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Higher Moments of Net-proton Multiplicity Distributions at RHIC

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arxiv 1004.4959 v2 pith:AS7YTRR6 submitted 2010-04-28 nucl-ex hep-exhep-lathep-phnucl-th

Higher Moments of Net-proton Multiplicity Distributions at RHIC

M. M. Aggarwal , Z. Ahammed , A. V. Alakhverdyants , I. Alekseev , J. Alford , B. D. Anderson , D. Arkhipkin , G. S. Averichev
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J. Balewski L. S. Barnby S. Baumgart D. R. Beavis R. Bellwied M. J. Betancourt R. R. Betts A. Bhasin A. K. Bhati H. Bichsel J. Bielcik J. Bielcikova B. Biritz L. C. Bland 3 B. E. Bonner J. Bouchet E. Braidot A. V. Brandin A. Bridgeman E. Bruna S. Bueltmann I. Bunzarov T. P. Burton X. Z. Cai H. Caines M. Calder\'on de la Barca S\'anchez O. Catu D. Cebra R. Cendejas M. C. Cervantes Z. Chajecki P. Chaloupka S. Chattopadhyay H. F. Chen J. H. Chen J.Y. Chen J. Cheng M. Cherney A. Chikanian K. E. Choi W. Christie P. Chung R. F. Clarke M. J. M. Codrington R. Corliss J. G. Cramer H. J. Crawford D. Das S. Dash A. Davila Leyva L. C. De Silva R. R. Debbe T. G. Dedovich A. A. Derevschikov R. Derradi de Souza L. Didenko P. Djawotho S. M. Dogra X. Dong J. L. Drachenberg J. E. Draper J. C. Dunlop M. R. Dutta Mazumdar L. G. Efimov E. Elhalhuli M. Elnimr J. Engelage G. Eppley B. Erazmus M. Estienne L. Eun O. Evdokimov P. Fachini R. Fatemi J. Fedorisin R. G. Fersch P. Filip E. Finch V. Fine Y. Fisyak C. A. Gagliardi D. R. Gangadharan M. S. Ganti E. J. Garcia-Solis A. Geromitsos F. Geurts V. Ghazikhanian P. Ghosh Y. N. Gorbunov A. Gordon O. Grebenyuk D. Grosnick S. M. Guertin A. Gupta N. Gupta W. Guryn B. Haag A. Hamed L-X. Han J. W. Harris J. P. Hays-Wehle M. Heinz S. Heppelmann A. Hirsch E. Hjort A. M. Hoffman G. W. Hoffmann D. J. Hofman B. Huang H. Z. Huang T. J. Humanic L. Huo G. Igo P. Jacobs W. W. Jacobs C. Jena F. Jin C. L. Jones P. G. Jones J. Joseph E. G. Judd S. Kabana K. Kajimoto K. Kang J. Kapitan K. Kauder D. Keane A. Kechechyan D. Kettler D. P. Kikola J. Kiryluk A. Kisiel S. R. Klein A. G. Knospe A. Kocoloski D. D. Koetke T. Kollegger J. Konzer I. Koralt L. Koroleva W. Korsch L. Kotchenda V. Kouchpil P. Kravtsov K. Krueger M. Krus L. Kumar P. Kurnadi M. A. C. Lamont J. M. Landgraf S. LaPointe J. Lauret A. Lebedev R. Lednicky C-H. Lee J. H. Lee W. Leight M. J. LeVine C. Li L. Li N. Li W. Li X. Li Y. Li Z. M. Li G. Lin S. J. Lindenbaum M. A. Lisa F. Liu H. Liu J. Liu T. Ljubicic W. J. Llope R. S. Longacre W. A. Love Y. Lu E. V. Lukashov X. Luo G. L.Ma Y. G. Ma D. P. Mahapatra R. Majka O. I. Mall L. K. Mangotra R. Manweiler S. Margetis C. Markert H. Masui H. S. Matis Yu. A. Matulenko D. McDonald T. S. McShane A. Meschanin R. Milner N. G. Minaev S. Mioduszewski A. Mischke M. K. Mitrovski B. Mohanty M. M. Mondal. B. Morozov D. A. Morozov M. G. Munhoz B. K. Nandi C. Nattrass T. K. Nayak J. M. Nelson P. K. Netrakanti M. J. Ng L. V. Nogach S. B. Nurushev G. Odyniec A. Ogawa V. Okorokov E. W. Oldag D. Olson M. Pachr B. S. Page S. K. Pal Y. Pandit Y. Panebratsev T. Pawlak T. Peitzmann V. Perevoztchikov C. Perkins W. Peryt S. C. Phatak P. Pile M. Planinic M. A. Ploskon J. Pluta D. Plyku N. Poljak A. M. Poskanzer B. V. K. S. Potukuchi C. B. Powell D. Prindle C. Pruneau N. K. Pruthi P. R. Pujahari J. Putschke H. Qiu R. Raniwala S. Raniwala R. L. Ray R. Redwine R. Reed H. G. Ritter J. B. Roberts O. V. Rogachevsky J. L. Romero A. Rose C. Roy L. Ruan R. Sahoo S. Sakai I. Sakrejda T. Sakuma S. Salur J. Sandweiss E. Sangaline J. Schambach R. P. Scharenberg N. Schmitz T. R. Schuster J. Seele J. Seger I. Selyuzhenkov P. Seyboth E. Shahaliev M. Shao M. Sharma S. S. Shi E. P. Sichtermann F. Simon R. N. Singaraju M. J. Skoby N. Smirnov P. Sorensen J. Sowinski H. M. Spinka B. Srivastava T. D. S. Stanislaus D. Staszak J. R. Stevens R. Stock M. Strikhanov B. Stringfellow A. A. P. Suaide M. C. Suarez N. L. Subba M. Sumbera X. M. Sun Y. Sun Z. Sun B. Surrow D. N. Svirida T. J. M. Symons A. Szanto De Toledo J. Takahashi A. H. Tang Z. Tang L. H. Tarini T. Tarnowsky D. Thein J. H. Thomas J. Tian A. R. Timmins S. Timoshenko D. Tlusty M. Tokarev V. N. Tram S. Trentalange R. E. Tribble O. D. Tsai J. Ulery T. Ullrich D. G. Underwood G. Van Buren M. van Leeuwen G. van Nieuwenhuizen J. A. Vanfossen Jr. R. Varma G. M. S. Vasconcelos A. N. Vasiliev F. Videbaek Y. P. Viyogi S. Vokal S. A. Voloshin M. Wada M. Walker F. Wang G. Wang H. Wang J. S. Wang Q. Wang X. L. Wang Y. Wang G. Webb J. C. Webb G. D. Westfall C. Whitten Jr. H. Wieman S. W. Wissink R. Witt Y. F. Wu W. Xie H. Xu N. Xu Q. H. Xu W. Xu Y. Xu Z. Xu L. Xue Y. Yang P. Yepes K. Yip I-K. Yoo Q. Yue M. Zawisza H. Zbroszczyk W. Zhan J. B. Zhang S. Zhang W. M. Zhang X. P. Zhang Y. Zhang Z. P. Zhang J. Zhao C. Zhong J. Zhou W. Zhou X. Zhu Y. H. Zhu R. Zoulkarneev Y. Zoulkarneeva
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classification nucl-ex hep-exhep-lathep-phnucl-th
keywords sigmakappameasurementsbaryoncriticaldistributionsmultiplicitynet-proton
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We report the first measurements of the kurtosis (\kappa), skewness (S) and variance (\sigma^2) of net-proton multiplicity (N_p - N_pbar) distributions at midrapidity for Au+Au collisions at \sqrt(s_NN) = 19.6, 62.4, and 200 GeV corresponding to baryon chemical potentials (\mu_B) between 200 - 20 MeV. Our measurements of the products \kappa \sigma^2 and S \sigma, which can be related to theoretical calculations sensitive to baryon number susceptibilities and long range correlations, are constant as functions of collision centrality. We compare these products with results from lattice QCD and various models without a critical point and study the \sqrt(s_NN) dependence of \kappa \sigma^2. From the measurements at the three beam energies, we find no evidence for a critical point in the QCD phase diagram for \mu_B below 200 MeV.

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