2007) Energy dependence of pi(+/-), p and (p)over-bar transverse momentum spectra for Au+Au collisions at root SNN=62.4 and 200 GeV. Physics letters. B, 655 (3-4), 104-113 doi:10.1016/j.physletb.2007.06.035.
@article{article, author = {Abelev, B.I. and Planini\'{c}, Mirko and Poljak, Nikola}, year = {2007}, pages = {104-113}, DOI = {10.1016/j.physletb.2007.06.035}, keywords = {scattering, heavy ion gold pi, hadroproduction p, hadroproduction anti-p, hadroproduction transverse momentum, spectra energy dependence impact parameter, dependence nuclear matter, effect yield, (p pi+) yield, (anti-p pi-) jet, quenching quark, coalescence quark, recombination magnetic detector, STAR experimental results Brookhaven RHIC Coll 62.4, 200.0 GeV-cms/nucleon}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2007.06.035}, volume = {655}, number = {3-4}, issn = {0370-2693}, title = {Energy dependence of pi(+/-), p and (p)over-bar transverse momentum spectra for Au+Au collisions at root SNN=62.4 and 200 GeV}, keyword = {scattering, heavy ion gold pi, hadroproduction p, hadroproduction anti-p, hadroproduction transverse momentum, spectra energy dependence impact parameter, dependence nuclear matter, effect yield, (p pi+) yield, (anti-p pi-) jet, quenching quark, coalescence quark, recombination magnetic detector, STAR experimental results Brookhaven RHIC Coll 62.4, 200.0 GeV-cms/nucleon} }
@article{article, author = {Abelev, B.I. and Planini\'{c}, Mirko and Poljak, Nikola}, year = {2007}, pages = {104-113}, DOI = {10.1016/j.physletb.2007.06.035}, keywords = {scattering, heavy ion gold pi, hadroproduction p, hadroproduction anti-p, hadroproduction transverse momentum, spectra energy dependence impact parameter, dependence nuclear matter, effect yield, (p pi+) yield, (anti-p pi-) jet, quenching quark, coalescence quark, recombination magnetic detector, STAR experimental results Brookhaven RHIC Coll 62.4, 200.0 GeV-cms/nucleon}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2007.06.035}, volume = {655}, number = {3-4}, issn = {0370-2693}, title = {Energy dependence of pi(+/-), p and (p)over-bar transverse momentum spectra for Au+Au collisions at root SNN=62.4 and 200 GeV}, keyword = {scattering, heavy ion gold pi, hadroproduction p, hadroproduction anti-p, hadroproduction transverse momentum, spectra energy dependence impact parameter, dependence nuclear matter, effect yield, (p pi+) yield, (anti-p pi-) jet, quenching quark, coalescence quark, recombination magnetic detector, STAR experimental results Brookhaven RHIC Coll 62.4, 200.0 GeV-cms/nucleon} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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