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  1. Article ; Online: Observation of direct photons in central 158A GeV (208)P(208)b+Pb collisions

    Nikolaev / Nilsson / Nishimura / Nomokonov / Nystrand / Obenshain / Oskarsson / Otterlund / Pachr / Pavliouk / Peitzmann / Petracek / Pinganaud / Plasil / Poblotzki / Purschke / Rak / Raniwala / Ramamurthy /
    Rao / Retiere / Reygers / Roland / Rosselet / Roufanov

    Physical review letters

    2000  Volume 85, Issue 17, Page(s) 3595–3599

    Abstract: A measurement of direct photon production in 208Pb+208Pb collisions at 158A 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 ... ...

    Abstract A measurement of direct photon production in 208Pb+208Pb collisions at 158A 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 result constitutes the first observation of direct photons in ultrarelativistic heavy-ion collisions. It could be significant for diagnosis of quark-gluon-plasma formation.
    Language English
    Publishing date 2000-10-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.85.3595
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Suppression of high-p{T} neutral pion production in central Pb+Pb collisions at sqrt[S{NN}]=17.3 GeV relative to p+C and p+Pb collisions.

    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 / Baumann, C / 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 / Majumdar, M R Dutta / 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 A / Gutbrod, H H / Hrivnacova, I / Ippolitov, M / Kalechofsky, H / Kamermans, R / 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 / Mukhanova, 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 / Pavliouk, S / Peitzmann, T / Peressounko, D / Petracek, V / Phatak, S C / Pinganaud, W / Plasil, F / Purschke, M L / Rak, J / Rammler, M / 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 / V D Pijll, E C / V Eijndhoven, N / V Nieuwenhuizen, G J / Vinogradov, A / Viyogi, Y P / Vodopianov, A / Vörös, S / Wysłouch, B / Young, G R

    Physical review letters

    2008  Volume 100, Issue 24, Page(s) 242301

    Abstract: Neutral pion transverse momentum spectra were measured in p+C and p+Pb collisions at sqrt[S{NN}]=17.4 GeV at midrapidity (2.3 less than or approximately equal eta{lab} less than or approximately equal 3.0) over the range 0.7 less than or approximately ... ...

    Abstract Neutral pion transverse momentum spectra were measured in p+C and p+Pb collisions at sqrt[S{NN}]=17.4 GeV at midrapidity (2.3 less than or approximately equal eta{lab} less than or approximately equal 3.0) over the range 0.7 less than or approximately equal p{T} less than or approximately equal 3.5 GeV/c. The spectra are compared to pi{0} spectra measured in Pb+Pb collisions at sqrt[S{NN}]=17.3 GeV in the same experiment. For a wide range of Pb+Pb centralities (N{part} less than or approximately equal 300), the yield of pi{0}'s with p{T} greater than or approximately equal 2 GeV/c is larger than or consistent with the p+C or p+Pb yields scaled with the number of nucleon-nucleon collisions (N{coll}), while for central Pb+Pb collisions with N{part}greater than or approximately equal 350, the pi{0} yield is suppressed.
    Language English
    Publishing date 2008-06-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.100.242301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: 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 A / 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 / v d Pijll, E C / von Eijndhoven, N / von Nieuwenhuizen, G J / Vinogradov, A / Viyogi, Y P / Vodopianov, A / Vörös, S / Wysłouch, B / Young, G R

    Physical review letters

    2004  Volume 93, Issue 2, Page(s) 22301

    Abstract: Two-particle correlations of direct photons were measured in central 208Pb+208Pb collisions at 158A GeV. The invariant interferometric radii were extracted for 100

    Abstract Two-particle correlations of direct photons were measured in central 208Pb+208Pb collisions at 158A GeV. The invariant interferometric radii were extracted for 100<K(T)<300 MeV/c and compared to radii extracted from charged pion correlations. The yield of soft direct photons, K(T)<300 MeV/c, was extracted from the correlation strength and compared to theoretical calculations.<br />
    Language English
    Publishing date 2004-07-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.93.022301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Three-pion interferometry results from central Pb+Pb collisions at 158A GeV/c.

    Aggarwal, M M / Agnihotri, A / Ahammed, Z / Angelis, A L / Antonenko, V / Arefiev, V / Astakhov, V / Avdeitchikov, V / Awes, T C / Baba, P V / Badyal, S K / Barlag, C / Bathe, S / Batiounia, B / Bernier, T / Bhalla, K B / Bhatia, V S / Blume, C / Bock, R /
    Bohne, E M / Böröcz, Z / Bucher, D / Buijs, A / Büsching, 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 / 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-Bösing, C / Knoche, S / Kolb, B W / Kosarev, I / Koutcheryaev, I / Krümpel, T / Kugler, A / Kulinich, P / Kurata, M / Kurita, K / Kuzmin, N / Langbein, I / Lebedev, A / Lee, Y Y / Löhner, H / Luquin, L / Mahapatra, D P / Manko, V / Martin, M / Martínez, G / Maximov, A / Mgebrichvili, G / Miake, Y / Mir, M 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 / von Poblotzki, U / 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 / Söderström, K / Solomey, N / Sørensen, S P / Stankus, P / Stefanek, G / Steinberg, P / Stenlund, E / Stüken, D / Sumbera, M / Svensson, T / Trivedi, M D / Tsvetkov, A / Tykarski, L / Urbahn, J / Pijll, E C / Eijndhoven, N / Nieuwenhuizen, G J / Vinogradov, A / Viyogi, Y P / Vodopianov, A / Vörös, S / Wysłouch, B / Yagi, K / Yokota, Y / Young, G R

    Physical review letters

    2000  Volume 85, Issue 14, Page(s) 2895–2899

    Abstract: Three-particle correlations have been measured for identified pi(-) from central 158A GeV Pb+Pb collisions by the WA98 experiment at CERN. A substantial contribution of the genuine three-body correlation has been found as expected for a mainly chaotic ... ...

    Abstract Three-particle correlations have been measured for identified pi(-) from central 158A GeV Pb+Pb collisions by the WA98 experiment at CERN. A substantial contribution of the genuine three-body correlation has been found as expected for a mainly chaotic and symmetric source.
    Language English
    Publishing date 2000-10-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.85.2895
    Database MEDical Literature Analysis and Retrieval System OnLINE

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