Abstract
The measurement of two-particle correlations of direct photons in central 208Pb + 208Pb collisions at 158A GeV was performed. The interferometry provided to explore the space-time dimensions of the emitting source created in elementary particle or heavy ion collisions. It was observed that the yield of soft direct photons, KT<300 MeV/c was extracted from the correlation strength and compared to theoretical calculations. The measured yields attributed the dominant contribution in the pT region to the hadronic phase.
Original language | English (US) |
---|---|
Article number | 022301 |
Pages (from-to) | 022301-1-022301-5 |
Journal | Physical Review Letters |
Volume | 93 |
Issue number | 2 |
DOIs | |
State | Published - Jul 9 2004 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Interferometry of direct photons in central 208Pb + 208Pb collisions at 158A GeV. / Aggarwal, M. M.; Ahammed, Z.; Angelis, A. L S; Antonenko, V.; Arefiev, V.; Astakhov, V.; Avdeitchikov, V.; Awes, T. C.; Baba, P. V K S; Badyal, S. K.; Bathe, S.; Batiounia, B.; Bernier, T.; Bhalla, K. B.; Bhatia, V. S.; Blume, C.; Bucher, D.; Büsching, H.; Carlén, L.; Chattopadhyay, S.; Decowski, M. P.; Delagrange, H.; Donni, P.; Dutta Majumdar, M. R.; El Chenawi, K.; Dubey, A. K.; Enosawa, K.; Fokin, S.; Frolov, V.; Ganti, M. S.; Garpman, S.; Gavrishchuk, O.; Geurts, F. J M; Ghosh, T. K.; Glasow, R.; Guskov, B.; Gustafsson, H. Å; Gutbrod, H. H.; Hrivnacova, I.; Ippolitov, M.; Kalechofsky, H.; Karadjev, K.; Karpio, K.; Kolb, B. W.; Kosarev, I.; Koutcheryaev, I.; Kugler, A.; Kulinich, P.; Kurata, M.; Lebedev, A.; Löhner, H.; Luquin, L.; Mahapatra, D. P.; Manko, V.; Martin, M.; Martínez, G.; Maximov, A.; Miake, Y.; Mishra, G. C.; Mohanty, B.; Mora, M. J.; Morrison, D.; Moukhanova, T.; Mukhopadhyay, D. S.; Naef, H.; Nandi, B. K.; Nayak, S. K.; Nayak, T. K.; Nianine, A.; Nikitine, V.; Nikolaev, S.; Nilsson, P.; Nishimura, S.; Nomokonov, P.; Nystrand, J.; Oskarsson, A.; Otterlund, I.; Peitzmann, T.; Peressounko, D.; Petracek, V.; Phatak, S. C.; Pinganaud, W.; Plasil, F.; Purschke, M. L.; Rak, J.; Raniwala, R.; Raniwala, S.; Rao, N. K.; Retiere, F.; Reygers, K.; Roland, G.; Rosselet, L.; Roufanov, I.; Roy, C.; Rubio, J. M.; Sambyal, S. S.; Santo, R.; Sato, S.; Schlagheck, H.; Schmidt, H. R.; Schutz, Y.; Shabratova, G.; Shah, T. H.; Sibiriak, I.; Siemiarczuk, T.; Silvermyr, D.; Sinha, B. C.; Slavine, N.; Söderström, K.; Sood, G.; Sørensen, S. P.; Stankus, P.; Stefanek, G.; Steinberg, P.; Stenlund, E.; Sumbera, M.; Svensson, T.; Tsvetkov, A.; Tykarski, L.; Pijll, E. C V D; Eijndhoven, N. V.; Nieuwenhuizen, G. J V; Vinogradov, A.; Viyogi, Y. P.; Vodopianov, A.; Vörös, S.; Wyslouch, B.; Young, G. R.
In: Physical Review Letters, Vol. 93, No. 2, 022301, 09.07.2004, p. 022301-1-022301-5.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Interferometry of direct photons in central 208Pb + 208Pb collisions at 158A GeV
AU - Aggarwal, M. M.
AU - Ahammed, Z.
AU - Angelis, A. L S
AU - Antonenko, V.
AU - Arefiev, V.
AU - Astakhov, V.
AU - Avdeitchikov, V.
AU - Awes, T. C.
AU - Baba, P. V K S
AU - Badyal, S. K.
AU - Bathe, S.
AU - Batiounia, B.
AU - Bernier, T.
AU - Bhalla, K. B.
AU - Bhatia, V. S.
AU - Blume, C.
AU - Bucher, D.
AU - Büsching, H.
AU - Carlén, L.
AU - Chattopadhyay, S.
AU - Decowski, M. P.
AU - Delagrange, H.
AU - Donni, P.
AU - Dutta Majumdar, M. R.
AU - El Chenawi, K.
AU - Dubey, A. K.
AU - Enosawa, K.
AU - Fokin, S.
AU - Frolov, V.
AU - Ganti, M. S.
AU - Garpman, S.
AU - Gavrishchuk, O.
AU - Geurts, F. J M
AU - Ghosh, T. K.
AU - Glasow, R.
AU - Guskov, B.
AU - Gustafsson, H. Å
AU - Gutbrod, H. H.
AU - Hrivnacova, I.
AU - Ippolitov, M.
AU - Kalechofsky, H.
AU - Karadjev, K.
AU - Karpio, K.
AU - Kolb, B. W.
AU - Kosarev, I.
AU - Koutcheryaev, I.
AU - Kugler, A.
AU - Kulinich, P.
AU - Kurata, M.
AU - Lebedev, A.
AU - Löhner, H.
AU - Luquin, L.
AU - Mahapatra, D. P.
AU - Manko, V.
AU - Martin, M.
AU - Martínez, G.
AU - Maximov, A.
AU - Miake, Y.
AU - Mishra, G. C.
AU - Mohanty, B.
AU - Mora, M. J.
AU - Morrison, D.
AU - Moukhanova, T.
AU - Mukhopadhyay, D. S.
AU - Naef, H.
AU - Nandi, B. K.
AU - Nayak, S. K.
AU - Nayak, T. K.
AU - Nianine, A.
AU - Nikitine, V.
AU - Nikolaev, S.
AU - Nilsson, P.
AU - Nishimura, S.
AU - Nomokonov, P.
AU - Nystrand, J.
AU - Oskarsson, A.
AU - Otterlund, I.
AU - Peitzmann, T.
AU - Peressounko, D.
AU - Petracek, V.
AU - Phatak, S. C.
AU - Pinganaud, W.
AU - Plasil, F.
AU - Purschke, M. L.
AU - Rak, J.
AU - Raniwala, R.
AU - Raniwala, S.
AU - Rao, N. K.
AU - Retiere, F.
AU - Reygers, K.
AU - Roland, G.
AU - Rosselet, L.
AU - Roufanov, I.
AU - Roy, C.
AU - Rubio, J. M.
AU - Sambyal, S. S.
AU - Santo, R.
AU - Sato, S.
AU - Schlagheck, H.
AU - Schmidt, H. R.
AU - Schutz, Y.
AU - Shabratova, G.
AU - Shah, T. H.
AU - Sibiriak, I.
AU - Siemiarczuk, T.
AU - Silvermyr, D.
AU - Sinha, B. C.
AU - Slavine, N.
AU - Söderström, K.
AU - Sood, G.
AU - Sørensen, S. P.
AU - Stankus, P.
AU - Stefanek, G.
AU - Steinberg, P.
AU - Stenlund, E.
AU - Sumbera, M.
AU - Svensson, T.
AU - Tsvetkov, A.
AU - Tykarski, L.
AU - Pijll, E. C V D
AU - Eijndhoven, N. V.
AU - Nieuwenhuizen, G. J V
AU - Vinogradov, A.
AU - Viyogi, Y. P.
AU - Vodopianov, A.
AU - Vörös, S.
AU - Wyslouch, B.
AU - Young, G. R.
N1 - Funding Information: We wish to acknowledge useful discussions with ?>R. Rapp, C. Gale, and D. Srivastava. This work was supported jointly by Russian NS-1885.2003.2, the German BMBF and DFG, the U.S. DOE, the Swedish NFR and FRN, the Dutch Stichting FOM, the Polish KBN under Contract No. 621/E-78/SPUB-M/CERN/?>P-03/DZ211/, the Grant Agency of the Czech Republic under Contract No. 202/95/0217, the Department of Atomic Energy, the Department of Science and Technology, the Council of Scientific and Industrial Research and the University Grants Commission of the Government of India, the Indo-FRG Exchange Program, the PPE division of CERN, the Swiss National Fund, ?>the INTAS under Contract No. INTAS-97-0158, ORISE, Grant-in-Aid for Scientific Research (Specially Promoted Research & International Scientific Research) of the Ministry of Education, Science and Culture, the University of Tsukuba Special Research Projects, and the JSPS. ORNL is managed by UT-Battelle, LLC, for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. The MIT group has been supported by the U.S. Department of Energy under the cooperative agreement DE-FC02-94ER40818.
PY - 2004/7/9
Y1 - 2004/7/9
N2 - The measurement of two-particle correlations of direct photons in central 208Pb + 208Pb collisions at 158A GeV was performed. The interferometry provided to explore the space-time dimensions of the emitting source created in elementary particle or heavy ion collisions. It was observed that the yield of soft direct photons, KT<300 MeV/c was extracted from the correlation strength and compared to theoretical calculations. The measured yields attributed the dominant contribution in the pT region to the hadronic phase.
AB - The measurement of two-particle correlations of direct photons in central 208Pb + 208Pb collisions at 158A GeV was performed. The interferometry provided to explore the space-time dimensions of the emitting source created in elementary particle or heavy ion collisions. It was observed that the yield of soft direct photons, KT<300 MeV/c was extracted from the correlation strength and compared to theoretical calculations. The measured yields attributed the dominant contribution in the pT region to the hadronic phase.
UR - http://www.scopus.com/inward/record.url?scp=80051548999&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80051548999&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.93.022301
DO - 10.1103/PhysRevLett.93.022301
M3 - Article
C2 - 15323905
AN - SCOPUS:80051548999
VL - 93
SP - 022301-1-022301-5
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 2
M1 - 022301
ER -