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Aduszkiewicz, Antoni ; Ali, Yasir ; Andronov, Evgeny V. ; Antičić, Tome ; Baatar, B. ; Baszczyk, Mateusz ; Bhosale, S. ; Blondel, A. ; Bogomilov, Mariyan ; Brandin, Andrei V. ; Bravar, Alessandro ; Brzychczyk, Janusz ; Bunyatov, S. A. ; Busygina, O. ; Cherif, H. ; Ćirković, M. ; Czopowicz, T. ; Damyanova, A. ; Davis, N. ; Dembinski, H. ; Deveaux, Michael ; Dominik, W. ; Dorosz, Piotr ; Dumarchez, J. ; Engel, Ralph ; Ereditato, A. ; Faas, S. ; Feofilov, Grigori A. ; Fodor, Zoltán ; Francois, C. ; Garrido, X. ; Garibov, A. ; Gaździcki, Marek ; Golubeva, Marina ; Grebieszkow, Katarzyna ; Guber, Fedor ; Haesler, A. ; Hervé, A. E. ; Hylen, J. ; Igolkin, Sergey N. ; Ivashkin, Alexander ; Johnson, S. R. ; Kadija, Krešo ; Kaptur, E. ; Kiełbowicz, Mirosław ; Kireyeu, Viktar A. ; Klochkov, Viktor ; Kolesnikov, Vadim I. ; Kolev, D. ; Korzenev, A. ; Kovalenko, V. N. ; Kowalik, K. ; Kowalski, S. ; Koziel, Michal ; Krasnoperov, A. ; Kucewicz, Wojciech ; Kuich, M. ; Kurepin, Alexander ; Larsen, Dag Toppe ; László, A. ; Lazareva, Tatiana V. ; Lewicki, M. ; Lundberg, B. ; Łysakowski, B. ; Lyubushkin, V. V. ; Mariş, I. C. ; Maćkowiak-Pawłowska, Maja ; Maksiak, B. ; Malakhov, Aleksandr I. ; Manić, D. ; Marchionni, A. ; Marcinek, A. ; Marino, A. D. ; Marton, K. ; Mathes, H. -J. ; Matulewicz, Tomasz ; Matveev, V. ; Melkumov, Georgy L. ; Merzlaya, Anastasia O. ; Messerly, B. ; Mik, Łukasz ; Mills, G. B. ; Morozov, Sergey ; Mrówczyński, Stanislaw ; Nagai, Y. ; Naskręt, Michał ; Ozvenchuk, Vitalii ; Paolone, V. ; Pavin, M. ; Petukhov, Oleg ; Pistillo, C. ; Płaneta, Roman ; Podlaski, P. ; Popov, B. A. ; Posiadała, M. ; Puławski, S. ; Puzović, Jovan ; Rameika, R. ; Rauch, Wolfgang Hans ; Ravonel, M. ; Renfordt, Rainer Arno Ernst ; Richter-Wąs, E. ; Röhrich, Dieter ; Rondio, E. ; Roth, M. ; Rumberger, Brant T. ; Ruprecht, M. ; Rustamov, Anar ; Rybczyński, Maciej ; Rybicki, Andrzej ; Sadovsky, Alexander ; Schmidt, K. ; Selyuzhenkov, Ilya ; Seryakov, A. Yu. ; Seyboth, Peter ; Słodkowski, M. ; Snoch, Aleksandra ; Staszel, P. ; Stefanek, Grzegorz ; Stepaniak, J. ; Strichanov, Michail Nikolaevič ; Ströbele, Herbert ; Šuša, Tatjana ; Szuba, M. ; Taranenko, Arkadiy ; Tefelska, A. ; Tefelski, Dariusz ; Tereshchenko, V. ; Toia, Alberica ; Tsenov, R. ; Turko, L. ; Ulrich, R. ; Unger, M. ; Valiev, F. F. ; Veberič, Darko ; Vechernin, V. V. ; Walewski, M. ; Wickremasinghe, A. ; Wilkinson, C. ; Włodarczyk, Zbigniew ; Wojtaszek-Szwarc, Agnieszka ; Wyszyński, Oskar ; Zambelli, L. ; Zimmerman, E. D. ; Zwaska, Robert
We present measurements of ρ0, ω and K∗0 spectra in π−+ C production interactions at 158 GeV / c and ρ0 spectra at 350 GeV / c using the NA61/SHINE spectrometer at the CERN SPS. Spectra are presented as a function of the Feynman’s variable xF in the range 0<xF<1 and 0<xF<0.5 for 158 and 350 GeV / c respectively. Furthermore, we show comparisons with previous measurements and predictions of several hadronic interaction models. These measurements are essential for a better understanding of hadronic shower development and for improving the modeling of cosmic ray air showers.
Alt, Christopher ; Antičić, Tome ; Baatar, B. ; Barna, Daniel ; Bartke, Jerzy ; Betev, Latchezar ; Białkowska, Helena ; Blume, Christoph ; Boimska, Bożena ; Botje, Michiel ; Bracinik, J. ; Bramm, Roland ; Černý, Vladimír ; Christakoglou, Panagiotis ; Chung, P. ; Chvala, Ondrej ; Cramer, John G. ; Csató, Péter ; Dinkelaker, Peter ; Eckard, V. ; Flierl, Dominik Bernhard ; Fodor, Zoltán ; Foka, Panagiota ; Friese, Volker ; Gál, József ; Gaździcki, Marek ; Genchev, Vladimir ; Georgopoulos, George ; Gładysz-Dziaduś, Ewa ; Grebieszkow, Katarzyna ; Hegyi, Sándor ; Höhne, Claudia ; Kadija, Krešo ; Karev, A. ; Kikola, D. ; Kliemant, Michael ; Kniege, Stefan ; Kolesnikov, Vadim I. ; Kornaś, Ewelina ; Korus, Robert ; Kowalski, Marek ; Kraus, Ingrid ; Kreps, Michal ; Laszlo, A. ; Lacey, R ; Leeuwen, Marco van ; Lévai, Péter ; Litov, Leandr ; Lungwitz, Benjamin ; Makariev, Martin ; Malakhov, Aleksandr I. ; Mateev, Matej D. ; Melkumov, Georgy L. ; Mischke, André ; Mitrovski, Michael Kosta ; Molnár, József ; Mrówczynski, Stanislaw ; Nicolic, V. ; Nicolic, G. ; Panagiotou, Apostolos D. ; Panayotov, Dobromir ; Petridis, Athanasios ; Peryt, Wiktor Stanislaw ; Pikna, Miroslav ; Pluta, Jan Marian ; Prindle, Duncan J. ; Pühlhofer, Falk ; Renfordt, Rainer Arno Ernst ; Roland, Christof ; Roland, Gunther ; Rybczyński, Maciej ; Rybicki, Andrzej ; Sandoval, Andres ; Schmitz, N. ; Schuster, Tim ; Seyboth, Peter ; Siklér, Ferenc ; Sitar, Branislav ; Skrzypczak, Ewa ; Slodkowski, M. ; Stefanek, Grzegorz ; Stock, Reinhard ; Strabel, Claudia ; Ströbele, Herbert ; Šuša, Tatjana ; Szentpétery, Imre ; Sziklai, János ; Szuba, M. ; Szymanski, P. ; Trubnikov, Victor ; Varga, Dezsö ; Vassiliou, Maria ; Veres, Gábor I. ; Vesztergombi, György ; Vranić, Danilo ; Wetzler, Alexander Albert ; Włodarczyk, Zbigniew ; Wojtaszek, A. ; Yoo, In-Kwon ; Zimányi, József
The energy dependence of multiplicity fluctuations was studied for the most central Pb+Pb collisions at 20A, 30A, 40A, 80A and 158A GeV by the NA49 experiment at the CERN SPS. The multiplicity distribution for negatively and positively charged hadrons is significantly narrower than Poisson one for all energies. No significant structure in energy dependence of the scaled variance of multiplicity fluctuations is observed. The measured scaled variance is lower than the one predicted by the grand-canonical formulation of the hadron-resonance gas model. The results for scaled variance are in approximate agreement with the string-hadronic model UrQMD.
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