Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/241512
Type: Artigo
Title: K*(892)(0) and Phi(1020) production in Pb-pb collisions at root S(nn)=2.76 Tev
Author: Abdelwahab, N. M.
Adamczyk, L.
Adkins, J. K.
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alekseev, I.
Alford, J.
Anson, C. D.
Aparin, A.
Arkhipkin, D.
Aschenauer, E. C.
Averichev, G. S.
Banerjee, A.
Beavis, D. R.
Bellwied, R.
Bhasin, A.
Bhati, A. K.
Bhattarai, P.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Borowski, W.
Bouchet, J.
Brandin, A. V.
Brovko, S. G.
Bultmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Caines, H.
Sanchez, M. C. D.
Campbell, J. M.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Codrington, M. J. M.
Contin, G.
Cramer, J. G.
Crawford, H. J.
Cui, X.
Das, S.
Leyva, A. D.
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Deng, J.
Derevschikov, A. A.
de Souza, R. D.
di Ruzza, B.
Didenko, L.
Dilks, C.
Ding, F.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Engelage, J.
Engle, K. S.
Eppley, G.
Eun, L.
Evdokimov, O.
Eyser, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Filip, P.
Fisyak, Y.
Flores, C. E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Girard, M.
Gliske, S.
Greiner, L.
Grosnick, D.
Gunarathne, D. S.
Guo, Y.
Gupta, A.
Gupta, S.
Guryn, W.
Haag, B.
Hamed, A.
Han, L. X.
Haque, R.
Harris, J. W.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huang, X.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jang, H.
Judd, E. G.
Kabana, S.
Kalinkin, D.
Kang, K.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Khan, Z. H.
Kikola, D. P.
Kisel, I.
Kisiel, A.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Kosarzewski, L. K.
Kotchenda, L.
Kraishan, A. F.
Kravtsov, P.
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, C.
Li, W.
Li, X.
Li, Y.
Li, Z. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Lomnitz, M.
Longacre, R. S.
Luo, X.
Ma, G. L.
Ma, Y. G.
Mahapatra, D. P.
Majka, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Minaev, N. G.
Mioduszewski, S.
Mohanty, B.
Mondal, M. M.
Morozov, D. A.
Mustafa, M. K.
Nandi, B. K.
Nasim, M.
Nayak, T. K.
Nelson, J. M.
Nigmatkulov, G.
Nogach, L. V.
Noh, S. Y.
Novak, J.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Olvitt, D. L.
Page, B. S.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Poniatowska, K.
Porter, J.
Poskanzer, A. M.
Pruthi, N. K.
Przybycien, M.
Putschke, J.
Qiu, H.
Quintero, A.
Ramachandran, S.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Riley, C. K.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Ross, J. F.
Roy, A.
Ruan, L.
Rusnak, J.
Rusnakova, O.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandacz, A.
Sandweiss, J.
Sangaline, E.
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, B.
Shen, W. Q.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Simko, M.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Sumbera, M.
Sun, X.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szelezniak, M. A.
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarnowsky, T.
Thomas, J. H.
Timmins, A. R.
Tlusty, D.
Tokarev, M.
Trentalange, S.
Tribble, R. E.
Tribedy, P.
Trzeciak, B. A.
Tsai, O. D.
Turnau, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Nieuwenhuizen, G.
Vandenbroucke, M.
Vanfossen, J. A.
Varma, R.
Vasconcelos, G. M. S.
Vasiliev, A. N.
Vertesi, R.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Wieman, H.
Wissink, S. W.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, H.
Xu, J.
Xu, N.
Xu, Q. H.
Xu, Y.
Xu, Z.
Yan, W.
Yang, C.
Yang, Y.
Ye, Z.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I. K.
Yu, N.
Zbroszczyk, H.
Zha, W.
Zhang, J. B.
Zhang, J. L.
Zhang, S.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, F.
Zhao, J.
Zhong, C.
Zhu, X.
Zhu, Y. H.
Zoulkarneeva, Y.
Zyzak, M.
Abstract: The yields of the K*(892)(0) and phi(1020) resonances are measured in Pb-Pb collisions at root s(NN) = 2.76 TeV through their hadronic decays using the ALICE detector. The measurements are performed in multiple centrality intervals at mid-rapidity (vertical bar y vertical bar < 0.5) in the transverse-momentum ranges 0.3 < p(T) < 5 GeV/c for the K*(892)(0) and 0.5 < p(T) < 5 GeV/c for the phi(1020). The yields of K*(892)(0) are suppressed in central Pb-Pb collisions with respect to pp and peripheral Pb-Pb collisions (perhaps due to rescattering of its decay products in the hadronic medium), while the longer-lived phi(1020) meson is not suppressed. These particles are also used as probes to study the mechanisms of particle production. The shape of the pT distribution of the phi(1020) meson, but not its yield, is reproduced fairly well by hydrodynamic models for central Pb-Pb collisions. In central Pb-Pb collisions at low and intermediate p(T), the p/phi(1020) ratio is flat in p(T), while the p/pi and phi(1020)/pi ratios show a pronounced increase and have similar shapes to each other. These results indicate that the shapes of the p(T) distributions of these particles in central Pb-Pb collisions are determined predominantly by the particle masses and radial flow. Finally, phi(1020) production in Pb-Pb collisions is enhanced, with respect to the yield in pp collisions and the yield of charged pions, by an amount similar to the Lambda and Xi.
The yields of the K*(892)(0) and phi(1020) resonances are measured in Pb-Pb collisions at root s(NN) = 2.76 TeV through their hadronic decays using the ALICE detector. The measurements are performed in multiple centrality intervals at mid-rapidity (vertical bar y vertical bar < 0.5) in the transverse-momentum ranges 0.3 < p(T) < 5 GeV/c for the K*(892)(0) and 0.5 < p(T) < 5 GeV/c for the phi(1020). The yields of K*(892)(0) are suppressed in central Pb-Pb collisions with respect to pp and peripheral Pb-Pb collisions (perhaps due to rescattering of its decay products in the hadronic medium), while the longer-lived phi(1020) meson is not suppressed. These particles are also used as probes to study the mechanisms of particle production. The shape of the pT distribution of the phi(1020) meson, but not its yield, is reproduced fairly well by hydrodynamic models for central Pb-Pb collisions. In central Pb-Pb collisions at low and intermediate p(T), the p/phi(1020) ratio is flat in p(T), while the p/pi and phi(1020)/pi ratios show a pronounced increase and have similar shapes to each other. These results indicate that the shapes of the p(T) distributions of these particles in central Pb-Pb collisions are determined predominantly by the particle masses and radial flow. Finally, phi(1020) production in Pb-Pb collisions is enhanced, with respect to the yield in pp collisions and the yield of charged pions, by an amount similar to the Lambda and Xi.
Subject: Hádrons
Colisões entre íons
Cromodinâmica quântica
Country: Estados Unidos
Editor: American Physical Society
Citation: K*(892)(0) And Phi(1020) Production In Pb-pb Collisions At Root S(nn)=2.76 Tev. Amer Physical Soc, v. 91, p. FEB-2015.
Rights: aberto
Identifier DOI: 10.1103/PhysRevC.91.024609
Address: http://journals.aps.org/prc/abstract/10.1103/PhysRevC.91.024609
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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