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Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions
A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c. A significant...
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| Lenguaje: | eng |
| Publicado: |
2000
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.85.3595 http://cds.cern.ch/record/441976 |
| _version_ | 1780895674732118016 |
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| author | Aggarwal, M.M. Agnihotri, A. 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. Barlag, C. Bathe, S. Batiounia, B. Bernier, T. Bhalla, K.B. Bhatia, V.S. Blume, C. Bock, R. Bohne, E.-M. Borocz, Z. Bucher, D. Buijs, A. Busching, H. Carlen, L. Chalyshev, V. Chattopadhyay, S. Cherbatchev, R. Chujo, T. Claussen, A. Das, A.C. Decowski, M.P. Delagrange, H. Djordjadze, V. Donni, P. Doubovik, I. Dutt, S. Dutta Majumdar, M.R. El Chenawi, K. Eliseev, S. Enosawa, K. Foka, P. Fokin, S. Ganti, M.S. Garpman, S. Gavrishchuk, O. Geurts, F.J.M. Ghosh, T.K. Glasow, R. Gupta, S.K. Guskov, B. Gustafsson, H.A. Gutbrod, H.H. Higuchi, R. Hrivnacova, I. Ippolitov, M. Kalechofsky, H. Kamermans, R. Kampert, K.-H. Karadjev, K. Karpio, K. Kato, S. Kees, S. Klein-Bosing, C. Knoche, S. Kolb, B.W. Kosarev, I. Koutcheryaev, I. Krumpel, T. Kugler, A. Kulinich, P. Kurata, M. Kurita, K. Kuzmin, N. Langbein, I. Lebedev, A. Lee, Y.Y. Lohner, H. Luquin, L. Mahapatra, D.P. Manko, V. Martin, M. Martinez, G. Maximov, A. Mgebrichvili, G. Miake, Y. Mir, Md.F. Mishra, G.C. Miyamoto, Y. Mohanty, B. Mora, M.-J. Morrison, D. Mukhopadhyay, D.S. Naef, H. Nandi, B.K. Nayak, S.K. Nayak, T.K. Neumaier, S. Nianine, A. Nikitine, V. Nikolaev, S. Nilsson, P. Nishimura, S. Nomokonov, P. Nystrand, J. Obenshain, F.E. Oskarsson, A. Otterlund, I. Pachr, M. Pavliouk, S. Peitzmann, T. Petracek, V. Pinganaud, W. Plasil, F. Poblotzki, U.v. Purschke, M.L. Rak, J. Raniwala, R. Raniwala, S. Ramamurthy, V.S. Rao, N.K. Retiere, F. Reygers, K. Roland, G. Rosselet, L. Roufanov, I. Roy, C. Rubio, J.M. Sako, H. 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. Soderstrom, K. Solomey, N. Sood, G. Sorensen, S.P. Stankus, P. Stefanek, G. Steinberg, P. Stenlund, E. Stuken, D. Sumbera, M. Svensson, T. Trivedi, M.D. Tsvetkov, A. Tykarski, L. Urbahn, J. Pijll, E.C.v.d. Eijndhoven, N.v. Nieuwenhuizen, G.J.v. Vinogradov, A. Viyogi, Y.P. Vodopianov, A. Voros, S. Wyslouch, B. Yagi, K. Yokota, Y. Young, G.R. |
| author_facet | Aggarwal, M.M. Agnihotri, A. 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. Barlag, C. Bathe, S. Batiounia, B. Bernier, T. Bhalla, K.B. Bhatia, V.S. Blume, C. Bock, R. Bohne, E.-M. Borocz, Z. Bucher, D. Buijs, A. Busching, H. Carlen, L. Chalyshev, V. Chattopadhyay, S. Cherbatchev, R. Chujo, T. Claussen, A. Das, A.C. Decowski, M.P. Delagrange, H. Djordjadze, V. Donni, P. Doubovik, I. Dutt, S. Dutta Majumdar, M.R. El Chenawi, K. Eliseev, S. Enosawa, K. Foka, P. Fokin, S. Ganti, M.S. Garpman, S. Gavrishchuk, O. Geurts, F.J.M. Ghosh, T.K. Glasow, R. Gupta, S.K. Guskov, B. Gustafsson, H.A. Gutbrod, H.H. Higuchi, R. Hrivnacova, I. Ippolitov, M. Kalechofsky, H. Kamermans, R. Kampert, K.-H. Karadjev, K. Karpio, K. Kato, S. Kees, S. Klein-Bosing, C. Knoche, S. Kolb, B.W. Kosarev, I. Koutcheryaev, I. Krumpel, T. Kugler, A. Kulinich, P. Kurata, M. Kurita, K. Kuzmin, N. Langbein, I. Lebedev, A. Lee, Y.Y. Lohner, H. Luquin, L. Mahapatra, D.P. Manko, V. Martin, M. Martinez, G. Maximov, A. Mgebrichvili, G. Miake, Y. Mir, Md.F. Mishra, G.C. Miyamoto, Y. Mohanty, B. Mora, M.-J. Morrison, D. Mukhopadhyay, D.S. Naef, H. Nandi, B.K. Nayak, S.K. Nayak, T.K. Neumaier, S. Nianine, A. Nikitine, V. Nikolaev, S. Nilsson, P. Nishimura, S. Nomokonov, P. Nystrand, J. Obenshain, F.E. Oskarsson, A. Otterlund, I. Pachr, M. Pavliouk, S. Peitzmann, T. Petracek, V. Pinganaud, W. Plasil, F. Poblotzki, U.v. Purschke, M.L. Rak, J. Raniwala, R. Raniwala, S. Ramamurthy, V.S. Rao, N.K. Retiere, F. Reygers, K. Roland, G. Rosselet, L. Roufanov, I. Roy, C. Rubio, J.M. Sako, H. 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. Soderstrom, K. Solomey, N. Sood, G. Sorensen, S.P. Stankus, P. Stefanek, G. Steinberg, P. Stenlund, E. Stuken, D. Sumbera, M. Svensson, T. Trivedi, M.D. Tsvetkov, A. Tykarski, L. Urbahn, J. Pijll, E.C.v.d. Eijndhoven, N.v. Nieuwenhuizen, G.J.v. Vinogradov, A. Viyogi, Y.P. Vodopianov, A. Voros, S. Wyslouch, B. Yagi, K. Yokota, Y. Young, G.R. |
| author_sort | Aggarwal, M.M. |
| collection | CERN |
| description | A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p_T > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation. |
| id | cern-441976 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2000 |
| record_format | invenio |
| spelling | cern-4419762022-02-05T03:26:49Zdoi:10.1103/PhysRevLett.85.3595http://cds.cern.ch/record/441976engAggarwal, M.M.Agnihotri, A.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.Barlag, C.Bathe, S.Batiounia, B.Bernier, T.Bhalla, K.B.Bhatia, V.S.Blume, C.Bock, R.Bohne, E.-M.Borocz, Z.Bucher, D.Buijs, A.Busching, H.Carlen, L.Chalyshev, V.Chattopadhyay, S.Cherbatchev, R.Chujo, T.Claussen, A.Das, A.C.Decowski, M.P.Delagrange, H.Djordjadze, V.Donni, P.Doubovik, I.Dutt, S.Dutta Majumdar, M.R.El Chenawi, K.Eliseev, S.Enosawa, K.Foka, P.Fokin, S.Ganti, M.S.Garpman, S.Gavrishchuk, O.Geurts, F.J.M.Ghosh, T.K.Glasow, R.Gupta, S.K.Guskov, B.Gustafsson, H.A.Gutbrod, H.H.Higuchi, R.Hrivnacova, I.Ippolitov, M.Kalechofsky, H.Kamermans, R.Kampert, K.-H.Karadjev, K.Karpio, K.Kato, S.Kees, S.Klein-Bosing, C.Knoche, S.Kolb, B.W.Kosarev, I.Koutcheryaev, I.Krumpel, T.Kugler, A.Kulinich, P.Kurata, M.Kurita, K.Kuzmin, N.Langbein, I.Lebedev, A.Lee, Y.Y.Lohner, H.Luquin, L.Mahapatra, D.P.Manko, V.Martin, M.Martinez, G.Maximov, A.Mgebrichvili, G.Miake, Y.Mir, Md.F.Mishra, G.C.Miyamoto, Y.Mohanty, B.Mora, M.-J.Morrison, D.Mukhopadhyay, D.S.Naef, H.Nandi, B.K.Nayak, S.K.Nayak, T.K.Neumaier, S.Nianine, A.Nikitine, V.Nikolaev, S.Nilsson, P.Nishimura, S.Nomokonov, P.Nystrand, J.Obenshain, F.E.Oskarsson, A.Otterlund, I.Pachr, M.Pavliouk, S.Peitzmann, T.Petracek, V.Pinganaud, W.Plasil, F.Poblotzki, U.v.Purschke, M.L.Rak, J.Raniwala, R.Raniwala, S.Ramamurthy, V.S.Rao, N.K.Retiere, F.Reygers, K.Roland, G.Rosselet, L.Roufanov, I.Roy, C.Rubio, J.M.Sako, H.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.Soderstrom, K.Solomey, N.Sood, G.Sorensen, S.P.Stankus, P.Stefanek, G.Steinberg, P.Stenlund, E.Stuken, D.Sumbera, M.Svensson, T.Trivedi, M.D.Tsvetkov, A.Tykarski, L.Urbahn, J.Pijll, E.C.v.d.Eijndhoven, N.v.Nieuwenhuizen, G.J.v.Vinogradov, A.Viyogi, Y.P.Vodopianov, A.Voros, S.Wyslouch, B.Yagi, K.Yokota, Y.Young, G.R.Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ CollisionsNuclear Physics - ExperimentA measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p_T > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation.A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p_T > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation.nucl-ex/0006008oai:cds.cern.ch:4419762000 |
| spellingShingle | Nuclear Physics - Experiment Aggarwal, M.M. Agnihotri, A. 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. Barlag, C. Bathe, S. Batiounia, B. Bernier, T. Bhalla, K.B. Bhatia, V.S. Blume, C. Bock, R. Bohne, E.-M. Borocz, Z. Bucher, D. Buijs, A. Busching, H. Carlen, L. Chalyshev, V. Chattopadhyay, S. Cherbatchev, R. Chujo, T. Claussen, A. Das, A.C. Decowski, M.P. Delagrange, H. Djordjadze, V. Donni, P. Doubovik, I. Dutt, S. Dutta Majumdar, M.R. El Chenawi, K. Eliseev, S. Enosawa, K. Foka, P. Fokin, S. Ganti, M.S. Garpman, S. Gavrishchuk, O. Geurts, F.J.M. Ghosh, T.K. Glasow, R. Gupta, S.K. Guskov, B. Gustafsson, H.A. Gutbrod, H.H. Higuchi, R. Hrivnacova, I. Ippolitov, M. Kalechofsky, H. Kamermans, R. Kampert, K.-H. Karadjev, K. Karpio, K. Kato, S. Kees, S. Klein-Bosing, C. Knoche, S. Kolb, B.W. Kosarev, I. Koutcheryaev, I. Krumpel, T. Kugler, A. Kulinich, P. Kurata, M. Kurita, K. Kuzmin, N. Langbein, I. Lebedev, A. Lee, Y.Y. Lohner, H. Luquin, L. Mahapatra, D.P. Manko, V. Martin, M. Martinez, G. Maximov, A. Mgebrichvili, G. Miake, Y. Mir, Md.F. Mishra, G.C. Miyamoto, Y. Mohanty, B. Mora, M.-J. Morrison, D. Mukhopadhyay, D.S. Naef, H. Nandi, B.K. Nayak, S.K. Nayak, T.K. Neumaier, S. Nianine, A. Nikitine, V. Nikolaev, S. Nilsson, P. Nishimura, S. Nomokonov, P. Nystrand, J. Obenshain, F.E. Oskarsson, A. Otterlund, I. Pachr, M. Pavliouk, S. Peitzmann, T. Petracek, V. Pinganaud, W. Plasil, F. Poblotzki, U.v. Purschke, M.L. Rak, J. Raniwala, R. Raniwala, S. Ramamurthy, V.S. Rao, N.K. Retiere, F. Reygers, K. Roland, G. Rosselet, L. Roufanov, I. Roy, C. Rubio, J.M. Sako, H. 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. Soderstrom, K. Solomey, N. Sood, G. Sorensen, S.P. Stankus, P. Stefanek, G. Steinberg, P. Stenlund, E. Stuken, D. Sumbera, M. Svensson, T. Trivedi, M.D. Tsvetkov, A. Tykarski, L. Urbahn, J. Pijll, E.C.v.d. Eijndhoven, N.v. Nieuwenhuizen, G.J.v. Vinogradov, A. Viyogi, Y.P. Vodopianov, A. Voros, S. Wyslouch, B. Yagi, K. Yokota, Y. Young, G.R. Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions |
| title | Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions |
| title_full | Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions |
| title_fullStr | Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions |
| title_full_unstemmed | Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions |
| title_short | Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions |
| title_sort | observation of direct photons in central 158 a gev $^{208}pb+^{208}pb$ collisions |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1103/PhysRevLett.85.3595 http://cds.cern.ch/record/441976 |
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observationofdirectphotonsincentral158agev208pb208pbcollisions AT raniwalar observationofdirectphotonsincentral158agev208pb208pbcollisions AT raniwalas observationofdirectphotonsincentral158agev208pb208pbcollisions AT ramamurthyvs observationofdirectphotonsincentral158agev208pb208pbcollisions AT raonk observationofdirectphotonsincentral158agev208pb208pbcollisions AT retieref observationofdirectphotonsincentral158agev208pb208pbcollisions AT reygersk observationofdirectphotonsincentral158agev208pb208pbcollisions AT rolandg observationofdirectphotonsincentral158agev208pb208pbcollisions AT rosseletl observationofdirectphotonsincentral158agev208pb208pbcollisions AT roufanovi observationofdirectphotonsincentral158agev208pb208pbcollisions AT royc observationofdirectphotonsincentral158agev208pb208pbcollisions AT rubiojm observationofdirectphotonsincentral158agev208pb208pbcollisions AT sakoh observationofdirectphotonsincentral158agev208pb208pbcollisions AT sambyalss observationofdirectphotonsincentral158agev208pb208pbcollisions AT santor observationofdirectphotonsincentral158agev208pb208pbcollisions AT satos observationofdirectphotonsincentral158agev208pb208pbcollisions AT schlagheckh observationofdirectphotonsincentral158agev208pb208pbcollisions AT schmidthr observationofdirectphotonsincentral158agev208pb208pbcollisions AT schutzy observationofdirectphotonsincentral158agev208pb208pbcollisions AT shabratovag observationofdirectphotonsincentral158agev208pb208pbcollisions AT shahth observationofdirectphotonsincentral158agev208pb208pbcollisions AT sibiriaki observationofdirectphotonsincentral158agev208pb208pbcollisions AT siemiarczukt observationofdirectphotonsincentral158agev208pb208pbcollisions AT silvermyrd observationofdirectphotonsincentral158agev208pb208pbcollisions AT sinhabc observationofdirectphotonsincentral158agev208pb208pbcollisions AT slavinen observationofdirectphotonsincentral158agev208pb208pbcollisions AT soderstromk observationofdirectphotonsincentral158agev208pb208pbcollisions AT solomeyn observationofdirectphotonsincentral158agev208pb208pbcollisions AT soodg observationofdirectphotonsincentral158agev208pb208pbcollisions AT sorensensp observationofdirectphotonsincentral158agev208pb208pbcollisions AT stankusp observationofdirectphotonsincentral158agev208pb208pbcollisions AT stefanekg observationofdirectphotonsincentral158agev208pb208pbcollisions AT steinbergp observationofdirectphotonsincentral158agev208pb208pbcollisions AT stenlunde observationofdirectphotonsincentral158agev208pb208pbcollisions AT stukend observationofdirectphotonsincentral158agev208pb208pbcollisions AT sumberam observationofdirectphotonsincentral158agev208pb208pbcollisions AT svenssont observationofdirectphotonsincentral158agev208pb208pbcollisions AT trivedimd observationofdirectphotonsincentral158agev208pb208pbcollisions AT tsvetkova observationofdirectphotonsincentral158agev208pb208pbcollisions AT tykarskil observationofdirectphotonsincentral158agev208pb208pbcollisions AT urbahnj observationofdirectphotonsincentral158agev208pb208pbcollisions AT pijllecvd observationofdirectphotonsincentral158agev208pb208pbcollisions AT eijndhovennv observationofdirectphotonsincentral158agev208pb208pbcollisions AT nieuwenhuizengjv observationofdirectphotonsincentral158agev208pb208pbcollisions AT vinogradova observationofdirectphotonsincentral158agev208pb208pbcollisions AT viyogiyp observationofdirectphotonsincentral158agev208pb208pbcollisions AT vodopianova observationofdirectphotonsincentral158agev208pb208pbcollisions AT voross observationofdirectphotonsincentral158agev208pb208pbcollisions AT wyslouchb observationofdirectphotonsincentral158agev208pb208pbcollisions AT yagik observationofdirectphotonsincentral158agev208pb208pbcollisions AT yokotay observationofdirectphotonsincentral158agev208pb208pbcollisions AT younggr observationofdirectphotonsincentral158agev208pb208pbcollisions |