Cargando…
Direct photons in WA98
A measurement of direct photon production in /sup 208/Pb+/sup 208/Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons was extracted as a function of transverse momentum in the interval 0.5<P/sub T/<3.3 GeV /c for, peripheral, and 0...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
2002
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0375-9474(01)01357-4 http://cds.cern.ch/record/544437 |
| _version_ | 1780898370986967040 |
|---|---|
| author | Aggarwal, M M Agnihotri, A Ahammed, Z Angelis, Aris L S Antonenko, V G Arefev, V Astakhov, V A Avdeichikov, V Awes, T C Baba, P V K S Badyal, S K Barlag, C Bathe, S Batyunya, B Bernier, T Bhalla, K B Bhatia, V S Blume, C Bock, R Bohne, E M Böröcz, Z K Bucher, D Buijs, A Büsching, H Carlén, L Chalyshev, V Chattopadhyay, S Cherbachev, R Chujo, T Claussen, A Das, A C Decowski, M P Delagrange, H Dzhordzhadze, V Dönni, P Dubovik, I Dutt, S Dutta-Majumdar, M R El-Chenawi, K F Eliseev, S Enosawa, K Foka, P Y Fokin, S L Ganti, M S Garpman, S Gavrishchuk, O P Geurts, F J M Ghosh, T K Glasow, R Gupta, S K Guskov, B Gustafsson, Hans Åke Gutbrod, H H Higuchi, R Hrivnacova, I Ippolitov, M S Kalechofsky, H Kamermans, R Kampert, K H Karadzhev, K Karpio, K Kato, S Kees, S Klein-Bösing, C Knoche, S Kolb, B W Kosarev, I G Kucheryaev, I Krümpel, T Kugler, A Kulinich, P A Kurata, M Kurita, K Kuzmin, N A Langbein, I Lee, Y Y Löhner, H Luquin, Lionel Mahapatra, D P Man'ko, V I Martin, M Martínez, G Maksimov, A Mgebrishvili, G Miake, Y Mir, M F Mishra, G C Miyamoto, Y Mohanty, B Morrison, D Mukhopadhyay, D S Naef, H Nandi, B K Nayak, S K Nayak, T K Neumaier, S Nyanin, A Nikitin, V A Nikolaev, S Nilsson, P O Nishimura, S Nomokonov, V P Nystrand, J Obenshain, F E Oskarsson, A Otterlund, I Pachr, M Pavlyuk, S Peitzmann, Thomas Petracek, V Pinganaud, W Plasil, F Von Poblotzki, U Purschke, M L Rak, J Raniwala, R Raniwala, S Ramamurthy, V S Rao, N K Retière, F Reygers, K Roland, G Rosselet, L Rufanov, I A 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 Sibiryak, Yu Siemiarczuk, T Silvermyr, D Sinha, B C Slavin, N V Söderström, K Solomey, Nickolas Sood, G Sørensen, S P Stankus, P Stefanek, G Steinberg, P Stenlund, E Stüken, D Sumbera, M Svensson, S Trivedi, M D Tsvetkov, A A Tykarski, L Urbahn, J Van den Pijll, E C van Eijndhoven, N van Nieuwenhuizen, G J Vinogradov, A Viyogi, Y P Vodopyanov, A S Vörös, S Wyslouch, B Yagi, K Yokota, Y Young, G R |
| author_facet | Aggarwal, M M Agnihotri, A Ahammed, Z Angelis, Aris L S Antonenko, V G Arefev, V Astakhov, V A Avdeichikov, V Awes, T C Baba, P V K S Badyal, S K Barlag, C Bathe, S Batyunya, B Bernier, T Bhalla, K B Bhatia, V S Blume, C Bock, R Bohne, E M Böröcz, Z K Bucher, D Buijs, A Büsching, H Carlén, L Chalyshev, V Chattopadhyay, S Cherbachev, R Chujo, T Claussen, A Das, A C Decowski, M P Delagrange, H Dzhordzhadze, V Dönni, P Dubovik, I Dutt, S Dutta-Majumdar, M R El-Chenawi, K F Eliseev, S Enosawa, K Foka, P Y Fokin, S L Ganti, M S Garpman, S Gavrishchuk, O P Geurts, F J M Ghosh, T K Glasow, R Gupta, S K Guskov, B Gustafsson, Hans Åke Gutbrod, H H Higuchi, R Hrivnacova, I Ippolitov, M S Kalechofsky, H Kamermans, R Kampert, K H Karadzhev, K Karpio, K Kato, S Kees, S Klein-Bösing, C Knoche, S Kolb, B W Kosarev, I G Kucheryaev, I Krümpel, T Kugler, A Kulinich, P A Kurata, M Kurita, K Kuzmin, N A Langbein, I Lee, Y Y Löhner, H Luquin, Lionel Mahapatra, D P Man'ko, V I Martin, M Martínez, G Maksimov, A Mgebrishvili, G Miake, Y Mir, M F Mishra, G C Miyamoto, Y Mohanty, B Morrison, D Mukhopadhyay, D S Naef, H Nandi, B K Nayak, S K Nayak, T K Neumaier, S Nyanin, A Nikitin, V A Nikolaev, S Nilsson, P O Nishimura, S Nomokonov, V P Nystrand, J Obenshain, F E Oskarsson, A Otterlund, I Pachr, M Pavlyuk, S Peitzmann, Thomas Petracek, V Pinganaud, W Plasil, F Von Poblotzki, U Purschke, M L Rak, J Raniwala, R Raniwala, S Ramamurthy, V S Rao, N K Retière, F Reygers, K Roland, G Rosselet, L Rufanov, I A 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 Sibiryak, Yu Siemiarczuk, T Silvermyr, D Sinha, B C Slavin, N V Söderström, K Solomey, Nickolas Sood, G Sørensen, S P Stankus, P Stefanek, G Steinberg, P Stenlund, E Stüken, D Sumbera, M Svensson, S Trivedi, M D Tsvetkov, A A Tykarski, L Urbahn, J Van den Pijll, E C van Eijndhoven, N van Nieuwenhuizen, G J Vinogradov, A Viyogi, Y P Vodopyanov, A S Vörös, 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 /sup 208/Pb+/sup 208/Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons was extracted as a function of transverse momentum in the interval 0.5<P/sub T/<3.3 GeV /c for, peripheral, and 0.5<P/sub T/<4.0 GeV/c for central collisions. The direct photon yield was extracted on a statistical basis as the difference between the measured inclusive spectrum of photons; and the calculated spectrum of photons which result from all hadrons with significant radiative decay contributions. While no direct photon excess was observed for the peripheral event sample, a, significant direct photon signal, compared to statistical and systematical errors, was seen in central collisions at P/sub T/>1.5 GeV/c. the result constitutes the first observation of direct photons in ultrarelativistic heavy-ion collisions. (19 refs). |
| id | cern-544437 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-5444372019-09-30T06:29:59Zdoi:10.1016/S0375-9474(01)01357-4http://cds.cern.ch/record/544437engAggarwal, M MAgnihotri, AAhammed, ZAngelis, Aris L SAntonenko, V GArefev, VAstakhov, V AAvdeichikov, VAwes, T CBaba, P V K SBadyal, S KBarlag, CBathe, SBatyunya, BBernier, TBhalla, K BBhatia, V SBlume, CBock, RBohne, E MBöröcz, Z KBucher, DBuijs, ABüsching, HCarlén, LChalyshev, VChattopadhyay, SCherbachev, RChujo, TClaussen, ADas, A CDecowski, M PDelagrange, HDzhordzhadze, VDönni, PDubovik, IDutt, SDutta-Majumdar, M REl-Chenawi, K FEliseev, SEnosawa, KFoka, P YFokin, S LGanti, M SGarpman, SGavrishchuk, O PGeurts, F J MGhosh, T KGlasow, RGupta, S KGuskov, BGustafsson, Hans ÅkeGutbrod, H HHiguchi, RHrivnacova, IIppolitov, M SKalechofsky, HKamermans, RKampert, K HKaradzhev, KKarpio, KKato, SKees, SKlein-Bösing, CKnoche, SKolb, B WKosarev, I GKucheryaev, IKrümpel, TKugler, AKulinich, P AKurata, MKurita, KKuzmin, N ALangbein, ILee, Y YLöhner, HLuquin, LionelMahapatra, D PMan'ko, V IMartin, MMartínez, GMaksimov, AMgebrishvili, GMiake, YMir, M FMishra, G CMiyamoto, YMohanty, BMorrison, DMukhopadhyay, D SNaef, HNandi, B KNayak, S KNayak, T KNeumaier, SNyanin, ANikitin, V ANikolaev, SNilsson, P ONishimura, SNomokonov, V PNystrand, JObenshain, F EOskarsson, AOtterlund, IPachr, MPavlyuk, SPeitzmann, ThomasPetracek, VPinganaud, WPlasil, FVon Poblotzki, UPurschke, M LRak, JRaniwala, RRaniwala, SRamamurthy, V SRao, N KRetière, FReygers, KRoland, GRosselet, LRufanov, I ARoy, CRubio, J MSako, HSambyal, S SSanto, RSato, SSchlagheck, HSchmidt, H RSchutz, YShabratova, GShah, T HSibiryak, YuSiemiarczuk, TSilvermyr, DSinha, B CSlavin, N VSöderström, KSolomey, NickolasSood, GSørensen, S PStankus, PStefanek, GSteinberg, PStenlund, EStüken, DSumbera, MSvensson, STrivedi, M DTsvetkov, A ATykarski, LUrbahn, JVan den Pijll, E Cvan Eijndhoven, Nvan Nieuwenhuizen, G JVinogradov, AViyogi, Y PVodopyanov, A SVörös, SWyslouch, BYagi, KYokota, YYoung, G RDirect photons in WA98Particle Physics - ExperimentA measurement of direct photon production in /sup 208/Pb+/sup 208/Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons was extracted as a function of transverse momentum in the interval 0.5<P/sub T/<3.3 GeV /c for, peripheral, and 0.5<P/sub T/<4.0 GeV/c for central collisions. The direct photon yield was extracted on a statistical basis as the difference between the measured inclusive spectrum of photons; and the calculated spectrum of photons which result from all hadrons with significant radiative decay contributions. While no direct photon excess was observed for the peripheral event sample, a, significant direct photon signal, compared to statistical and systematical errors, was seen in central collisions at P/sub T/>1.5 GeV/c. the result constitutes the first observation of direct photons in ultrarelativistic heavy-ion collisions. (19 refs).oai:cds.cern.ch:5444372002 |
| spellingShingle | Particle Physics - Experiment Aggarwal, M M Agnihotri, A Ahammed, Z Angelis, Aris L S Antonenko, V G Arefev, V Astakhov, V A Avdeichikov, V Awes, T C Baba, P V K S Badyal, S K Barlag, C Bathe, S Batyunya, B Bernier, T Bhalla, K B Bhatia, V S Blume, C Bock, R Bohne, E M Böröcz, Z K Bucher, D Buijs, A Büsching, H Carlén, L Chalyshev, V Chattopadhyay, S Cherbachev, R Chujo, T Claussen, A Das, A C Decowski, M P Delagrange, H Dzhordzhadze, V Dönni, P Dubovik, I Dutt, S Dutta-Majumdar, M R El-Chenawi, K F Eliseev, S Enosawa, K Foka, P Y Fokin, S L Ganti, M S Garpman, S Gavrishchuk, O P Geurts, F J M Ghosh, T K Glasow, R Gupta, S K Guskov, B Gustafsson, Hans Åke Gutbrod, H H Higuchi, R Hrivnacova, I Ippolitov, M S Kalechofsky, H Kamermans, R Kampert, K H Karadzhev, K Karpio, K Kato, S Kees, S Klein-Bösing, C Knoche, S Kolb, B W Kosarev, I G Kucheryaev, I Krümpel, T Kugler, A Kulinich, P A Kurata, M Kurita, K Kuzmin, N A Langbein, I Lee, Y Y Löhner, H Luquin, Lionel Mahapatra, D P Man'ko, V I Martin, M Martínez, G Maksimov, A Mgebrishvili, G Miake, Y Mir, M F Mishra, G C Miyamoto, Y Mohanty, B Morrison, D Mukhopadhyay, D S Naef, H Nandi, B K Nayak, S K Nayak, T K Neumaier, S Nyanin, A Nikitin, V A Nikolaev, S Nilsson, P O Nishimura, S Nomokonov, V P Nystrand, J Obenshain, F E Oskarsson, A Otterlund, I Pachr, M Pavlyuk, S Peitzmann, Thomas Petracek, V Pinganaud, W Plasil, F Von Poblotzki, U Purschke, M L Rak, J Raniwala, R Raniwala, S Ramamurthy, V S Rao, N K Retière, F Reygers, K Roland, G Rosselet, L Rufanov, I A 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 Sibiryak, Yu Siemiarczuk, T Silvermyr, D Sinha, B C Slavin, N V Söderström, K Solomey, Nickolas Sood, G Sørensen, S P Stankus, P Stefanek, G Steinberg, P Stenlund, E Stüken, D Sumbera, M Svensson, S Trivedi, M D Tsvetkov, A A Tykarski, L Urbahn, J Van den Pijll, E C van Eijndhoven, N van Nieuwenhuizen, G J Vinogradov, A Viyogi, Y P Vodopyanov, A S Vörös, S Wyslouch, B Yagi, K Yokota, Y Young, G R Direct photons in WA98 |
| title | Direct photons in WA98 |
| title_full | Direct photons in WA98 |
| title_fullStr | Direct photons in WA98 |
| title_full_unstemmed | Direct photons in WA98 |
| title_short | Direct photons in WA98 |
| title_sort | direct photons in wa98 |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/S0375-9474(01)01357-4 http://cds.cern.ch/record/544437 |
| work_keys_str_mv | AT aggarwalmm directphotonsinwa98 AT agnihotria directphotonsinwa98 AT ahammedz directphotonsinwa98 AT angelisarisls directphotonsinwa98 AT antonenkovg directphotonsinwa98 AT arefevv directphotonsinwa98 AT astakhovva directphotonsinwa98 AT avdeichikovv directphotonsinwa98 AT awestc directphotonsinwa98 AT babapvks directphotonsinwa98 AT badyalsk directphotonsinwa98 AT barlagc directphotonsinwa98 AT bathes directphotonsinwa98 AT batyunyab directphotonsinwa98 AT berniert directphotonsinwa98 AT bhallakb directphotonsinwa98 AT bhatiavs directphotonsinwa98 AT blumec directphotonsinwa98 AT bockr directphotonsinwa98 AT bohneem directphotonsinwa98 AT boroczzk directphotonsinwa98 AT bucherd directphotonsinwa98 AT buijsa directphotonsinwa98 AT buschingh directphotonsinwa98 AT carlenl directphotonsinwa98 AT chalyshevv directphotonsinwa98 AT chattopadhyays directphotonsinwa98 AT cherbachevr directphotonsinwa98 AT chujot directphotonsinwa98 AT claussena directphotonsinwa98 AT dasac directphotonsinwa98 AT decowskimp directphotonsinwa98 AT delagrangeh directphotonsinwa98 AT dzhordzhadzev directphotonsinwa98 AT donnip directphotonsinwa98 AT duboviki directphotonsinwa98 AT dutts directphotonsinwa98 AT duttamajumdarmr directphotonsinwa98 AT elchenawikf directphotonsinwa98 AT eliseevs directphotonsinwa98 AT enosawak directphotonsinwa98 AT fokapy directphotonsinwa98 AT fokinsl directphotonsinwa98 AT gantims directphotonsinwa98 AT garpmans directphotonsinwa98 AT gavrishchukop directphotonsinwa98 AT geurtsfjm directphotonsinwa98 AT ghoshtk directphotonsinwa98 AT glasowr directphotonsinwa98 AT guptask directphotonsinwa98 AT guskovb directphotonsinwa98 AT gustafssonhansake directphotonsinwa98 AT gutbrodhh directphotonsinwa98 AT higuchir directphotonsinwa98 AT hrivnacovai directphotonsinwa98 AT ippolitovms directphotonsinwa98 AT kalechofskyh directphotonsinwa98 AT kamermansr directphotonsinwa98 AT kampertkh directphotonsinwa98 AT karadzhevk directphotonsinwa98 AT karpiok directphotonsinwa98 AT katos directphotonsinwa98 AT keess directphotonsinwa98 AT kleinbosingc directphotonsinwa98 AT knoches directphotonsinwa98 AT kolbbw directphotonsinwa98 AT kosarevig directphotonsinwa98 AT kucheryaevi directphotonsinwa98 AT krumpelt directphotonsinwa98 AT kuglera directphotonsinwa98 AT kulinichpa directphotonsinwa98 AT kuratam directphotonsinwa98 AT kuritak directphotonsinwa98 AT kuzminna directphotonsinwa98 AT langbeini directphotonsinwa98 AT leeyy directphotonsinwa98 AT lohnerh directphotonsinwa98 AT luquinlionel directphotonsinwa98 AT mahapatradp directphotonsinwa98 AT mankovi directphotonsinwa98 AT martinm directphotonsinwa98 AT martinezg directphotonsinwa98 AT maksimova directphotonsinwa98 AT mgebrishvilig directphotonsinwa98 AT miakey directphotonsinwa98 AT mirmf directphotonsinwa98 AT mishragc directphotonsinwa98 AT miyamotoy directphotonsinwa98 AT mohantyb directphotonsinwa98 AT morrisond directphotonsinwa98 AT mukhopadhyayds directphotonsinwa98 AT naefh directphotonsinwa98 AT nandibk directphotonsinwa98 AT nayaksk directphotonsinwa98 AT nayaktk directphotonsinwa98 AT neumaiers directphotonsinwa98 AT nyanina directphotonsinwa98 AT nikitinva directphotonsinwa98 AT nikolaevs directphotonsinwa98 AT nilssonpo directphotonsinwa98 AT nishimuras directphotonsinwa98 AT nomokonovvp directphotonsinwa98 AT nystrandj directphotonsinwa98 AT obenshainfe directphotonsinwa98 AT oskarssona directphotonsinwa98 AT otterlundi directphotonsinwa98 AT pachrm directphotonsinwa98 AT pavlyuks directphotonsinwa98 AT peitzmannthomas directphotonsinwa98 AT petracekv directphotonsinwa98 AT pinganaudw directphotonsinwa98 AT plasilf directphotonsinwa98 AT vonpoblotzkiu directphotonsinwa98 AT purschkeml directphotonsinwa98 AT rakj directphotonsinwa98 AT raniwalar directphotonsinwa98 AT raniwalas directphotonsinwa98 AT ramamurthyvs directphotonsinwa98 AT raonk directphotonsinwa98 AT retieref directphotonsinwa98 AT reygersk directphotonsinwa98 AT rolandg directphotonsinwa98 AT rosseletl directphotonsinwa98 AT rufanovia directphotonsinwa98 AT royc directphotonsinwa98 AT rubiojm directphotonsinwa98 AT sakoh directphotonsinwa98 AT sambyalss directphotonsinwa98 AT santor directphotonsinwa98 AT satos directphotonsinwa98 AT schlagheckh directphotonsinwa98 AT schmidthr directphotonsinwa98 AT schutzy directphotonsinwa98 AT shabratovag directphotonsinwa98 AT shahth directphotonsinwa98 AT sibiryakyu directphotonsinwa98 AT siemiarczukt directphotonsinwa98 AT silvermyrd directphotonsinwa98 AT sinhabc directphotonsinwa98 AT slavinnv directphotonsinwa98 AT soderstromk directphotonsinwa98 AT solomeynickolas directphotonsinwa98 AT soodg directphotonsinwa98 AT sørensensp directphotonsinwa98 AT stankusp directphotonsinwa98 AT stefanekg directphotonsinwa98 AT steinbergp directphotonsinwa98 AT stenlunde directphotonsinwa98 AT stukend directphotonsinwa98 AT sumberam directphotonsinwa98 AT svenssons directphotonsinwa98 AT trivedimd directphotonsinwa98 AT tsvetkovaa directphotonsinwa98 AT tykarskil directphotonsinwa98 AT urbahnj directphotonsinwa98 AT vandenpijllec directphotonsinwa98 AT vaneijndhovenn directphotonsinwa98 AT vannieuwenhuizengj directphotonsinwa98 AT vinogradova directphotonsinwa98 AT viyogiyp directphotonsinwa98 AT vodopyanovas directphotonsinwa98 AT voross directphotonsinwa98 AT wyslouchb directphotonsinwa98 AT yagik directphotonsinwa98 AT yokotay directphotonsinwa98 AT younggr directphotonsinwa98 |