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Titolo:
Central Pb plus Pb collisions at 158 A GeV/c studied by pi(-)pi(-) interferometry
Autore:
Aggarwal, MM; Agnihotri, A; Ahammed, Z; Angelis, ALS; Antonenko, V; Arefiev, V; Astakhov, V; Avdeitchikov, V; Awes, TC; Baba, PVKS; Badyal, SK; Barlag, C; Bathe, S; Batiounia, B; Bernier, T; Bhalla, KB; Bhatia, VS; Blume, C; Bock, R; Bohne, EM; Borocz, Z; Bucher, D; Buijs, A; Busching, H; Carlen, L; Chalyshev, V; Chattopadhyay, S; Cherbatchev, R; Chujo, T; Claussen, A; Das, AC; Decowski, MP; Delagrange, H; Djordjadze, V; Donni, P; Doubovik, I; Dutt, S; Majumdar, MRD; El Chenawi, K; Eliseev, S; Enosawa, K; Foka, P; Fokin, S; Ganti, MS; Garpman, S; Gavrishchuk, O; Geurts, FJM; Ghosh, TK; Glasow, R; Gupta, SK; Guskov, B; Gustafsson, HA; Gutbrod, HH; Higuchi, R; Hrivnacova, I; Ippolitov, M; Kalechofsky, H; Kamermans, R; Kampert, KH; Karadjev, K; Karpio, K; Kato, S; Kees, S; Klein-Bosing, C; Knoche, S; Kolb, BW; Kosarev, I; Koutcheryaev, I; Krumpel, T; Kugler, A; Kulinich, P; Kurata, M; Kurita, K; Kuzmin, N; Langbein, I; Lebedev, A; Lee, YY; Lohner, H; Luquin, L; Mahapatra, DP; Manko, V; Martin, M; Martinez, G; Maximov, A; Mgebrichvili, G; Miake, Y; Mir, MF; Mishra, GC; Miyamoto, Y; Mohanty, B; Morrison, D; Mukhopadhyay, DS; Naef, H; Nandi, BK; Nayak, SK; Nayak, TK; Neumaier, S; Nianine, A; Nikitine, V; Nikolaev, S; Nilsson, P; Nishimura, S; Nomokonov, P; Nystrand, J; Obenshain, FE; Oskarsson, A; Otterlund, I; Pachr, M; Pavliouk, S; Peitzmann, T; Petracek, V; Pinganaud, W; Plasil, F; von Poblotzki, U; Purschke, ML; Rak, J; Raniwala, R; Raniwala, S; Ramamurthy, VS; Rao, NK; Retiere, F; Reygers, K; Roland, G; Rosselet, L; Roufanov, I; Roy, C; Rubio, JM; Sako, H; Sambyal, SS; Santo, R; Sato, S; Schlagheck, H; Schmidt, HR; Schutz, Y; Shabratova, G; Shah, TH; Sibiriak, I; Siemiarczuk, T; Silvermyr, D; Sinha, BC; Slavine, N; Soderstrom, K; Solomey, N; Sorensen, SP; Stankus, P; Stefanek, G; Steinberg, P; Stenlund, E; Stuken, D; Sumbera, M; Svensson, T; Trivedi, MD; Tsvetkov, A; Tykarski, L; Urbahn, J; vander Pijll, EC; von Eijndhoven, N; von Nieuwenhuizen, GJ; Vinogradov, A; Viyogi, YP; Vodopianov, A; Voros, S; Wyslouch, B; Yagi, K; Yokota, Y; Young, GR;
Indirizzi:
Panjab Univ, Chandigarh 160014, India Panjab Univ Chandigarh India 160014 anjab Univ, Chandigarh 160014, India Univ Rajasthan, Jaipur 302004, Rajasthan, India Univ Rajasthan Jaipur Rajasthan India 302004 pur 302004, Rajasthan, India Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Calcutta 700064, W Bengal, India Bhabha Atom Res Ctr Calcutta W Bengal India 700064 00064, W Bengal, India Univ Geneva, CH-1211 Geneva 4, Switzerland Univ Geneva Geneva Switzerland 4 v Geneva, CH-1211 Geneva 4, Switzerland IV Kurchatov Atom Energy Inst, RRC, Moscow 123182, Russia IV Kurchatov Atom Energy Inst Moscow Russia 123182 Moscow 123182, Russia Joint Inst Nucl Res, Dubna 141980, Russia Joint Inst Nucl Res Dubna Russia 141980 t Nucl Res, Dubna 141980, Russia Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA Oak Ridge Natl Lab Oak Ridge TN USA 37831 tl Lab, Oak Ridge, TN 37831 USA Univ Jammu, Jammu 180001, India Univ Jammu Jammu India 180001Univ Jammu, Jammu 180001, India Univ Munster, D-48149 Munster, Germany Univ Munster Munster Germany D-48149 v Munster, D-48149 Munster, Germany Ecole Mines, SUBATECH, Nantes, France Ecole Mines Nantes FranceEcole Mines, SUBATECH, Nantes, France Gesell Schwerionenforsch GmbH, D-64220 Darmstadt, Germany Gesell Schwerionenforsch GmbH Darmstadt Germany D-64220 rmstadt, Germany Univ Utrecht, NIKHEF, NL-3508 TA Utrecht, Netherlands Univ Utrecht Utrecht Netherlands NL-3508 TA 3508 TA Utrecht, Netherlands Univ Lund, S-22100 Lund, Sweden Univ Lund Lund Sweden S-22100Univ Lund, S-22100 Lund, Sweden Inst Nucl Phys, Rez 25068, Czech Republic Inst Nucl Phys Rez Czech Republic 25068 Phys, Rez 25068, Czech Republic Univ Groningen, KVI, NL-9747 AA Groningen, Netherlands Univ Groningen Groningen Netherlands NL-9747 AA A Groningen, Netherlands Inst Nucl Studies, PL-00681 Warsaw, Poland Inst Nucl Studies Warsaw Poland PL-00681 tudies, PL-00681 Warsaw, Poland MIT, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, Cambridge, MA 02139 USA Inst Phys, Bhubaneswar 751005, Orissa, India Inst Phys Bhubaneswar OrissaIndia 751005 ubaneswar 751005, Orissa, India Univ Tennessee, Knoxville, TN 37996 USA Univ Tennessee Knoxville TN USA 37996 Tennessee, Knoxville, TN 37996 USA Univ Tsukuba, Ibaraki, Osaka 305, Japan Univ Tsukuba Ibaraki Osaka Japan 305 v Tsukuba, Ibaraki, Osaka 305, Japan
Titolo Testata:
EUROPEAN PHYSICAL JOURNAL C
fascicolo: 3, volume: 16, anno: 2000,
pagine: 445 - 451
SICI:
1434-6044(200009)16:3<445:CPPPCA>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
HEAVY-ION COLLISIONS; MULTISTEP AVALANCHE CHAMBERS; PB+PB COLLISIONS; PION INTERFEROMETRY; 2-PION CORRELATIONS; PERFORMANCE; TRACKING; READOUT; SYSTEMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Aggarwal, MM Panjab Univ, Chandigarh 160014, India Panjab Univ Chandigarh India 160014 handigarh 160014, India
Citazione:
M.M. Aggarwal et al., "Central Pb plus Pb collisions at 158 A GeV/c studied by pi(-)pi(-) interferometry", EUR PHY J C, 16(3), 2000, pp. 445-451

Abstract

Two-particle correlations have been measured for identified pi(-) from central 158 A GeV Pb+Pb collisions and fitted radii of about 7 fm in all dimensions have been obtained. A multi-dimensional study of the radii as a function of k(gamma) is presented, including a full correction for the resolution effects of the apparatus. The cross term R-out-long(2) of the standard fit in the Longitudinally CoMoving System (LCMS) and the upsilon(L) parameterof the generalised Yano-Koonin fit are compatible with 0, suggesting that the source undergoes a boost invariant expansion. The shapes of the correlation functions in Q(inv) and Q(space) = root<(Q(x)(2) + Q(y)(2) + Q(z)(2))over bar> have been analyzed in detail. They are not Gaussian but better represented by exponentials. As a consequence, fitting Gaussians to these correlation functions may produce different radii depending on the acceptance of the experimental setup used for the measurement.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 04:24:18