Strange antiparticle-to-particle ratios at mid-rapidity in =130 GeV Au+Au collisions

Adams, J. R.; Adler, C.; Ahammed, Z.; Allgower, C.; Amonett, J.; Anderson, B. D.; Anderson, M.; Averichev, G. S.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Bekele, S.; Belaga, V. V.; Bellwied, R.; Berger, J.; Bichsel, H.; Billmeier, A.; Bland, L. C.; Blyth, C. O.; Bonner, B. E.; Boucham, A.; Brandin, A. V.; Bravar, A.; Cadman, R. V.; Caines, H.; Sánchez, M. Calderón De La Barca; Cardenas, A.; Carroll, J.; Castillo, J.; Castro, M.; Cebra, D.; Chaloupka, P.; Chattopadhyay, S.; Chen, Y.; Chernenko, S.; Cherney, M.; Chikanian, A.; Choi, Bong‐Hyuk; Christie, W.; Coffin, J. P.; Cormier, Thomas Michael; Corral, M. M.; Cramer, J. G.; Crawford, H. J.; Deng, W.; Derevschikov, A. A.; Didenko, L.; Dietel, T.; Draper, J. E.; Dunin, V. B.; Dunlop, J. C.; Eckardt, V.; Efimov, L. G.; Емелянов, В.; Engelage, J.; Eppley, G.; Erazmus, B.; Fachini, P.; Faine, V.; Faivre, J.; Fatemi, R.; Filimonov, K.; Finch, E.; Fisyak, Y.; Flierl, D.; Foley, K. J.; Fu, J.; Gagliardi, C. A.; Gagunashvili, N.; Gans, J.; Gaudichet, L.; Germain, M.; Geurts, F. J. M.; Ghazikhanian, V.; Grachov, O.; Grigoriev, V.; Guedon, M.; Guertin, S. M.; Gushin, E.; Hallman, T. J.; Hardtke, D.; Harris, J. W.; Heinz, M.; Henry, T. W.; Heppelmann, S.; Herston, T.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffmann, G. W.; Horsley, M.; Huang, H. Z.; Humanic, T. J.; Igo, G.; Ishihara, A.; Ivanshin, Yu.; Jacobs, P.; Jacobs, W. W.; Janik, M. A.; Johnson, I.; Jones, P. G.; Judd, E. G.; Kaneta, M.; Kaplan, M.; Keane, D.; Kiryluk, J.; Kisiel, A.; Klay, J. L.; Klein, S. R.; Klyachko, A.; Kollegger, T.; Константинов, А. С.; Kopytine, M.; Kotchenda, L.; Kovalenko, A. D.; Krämer, M.; Кравцов, П.; Krueger, K.; Kuhn, C.; Куликов, А. И.; Kunde, G. J.; Kunz, C. L.; Kutuev, R.Kh.; Кузнецов, А. А.; Lamont, M. A.C.; Landgraf, J. M.; Lange, S.; Lansdell, C. P.; Lasiuk, B.; Laue, F.; Lauret, J.; Lebedev, A.; Lednický, R.; Leontiev, V. M.; LeVine, M. J.; Li, Q.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, L.; Liu, Z.; Liu, Q. J.; Ljubičić, T.; Llope, W. J.; Long, H.; Longacre, R. S.; Lopez-Noriega, M.; Love, W. A.; Ludlam, T.; Lynn, D.; Ma, J.; Magestro, D.; Majka, R.; Margetis, S.; Markert, C.; Martin, L.; Marx, J. N.; Matis, H. S.; Matulenko, Yu. A.; McShane, T. S.; Meißner, F.; Melnick, Yu; Meschanin, A.; Messer, M.; Miller, Michael L.; Milosevich, Z.; Minaev, N. G.; Mitchell, J. T.; Moore, C. F.; Morozov, V.; Moura, M. M. de; Munhoz, M. G.; Nelson, J. M.; Nevski, P.; Никитин, В. А.; Nogach, L. V.; Norman, B.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okorokov, V.; Oldenburg, M.; Olson, D.; Paić, G.; Pandey, S. U.; Panebratsev, Y.; Panitkin, S.; Pavlinov, A. I.; Pawlak, T.; Perevoztchikov, V.; Peryt, W.; Petrov, V.; Planinić, M.; Pluta, J.; Porile, N.; Porter, J.; Poskanzer, A. M.; Potrebenikova, E.; Prindle, D.; Pruneau, C.; Putschke, J.; Rai, G.; Rakness, G.; Ravel, O.; Ray, R. L.; Razin, S. V.; Reichhold, D.; Reid, J. G.; Renault, G.; Retière, F.; Ridiger, A.; Ritter, H. G.; Roberts, J.; Rogachevski, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Rykov, V. L.; Sakrejda, I.; Salur, S.; Sandweiss, J.; Savin, I.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Schroeder, L. S.; Schüttauf, A.; Schweda, K.; Seger, J.; Seliverstov, D. M.; Seyboth, P.; Shahaliev, E.; Shestermanov, K. E.; Shimanskii, S. S.; Simon, F.; Škoro, G.; Smirnov, N.; Snellings, Raimond; Sorensen, P.; Sowiński, J.; Spinka, H. M.; Srivastava, B.; Stephenson, E. J.; Stock, R.; Stolpovsky, A.; Strikhanov, M.; Stringfellow, B.; Struck, C.; Suaide, Alexandre Alarcon Do Passo; Sugarbaker, E.; Suire, C.; Šumbera, M.; Surrow, B.; Symons, T. J. M.; Toledo, A. Szanto de; Szarwas, P.; Tai, A.; Takahashi, J.; Tang, A. H.; Thein, D.; Thomas, J. H.; Thompson, M.; Tikhomirov, Vladimiro; Tokarev, M.; Tonjes, M. B.; Trainor, T. A.; Trentalange, S.; Tribble, R. E.; Trofimov, V.; Tsai, O. D.; Ullrich, T.; Underwood, D. G.; Buren, G. Van; VanderMolen, A. M.; Vasilevski, I. M.; Vasiliev, A.; Vigdor, S. E.; Voloshin, S. A.; Wang, F.; Ward, H.; Watson, J. W.; Wells, R.; Westfall, G. D.; Whitten, C.; Wieman, H.; Willson, R.; Wissink, S. W.; Witt, R.; Wood, J.; Xu, N.; Xu, Z.; Yakutin, A. E.; Yamamoto, E.; Yang, Jing; Yepes, P.; Yurevich, V. I.; Zanevski, Y. V.; Zborovský, I.; Zhang, H.; Zhang, W. M.; Zoulkarneev, R.; Zubarev, A. N.

doi:10.1016/j.physletb.2003.06.039

Cited by 41 publications

(30 citation statements)

References 52 publications

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“…These two parameters are determined by fitting the the total charged multiplicity data, N ch data = 4100 ± 210, in central Au+Au collisions at 130 AGeV [1], which corresponds to the total number of quarks and anti-quarks N q + N q = 7400 in the QCM. The quark number N q and the anti-quark number N q can be further determined by the ratio of antiproton to proton p/p = 0.7 [3,4]. Then we obtain N q = 3920 and N q = 3500, where we see that the net quark number is about 420.…”

Section: Hadron Multiplicities and Momentum Spectramentioning

confidence: 76%

“…Having determined the above parameters, we calculate the ratios of strange anti-baryons to their baryon counterparts, Λ/Λ, Ξ + /Ξ − ,Ω + /Ω − , in mid-rapidity of central Au+Au collisions and compare our results with STAR data [3,4]. The above antibaryon to baryon ratios are mainly controlled by the net quark number from colliding nucleons.…”

Section: Hadron Multiplicities and Momentum Spectramentioning

confidence: 99%

“…Recently a lot of data for hadron multiplicities have been published from the relativistic heavy ion collision (RHIC) at Brookhaven National Laboratory [1, 2,3,4,5,6,7,8]. One of the purpose of this experiment is to produce a deconfined phase of quarks and gluons (QGP) under extreme conditions at high temperature and density by smashing two gold nuclei.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Productions of hadrons, pentaquarksΘ+andΘ++, and di-baryon
Shao
¹
,
Xie
²
,
Wang
³

2005
Phys. Rev. C*

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The hadron production in relativistic heavy ion collisions is well described by the quark combination model. The mixed ratios for various hadrons and the transverse momentum spectra for long-life hadrons are predicted and agree with recent RHIC data. The production rates for the pentaquarks Θ + , Θ * ++ and the di-baryon (ΩΩ) 0 + are estimated, neglecting the effect from the transition amplitude for constituent quarks to form an exotic state.

show abstract

Section: Hadron Multiplicities and Momentum Spectramentioning

confidence: 76%

Section: Hadron Multiplicities and Momentum Spectramentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Productions of hadrons, pentaquarksΘ+andΘ++, and di-baryon
Shao
¹
,
Xie
²
,
Wang
³

2005
Phys. Rev. C*

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show abstract

“…We use for our analysis the yields of pions, kaons, (anti)protons [70] and Λ,Λ [71] measured by PHENIX, while for the other hadron species, Ξ, Ω [72,73], φ [74], K * [75], the data are from STAR. Most of the available data are not corrected for feed-down from weak decays, but these contributions are properly taken into account in the model calculations.…”

Section: Rhicmentioning

confidence: 99%

Hadron production in central nucleus–nucleus collisions at chemical freeze-out

2006

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We analyze the experimental hadron yield ratios for central nucleus-nucleus collisions in terms of thermal model calculations over a broad energy range, √ s N N =2.7-200 GeV. The fits of the experimental data with the model calculations provide the thermal parameters, temperature and baryo-chemical potential at chemical freezeout. We compare our results with the values obtained in other studies and also investigate more technical aspects such as a potential bias in the fits when fitting particle ratios or yields. Using parametrizations of the temperature and baryonic chemical potential as a function of energy, we compare the model calculations with data for a large variety of hadron yield ratios. We provide quantitative predictions for experiments at LHC energy, as well as for the low RHIC energy of 62.4 GeV. The relation of the determined parameters with the QCD phase boundary is discussed.

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“…most central 6%, 5%, 10%, 11% collisions for K The Λ and Ξ − yields do not vary much from SPS to RHIC, while a clear energy dependence is observed for K 0 S and all three antihyperons. The antihyperon to hyperon ratios are plotted in Figure 2 as a function of √ s N N from SPS to RHIC [11]. The ratios increase with increasing strangeness content of the hyperon, both at RHIC and SPS energies.…”

Section: Data Samples and Analysismentioning

confidence: 99%

Strange particle production in 158 and 40AGeV/cPb–Pb and p-Be collisions

Elia¹,

Collaboration²

2005

J. Phys. G: Nucl. Part. Phys.

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Abstract. Results on strange particle production in Pb-Pb collisions at 158 and 40 A GeV/c beam momentum from the NA57 experiment at CERN SPS are presented. Particle yields and ratios are compared with those measured at RHIC. Strangeness enhancements with respect to p-Be reactions at the same beam momenta have been also measured: results about their dependence on centrality and collision energy are reported and discussed.

show abstract

Strange antiparticle-to-particle ratios at mid-rapidity in =130 GeV Au+Au collisions

Cited by 41 publications

References 52 publications

Productions of hadrons, pentaquarksΘ+andΘ++, and di-baryon
Shao
¹
,
Xie
²
,
Wang
³

2005
Phys. Rev. C*

Productions of hadrons, pentaquarksΘ+andΘ++, and di-baryon
Shao
¹
,
Xie
²
,
Wang
³

2005
Phys. Rev. C*

Hadron production in central nucleus–nucleus collisions at chemical freeze-out

Strange particle production in 158 and 40AGeV/cPb–Pb and p-Be collisions

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Strange antiparticle-to-particle ratios at mid-rapidity in =130 GeV Au+Au collisions

Cited by 41 publications

References 52 publications

Productions of hadrons, pentaquarksΘ+andΘ*++, and di-baryonShao1, Xie2, Wang3 2005Phys. Rev. C

Productions of hadrons, pentaquarksΘ+andΘ*++, and di-baryonShao1, Xie2, Wang3 2005Phys. Rev. C

Hadron production in central nucleus–nucleus collisions at chemical freeze-out

Strange particle production in 158 and 40AGeV/cPb–Pb and p-Be collisions

Contact Info

Product

Resources

About

Productions of hadrons, pentaquarksΘ+andΘ++, and di-baryon
Shao
¹
,
Xie
²
,
Wang
³

2005
Phys. Rev. C*

Productions of hadrons, pentaquarksΘ+andΘ++, and di-baryon
Shao
¹
,
Xie
²
,
Wang
³

2005
Phys. Rev. C*