Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/241719
Type: Artigo
Title: Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au plus Au collisions at root(NN)-N-S=19.6 and 200 GeV
Author: Adamczyk, L.
Adkins, J. K.
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alekseev, I.
Alford, J.
Aparin, A.
Arkhipkin, D.
Aschenauer, E. C.
Averichev, G. S.
Banerjee, A.
Bellwied, R.
Bhasin, A.
Bhati, A. K.
Bhattarai, P.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Bouchet, J.
Brandin, A. V.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Caines, H.
S'Anchez, M. C. D.
Campbell, J. M.
Cebra, D.
Cervantes, M. C.
Chakaberia, I.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, J. H.
Chen, X.
Cheng, J.
Cherney, M.
Christie, W.
Codrington, M. J. M.
Contin, G.
Crawford, H. J.
Das, S.
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Deng, J.
Derevschikov, A. A.
di Ruzza, B.
Didenko, L.
Dilks, C.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Engelage, J.
Eppley, G.
Esha, R.
Evdokimov, O.
Eyser, O.
Fatemi, R.
Fazio, S.
Federic, P.
Fedorisin, J.
Feng
Filip, P.
Fisyak, Y.
Flores, C. E.
Fulek, L.
Gagliardi, C. A.
Garand, D.
Geurts, F.
Gibson, A.
Girard, M.
Greiner, L.
Grosnick, D.
Gunarathne, D. S.
Guo, Y.
Gupta, S.
Gupta, A.
Guryn, W.
Hamad, A.
Hamed, A.
Hague, R.
Harris, J. W.
He, L.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, H. Z.
Huang, X.
Huang, B.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jang, H.
Jiang, K.
Judd, E. G.
Kabana, S.
Kalinkin, D.
Kang, K.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Khan, Z. H.
Kikola, D. P.
Kisel, I.
Kisiel, A.
Klein, S. R.
Koetke, D. D.
Kollegger, T.
Kosarzewski, L. K.
Kotchenda, L.
Kraishan, A. F.
Kravtsov, R.
Krueger, K.
Kulakov, I.
Kumar, L.
Kycia, R. A.
Lamont, M. A. C.
Landgraf, J. M.
Landry, K. D.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Li, X.
Li, W.
Li, Z. M.
Li, Y.
Li, C.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Lomnitz, M.
Longacre, R. S.
Luo, X.
Ma, L.
Ma, R.
Ma, G. L.
Ma, Y. G.
Magdy, N.
Majka, R.
Manion, A.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
Meehan, K.
Minaev, N. G.
Mioduszewski, S.
Mohanty, B.
Mondal, M. M.
Morozov, D. A.
Mustafa, M. K.
Nandi, B. K.
Nasim, M.
Nayak, T. K.
Nigmatkulov, G.
Nogach, L. V.
Noh, S. Y.
Novak, J.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Oh, K.
Okorokov, V.
Olvitt, D. L.
Page, B. S.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Peterson, A.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Poniatowska, K.
Porter, J.
Posik, M.
Poskanzer, A. M.
Pruthi, N. K.
Putschke, J.
Qiu, H.
Quintero, A.
Ramachandran, S.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Roy, A.
Ruan, L.
Rusnak, J.
Rusnakova, O.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandacz, A.
Sandweiss, J.
Sarkar, A.
Schambach, J.
Scharenberg, R. P.
Schmah, A. M.
Schmidke, W. B.
Schmitz, N.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shanmuganathan, P. V.
Shao, M.
Sharma, M. K.
Sharma, B.
Shen, W. Q.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Sikora, R.
Simko, M.
Skoby, M. J.
Smirnov, N.
Smirnov, D.
Solanki, D.
Song, L.
Sorensen, P.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Sumbera, M.
Summa, B. J.
Sun, Y.
Sun, Z.
Sun, X. M.
Sun, X.
Surrow, B.
Svirida, D. N.
Szelezniak, M. A.
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarnowsky, T.
Tawfik, A. N.
Thomas, J. H.
Timmins, A. R.
Tlusty, D.
Tokarev, M.
Trentalange, S.
Tribble, R. E.
Tribedy, P.
Tripathy, S. K.
Trzeciak, B. A.
Tsai, O. D.
Ulrich, T.
Underwood, D. G.
Upsal, I.
Van Buren, G.
Van Nieuwenhuizen, G.
Vandenbroucke, M.
Varma, R.
Vasiliev, A. N.
Vertesi, R.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Vossen, A.
Wang, Y.
Wang, F.
Wang, H.
Wang, J. S.
Wang, G.
Webb, J. C.
Webb, G.
Wen, L.
Westfall, G. D.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, Z.
Xu, Q. H.
Xu, N.
Xu, H.
Xu, Y. F.
Yang, Y.
Yang, C.
Yang, S.
Yang, Q.
Ye, Z.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I. K.
Yu, N.
Zbroszczyk, H.
Zha, W.
Zhang, J. B.
Zhang, X. P.
Zhang, S.
Zhang, J.
Zhang, Z.
Zhang, Y.
Zhang, J. L.
Zhao, F.
Zhao, J.
Zhong, C.
Zhou, L.
Zhu, X.
Zoulkarneeva, Y.
Zyzak, M.
Abstract: The acceptance-corrected dielectron excess mass spectra, where the known hadronic sources have been subtracted from the inclusive dielectron mass spectra, are reported for the first time at mid-rapidity vertical bar Y-ee vertical bar <1 in minimum-bias Au + Au collisions at root(NN)-N-S and 200 GeV. The excess mass spectra are consistently described by a model calculation with a broadened p spectral function for Mee <1.1 GeV/c2. The integrated dielectron excess yield at root(NN)-N-S= 19.6 GeV for 0.4 < M-ee <0.75 GeV/c(2), normalized to the charged particle multiplicity at mid-rapidity, has a value similar to that in In + In collisions at root(NN)-N-S = 17.3 GeV. For root(NN)-N-S = 200 GeV, the normalized excess yield in central collisions is higher than that at root(NN)-N-S = 17.3 GeV and increases from peripheral to central collisions. These measurements indicate that the lifetime of the hot, dense medium created in central Au + Au collisions at root(NN)-N-S = 200 GeV is longer than those in peripheral collisions and at lower energies. (C) 2015 The Authors. Published by Elsevier B.V.
The acceptance-corrected dielectron excess mass spectra, where the known hadronic sources have been subtracted from the inclusive dielectron mass spectra, are reported for the first time at mid-rapidity vertical bar Y-ee vertical bar <1 in minimum-bias Au + Au collisions at root(NN)-N-S and 200 GeV. The excess mass spectra are consistently described by a model calculation with a broadened p spectral function for Mee <1.1 GeV/c2. The integrated dielectron excess yield at root(NN)-N-S= 19.6 GeV for 0.4 < M-ee <0.75 GeV/c(2), normalized to the charged particle multiplicity at mid-rapidity, has a value similar to that in In + In collisions at root(NN)-N-S = 17.3 GeV. For root(NN)-N-S = 200 GeV, the normalized excess yield in central collisions is higher than that at root(NN)-N-S = 17.3 GeV and increases from peripheral to central collisions. These measurements indicate that the lifetime of the hot, dense medium created in central Au + Au collisions at root(NN)-N-S = 200 GeV is longer than those in peripheral collisions and at lower energies.
Subject: Colisões entre íons pesados
Cromodinâmica quântica
Interações próton-próton
Country: Holanda
Editor: Elsevier
Citation: Energy Dependence Of Acceptance-corrected Dielectron Excess Mass Spectrum At Mid-rapidity In Au Plus Au Collisions At Root(nn)-n-s=19.6 And 200 Gev. Elsevier Science Bv, v. 750, p. 64-71 Nov-2015.
Rights: aberto
Identifier DOI: 10.1016/j.physletb.2015.08.044
Address: https://www.sciencedirect.com/science/article/pii/S0370269315006450
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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