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1. Measurements of higher-order cumulants of multiplicity and net-electric charge distributions in inelastic proton–proton interactions by NA61/SHINE

Author: NA61/SHINE Collaboration, H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, I.-C. Arsene, M. Bajda, Y. Balkova, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, A. Borucka, A. Brandin, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, A. Dmitriev, P. von Doetinchem, W. Dominik, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, R. Kolesnikov, D. Kolev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, A. Olivier, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, D. Rybka, K. Sakashita, K. Schmidt, A. Yu. Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, Ł. Świderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, D. Veberič, V. V. Vechernin, O. Vitiuk, V. Volkov, A. Wickremasinghe, K. Witek, K. Wójcik, O. Wyszyński, A. Zaitsev, E. Zherebtsova, E. D. Zimmerman, A. Zviagina, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract This paper presents the energy dependence of multiplicity and net-electric charge fluctuations in p+p interactions at beam momenta 20, 31, 40, 80, and 158 $$\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$$ Ge V / c . Results are corrected for the experimental biases and quantified with the use of cumulants and factorial cumulants. Cumulant ratios are an essential tool in the search for the critical point of strongly interacting matter in heavy ion collisions. Measurements performed in p+p interactions provide a vital baseline estimation in these studies. The measured signals are compared with the string hadronic models Epos1.99 and FTFP-BERT.
Published: 2024
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2. $$K^0_S$$ K S 0 meson production in inelastic p+p interactions at 31, 40 and 80 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$ Ge V / c beam momentum measured by NA61 $$/$$ / SHINE at the CERN SPS

Author: NA61/SHINE Collaboration, N. Abgrall, H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I.-C. Arsene, M. Bajda, Y. Balkova, M. Baszczyk, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, A. Dmitriev, P. von Doetinchem, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, K. Kadija, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, A. Korzenev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, K. Sakashita, K. Schmidt, A. Yu. Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, L. Swiderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The yields of $$K^0_S$$ K S 0 mesons have been measured in inelastic p+p interactions at incident projectile momenta of 31, 40 and 80 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$ Ge V / c ( $$\sqrt{s_{NN}}=7.7, 8.8$$ s NN = 7.7 , 8.8 and 12.3 $$\text {Ge}\hspace{-1.00006pt}\text {V}$$ Ge V , respectively). The data were recorded by the NA61 $$/$$ / SHINE spectrometer at the CERN Super Proton Synchrotron and the $$K^0_S$$ K S 0 mesons identified via their decays into $$\pi ^{+} \pi ^{-}$$ π + π - pairs. Double-differential distributions are presented as function of transverse momentum and rapidity. The mean multiplicities of $$K^0_S$$ K S 0 mesons were determined to be $$(5.95 \pm 0.19 (stat) \pm 0.30 (sys)) \times 10^{-2}$$ ( 5.95 ± 0.19 ( s t a t ) ± 0.30 ( s y s ) ) × 10 - 2 at 31 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$ Ge V / c , $$(7.61 \pm 0.13 (stat) \pm 0.43 (sys)) \times 10^{-2}$$ ( 7.61 ± 0.13 ( s t a t ) ± 0.43 ( s y s ) ) × 10 - 2 at 40 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$ Ge V / c and $$(11.58 \pm 0.12 (stat) \pm 0.55 (sys)) \times 10^{-2}$$ ( 11.58 ± 0.12 ( s t a t ) ± 0.55 ( s y s ) ) × 10 - 2 at 80 $$\text {Ge}\hspace{-1.00006pt}\text {V}\!/\!c$$ Ge V / c . The results on $$K^{0}_{S}$$ K S 0 production are compared with the production of charged kaons in corresponding reactions and with model calculations (Epos1.99, SMASH 2.0 and PHSD) as well as with published data from other experiments.
Published: 2024
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3. Search for a critical point of strongly-interacting matter in central $$^{40}$$ 40 Ar + $$^{45}$$ 45 Sc collisions at 13 A–75 A GeV/c beam momentum

Author: NA61/SHINE Collaboration, H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I.-C. Arsene, M. Bajda, Y. Balkova, M. Baszczyk, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, P. Christakoglou, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, F. Diakonos, A. Dmitriev, P. von Doetinchem, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, K. Kadija, A. Kapoyannis, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A.D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, A. D. Panagiotou, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, K. Sakashita, K. Schmidt, A. Yu Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, L. Swiderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, M. Vassiliou, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The critical point of strongly interacting matter is searched for at the CERN SPS by the NA61/SHINE experiment in central $$^{40}$$ 40 Ar + $$^{45}$$ 45 Sc collisions at 13 A, 19 A, 30 A, 40 A, and 75 A GeV/c. The dependence of the second-order scaled factorial moments of proton multiplicity distributions on the number of subdivisions in transverse momentum space is measured. The intermittency analysis uses statistically independent data sets for every subdivision in transverse and cumulative-transverse momentum variables. The results obtained do not indicate the searched intermittent pattern. An upper limit on the fraction of correlated protons and the intermittency index is obtained based on a comparison with the Power-law Model.
Published: 2024
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4. Measurements of $$\pi ^\pm $$ π ± , $$K^\pm $$ K ± , p and $$\bar{p}$$ p ¯ spectra in $$^{40}\hbox {Ar+}^{45}\hbox {Sc}$$ 40 Ar+ 45 Sc collisions at 13A to 150A $$\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$$ Ge V / c

Author: NA61/SHINE Collaboration, H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I.-C. Arsene, M. Bajda, Y. Balkova, M. Baszczyk, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, A. Dmitriev, P. von Doetinchem, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, K. Kadija, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, K. Sakashita, K. Schmidt, A.Yu. Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, L. Swiderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $$\pi ^\pm $$ π ± , $$K^\pm $$ K ± , p and $$\bar{p}$$ p ¯ produced in $$^{40}\hbox {Ar+}^{45}\hbox {Sc}$$ 40 Ar+ 45 Sc collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150A $$\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$$ Ge V / c . The analysis uses the 10% most central collisions, where the observed forward energy defines centrality. The energy dependence of the $$K^\pm $$ K ± / $$\pi ^\pm $$ π ± ratios as well as of inverse slope parameters of the $$K^\pm $$ K ± transverse mass distributions are placed in between those found in inelastic $$p+p$$ p + p and central Pb + Pb collisions. The results obtained here establish a system-size dependence of hadron production properties that so far cannot be explained either within statistical or dynamical models.
Published: 2024
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5. Constraining nucleon effective masses with flow and stopping observables from the SπRIT experiment

Author: C.Y. Tsang, M. Kurata-Nishimura, M.B. Tsang, W.G. Lynch, Y.X. Zhang, J. Barney, J. Estee, G. Jhang, R. Wang, M. Kaneko, J.W. Lee, T. Isobe, T. Murakami, D.S. Ahn, L. Atar, T. Aumann, H. Baba, K. Boretzky, J. Brzychczyk, G. Cerizza, N. Chiga, N. Fukuda, I. Gasparic, B. Hong, A. Horvat, K. Ieki, N. Inabe, Y.J. Kim, T. Kobayashi, Y. Kondo, P. Lasko, H.S. Lee, Y. Leifels, J. Łukasik, J. Manfredi, A.B. McIntosh, P. Morfouace, T. Nakamura, N. Nakatsuka, S. Nishimura, H. Otsu, P. Pawłowski, K. Pelczar, D. Rossi, H. Sakurai, C. Santamaria, H. Sato, H. Scheit, R. Shane, Y. Shimizu, H. Simon, A. Snoch, A. Sochocka, T. Sumikama, H. Suzuki, D. Suzuki, H. Takeda, S. Tangwancharoen, H. Törnqvist, Y. Togano, Z.G. Xiao, S.J. Yennello, and Y. Zhang
Subjects: Physics, QC1-999
Abstract: Properties of the nuclear equation of state (EoS) can be probed by measuring the dynamical properties of nucleus-nucleus collisions. In this study, we present the directed flow (v1), elliptic flow (v2) and stopping (VarXZ) measured in fixed target Sn + Sn collisions at Image 1 with the SπRIT Time Projection Chamber. We perform Bayesian analyses in which EoS parameters are varied simultaneously within the Improved Quantum Molecular Dynamics-Skyrme (ImQMD-Sky) transport code to obtain a multivariate correlated constraint. The varied parameters include symmetry energy, S0, and slope of the symmetry energy, L, at saturation density, isoscalar effective mass, ms⁎/mN, isovector effective mass, mv⁎/mN and the in-medium cross-section enhancement factor η. We find that the flow and VarXZ observables are sensitive to the splitting of proton and neutron effective masses and the in-medium cross-section. Comparisons of ImQMD-Sky predictions to the SπRIT data suggest a narrow range of preferred values for ms⁎/mN, mv⁎/mN and η.
Published: 2024
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6. Two-pion femtoscopic correlations in Be+Be collisions at $$\sqrt{s_{\text {NN}}} = 16.84$$ s NN = 16.84 GeV measured by the NA61/SHINE at CERN

Author: H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I.-C. Arsene, M. Bajda, Y. Balkova, M. Baszczyk, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, A. Dmitriev, P. von Doetinchem, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, K. Kadija, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, K. Sakashita, K. Schmidt, A. Yu. Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, Ł. Świderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, R. Zwaska, and NA61/SHINE Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract This paper reports measurements of two-pion femtoscopic correlations in Be+Be collisions at a beam momentum of 150 $$A\,\hbox {GeV}\!/\!c$$ A GeV / c (energy available in the center-of-mass system for nucleon pair $$\sqrt{s_{\text {NN}}} = 16.84$$ s NN = 16.84 GeV) by the NA61/SHINE experiment at the CERN SPS accelerator. The obtained momentum space correlation functions can be well described by a Lévy distributed source model. The transverse mass dependence of the Lévy source parameters is presented, and their possible theoretical interpretations are discussed. The results show that the Lévy exponent $$\alpha $$ α is approximately constant as a function of $$m_{\text {T}}$$ m T , and far from both the Gaussian case of $$\alpha = 2$$ α = 2 or the conjectured value at the critical endpoint, $$\alpha = 0.5$$ α = 0.5 . The radius scale parameter R shows a slight decrease in $$m_{\text {T}}$$ m T , which can be explained as a signature of transverse flow. Finally, an approximately constant trend of the intercept parameter $$\lambda $$ λ as a function of $$m_{\text {T}}$$ m T was observed, similar to previous NA44 S + Pb results (obtained with a Gaussian approximation, but unlike RHIC results).
Published: 2023
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7. Search for the critical point of strongly-interacting matter in 40Ar + 45Sc collisions at 150A Ge V /c using scaled factorial moments of protons

Author: H. Adhikary, P. Adrich, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I.-C. Arsene, M. Bajda, Y. Balkova, M. Baszczyk, D. Battaglia, A. Bazgir, S. Bhosale, M. Bielewicz, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, W. Bryliński, J. Brzychczyk, M. Buryakov, A. F. Camino, P. Christakoglou, M. Ćirković, M. Csanád, J. Cybowska, T. Czopowicz, C. Dalmazzone, N. Davis, F. Diakonos, A. Dmitriev, P. von Doetinchem, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, K. Kadija, A. Kapoyannis, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, H. Kitagawa, R. Kolesnikov, D. Kolev, Y. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuchowicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, Ł. Mik, A. Morawiec, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, S. Nishimori, V. Ozvenchuk, A. D. Panagiotou, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Pórfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, R. Renfordt, L. Ren, V. Z. Reyna Ortiz, D. Röhrich, E. Rondio, M. Roth, Ł. Rozpłochowski, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, K. Sakashita, K. Schmidt, A. Yu. Seryakov, P. Seyboth, U. A. Shah, Y. Shiraishi, A. Shukla, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, L. Swiderski, J. Szewiński, R. Szukiewicz, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, M. Urbaniak, F. F. Valiev, M. Vassiliou, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The critical point of dense, strongly interacting matter is searched for at the CERN SPS in 40Ar + 45Sc collisions at 150A Ge V /c. The dependence of second-order scaled factorial moments of proton multiplicity distribution on the number of subdivisions of transverse momentum space is measured. The intermittency analysis is performed using both transverse momentum and cumulative transverse momentum. For the first time, statistically independent data sets are used for each subdivision number. The obtained results do not indicate any statistically significant intermittency pattern. An upper limit on the fraction of correlated proton pairs and the power of the correlation function is obtained based on a comparison with the Power-law Model developed for this purpose.
Published: 2023
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8. A high-resolution pixel silicon Vertex Detector for open charm measurements with the NA61/SHINE spectrometer at the CERN SPS

Author: A. Aduszkiewicz, M. Bajda, M. Baszczyk, W. Bryliíski, J. Brzychczyk, M. Deveaux, P. Dorosz, S. Di Luise, G. Feofilov, M. Gazdzicki, S. Igolkin, M. Jabłoński, V. Kovalenko, M. Koziel, W. Kucewicz, D. Larsen, T. Lazareva, Z. Majka, P. Martinengo, A. Merzlaya, L. Mik, R. Płaneta, P. Staszel, M. Suljic, D. Tefelski, and V. Vechernin
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The study of open charm meson production provides an efficient tool for the investigation of the properties of hot and dense matter formed in nucleus–nucleus collisions. The interpretation of the existing di-muon data from the CERN SPS suffers from a lack of knowledge on the mechanism and properties of the open charm particle production. Due to this, the heavy-ion programme of the NA61/SHINE experiment at the CERN SPS has been extended by precise measurements of charm hadrons with short lifetimes. A new Vertex Detector for measurements of the rare processes of open charm production in nucleus–nucleus collisions was designed to meet the challenges of track registration and high resolution in primary and secondary vertex reconstruction. A small-acceptance version of the vertex detector was installed in 2016 and tested with Pb + Pb collisions at 150 $$A\,\text{ GeV }\!/\!c$$ A GeV / c . It was also operating during the physics data taking on Xe + La and Pb + Pb collisions at 150 $$A\,\text{ GeV }\!/\!c$$ A GeV / c conducted in 2017 and 2018. This paper presents the detector design and construction, data calibration, event reconstruction, and analysis procedure.
Published: 2023
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9. Erratum to: Measurements of $$\pi ^\pm $$ π ± , $$K^\pm $$ K ± , p and $$\bar{p}$$ p ¯ spectra in $$^7$$ 7 Be+ $$^9$$ 9 Be collisions at beam momenta from 19A to 150A GeV/c with the NA61/SHINE spectrometer at the CERN SPS

Author: A. Acharya, H. Adhikary, A. Aduszkiewicz, K. K. Allison, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wojcik, O. Wyszyński, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Published: 2023
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10. $$K^{*}(892)^0$$ K ∗ ( 892 ) 0 meson production in inelastic p+p interactions at 40 and 80 $$\text{ GeV }\!/\!c$$ GeV / c beam momenta measured by NA61/SHINE at the CERN SPS

Author: A. Acharya, H. Adhikary, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, I. -C. Arsene, M. Baszczyk, D. Battagia, S. Bhosale, A. Blondel, M. Bogomilov, Y. Bondar, N. Bostan, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, M. Friend, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, A. Izvestnyy, S. R. Johnson, K. Kadija, N. Kargin, N. Karpushkin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, R. Kolesnikov, D. Kolev, A. Korzenev, J. Koshio, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, A. László, M. Lewicki, K. Łojek, G. Lykasov, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, A. Makhnev, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H. -J. Mathes, T. Matulewicz, V. Matveev, A. Matyja, G. L. Melkumov, A. Merzlaya, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, Y. Nagai, T. Nakadaira, M. Naskręt, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, K. Sakashita, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, T. S. Tveter, M. Unger, F. F. Valiev, D. Veberič, V. V. Vechernin, V. Volkov, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, A. Zviagina, R. Zwaska, and NA61/SHINE Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Measurements of $$K^{*}(892)^0$$ K ∗ ( 892 ) 0 resonance production via its $$K^{+}\pi ^{-}$$ K + π - decay mode in inelastic p+p collisions at beam momenta 40 and 80 $$\text{ GeV }\!/\!c$$ GeV / c ( $$\sqrt{s_{NN}}=8.8$$ s NN = 8.8 and 12.3 $$\text{ GeV }$$ GeV ) are presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The template method was used to extract the $$K^{*}(892)^0$$ K ∗ ( 892 ) 0 signal. Transverse momentum and rapidity spectra were obtained. The mean multiplicities of $$K^{*}(892)^0$$ K ∗ ( 892 ) 0 mesons were found to be $$(35.1 \pm 1.3 \mathrm {(stat)} \pm 3.6 \mathrm {(sys))} \cdot 10^{-3}$$ ( 35.1 ± 1.3 ( stat ) ± 3.6 ( sys ) ) · 10 - 3 at 40 $$\text{ GeV }\!/\!c$$ GeV / c and $$(58.3 \pm 1.9 \mathrm {(stat)} \pm 4.9 \mathrm {(sys))} \cdot 10^{-3}$$ ( 58.3 ± 1.9 ( stat ) ± 4.9 ( sys ) ) · 10 - 3 at 80 $$\text{ GeV }\!/\!c$$ GeV / c . The NA61/SHINE results are compared with the Epos1.99 and Hadron Resonance Gas models as well as with world data. The transverse mass spectra of $$K^{*}(892)^0$$ K ∗ ( 892 ) 0 mesons and other particles previously reported by NA61/SHINE were fitted within the Blast-Wave model. The transverse flow velocities are close to 0.1–0.2 of the speed of light and are significantly smaller than the ones determined in heavy nucleus-nucleus interactions at the same beam momenta.
Published: 2022
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11. $$K^{0}_{S}$$ K S 0 meson production in inelastic p+p interactions at 158 $$\text{ GeV }/c$$ GeV / c beam momentum measured by NA61/SHINE at the CERN SPS

Author: A. Acharya, H. Adhikary, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, Y. Bondar, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, Y. Nagai, M. Naskręt, V. Ozvenchuk, O. Panova, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, R. Zwaska, and NA61/SHINE Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The production of $$K^{0}_{S}$$ K S 0 mesons in inelastic p+p collisions at beam momentum 158 $$\text{ GeV }/c$$ GeV / c ( $$\sqrt{s_{NN}}=17.3$$ s NN = 17.3 $$\text{ GeV }$$ GeV ) was measured with the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron. Double-differential distributions were obtained in transverse momentum and rapidity. The mean multiplicity of $$K^{0}_{S}$$ K S 0 was determined to be $$0.162 \pm 0.001 (stat.) \pm 0.011 (sys.)$$ 0.162 ± 0.001 ( s t a t . ) ± 0.011 ( s y s . ) . The results on $$K^{0}_{S}$$ K S 0 production are compared with model predictions (EPOS 1.99, SMASH 2.0, PHSD and UrQMD 3.4 models) as well as with published world data.
Published: 2022
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12. Measurements of $${\Xi \left( 1530\right) ^{0}} $$ Ξ 1530 0 and $${\overline{\Xi }\left( 1530\right) ^{0}} $$ Ξ ¯ 1530 0 production in proton–proton interactions at $$\sqrt{s_{NN}}$$ s NN = 17.3 $$\text{ GeV }$$ GeV in the NA61/SHINE experiment

Author: A. Acharya, H. Adhikary, K. K. Allison, N. Amin, E. V. Andronov, T. Antićić, V. Babkin, Y. Balkova, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, M. Urbaniak, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, R. Zwaska, and NA61/SHINE Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Double-differential yields of $${\Xi \left( 1530\right) ^{0}} $$ Ξ 1530 0 and $${\overline{\Xi }\left( 1530\right) ^{0}} $$ Ξ ¯ 1530 0 resonances produced in p+p interactions were measured at a laboratory beam momentum of 158 $$\text{ GeV }\!/\!c$$ GeV / c . This measurement is the first of its kind in p+p interactions below LHC energies. It was performed at the CERN SPS by the NA61/SHINE collaboration. Double-differential distributions in rapidity and transverse momentum were obtained from a sample of $$26\times 10^6$$ 26 × 10 6 inelastic events. The spectra are extrapolated to full phase space resulting in mean multiplicity of $${\Xi \left( 1530\right) ^{0}} $$ Ξ 1530 0 ( $$6.73 \pm 0.25\pm 0.67)\times 10^{-4}$$ 6.73 ± 0.25 ± 0.67 ) × 10 - 4 and $${\overline{\Xi }\left( 1530\right) ^{0}} $$ Ξ ¯ 1530 0 ( $$2.71 \pm 0.18\pm 0.18)\times 10^{-4}$$ 2.71 ± 0.18 ± 0.18 ) × 10 - 4 . The rapidity and transverse momentum spectra and mean multiplicities were compared to predictions of string-hadronic and statistical model calculations.
Published: 2021
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13. Erratum to: Measurements of $${\Xi }{^-} $$ Ξ - and $$\overline{\Xi }{^+} $$ Ξ ¯ + production in proton–proton interactions at $$\sqrt{s_{NN}}$$ s NN = 17.3 $$\hbox {Ge}\hbox {V}$$ Ge in the NA61/SHINE experiment

Author: A. Aduszkiewicz, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wojcik, O. Wyszyński, E. D. Zimmerman, R. Zwaska, and NA61/SHINE Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Published: 2022
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14. Spectra and mean multiplicities of $$\pi ^{-}$$ π - in central $${}^{40}$$ 40 Ar+ $${}^{45}$$ 45 Sc collisions at 13A, 19A, 30A, 40A, 75A and 150 $$A\,\text{ Ge }\text{ V }\!/\!\textit{c}$$ A Ge V / c beam momenta measured by the NA61/SHINE spectrometer at the CERN SPS

Author: A. Acharya, H. Adhikary, K. K. Allison, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H. -J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, K. Wójcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The physics goal of the strong interaction program of the NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) is to study the phase diagram of hadronic matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents differential inclusive spectra of transverse momentum, transverse mass and rapidity of $$\pi ^{-}$$ π - mesons produced in central $${}^{40}$$ 40 Ar+ $${}^{45}$$ 45 Sc collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150 $$A\,\text{ Ge }\text{ V }\!/\!\textit{c}$$ A Ge V / c . Energy and system size dependence of parameters of these distributions – mean transverse mass, the inverse slope parameter of transverse mass spectra, width of the rapidity distribution and mean multiplicity – are presented and discussed. Furthermore, the dependence of the ratio of the mean number of produced pions to the mean number of wounded nucleons on the collision energy was derived. The results are compared to predictions of several models.
Published: 2021
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15. Measurements of multiplicity fluctuations of identified hadrons in inelastic proton–proton interactions at the CERN Super Proton Synchrotron

Author: A. Acharya, H. Adhikary, A. Aduszkiewicz, K. K. Allison, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, I. Pidhurskyi, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, K. Wojcik, O. Wyszyński, A. Zaitsev, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Measurements of multiplicity fluctuations of identified hadrons produced in inelastic p+p interactions at 31, 40, 80, and 158 $$\text {Ge}\text {V}/c$$ Ge / c beam momentum are presented. Three different measures of multiplicity fluctuations are used: the scaled variance $$\omega $$ ω and strongly intensive measures $$\Sigma $$ Σ and $$\Delta $$ Δ . These fluctuation measures involve second and first moments of joint multiplicity distributions. Data analysis is preformed using the Identity method which corrects for incomplete particle identification. Strongly intensive quantities are calculated in order to allow for a direct comparison to corresponding results on nucleus–nucleus collisions. The results for different hadron types are shown as a function of collision energy. A comparison with predictions of string-resonance Monte-Carlo models: Epos, Smash and Venus, is also presented.
Published: 2021
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16. Measurements of $$\pi ^\pm $$ π ± , $$K^\pm $$ K ± , p and $$\bar{p}$$ p ¯ spectra in $$^7$$ 7 Be+ $$^9$$ 9 Be collisions at beam momenta from 19A to 150A $${\mathrm{Ge} \mathrm{V}}\!/\!c$$ Ge V / c with the NA61/SHINE spectrometer at the CERN SPS

Author: A. Acharya, H. Adhikary, A. Aduszkiewicz, K. K. Allison, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, B. Kozłowski, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H. -J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wójcik, O. Wyszyński, E. D. Zimmerman, R. Zwaska, and NA61/SHINE Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) studies the onset of deconfinement in hadron matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $$\pi ^\pm $$ π ± , $$K^\pm $$ K ± , p and $$\bar{p}$$ p ¯ produced in the 20% most central $$^7$$ 7 Be+ $$^9$$ 9 Be collisions at beam momenta of 19A, 30A, 40A, 75A and 150A $${\mathrm{Ge} \mathrm{V}}\!/\!c$$ Ge V / c . The energy dependence of the $$K^\pm $$ K ± / $$\pi ^\pm $$ π ± ratios as well as of inverse slope parameters of the $$K^\pm $$ K ± transverse mass distributions are close to those found in inelastic p+p reactions. The new results are compared to the world data on p+p and Pb+Pb collisions as well as to predictions of the Epos, Urqmd, Ampt, Phsd and Smash models.
Published: 2021
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17. Two-particle correlations in azimuthal angle and pseudorapidity in central $$^7\hbox {Be}+{}^9\hbox {Be}$$ 7 Be + 9 Be collisions at the CERN Super Proton Synchrotron

Author: A. Aduszkiewicz, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wojcik, O. Wyszyński, E. D. Zimmerman, R. Zwaska, and NA61/SHINE Collaboration
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract A measurement of charged hadron pair correlations in two-dimensional $$\Delta \eta \Delta \phi $$ Δ η Δ ϕ space is presented. The analysis is based on total 30 million central Be + Be collisions observed in the NA61/SHINE detector at the CERN SPS for incident beam momenta of 19A, 30A, 40A, 75A, and 150A $$\text {Ge} \text {V}/c$$ Ge / c . Measurements were carried out for unlike-sign and like-sign charge hadron pairs independently. The $$C(\Delta \eta ,\Delta \phi )$$ C ( Δ η , Δ ϕ ) correlation functions were compared with results from a similar analysis on p + p interactions at similar beam momenta per nucleon. General trends of the back-to-back correlations are similar in central Be + Be collisions and p + p interactions, but are suppressed in magnitude due to the increased combinatorial background. Predictions from the Epos and UrQMD models are compared to the measurements. Evolution of an enhancement around $$(\Delta \eta ,\Delta \phi ) = (0,0)$$ ( Δ η , Δ ϕ ) = ( 0 , 0 ) with incident energy is observed in central Be + Be collisions. It is not predicted by both models and almost non-existing in proton–proton collisions at the same momentum per nucleon.
Published: 2020
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18. Measurements of $$\pi ^-$$ π - production in $$^7$$ 7 Be + $$^9$$ 9 Be collisions at beam momenta from 19A to 150 $$A\,\text{ GeV }\!/\!c$$ A GeV / c in the NA61/SHINE experiment at the CERN SPS

Author: A. Acharya, H. Adhikary, A. Aduszkiewicz, K. K. Allison, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wojcik, O. Wyszyński, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The NA61/SHINE collaboration studies at the CERN Super Proton Synchrotron (SPS) the onset of deconfinement in hadronic matter by the measurement of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra and mean multiplicities of $$\pi ^{-}$$ π - mesons produced in the 5% most central $$^7$$ 7 Be + $$^9$$ 9 Be collisions at beam momenta of 19A, 30A, 40A, 75A and 150 $$A\,\text{ GeV }\!/\!c$$ A GeV / c obtained by the so-called $$h^-$$ h - method which does not require any particle identification. The shape of the transverse mass spectra differs from the shapes measured in central Pb + Pb collisions and inelastic p+p interactions. The normalized width of the rapidity distribution decreases with increasing collision energy and is in between the results for inelastic nucleon–nucleon and central Pb + Pb collisions. The mean multiplicity of pions per wounded nucleon in central $$^7$$ 7 Be + $$^9$$ 9 Be collisions is close to that in central Pb + Pb collisions up to 75 $$A\,\text{ GeV }\!/\!c$$ A GeV / c . However, at the top SPS energy the result lies between those for nucleon–nucleon and Pb + Pb interactions. The results are discussed in the context of predictions for the onset of deconfinement at the CERN SPS collision energies.
Published: 2020
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19. Measurements of $${\Xi }{^-} $$ Ξ - and $$\overline{\Xi }{^+} $$ Ξ ¯ + production in proton–proton interactions at $$\sqrt{s_{NN}}$$ s NN = 17.3 $$\hbox {Ge}\hbox {V}$$ Ge in the NA61/SHINE experiment

Author: A. Aduszkiewicz, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wojcik, O. Wyszyński, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The production of $$\Xi (1321)^{-}$$ Ξ ( 1321 ) - and $$\overline{\Xi }(1321)^{+}$$ Ξ ¯ ( 1321 ) + hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 $$\hbox {Ge}\hbox {V}\!/\!c$$ Ge / c . Double differential distributions in rapidity $${y}$$ y and transverse momentum $$p_{T}$$ p T are obtained from a sample of 33M inelastic events. They allow to extrapolate the spectra to full phase space and to determine the mean multiplicity of both $${\Xi }{^-} $$ Ξ - and $$\overline{\Xi }{^+} $$ Ξ ¯ + . The rapidity and transverse momentum spectra are compared to transport model predictions. The $${\Xi }{^-} $$ Ξ - mean multiplicity in inelastic p+p interactions at 158 $$\hbox {Ge}\hbox {V}\!/\!c$$ Ge / c is used to quantify the strangeness enhancement in A+A collisions at the same centre-of-mass energy per nucleon pair.
Published: 2020
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20. $$K^{*}(892)^0$$ K∗(892)0 meson production in inelastic p+p interactions at 158 $$\text{ Ge }\text{ V }\!/\!c$$ GeV/c beam momentum measured by NA61/SHINEat the CERN SPS

Author: NA61/SHINE Collaboration, A. Aduszkiewicz, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, E. Kaptur, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, B. Łysakowski, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, D. Manić, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, E. Richter-Wąs, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, O. Wyszyński, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The measurement of $$K^{*}(892)^0$$ K∗(892)0 resonance production via its $$K^{+}\pi ^{-}$$ K+π- decay mode in inelastic p+p collisions at beam momentum 158 $$\text{ Ge }\text{ V }\!/\!c$$ GeV/c ($$\sqrt{s_{NN}}=17.3$$ sNN=17.3 $$\text{ Ge }\text{ V }$$ GeV ) is presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The template method was used to extract the $$K^{*}(892)^0$$ K∗(892)0 signal and double-differential transverse momentum and rapidity spectra were obtained. The full phase-space mean multiplicity of $$K^{*}(892)^0$$ K∗(892)0 mesons was found to be $$(78.44 \pm 0.38 \mathrm {(stat)} \pm 6.0 \mathrm {(sys)) \cdot 10^{-3}}$$ (78.44±0.38(stat)±6.0(sys))·10-3 . The NA61/SHINEresults are compared with the Epos1.99 and Hadron Resonance Gas models as well as with world data from p+p and nucleus–nucleus collisions.
Published: 2020
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21. Measurement of $$\phi $$ ϕ meson production in $$p + p$$ p+p interactions at 40, 80 and $$158 \, \hbox {GeV}/c$$ 158GeV/c with the NA61/SHINE spectrometer at the CERN SPS

Author: A. Aduszkiewicz, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, E. Kaptur, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, K. Kowalik, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, B. Łysakowski, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, D. Manić, A. Marchionni, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, M. Pavin, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, E. Richter-Wąs, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, A. Wojtaszek-Szwarc, O. Wyszyński, L. Zambelli, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Results on $$\phi $$ ϕ meson production in inelastic $$p + p$$ p+p collisions at CERN SPS energies are presented. They are derived from data collected by the NA61/SHINE fixed target experiment, by means of invariant mass spectra fits in the $$\phi \rightarrow K^+ K^- $$ ϕ→K+K- decay channel. They include the first ever measured double differential spectra of $$\phi $$ ϕ mesons as a function of rapidity $$y$$ y and transverse momentum $$p_{\text {T}}$$ pT for proton beam momenta of $$80 \, \hbox {GeV}/c$$ 80GeV/c and $$158 \, \hbox {GeV}/c$$ 158GeV/c , as well as single differential spectra of $$y$$ y or $$p_{\text {T}}$$ pT for beam momentum of $$40 \, \hbox {GeV}/c$$ 40GeV/c . The corresponding total $$\phi $$ ϕ yields per inelastic $$p + p$$ p+p event are obtained. These results are compared with existing data on $$\phi $$ ϕ meson production in $$p + p$$ p+p collisions. The comparison shows consistency but superior accuracy of the present measurements. The emission of $$\phi $$ ϕ mesons in $$p + p$$ p+p reactions is confronted with that occurring in $$\mathrm{Pb} + \mathrm{Pb}$$ Pb+Pb collisions, and the experimental results are compared with model predictions. It appears that none of the considered models can properly describe all the experimental observations.
Published: 2020
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22. Rapidity distributions of Z = 1 isotopes and the nuclear symmetry energy from Sn+Sn collisions with radioactive beams at 270 MeV/nucleon

Author: M. Kaneko, T. Murakami, T. Isobe, M. Kurata-Nishimura, A. Ono, N. Ikeno, J. Barney, G. Cerizza, J. Estee, G. Jhang, J.W. Lee, W.G. Lynch, C. Santamaria, C.Y. Tsang, M.B. Tsang, R. Wang, D.S. Ahn, L. Atar, T. Aumann, H. Baba, K. Boretzky, J. Brzychczyk, N. Chiga, N. Fukuda, I. Gašparić, B. Hong, A. Horvat, T. Ichihara, K. Ieki, N. Inabe, Y.J. Kim, T. Kobayashi, Y. Kondo, P. Lasko, H.S. Lee, Y. Leifels, J. Łukasik, J. Manfredi, A.B. McIntosh, P. Morfouace, T. Nakamura, N. Nakatsuka, S. Nishimura, R. Olsen, H. Otsu, P. Pawłowski, K. Pelczar, D. Rossi, H. Sakurai, H. Sato, H. Scheit, R. Shane, Y. Shimizu, H. Simon, T. Sumikama, D. Suzuki, H. Suzuki, H. Takeda, S. Tangwancharoen, Y. Togano, H. Törnqvist, Z. Xiao, S.J. Yennello, J. Yurkon, and Y. Zhang
Subjects: Heavy radioactive isotope collisions, Cluster productions, Nuclear symmetry energy, Antisymmetrized molecular dynamics, Physics, QC1-999
Abstract: The rapidity distributions of hydrogen isotopes emitted from central collisions of neutron-rich 132Sn+124Sn and neutron-deficient 108Sn+112Sn systems at 270 MeV/nucleon were investigated at RIKEN-RIBF. The data are compared with antisymmetrized molecular dynamics (AMD) calculations and the rapidity distributions can be reproduced after adjusting the in-medium nucleon-nucleon cross sections. The double ratios between the two reaction systems taken for the relative yields of deuteron to proton (d/p) and triton to proton (t/p) are further examined in the midrapidity domain, where the adjustments in the AMD calculations do not affect much on them. The d/p and t/p double ratios at midrapidity agree well with the ratio of the system neutron numbers and its squared value, respectively, and the rapidity dependence of these double ratios is consistent with a picture of partial mixing of colliding nuclei. By comparing with the AMD model which shows a strong symmetry energy dependence of the t/p double ratio, the experimental result in the midrapidity domain favors the calculation with a symmetry-energy slope parameter around L=46 MeV rather than L=108 MeV.
Published: 2021
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23. Erratum to: Measurements of $$\pi ^-$$ π - production in $$^7\hbox {Be}+{}^9\hbox {Be}$$ 7 Be + 9 Be collisions at beam momenta from 19A to 150 $$A\,\text{ Ge } \text{ V }/c$$ A Ge V / c in the NA61/SHINE experiment at the CERN SPS

Author: A. Acharya, H. Adhikary, A. Aduszkiewicz, K. K. Allison, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B. A. Popov, B. Porfy, M. Posiadała-Zezula, D. S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F. F. Valiev, D. Veberič, V. V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wojcik, O. Wyszyński, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: In this erratum, we clarify the details of the comparison of
Published: 2021
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24. Measurements of $$\pi ^\pm $$ π± , $$K^\pm $$ K± and proton double differential yields from the surface of the T2K replica target for incoming 31 GeV/c protons with the NA61/SHINE spectrometer at the CERN SPS

Author: N. Abgrall, A. Aduszkiewicz, E. V. Andronov, T. Antićić, B. Baatar, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, S. A. Bunyatov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, T. Czopowicz, A. Damyanova, N. Davis, M. Deveaux, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, A. Ereditato, G. A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, T. Hasegawa, A. E. Hervé, S. N. Igolkin, S. Ilieva, A. Ivashkin, S. R. Johnson, K. Kadija, E. Kaptur, N. Kargin, E. Kashirin, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, T. Kobayashi, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, K. Kowalik, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, K. Łojek, B. Łysakowski, V. V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A. I. Malakhov, D. Manić, A. Marchionni, A. Marcinek, A. D. Marino, K. Marton, H. J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, G. B. Mills, S. Morozov, S. Mrówczyński, Y. Nagai, T. Nakadaira, M. Naskręt, K. Nishikawa, V. Ozvenchuk, V. Paolone, M. Pavin, O. Petukhov, C. Pistillo, R. Płaneta, P. Podlaski, B. A. Popov, M. Posiadała-Zezula, D. S. Prokhorova, S. Puławski, J. Puzović, W. Rauch, M. Ravonel, R. Renfordt, E. Richter-Wąs, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, A. Rustamov, M. Rybczynski, A. Rybicki, A. Sadovsky, K. Sakashita, K. Schmidt, T. Sekiguchi, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Shibata, M. Słodkowski, A. Snoch, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, M. Tada, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, F. F. Valiev, D. Veberič, V. V. Vechernin, M. Walewski, A. Wickremasinghe, Z. Włodarczyk, A. Wojtaszek-Szwarc, O. Wyszyński, L. Zambelli, E. D. Zimmerman, R. Zwaska, L. Berns, G. A. Fiorentini, M. Friend, M. Hartz, T. Vladisavljevic, and M. Yu
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Measurements of the $$\pi ^\pm $$ π± , $$K^\pm $$ K± , and proton double differential yields emitted from the surface of the 90-$$\hbox {cm}$$ cm -long carbon target (T2K replica) were performed for the incoming $$31\,$$ 31 $$\hbox {GeV}\!/\!c$$ GeV/c protons with the NA61/SHINE spectrometer at the CERN SPS using data collected during 2010 run. The double differential $$\pi ^\pm $$ π± yields were measured with increased precision compared to the previously published NA61/SHINE results, while the $$K^\pm $$ K± and proton yields were obtained for the first time. A strategy for dealing with the dependence of the results on the incoming proton beam profile is proposed. The purpose of these measurements is to reduce significantly the (anti)neutrino flux uncertainty in the T2K long-baseline neutrino experiment by constraining the production of (anti)neutrino ancestors coming from the T2K target.
Published: 2019
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25. Symmetry energy investigation with pion production from Sn+Sn systems

Author: G. Jhang, J. Estee, J. Barney, G. Cerizza, M. Kaneko, J.W. Lee, W.G. Lynch, T. Isobe, M. Kurata-Nishimura, T. Murakami, C.Y. Tsang, M.B. Tsang, R. Wang, D.S. Ahn, L. Atar, T. Aumann, H. Baba, K. Boretzky, J. Brzychczyk, N. Chiga, N. Fukuda, I. Gasparic, B. Hong, A. Horvat, K. Ieki, N. Inabe, Y.J. Kim, T. Kobayashi, Y. Kondo, P. Lasko, H.S. Lee, Y. Leifels, J. Łukasik, J. Manfredi, A.B. McIntosh, P. Morfouace, T. Nakamura, N. Nakatsuka, S. Nishimura, R. Olsen, H. Otsu, P. Pawłowski, K. Pelczar, D. Rossi, H. Sakurai, C. Santamaria, H. Sato, H. Scheit, R. Shane, Y. Shimizu, H. Simon, A. Snoch, A. Sochocka, Z. Sosin, T. Sumikama, H. Suzuki, D. Suzuki, H. Takeda, S. Tangwancharoen, H. Toernqvist, Y. Togano, Z.G. Xiao, S.J. Yennello, J. Yurkon, Y. Zhang, Maria Colonna, Dan Cozma, Paweł Danielewicz, Hannah Elfner, Natsumi Ikeno, Che Ming Ko, Justin Mohs, Dmytro Oliinychenko, Akira Ono, Jun Su, Yong Jia Wang, Hermann Wolter, Jun Xu, Ying-Xun Zhang, and Zhen Zhang
Subjects: Physics, QC1-999
Abstract: In the past two decades, pions created in the high density regions of heavy ion collisions have been predicted to be sensitive at high densities to the symmetry energy term in the nuclear equation of state, a property that is key to our understanding of neutron stars. In a new experiment designed to study the symmetry energy, the multiplicities of negatively and positively charged pions have been measured with high accuracy for central 132Sn+124Sn, 112Sn+124Sn, and 108Sn+112Sn collisions at E/A=270 MeV with the SπRIT Time Projection Chamber. While individual pion multiplicities are measured to 4% accuracy, those of the charged pion multiplicity ratios are measured to 2% accuracy. We compare these data to predictions from seven major transport models. The calculations reproduce qualitatively the dependence of the multiplicities and their ratios on the total neutron and proton number in the colliding systems. However, the predictions of the transport models from different codes differ too much to allow extraction of reliable constraints on the symmetry energy from the data. This finding may explain previous contradictory conclusions on symmetry energy constraints obtained from pion data in Au+Au system. These new results call for still better understanding of the differences among transport codes, and new observables that are more sensitive to the density dependence of the symmetry energy.
Published: 2021
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26. The percolation phase transition and statistical multifragmentation in finite systems

Author: T. Pietrzak, A.S. Botvina, J. Brzychczyk, N. Buyukcizmeci, A. Le Fèvre, J. Łukasik, P. Pawłowski, C. Sfienti, W. Trautmann, and A. Wieloch
Subjects: Heavy ion collisions, Percolation theory, Statistical multifragmentation models, Physics, QC1-999
Abstract: The cumulant ratios up to fourth order of the Z distributions of the largest fragment in spectator fragmentation following 107,124Sn+Sn and 124La+Sn collisions at 600 MeV/nucleon have been investigated. They are found to exhibit the signatures of a second-order phase transition established with cubic bond percolation and previously observed in the ALADIN experimental data for fragmentation of 197Au projectiles at similar energies. The deduced pseudocritical points are found to be only weakly dependent on the A/Z ratio of the fragmenting spectator source. The same holds for the corresponding chemical freeze-out temperatures of close to 6 MeV.The experimental cumulant distributions are quantitatively reproduced with the Statistical Multifragmentation Model and parameters used to describe the experimental fragment multiplicities, isotope distributions and their correlations with impact-parameter related observables in these reactions. The characteristic coincidence of the zero transition of the skewness with the minimum of the kurtosis excess appears to be a generic property of statistical models and is found to coincide with the maximum of the heat capacity in the canonical thermodynamic fragmentation model.
Published: 2020
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27. Measurements of $$\pi ^\pm $$ π± , K$$^\pm $$ ± , p and $${\bar{\text {p}}}$$ p¯ spectra in proton-proton interactions at 20, 31, 40, 80 and 158 $$\text{ GeV }/c$$ GeV/c with the NA61/SHINE spectrometer at the CERN SPS

Author: A. Aduszkiewicz, Y. Ali, E. Andronov, T. Antićić, B. Baatar, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, J. Brzychczyk, S. A. Bunyatov, O. Busygina, H. Cherif, M. Ćirković, T. Czopowicz, A. Damyanova, N. Davis, H. Dembinski, M. Deveaux, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, A. Ereditato, G. A. Feofilov, Z. Fodor, C. Francois, A. Garibov, M. Gaździcki, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, A. E. Hervé, J. Hylen, S. Igolkin, A. Ivashkin, S. R. Johnson, K. Kadija, E. Kaptur, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, N. Knezević, V. I. Kolesnikov, D. Kolev, V. P. Kondratiev, A. Korzenev, V. Kovalenko, K. Kowalik, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, M. Lewicki, B. Lundberg, V. V. Lyubushkin, B. Łysakowski, M. Maćkowiak-Pawłowska, B. Maksiak, A. I. Malakhov, D. Manić, A. Marchionni, A. Marcinek, A. D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. Merzlaya, B. Messerly, Ł. Mik, G. B. Mills, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, M. Pavin, O. Petukhov, C. Pistillo, R. Płaneta, P. Podlaski, B. A. Popov, M. Posiadała, S. Puławski, J. Puzović, R. Rameika, W. Rauch, M. Ravonel, R. Renfordt, E. Richter-Wąs, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, A. Rustamov, M. Rybczynski, A. Rybicki, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Seryakov, P. Seyboth, M. Słodkowski, A. Snoch, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, M. Szuba, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Veberič, V. V. Vechernin, G. Vesztergombi, L. Vinogradov, M. Walewski, A. Wickremasinghe, C. Wilkinson, Z. Włodarczyk, A. Wojtaszek-Szwarc, O. Wyszyński, L. Zambelli, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Measurements of inclusive spectra and mean multiplicities of $$\pi ^\pm $$ π± , K$$^\pm $$ ± , p and $${\bar{\text {p}}}$$ p¯ produced in inelastic p + p interactions at incident projectile momenta of 20, 31, 40, 80 and 158 $$\text{ GeV }/c$$ GeV/c ($$\sqrt{s} = $$ s= 6.3, 7.7, 8.8, 12.3 and 17.3 $$\text{ GeV }$$ GeV , respectively) were performed at the CERN Super Proton Synchrotron using the large acceptance NA61/SHINE hadron spectrometer. Spectra are presented as function of rapidity and transverse momentum and are compared to predictions of current models. The measurements serve as the baseline in the NA61/SHINE study of the properties of the onset of deconfinement and search for the critical point of strongly interacting matter.
Published: 2017
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28. Measurement of meson resonance production in $$\pi ^-+$$ π - + C interactions at SPS energies

Author: A. Aduszkiewicz, Y. Ali, E. V. Andronov, T. Antićić, B. Baatar, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, J. Brzychczyk, S. A. Bunyatov, O. Busygina, H. Cherif, M. Ćirković, T. Czopowicz, A. Damyanova, N. Davis, H. Dembinski, M. Deveaux, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, A. Ereditato, S. Faas, G. A. Feofilov, Z. Fodor, C. Francois, X. Garrido, A. Garibov, M. Gaździcki, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, A. E. Hervé, J. Hylen, S. N. Igolkin, A. Ivashkin, S. R. Johnson, K. Kadija, E. Kaptur, M. Kiełbowicz, V. A. Kireyeu, V. Klochkov, V. I. Kolesnikov, D. Kolev, A. Korzenev, V. N. Kovalenko, K. Kowalik, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T. V. Lazareva, M. Lewicki, B. Lundberg, B. Łysakowski, V. V. Lyubushkin, I. C. Mariş, M. Maćkowiak-Pawłowska, B. Maksiak, A. I. Malakhov, D. Manić, A. Marchionni, A. Marcinek, A. D. Marino, K. Marton, H. -J. Mathes, T. Matulewicz, V. Matveev, G. L. Melkumov, A. O. Merzlaya, B. Messerly, Ł. Mik, G. B. Mills, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, M. Pavin, O. Petukhov, C. Pistillo, R. Płaneta, P. Podlaski, B. A. Popov, M. Posiadała, S. Puławski, J. Puzović, R. Rameika, W. Rauch, M. Ravonel, R. Renfordt, E. Richter-Wąs, D. Röhrich, E. Rondio, M. Roth, B. T. Rumberger, M. Ruprecht, A. Rustamov, M. Rybczynski, A. Rybicki, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A. Yu. Seryakov, P. Seyboth, M. Słodkowski, A. Snoch, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, M. Szuba, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, F. F. Valiev, D. Veberič, V. V. Vechernin, M. Walewski, A. Wickremasinghe, C. Wilkinson, Z. Włodarczyk, A. Wojtaszek-Szwarc, O. Wyszyński, L. Zambelli, E. D. Zimmerman, and R. Zwaska
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract We present measurements of $$\rho ^0$$ ρ 0 , $$\omega $$ ω and K $$^{*0}$$ ∗ 0 spectra in $$\pi ^{-} + $$ π - + C production interactions at 158 $$\text{ GeV }{/}\text{ c }$$ GeV / c and $$\rho ^0$$ ρ 0 spectra at 350 $$\text{ GeV }{/}\text{ c }$$ GeV / c using the NA61/SHINE spectrometer at the CERN SPS. Spectra are presented as a function of the Feynman’s variable $$x_\text {F}$$ x F in the range $$0< x_\text {F} < 1$$ 0 < x F < 1 and $$0< x_\text {F} < 0.5$$ 0 < x F < 0.5 for 158 and 350 $$\text{ GeV }{/}\text{ c }$$ 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.
Published: 2017
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29. Isoscaling in central Sn+Sn collisions at 270 MeV/u

Author: J. W. Lee, M. B. Tsang, C. Y. Tsang, R. Wang, J. Barney, J. Estee, T. Isobe, M. Kaneko, M. Kurata-Nishimura, W. G. Lynch, T. Murakami, A. Ono, S. R. Souza, D. S. Ahn, L. Atar, T. Aumann, H. Baba, K. Boretzky, J. Brzychczyk, G. Cerizza, N. Chiga, N. Fukuda, I. Gasparic, B. Hong, A. Horvat, K. Ieki, N. Ikeno, N. Inabe, G. Jhang, Y. J. Kim, T. Kobayashi, Y. Kondo, P. Lasko, H. S. Lee, Y. Leifels, J. Łukasik, J. Manfredi, A. B. McIntosh, P. Morfouace, T. Nakamura, N. Nakatsuka, S. Nishimura, H. Otsu, P. Pawłowski, K. Pelczar, D. Rossi, H. Sakurai, C. Santamaria, H. Sato, H. Scheit, R. Shane, Y. Shimizu, H. Simon, A. Snoch, A. Sochocka, T. Sumikama, H. Suzuki, D. Suzuki, H. Takeda, S. Tangwancharoen, Y. Togano, Z. G. Xiao, S. J. Yennello, Y. Zhang, and (the S π RIT collaboration)
Subjects: Nuclear Theory (nucl-th), Nuclear and High Energy Physics, Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment, Heavy radioactive isotope collisions, Cluster productions, Nuclear symmetry energy, Antisymmetrized molecular dynamics
Abstract: Experimental information on fragment emissions is important in understanding the dynamics of nuclear collisions and in the development of transport model simulating heavy-ion collisions. The composition of complex fragments emitted in the heavy-ion collisions can be explained by statistical models, which assume that thermal equilibrium is achieved at collision energies below 100 MeV/u. Our new experimental data together with theoretical analyses for light particles from Sn+Sn collisions at 270 MeV/u, suggest that the hypothesis of thermal equilibrium breaks down for particles emitted with high transfer momentum. To inspect the system's properties in such limit, the scaling features of the yield ratios of particles from two systems, a neutron-rich system of ${}^{132}\mathrm{Sn}+{}^{124}\mathrm{Sn}$ and a nearly symmetric system of ${}^{108}\mathrm{Sn}+{}^{112}\mathrm{Sn}$, are examined in the framework of the statistical multifragmentation model and the antisymmetrized molecular dynamics model. The isoscaling from low energy particles agree with both models. However the observed breakdown of isoscaling for particles with high transverse momentum cannot be explained by the antisymmetrized molecular dynamics model.
Published: 2022
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30. Measurements of multiplicity fluctuations of identified hadrons in inelastic proton–proton interactions at the CERN Super Proton Synchrotron

Author: V. Babkin, M. Ravonel, H. J. Mathes, Miroslaw Marek Kielbowicz, Markus Roth, V. Paolone, Antoni Aduszkiewicz, A. Blondel, O. Busygina, V. I. Kolesnikov, E. Rondio, H. Ströbele, E. D. Zimmerman, M. Lewicki, J. Cybowska, D. Tefelski, W. Bryliński, K. Wojcik, N. Kargin, V. A. Kireyeu, A. Bravar, Vitalii Ozvenchuk, M. Kuich, F.F. Valiev, A. Sadovsky, Ł. Mik, A. Marcinek, Rainer Arno Ernst Renfordt, O. Golosov, O. Petukhov, Z. Fodor, A. Zaitsev, Andras Laszlo, A. Damyanova, M. Rumyantsev, O. Wyszyński, P. Staszel, V. Tereshchenko, Darko Veberič, M. Ćirković, Alexander Malakhov, Michal Koziel, M. Posiadala-Zezula, Alexey Kurepin, Dag Larsen, A. Rustamov, M. Słodkowski, J. Brzychczyk, Ralph Engel, Maciej Rybczyński, T. Antičić, S. R. Johnson, B. Maksiak, H. Adhikary, T. Susa, D. S. Prokhorova, D. Kolev, A. Korzenev, L. Fields, A. Dmitriev, K. K. Allison, A. V. Brandin, Dieter Røhrich, B. A. Popov, I. Pidhurskyi, D. Pszczel, Viktor Matveev, B. Messerly, Ludwik Turko, P. Dorosz, H. Cherif, B. Porfy, B. T. Rumberger, T. Matulewicz, A. Taranenko, Z. Majka, Andrzej Rybicki, M. Deliyergiyev, Katarzyna Grebieszkow, S. Puławski, P. Seyboth, A. O. Merzlaya, J. Stepaniak, Marek Gaździcki, A. Haesler, Vladimir Vechernin, S. V. Morozov, S. Kowalski, I. Selyuzhenkov, A. Wickremasinghe, G. A. Feofilov, K. Schmidt, N. Davis, K. Łojek, S. Sadhu, V. Klochkov, Vladimir Kovalenko, R. Zwaska, Kreso Kadija, Wojciech Kucewicz, M. Buryakov, Evgeny Andronov, M. Maćkowiak-Pawłowska, K. Marton, E. Kashirin, A. Yu. Seryakov, Ralf Ulrich, Mateusz Baszczyk, M.B. Golubeva, P. Podlaski, Adam Bzdak, M. Unger, J. Puzović, R. Tsenov, V. V. Lyubushkin, G. L. Melkumov, A. D. Marino, A. Tefelska, M. Strikhanov, S. Ilieva, Alberica Toia, V.M. Golovatyuk, A. Ivashkin, Mate Csanad, Tatiana Lazareva, Michael Deveaux, R. Płaneta, M. Naskręt, M. Bogomilov, G. Stefanek, F.F. Guber, S. Bhosale, Tobiasz Czopowicz, J. Dumarchez, A. Acharya, D. Uzhva, Alexey Krasnoperov, Y. Nagai, S.N. Igolkin, W. Dominik, and A. Garibov
Subjects: Physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), Proton, 010308 nuclear & particles physics, Hadron, Multiplicity (mathematics), 01 natural sciences, Super Proton Synchrotron, Omega, Particle identification, Momentum, Nuclear physics, 0103 physical sciences, 010306 general physics, Engineering (miscellaneous)
Abstract: Measurements of multiplicity fluctuations of identified hadrons produced in inelastic p+p interactions at 31, 40, 80, and 158 $$\text {Ge}\text {V}/c$$ Ge / c beam momentum are presented. Three different measures of multiplicity fluctuations are used: the scaled variance $$\omega $$ ω and strongly intensive measures $$\Sigma $$ Σ and $$\Delta $$ Δ . These fluctuation measures involve second and first moments of joint multiplicity distributions. Data analysis is preformed using the Identity method which corrects for incomplete particle identification. Strongly intensive quantities are calculated in order to allow for a direct comparison to corresponding results on nucleus–nucleus collisions. The results for different hadron types are shown as a function of collision energy. A comparison with predictions of string-resonance Monte-Carlo models: Epos, Smash and Venus, is also presented.
Published: 2021
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31. Spectra and mean multiplicities of $$\pi ^{-}$$ in central $${}^{40}$$Ar+$${}^{45}$$Sc collisions at 13A, 19A, 30A, 40A, 75A and 150$$A\,\text{ Ge }\text{ V }\!/\!\textit{c}$$ beam momenta measured by the NA61/SHINE spectrometer at the CERN SPS

Author: Andrzej Rybicki, Vitalii Ozvenchuk, M. Kuich, B. Maksiak, Alexey Kurepin, Katarzyna Grebieszkow, A. Sadovsky, Z. Majka, M. Unger, Miroslaw Marek Kielbowicz, M. Słodkowski, A. Marcinek, D. Tefelski, M. Posiadala-Zezula, D. Uzhva, A. Haesler, Vladimir Vechernin, V. I. Kolesnikov, J. Cybowska, Alexey Krasnoperov, P. Staszel, M. Naskręt, M. Bogomilov, B. Messerly, A. Rustamov, S. Kowalski, P. Seyboth, R. Tsenov, A. D. Marino, H. Adhikary, A. O. Merzlaya, D. Kolev, G. Stefanek, O. Busygina, M. Lewicki, K. Marton, A. Blondel, F.F. Guber, W. Bryliński, E. Rondio, A. Garibov, M. Maćkowiak-Pawłowska, S. Puławski, N. Davis, A. Ivashkin, Mateusz Baszczyk, A. Yu. Seryakov, V. Babkin, H. Ströbele, B. Porfy, P. Podlaski, B. T. Rumberger, A. Wickremasinghe, Ł. Mik, Kreso Kadija, M. Buryakov, S. Sadhu, Rainer Arno Ernst Renfordt, K. Wojcik, D. S. Prokhorova, S. Bhosale, Ludwik Turko, P. Dorosz, N. Kargin, A. Bravar, V. Tereshchenko, V. Paolone, H. J. Mathes, Tobiasz Czopowicz, Marek Gaździcki, J. Puzović, J. Brzychczyk, Alexander Malakhov, Michael Deveaux, Ralph Engel, Alberica Toia, V.M. Golovatyuk, Markus Roth, J. Dumarchez, V. A. Kireyeu, T. Susa, Adam Bzdak, Dieter Røhrich, A. Dmitriev, O. Petukhov, M. Rumyantsev, O. Wyszyński, D. Pszczel, A. Acharya, Ralf Ulrich, M. Ravonel, A. Tefelska, B. A. Popov, E. D. Zimmerman, S. Ilieva, Y. Nagai, A. V. Brandin, M. Strikhanov, K. K. Allison, M. Ćirković, H. Cherif, I. Selyuzhenkov, B. Kozłowski, O. Golosov, A. Damyanova, Mate Csanad, S. V. Morozov, A. Zaitsev, Andras Laszlo, I. Pidhurskyi, Tatiana Lazareva, Wojciech Kucewicz, Michal Koziel, E. Kashirin, Evgeny Andronov, G. A. Feofilov, R. Płaneta, M.B. Golubeva, Viktor Matveev, V. V. Lyubushkin, G. L. Melkumov, Maciej Rybczyński, T. Antičić, F.F. Valiev, J. Stepaniak, Darko Veberič, K. Schmidt, K. Łojek, S.N. Igolkin, W. Dominik, M. Deliyergiyev, S. R. Johnson, A. Korzenev, L. Fields, T. Matulewicz, A. Taranenko, Z. Fodor, Dag Larsen, V. Klochkov, Vladimir Kovalenko, and R. Zwaska
Subjects: Physics, Physics and Astronomy (miscellaneous), Meson, 010308 nuclear & particles physics, Hadron, Inverse, 01 natural sciences, Super Proton Synchrotron, Nuclear physics, 0103 physical sciences, Transverse mass, Rapidity, Production (computer science), 010306 general physics, Nucleon, Engineering (miscellaneous)
Abstract: The physics goal of the strong interaction program of the NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) is to study the phase diagram of hadronic matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents differential inclusive spectra of transverse momentum, transverse mass and rapidity of $$\pi ^{-}$$ π - mesons produced in central$${}^{40}$$ 40 Ar+$${}^{45}$$ 45 Sc collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150$$A\,\text{ Ge }\text{ V }\!/\!\textit{c}$$ A Ge V / c . Energy and system size dependence of parameters of these distributions – mean transverse mass, the inverse slope parameter of transverse mass spectra, width of the rapidity distribution and mean multiplicity – are presented and discussed. Furthermore, the dependence of the ratio of the mean number of produced pions to the mean number of wounded nucleons on the collision energy was derived. The results are compared to predictions of several models.
Published: 2021
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32. Erratum to: Measurements of $$\pi ^-$$ production in $$^7\hbox {Be}+{}^9\hbox {Be}$$ collisions at beam momenta from 19A to 150$$A\,\text{ Ge } \text{ V }/c$$ in the NA61/SHINE experiment at the CERN SPS

Author: H. Cherif, D. Kolev, B. Maksiak, D. Pszczel, Z. Majka, M. Ravonel, A. O. Merzlaya, V. Tereshchenko, F.F. Valiev, Dieter Røhrich, B. Porfy, B. T. Rumberger, Maciej Rybczyński, T. Antičić, E. Rondio, K. Wojcik, D. Uzhva, Darko Veberič, N. Kargin, Alexey Krasnoperov, A. Tefelska, V. A. Kireyeu, Z. Fodor, J. Stepaniak, Andras Laszlo, Miroslaw Marek Kielbowicz, A. V. Brandin, Ralf Ulrich, K. Łojek, Adam Bzdak, S. Puławski, O. Golosov, M. Strikhanov, Michal Koziel, S. Ilieva, Dag Larsen, A. Marcinek, S.N. Igolkin, J. Brzychczyk, H. Ströbele, O. Busygina, M. Posiadala-Zezula, W. Dominik, G. A. Feofilov, Ralph Engel, A. Wickremasinghe, Alberica Toia, K. K. Allison, M. Lewicki, T. Susa, V.M. Golovatyuk, Ludwik Turko, S. Sadhu, V. Paolone, Mate Csanad, W. Bryliński, A. Dmitriev, P. Dorosz, Wojciech Kucewicz, S. V. Morozov, Rainer Arno Ernst Renfordt, E. D. Zimmerman, Tatiana Lazareva, P. Seyboth, H. J. Mathes, B. A. Popov, A. Blondel, E. Kashirin, P. Staszel, M. Słodkowski, A. Sadovsky, N. Davis, Antoni Aduszkiewicz, R. Płaneta, Ł. Mik, St Mrówczyński, I. Selyuzhenkov, Kreso Kadija, V. V. Lyubushkin, Evgeny Andronov, A. Acharya, G. L. Melkumov, K. Schmidt, A. Rustamov, K. Marton, H. Adhikary, J. Puzović, M.B. Golubeva, A. Yu. Seryakov, B. Messerly, Katarzyna Grebieszkow, S. R. Johnson, Y. Nagai, M. Buryakov, A. Korzenev, L. Fields, Zbigniew Wlodarczyk, O. Petukhov, V. Klochkov, Vladimir Kovalenko, R. Zwaska, A. Damyanova, M. Ćirković, T. Matulewicz, A. Taranenko, Viktor Matveev, M. Deliyergiyev, Vitalii Ozvenchuk, D. S. Prokhorova, M. Kuich, Alexey Kurepin, Andrzej Rybicki, M. Unger, Michael Deveaux, S. Bhosale, A. Ivashkin, Tobiasz Czopowicz, J. Dumarchez, F.F. Guber, M. Naskręt, M. Bogomilov, G. Stefanek, D. Tefelski, A. Garibov, V. Babkin, A. Haesler, Vladimir Vechernin, S. Kowalski, M. Maćkowiak-Pawłowska, Mateusz Baszczyk, P. Podlaski, Markus Roth, V. I. Kolesnikov, J. Cybowska, Marek Gaździcki, M. Rumyantsev, O. Wyszyński, A. Bravar, Alexander Malakhov, R. Tsenov, and A. D. Marino
Subjects: Physics, Nuclear physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, 0103 physical sciences, 010303 astronomy & astrophysics, 01 natural sciences, Engineering (miscellaneous), Beam (structure)
Abstract: In this erratum, we clarify the details of the comparison of
Published: 2021
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33. Measurement of the production cross section of 31 GeV/c protons on carbon via beam attenuation in a 90-cm-long target

Author: Piotr Dorosz, H. Ströbele, Andrzej Rybicki, V.M. Golovatyuk, Mate Csanad, G. A. Feofilov, Tatiana Lazareva, M. Unger, S. Bhosale, A. Tefelska, Miroslaw Marek Kielbowicz, Maciej Rybczyński, T. Antičić, O. Busygina, M. Lewicki, W. Bryliński, Michael Deveaux, Tobiasz Czopowicz, M. Rumyantsev, A. Garibov, V. Babkin, H. J. Mathes, J. Brzychczyk, B. A. Popov, M. Słodkowski, S. Ilieva, J. Dumarchez, P. Staszel, B. Porfy, B. T. Rumberger, Antoni Aduszkiewicz, E. Rondio, K. Wojcik, N. Kargin, V. A. Kireyeu, M. Ravonel, J. Stepaniak, T. Susa, A. Dmitriev, Markus Roth, O. Golosov, K. Schmidt, Alberica Toia, R. Płaneta, A. Damyanova, Z. Majka, K. Łojek, A. Marcinek, F.F. Guber, O. Petukhov, Vitalii Ozvenchuk, A. Ivashkin, S.N. Igolkin, W. Dominik, A. V. Brandin, S. R. Johnson, D. Kolev, D. Pszczel, B. Maksiak, M. Kuich, S. Puławski, V. Tereshchenko, Sergey V. Morozov, Evgeny Andronov, Alexey Kurepin, Ilya Selyuzhenkov, A. Zaitsev, A. Korzenev, J. Puzović, D. Tefelski, Samrangy Sadhu, Z. Fodor, M. Ćirković, Ralf Ulrich, A. O. Merzlaya, A. Wickremasinghe, M.B. Golubeva, Andras Laszlo, T. Matulewicz, B. Kozłowski, F.F. Valiev, M. Posiadala-Zezula, A. Taranenko, K. K. Allison, M. Strikhanov, Ł. Mik, Michal Koziel, Darko Veberič, Dieter Røhrich, M. Naskręt, Katarzyna Grebieszkow, Marek Gaździcki, M. Bogomilov, G. Stefanek, M. Buryakov, D. S. Prokhorova, Dag Larsen, O. Wyszyński, B. Messerly, A. Haesler, M. Pavin, V. Klochkov, Vladimir Kovalenko, Vladimir Vechernin, R. Zwaska, Wojciech Kucewicz, S. Kowalski, E. Kashirin, V. I. Kolesnikov, J. Cybowska, M. Maćkowiak-Pawłowska, V. V. Lyubushkin, G. L. Melkumov, Mateusz Baszczyk, P. Podlaski, V. Matveev, A. Blondel, R. Engel, K. Marton, A. Yu. Seryakov, V. Paolone, A. Bravar, E. D. Zimmerman, R. Tsenov, A. D. Marino, Alexander Malakhov, D. Uzhva, Alexey Krasnoperov, Y. Nagai, A. Sadovsky, A. Acharya, A. Rustamov, H. Adhikary, Ludwik Turko, M. Deliyergiyev, P. Seyboth, N. Davis, L. Fields, Kreso Kadija, Adam Bzdak, H. Cherif, and Rainer Arno Ernst Renfordt
Subjects: Physics, Spectrometer, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Attenuation, Hadron, Flux, 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), 0103 physical sciences, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, 010306 general physics, Neutrino oscillation, Beam (structure)
Abstract: The production cross section of 30.92 GeV/c protons on carbon is measured by the NA61/SHINE spectrometer at the CERN SPS by means of beam attenuation in a copy (replica) of the 90-cm-long target of the T2K neutrino oscillation experiment. The employed method for direct production cross-section estimation minimizes model corrections for elastic and quasi-elastic interactions. The obtained production cross section is σ$_{prod}$ = 227.6 ± 0.8(stat)$\frac{+1.9}{−3.2}$(sys) − 0.8(mod) mb. It is in agreement with previous NA61/SHINE results obtained with a thin carbon target, while providing improved precision with a total fractional uncertainty of less than 2%. This direct measurement is performed to reduce the uncertainty on the T2K neutrino flux prediction associated with the re-weighting of the interaction rate of neutrino-yielding hadrons.
Published: 2021
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34. Probing the symmetry energy with the spectral pion ratio

Author: Naohiro Inabe, Y. Leifels, J. Estee, P. Morfouace, mrow, Piotr Pawłowski, W. G. Lynch, Kazuo Ieki, H. Scheit, Thomas Aumann, Nobuyuki Chiga, D. M. Rossi, Yasuhiro Togano, C.Y. Tsang, J. Łukasik, Byung-Sik Hong, H.S. Lee, Hiroyoshi Sakurai, G. Jhang, A. Snoch, K. Pelczar, Jongmin Lee, T. Isobe, mi> π, H. Toernqvist, C. Santamaria, Hidetada Baba, L. Atar, G. Cerizza, Takashi Nakamura, N. Fukuda, Y. M. Zhang, R. Wang, K. Boretzky, S. Nishimura, M. Kurata-Nishimura, mi> Rit, A. Horvat, M. B. Tsang, H. Sato, Noritsugu Nakatsuka, Alan McIntosh, Anna Sochocka, Toshiyuki Sumikama, J. J. Manfredi, Igor Gašparić, D. Suzuki, Yosuke Kondo, Y. Shimizu, Zhigang Xiao, Sherry Yennello, T. Kobayashi, S. Tangwancharoen, Hideaki Otsu, J. Barney, Rebecca Shane, T. Murakami, Hiroyuki Takeda, Herbert A. Simon, M.D. Cozma, J. Brzychczyk, M. Kaneko, D.S. Ahn, Y.J. Kim, H. Suzuki, and P. Lasko
Subjects: Physics, Equation of state, Proton, Isotope, Nuclear Theory, FOS: Physical sciences, General Physics and Astronomy, 01 natural sciences, Symmetry (physics), Spectral line, Neutron star, Pion, 0103 physical sciences, Physics::Accelerator Physics, Neutron, Nuclear Experiment (nucl-ex), Atomic physics, Nuclear Experiment, 010306 general physics
Abstract: Many neutron star (NS) properties, such as the proton fraction within a NS, reflect the symmetry energy contributions to the Equation of State that dominate when neutron and proton densities differ strongly. To constrain these contributions at supra-saturation densities, we measure the spectra of charged pions produced by colliding rare isotope tin (Sn) beams with isotopically enriched Sn targets. Using ratios of the charged pion spectra measured at high transverse momenta, we deduce the slope of the symmetry energy to be $42 < L < 117$ MeV. This value is slightly lower but consistent with the $L$ values deduced from a recent measurement of the neutron skin thickness of $^{208}$Pb.
Published: 2021

35. Measurement of the production cross section of 31 GeV / c protons on carbon via beam attenuation in a 90-cm-long target

Author: A. Acharya, H. Adhikary, A. Aduszkiewicz, K. K. Allison, E. V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Du
Published: 2021
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36. Measurements of $\pi^\pm$, $K^\pm$, $p$ and $\bar{p}$ spectra in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 150$A$ GeV/$c$ with the NA61/SHINE spectrometer at the CERN SPS

Author: A. Tefelska, S. Ilieva, M. Ravonel, M. Rumyantsev, O. Wyszyński, B. Maksiak, A. O. Merzlaya, Andrzej Rybicki, A. Sadovsky, P. Seyboth, E. Rondio, Wojciech Kucewicz, S. Puławski, B. A. Popov, A. Bravar, K. Wojcik, N. Kargin, Ralf Ulrich, D. S. Prokhorova, H. J. Mathes, M. Naskręt, Z. Majka, N. Davis, H. Ströbele, E. Kashirin, Antoni Aduszkiewicz, D. Tefelski, A. Wickremasinghe, V. A. Kireyeu, H. Cherif, Y. Nagai, V. Paolone, M. Strikhanov, M. Bogomilov, G. Stefanek, S. Sadhu, M. Buryakov, E. D. Zimmerman, Kreso Kadija, V. I. Kolesnikov, J. Cybowska, M. Unger, A. V. Brandin, A. Rustamov, A. Garibov, Mate Csanad, F.F. Guber, Vitalii Ozvenchuk, Zbigniew Wlodarczyk, V. Babkin, H. Adhikary, Alberica Toia, M. Kuich, V.M. Golovatyuk, O. Petukhov, Alexander Malakhov, Tatiana Lazareva, S. V. Morozov, V. V. Lyubushkin, I. Selyuzhenkov, Adam Bzdak, K. Schmidt, A. Ivashkin, D. Pszczel, Rainer Arno Ernst Renfordt, A. Acharya, M. Ćirković, G. L. Melkumov, M. Słodkowski, Markus Roth, Ludwik Turko, B. Kozłowski, Alexey Kurepin, P. Dorosz, F.F. Valiev, R. Płaneta, Marek Gaździcki, Evgeny Andronov, St Mrówczyński, D. Uzhva, Alexey Krasnoperov, K. Marton, A. Yu. Seryakov, Z. Fodor, Katarzyna Grebieszkow, Darko Veberič, M.B. Golubeva, Michael Deveaux, Miroslaw Marek Kielbowicz, B. Messerly, Dag Larsen, J. Brzychczyk, Ralph Engel, O. Busygina, M. Lewicki, P. Staszel, K. K. Allison, W. Bryliński, T. Susa, O. Golosov, Andras Laszlo, A. Dmitriev, D. Kolev, J. Puzović, A. Blondel, Michal Koziel, Ł. Mik, B. Porfy, B. T. Rumberger, G. A. Feofilov, A. Marcinek, M. Posiadala-Zezula, R. Tsenov, V. Tereshchenko, Dieter Røhrich, A. Haesler, Vladimir Vechernin, S. Kowalski, M. Maćkowiak-Pawłowska, Mateusz Baszczyk, P. Podlaski, A. D. Marino, Maciej Rybczyński, T. Antičić, S. Bhosale, S. R. Johnson, Tobiasz Czopowicz, A. Korzenev, L. Fields, J. Dumarchez, T. Matulewicz, A. Taranenko, J. Stepaniak, K. Łojek, S.N. Igolkin, W. Dominik, A. Damyanova, Viktor Matveev, M. Deliyergiyev, V. Klochkov, Vladimir Kovalenko, R. Zwaska, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), and NA61/SHINE
Subjects: NA61, matter [hadron], Physics and Astronomy (miscellaneous), matter: interaction, Hadron, Inverse, momentum spectrum [transverse momentum], momentum [beam], 7. Clean energy, 01 natural sciences, Spectral line, High Energy Physics - Experiment, transverse momentum: momentum spectrum, K: multiplicity, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], anti-p: multiplicity, scattering [nucleus nucleus], Nuclear Experiment, Physics, nucleus nucleus: scattering, Super Proton Synchrotron, multiplicity [anti-p], beam: momentum, slope, Transverse mass, Production (computer science), multiplicity [pi], Particle Physics - Experiment, deconfinement, CERN Lab, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], yield [particle], energy dependence, Nuclear physics, mass spectrum: transverse, 0103 physical sciences, Nuclear Physics - Experiment, ddc:530, Rapidity, 010306 general physics, Engineering (miscellaneous), particle: yield, p: multiplicity, pi: multiplicity, 010308 nuclear & particles physics, CERN SPS, beryllium, proton synchrotron, hadron: matter, rapidity spectrum, transverse [mass spectrum], interaction [matter], multiplicity [K], spectrometer, multiplicity [p], Bar (unit), experimental results
Abstract: The European physical journal / C 81(1), 73 (1-38) (2021). doi:10.1140/epjc/s10052-020-08733-x, The NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) studies the onset of deconfinement in hadron matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $\pi ^\pm $, $K^\pm $, p and $\bar{p}$ produced in the 20% most central$^7$Be+$^9$Be collisions at beam momenta of 19A, 30A, 40A, 75A and 150A ${\mathrm{Ge} \mathrm{V}}\!/\!c$. The energy dependence of the $K^\pm $/$\pi ^\pm $ ratios as well as of inverse slope parameters of the $K^\pm $ transverse mass distributions are close to those found in inelastic p+p reactions. The new results are compared to the world data on p+p and Pb+Pb collisions as well as to predictions of the Epos, Urqmd, Ampt, Phsd and Smash models., Published by Springer, Heidelberg
Published: 2021
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37. Rapidity distributions of Z = 1 isotopes and the nuclear symmetry energy from Sn+Sn collisions with radioactive beams at 270 MeV/nucleon

Author: G. Cerizza, Byung-Sik Hong, Naohito Inabe, Piotr Pawłowski, P. Lasko, Toshiyuki Sumikama, T. Isobe, H. Sato, Noritsugu Nakatsuka, Akira Ono, T. Kobayashi, Yosuke Kondo, Alan McIntosh, P. Morfouace, D. M. Rossi, Jongmin Lee, N. Fukuda, Sherry Yennello, Kazuo Ieki, D.S. Ahn, J. Estee, H. Baba, J. Barney, Igor Gašparić, W. G. Lynch, D. Suzuki, J. Brzychczyk, Thomas Aumann, Hiroyuki Takeda, John Yurkon, A. Horvat, S. Nishimura, M. Kaneko, Hiroyoshi Sakurai, Y. M. Zhang, Yasuhiro Togano, S. Tangwancharoen, Zhigang Xiao, R. Olsen, M. Kurata-Nishimura, C.Y. Tsang, J. Łukasik, M. B. Tsang, K. Pelczar, Y. Leifels, Herbert A. Simon, N. Ikeno, J. J. Manfredi, Nobuyuki Chiga, R. Wang, C. Santamaria, H. Törnqvist, K. Boretzky, Hideaki Otsu, Rebecca Shane, G. Jhang, T. Ichihara, T. Murakami, Takashi Nakamura, H. Suzuki, H.S. Lee, Yohei Shimizu, Y.J. Kim, H. Scheit, and L. Atar
Subjects: Nuclear and High Energy Physics, Hydrogen, Proton, QC1-999, Nuclear Theory, chemistry.chemical_element, Nuclear physics, Antisymmetrized molecular dynamics, cluster productions, ddc:530, Rapidity, Neutron, Nuclear Experiment, Physics, Isotope, heavy radioactive isotope collisions, antisymmetrized molecular dynamics, Cluster productions, Heavy radioactive isotope collisions, Nuclear symmetry energy, Symmetry (physics), chemistry, Deuterium, nuclear symmetry energy, Nucleon
Abstract: Physics letters / B 822, 136681 (2021). doi:10.1016/j.physletb.2021.136681, Published by North-Holland Publ., Amsterdam
Published: 2021
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38. Measurements of $$\pi ^-$$ production in $$^7$$Be + $$^9$$Be collisions at beam momenta from 19A to 150$$A\,\text{ GeV }\!/\!c$$ in the NA61/SHINE experiment at the CERN SPS

Author: Vitalii Ozvenchuk, M. Kuich, H. Ströbele, D. Tefelski, Adam Bzdak, H. Cherif, A. Ivashkin, S. R. Johnson, A. Garibov, P. Seyboth, D. S. Prokhorova, A. V. Brandin, V. Babkin, N. Davis, K. K. Allison, Katarzyna Grebieszkow, Michael Deveaux, F.F. Valiev, Alexey Kurepin, S. Bhosale, Kreso Kadija, A. Korzenev, L. Fields, Mate Csanad, D. Pszczel, M. Ravonel, B. Porfy, B. T. Rumberger, Marek Gaździcki, S. V. Morozov, B. A. Popov, S. Puławski, H. J. Mathes, G. A. Feofilov, A. Damyanova, J. Brzychczyk, Ralph Engel, Tobiasz Czopowicz, Antoni Aduszkiewicz, K. Marton, Y. Nagai, A. Yu. Seryakov, T. Susa, M. Rumyantsev, O. Wyszyński, E. Rondio, Markus Roth, T. Matulewicz, Tatiana Lazareva, R. Tsenov, J. Dumarchez, K. Wojcik, N. Kargin, Rainer Arno Ernst Renfordt, A. Wickremasinghe, A. Taranenko, Ludwik Turko, D. Kolev, A. Dmitriev, A. D. Marino, M. Maćkowiak-Pawłowska, V. A. Kireyeu, P. Dorosz, Viktor Matveev, Zbigniew Wlodarczyk, A. Bravar, S. Sadhu, Mateusz Baszczyk, B. Messerly, I. Selyuzhenkov, A. Blondel, Alexander Malakhov, Z. Fodor, B. Maksiak, J. Stepaniak, Evgeny Andronov, Darko Veberič, A. Sadovsky, Dag Larsen, Andrzej Rybicki, A. Acharya, M. Deliyergiyev, M.B. Golubeva, P. Podlaski, R. Płaneta, Ł. Mik, St Mrówczyński, Alberica Toia, V.M. Golovatyuk, K. Łojek, M. Naskręt, V. I. Kolesnikov, J. Cybowska, D. Uzhva, Z. Majka, Miroslaw Marek Kielbowicz, A. O. Merzlaya, Alexey Krasnoperov, M. Słodkowski, V. Paolone, S.N. Igolkin, W. Dominik, J. Puzović, O. Busygina, Ralf Ulrich, E. D. Zimmerman, M. Bogomilov, M. Lewicki, A. Rustamov, A. Tefelska, W. Bryliński, M. Strikhanov, V. Tereshchenko, P. Staszel, H. Adhikary, G. Stefanek, K. Schmidt, O. Petukhov, S. Ilieva, Maciej Rybczyński, T. Antičić, A. Marcinek, M. Unger, V. Klochkov, Vladimir Kovalenko, O. Golosov, Dieter Røhrich, R. Zwaska, F.F. Guber, M. Posiadala-Zezula, M. Ćirković, A. Haesler, Vladimir Vechernin, S. Kowalski, M. Buryakov, Wojciech Kucewicz, E. Kashirin, Andras Laszlo, Michal Koziel, V. V. Lyubushkin, and G. L. Melkumov
Subjects: Physics, Physics and Astronomy (miscellaneous), Meson, 010308 nuclear & particles physics, Hadron, 01 natural sciences, Super Proton Synchrotron, Particle identification, Nuclear physics, Pion, 0103 physical sciences, Transverse mass, Rapidity, 010306 general physics, Nucleon, Engineering (miscellaneous)
Abstract: The NA61/SHINE collaboration studies at the CERN Super Proton Synchrotron (SPS) the onset of deconfinement in hadronic matter by the measurement of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra and mean multiplicities of$$\pi ^{-}$$π-mesons produced in the 5% mostcentral$$^7$$7Be +$$^9$$9Be collisions at beam momenta of 19A, 30A, 40A, 75Aand 150$$A\,\text{ GeV }\!/\!c$$AGeV/cobtained by the so-called$$h^-$$h-method which does not require any particle identification. The shape of the transverse mass spectra differs from the shapes measured incentralPb + Pb collisions and inelasticp+pinteractions. The normalized width of the rapidity distribution decreases with increasing collision energy and is in between the results for inelastic nucleon–nucleon andcentralPb + Pb collisions. The mean multiplicity of pions per wounded nucleon incentral$$^7$$7Be +$$^9$$9Be collisions is close to that incentralPb + Pb collisions up to 75$$A\,\text{ GeV }\!/\!c$$AGeV/c. However, at the top SPS energy the result lies between those for nucleon–nucleon and Pb + Pb interactions. The results are discussed in the context of predictions for the onset of deconfinement at the CERN SPS collision energies.
Published: 2020
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39. The percolation phase transition and statistical multifragmentation in finite systems

Author: A. Botvina, T. Pietrzak, Concettina Sfienti, A. Wieloch, J. Brzychczyk, W. Trautmann, A. Le Fèvre, Nihal Büyükçizmeci, Piotr Pawłowski, and J. Łukasik
Subjects: Nuclear and High Energy Physics, Phase transition, heavy ion collisions, Nuclear Theory, FOS: Physical sciences, 01 natural sciences, Heat capacity, percolation theory, Nuclear physics, statistical multifragmentation models, Percolation theory, 0103 physical sciences, Heavy ion collisions, ddc:530, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Observable, Statistical model, lcsh:QC1-999, Skewness, Statistical multifragmentation models, Kurtosis, Nucleon, lcsh:Physics
Abstract: The cumulant ratios up to fourth order of the $Z$ distributions of the largest fragment in spectator fragmentation following $^{107,124}$Sn+Sn and $^{124}$La+Sn collisions at 600 MeV/nucleon have been investigated. They are found to exhibit the signatures of a second-order phase transition established with cubic bond percolation and previously observed in the ALADIN experimental data for fragmentation of $^{197}$Au projectiles at similar energies. The deduced pseudocritical points are found to be only weakly dependent on the $A/Z$ ratio of the fragmenting spectator source. The same holds for the corresponding chemical freeze-out temperatures of close to 6 MeV. The experimental cumulant distributions are quantitatively reproduced with the Statistical Multifragmentation Model and parameters used to describe the experimental fragment multiplicities, isotope distributions and their correlations with impact-parameter related observables in these reactions. The characteristic coincidence of the zero transition of the skewness with the minimum of the kurtosis excess appears to be a generic property of statistical models and is found to coincide with the maximum of the heat capacity in the canonical thermodynamic fragmentation model., 13 pages, 5 figures
Published: 2020
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40. Measurements of $${\Xi }{^-} $$ and $$\overline{\Xi }{^+} $$ production in proton–proton interactions at $$\sqrt{s_{NN}}$$ = 17.3 $$\hbox {Ge}\hbox {V}$$ in the NA61/SHINE experiment

Author: Mate Csanad, Tatiana Lazareva, M. Słodkowski, R. Płaneta, St Mrówczyński, A. Blondel, M. Ravonel, Ralf Ulrich, V. I. Kolesnikov, J. Cybowska, M. Strikhanov, Y. Nagai, D. Kolev, Ł. Mik, Vitalii Ozvenchuk, V. Klochkov, Vladimir Kovalenko, S. Puławski, R. Zwaska, B. Maksiak, V. Tereshchenko, A. Damyanova, D. S. Prokhorova, M. Kuich, A. Wickremasinghe, Z. Majka, Zbigniew Wlodarczyk, B. Porfy, P. Seyboth, B. T. Rumberger, D. Uzhva, A. V. Brandin, Viktor Matveev, Alexey Krasnoperov, A. Sadovsky, A. O. Merzlaya, Marek Gaździcki, N. Davis, M. Deliyergiyev, A. Tefelska, Kreso Kadija, Dieter Røhrich, S. V. Morozov, M. Rumyantsev, O. Wyszyński, H. J. Mathes, J. Brzychczyk, Z. Fodor, S. Ilieva, Andrzej Rybicki, Antoni Aduszkiewicz, Ralph Engel, J. Stepaniak, F.F. Guber, A. Rustamov, T. Susa, A. Dmitriev, K. Łojek, A. Haesler, Dag Larsen, Vladimir Vechernin, S.N. Igolkin, W. Dominik, S. Kowalski, Katarzyna Grebieszkow, Ludwik Turko, Adam Bzdak, P. Dorosz, Maciej Rybczyński, T. Antičić, M. Naskręt, V. Paolone, S. R. Johnson, M. Bogomilov, G. Stefanek, A. Korzenev, L. Fields, E. D. Zimmerman, M. Unger, S. Bhosale, M. Maćkowiak-Pawłowska, T. Matulewicz, A. Taranenko, Tobiasz Czopowicz, Mateusz Baszczyk, J. Dumarchez, P. Podlaski, A. Ivashkin, Michael Deveaux, P. Staszel, Alberica Toia, V.M. Golovatyuk, D. Pszczel, B. Messerly, Alexey Kurepin, O. Petukhov, H. Ströbele, M. Ćirković, D. Tefelski, M. Buryakov, Evgeny Andronov, A. Garibov, V. Babkin, F.F. Valiev, J. Puzović, M.B. Golubeva, Markus Roth, Darko Veberič, B. A. Popov, E. Rondio, K. Wojcik, N. Kargin, V. A. Kireyeu, Wojciech Kucewicz, I. Selyuzhenkov, E. Kashirin, A. Marcinek, M. Posiadala-Zezula, O. Golosov, V. V. Lyubushkin, R. Tsenov, G. L. Melkumov, A. D. Marino, A. Bravar, Miroslaw Marek Kielbowicz, Alexander Malakhov, O. Busygina, M. Lewicki, W. Bryliński, Rainer Arno Ernst Renfordt, K. Marton, A. Yu. Seryakov, H. Cherif, G. A. Feofilov, Andras Laszlo, K. Schmidt, and Michal Koziel
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Hyperon, Strangeness, 01 natural sciences, Spectral line, Phase space, 0103 physical sciences, Transverse momentum, Rapidity, Multiplicity (chemistry), 010306 general physics, Nucleon, Engineering (miscellaneous)
Abstract: The production of $$\Xi (1321)^{-}$$ Ξ ( 1321 ) - and $$\overline{\Xi }(1321)^{+}$$ Ξ ¯ ( 1321 ) + hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 $$\hbox {Ge}\hbox {V}\!/\!c$$ Ge / c . Double differential distributions in rapidity $${y}$$ y and transverse momentum $$p_{T}$$ p T are obtained from a sample of 33M inelastic events. They allow to extrapolate the spectra to full phase space and to determine the mean multiplicity of both $${\Xi }{^-} $$ Ξ - and $$\overline{\Xi }{^+} $$ Ξ ¯ + . The rapidity and transverse momentum spectra are compared to transport model predictions. The $${\Xi }{^-} $$ Ξ - mean multiplicity in inelastic p+p interactions at 158 $$\hbox {Ge}\hbox {V}\!/\!c$$ Ge / c is used to quantify the strangeness enhancement in A+A collisions at the same centre-of-mass energy per nucleon pair.
Published: 2020
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41. Two-particle correlations in azimuthal angle and pseudorapidity in central $^7$Be+$^9$Be collisions at the CERN Super Proton Synchrotron

Author: Z. Fodor, M. Maćkowiak-Pawłowska, K. Marton, O. Petukhov, A. Yu. Seryakov, Dag Larsen, P. Seyboth, Mateusz Baszczyk, Z. Majka, N. Davis, D. Uzhva, Alexey Krasnoperov, P. Podlaski, M. Ćirković, Kreso Kadija, A. Sadovsky, G. A. Feofilov, S. R. Johnson, A. Korzenev, L. Fields, T. Matulewicz, A. Taranenko, Alexey Kurepin, E. Rondio, K. Wojcik, N. Kargin, V. A. Kireyeu, O. Golosov, H. Cherif, M. Ravonel, A. Rustamov, Katarzyna Grebieszkow, Vitalii Ozvenchuk, Marek Gaździcki, A. V. Brandin, V. Tereshchenko, Andras Laszlo, M. Kuich, J. Stepaniak, K. Łojek, Evgeny Andronov, Miroslaw Marek Kielbowicz, O. Busygina, M. Lewicki, B. Maksiak, B. A. Popov, F.F. Guber, Michal Koziel, Wojciech Kucewicz, V. I. Kolesnikov, J. Cybowska, A. Garibov, Dieter Røhrich, J. Brzychczyk, A. Ivashkin, Ralph Engel, S.N. Igolkin, W. Dominik, Ludwik Turko, E. Kashirin, M.B. Golubeva, W. Bryliński, Rainer Arno Ernst Renfordt, B. Porfy, V. Babkin, V. Paolone, V. Klochkov, Vladimir Kovalenko, H. Ströbele, R. Zwaska, B. Messerly, P. Dorosz, S. V. Morozov, B. T. Rumberger, Mate Csanad, S. Puławski, T. Susa, E. D. Zimmerman, A. O. Merzlaya, H. J. Mathes, A. Haesler, Vladimir Vechernin, A. Dmitriev, Tatiana Lazareva, A. Damyanova, Adam Bzdak, M. Rumyantsev, O. Wyszyński, S. Kowalski, V. V. Lyubushkin, D. Kolev, Antoni Aduszkiewicz, M. Naskręt, A. Blondel, K. Schmidt, M. Buryakov, Maciej Rybczyński, T. Antičić, A. Tefelska, Markus Roth, Alberica Toia, V.M. Golovatyuk, G. L. Melkumov, M. Bogomilov, G. Stefanek, F.F. Valiev, Viktor Matveev, A. Wickremasinghe, Y. Nagai, I. Selyuzhenkov, Darko Veberič, S. Bhosale, R. Płaneta, M. Deliyergiyev, St Mrówczyński, Ł. Mik, Tobiasz Czopowicz, Zbigniew Wlodarczyk, S. Ilieva, Michael Deveaux, D. Tefelski, D. Pszczel, J. Dumarchez, Ralf Ulrich, A. Marcinek, M. Strikhanov, D. S. Prokhorova, M. Posiadala-Zezula, M. Słodkowski, Andrzej Rybicki, P. Staszel, M. Unger, J. Puzović, R. Tsenov, A. D. Marino, A. Bravar, Alexander Malakhov, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), and NA61/SHINE
Subjects: NA61, Physics and Astronomy (miscellaneous), Hadron, Nuclear Theory, momentum [beam], 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], scattering [p p], correlation function, Nuclear Experiment (nucl-ex), dimension: 2, Nuclear Experiment, Physics, CERN Super Proton Synchrotron, NA61/SHINE Collaboration, suppression, Super Proton Synchrotron, 2 [dimension], Pseudorapidity, beam: momentum, Nucleon, Particle Physics - Experiment, correlation: two-particle, p p: scattering, Proton Synchrotron, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Momentum, Nuclear physics, 0103 physical sciences, Rapidity, ddc:530, Nuclear Physics - Experiment, 010306 general physics, Engineering (miscellaneous), two-particle [correlation], enhancement, 010308 nuclear & particles physics, 7Be + 9Be collisions, CERN SPS, proton synchrotron, 19-150 GeV/nucleon, rapidity, Quark–gluon plasma, quark-gluon plasma, angular-correlations, dependence, collisions, High Energy Physics::Experiment, hadron, experimental results
Abstract: The European physical journal / C 80(12), 1151 (1-20) (2020). doi:10.1140/epjc/s10052-020-08675-4, A measurement of charged hadron pair correlations in two-dimensional $\Delta \eta \Delta \phi $ space is presented. The analysis is based on total 30 million central Be + Be collisions observed in the NA61/SHINE detector at the CERN SPS for incident beam momenta of 19A, 30A, 40A, 75A, and 150A $\text {Ge} \text {V}/c$. Measurements were carried out for unlike-sign and like-sign charge hadron pairs independently. The $C(\Delta \eta ,\Delta \phi )$ correlation functions were compared with results from a similar analysis on p + p interactions at similar beam momenta per nucleon. General trends of the back-to-back correlations are similar in central Be + Be collisions and p + p interactions, but are suppressed in magnitude due to the increased combinatorial background. Predictions from the Epos and UrQMD models are compared to the measurements. Evolution of an enhancement around $(\Delta \eta ,\Delta \phi ) = (0,0)$ with incident energy is observed in central Be + Be collisions. It is not predicted by both models and almost non-existing in proton–proton collisions at the same momentum per nucleon., Published by Springer, Heidelberg
Published: 2020
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42. Search for an exotic S=−2 , Q=−2 baryon resonance in proton-proton interactions at sNN=17.3 GeV

Author: O. Petukhov, F.F. Guber, M. Ćirković, Maciej Rybczyński, Michael Deveaux, T. Antičić, H. Ströbele, B. A. Popov, A. Garibov, Adam Bzdak, H. J. Mathes, V. I. Kolesnikov, J. Cybowska, J. Puzović, S. R. Johnson, M. Maćkowiak-Pawłowska, V. Babkin, Mateusz Baszczyk, Vitalii Ozvenchuk, M. Kuich, A. Damyanova, S. Bhosale, Antoni Aduszkiewicz, D. Kolev, A. Korzenev, P. Podlaski, B. Maksiak, M. Buryakov, O. Wyszyński, A. Ivashkin, Alexey Kurepin, T. Matulewicz, F.F. Valiev, S. Puławski, V. Tereshchenko, V. Paolone, Sergey V. Morozov, Tobiasz Czopowicz, Darko Veberič, D. Pszczel, J. Dumarchez, Markus Roth, Ralf Ulrich, A. O. Merzlaya, B. Łysakowski, E. D. Zimmerman, H. Cherif, Andrzej Rybicki, A. Wickremasinghe, J. Stepaniak, B. Porfy, Alexander Malakhov, B. T. Rumberger, M. Naskręt, M. Strikhanov, Ł. Mik, M. Unger, A. Taranenko, G. A. Feofilov, Dieter Røhrich, Evgeny Andronov, M. Bogomilov, K. Łojek, B. Messerly, G. Stefanek, M. Ravonel, Alberica Toia, D. S. Prokhorova, V. Klochkov, Vladimir Kovalenko, Z. Majka, R. Zwaska, Marek Gaździcki, Ludwik Turko, A. V. Brandin, S.N. Igolkin, W. Dominik, Mate Csanad, O. Golosov, A. Bravar, Ilya Selyuzhenkov, A. Tefelska, Z. Fodor, Rainer Arno Ernst Renfordt, Tatiana Lazareva, A. Haesler, Vladimir Vechernin, M. Rumyantsev, D. Tefelski, Dag Larsen, M. Deliyergiyev, S. Kowalski, S. Ilieva, M.B. Golubeva, M. Posiadala-Zezula, V.M. Golovatyuk, A. Sadovsky, Wojciech Kucewicz, J. Brzychczyk, K. Schmidt, R. Płaneta, Andras Laszlo, Katarzyna Grebieszkow, E. Rondio, St Mrówczyński, E. Kashirin, T. Susa, Michal Koziel, Miroslaw Marek Kielbowicz, N. Kargin, A. Dmitriev, M. Słodkowski, P. Staszel, V. V. Lyubushkin, G. L. Melkumov, V. A. Kireyeu, O. Busygina, M. Lewicki, A. Marcinek, W. Bryliński, A. Rustamov, R. Tsenov, A. D. Marino, A. Blondel, Y. Nagai, Zbigniew Wlodarczyk, Alexey Krasnoperov, V. Matveev, R. Engel, K. Marton, P. Seyboth, A. Yu. Seryakov, N. Davis, L. Fields, Kreso Kadija, and Piotr Dorosz
Subjects: Physics, Quark, Quantum chromodynamics, Particle physics, Proton, 010308 nuclear & particles physics, Constituent quark, 01 natural sciences, Resonance (particle physics), Pentaquark, Baryon, 0103 physical sciences, Invariant mass, 010306 general physics
Abstract: Pentaquark states have been extensively investigated theoretically in the context of the constituent quark model. In this paper results of an experimental search for pentaquarks in the Ξ- π-, Ξ- π+, Ξ¯+ π- and Ξ¯+ π+ invariant mass spectra in proton-proton interactions at s=17.3 GeV are presented. Previous possible evidence from the NA49 collaboration of the existence of a narrow Ξ- π- baryon resonance in p+p interactions is not confirmed with almost 10 times greater event statistics. The search was performed using the NA61/SHINE detector which reuses the main components of the NA49 apparatus. No signal was observed with either the selection cuts of NA49 or newly optimized cuts.
Published: 2020
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43. Measurement of $$\phi $$ meson production in $$p + p$$ interactions at 40, 80 and $$158 \, \hbox {GeV}/c$$ with the NA61/SHINE spectrometer at the CERN SPS

Author: Darko Veberič, Wojciech Kucewicz, E. Kashirin, V. V. Lyubushkin, A. Bravar, G. L. Melkumov, A. Garibov, Andrzej Rybicki, A. Damyanova, B. A. Popov, Vitalii Ozvenchuk, M. Kuich, M. Ravonel, V. Babkin, A. Marchionni, V. Paolone, E. D. Zimmerman, K. Marton, A. Sadovsky, Alberica Toia, V.M. Golovatyuk, Alexander Malakhov, A. Yu. Seryakov, M. Unger, Evgeny Andronov, B. Messerly, A. Wojtaszek-Szwarc, V. I. Kolesnikov, J. Cybowska, D. Kolev, I. Selyuzhenkov, M.B. Golubeva, Viktor Matveev, B. Porfy, Ralf Ulrich, L. Zambelli, M. Rumyantsev, D. Pszczel, A. Blondel, A. Ivashkin, A. Tefelska, B. T. Rumberger, A. Marcinek, M. Strikhanov, M. Posiadala-Zezula, M. Deliyergiyev, Markus Roth, A. Rustamov, Katarzyna Grebieszkow, O. Golosov, D. S. Prokhorova, H. J. Mathes, Z. Fodor, Mate Csanad, Michael Deveaux, H. Ströbele, J. Puzović, Ł. Mik, Antoni Aduszkiewicz, S. Ilieva, Dag Larsen, Tatiana Lazareva, V. Klochkov, Vladimir Kovalenko, R. Zwaska, G. A. Feofilov, Ludwik Turko, E. Rondio, D. Manić, Adam Bzdak, P. Dorosz, N. Kargin, V. A. Kireyeu, P. Staszel, K. Kowalik, D. Tefelski, R. Tsenov, R. Płaneta, St Mrówczyński, A. V. Brandin, Marek Gaździcki, Alexey Kurepin, J. Brzychczyk, Ralph Engel, A. D. Marino, B. Maksiak, K. Schmidt, T. Susa, A. Dmitriev, Andras Laszlo, Z. Majka, S. V. Morozov, Y. Nagai, Michal Koziel, P. Seyboth, N. Davis, Kreso Kadija, A. O. Merzlaya, Zbigniew Wlodarczyk, Alexey Krasnoperov, M. Buryakov, O. Wyszyński, E. Richter-Wąs, M. Słodkowski, S. Puławski, A. Wickremasinghe, O. Petukhov, M. Maćkowiak-Pawłowska, Mateusz Baszczyk, M. Ćirković, P. Podlaski, Maciej Rybczyński, T. Antičić, V. Tereshchenko, B. Łysakowski, J. Stepaniak, K. Łojek, Dieter Røhrich, S.N. Igolkin, W. Dominik, S. R. Johnson, A. Korzenev, L. Fields, E. Kaptur, A. Haesler, Vladimir Vechernin, T. Matulewicz, S. Kowalski, A. Taranenko, S. Bhosale, Tobiasz Czopowicz, J. Dumarchez, F.F. Guber, M. Naskręt, M. Bogomilov, G. Stefanek, Rainer Arno Ernst Renfordt, H. Cherif, Miroslaw Marek Kielbowicz, O. Busygina, M. Lewicki, M. Pavin, W. Bryliński, and F.F. Valiev
Subjects: Quantum chromodynamics, Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, Proton, 010308 nuclear & particles physics, Phi meson, 01 natural sciences, Momentum, 0103 physical sciences, Production (computer science), Invariant mass, Rapidity, 010306 general physics, Engineering (miscellaneous)
Abstract: Results on $$\phi $$ϕ meson production in inelastic $$p + p$$p+p collisions at CERN SPS energies are presented. They are derived from data collected by the NA61/SHINE fixed target experiment, by means of invariant mass spectra fits in the $$\phi \rightarrow K^+ K^- $$ϕ→K+K- decay channel. They include the first ever measured double differential spectra of $$\phi $$ϕ mesons as a function of rapidity $$y$$y and transverse momentum $$p_{\text {T}}$$pT for proton beam momenta of $$80 \, \hbox {GeV}/c$$80GeV/c and $$158 \, \hbox {GeV}/c$$158GeV/c, as well as single differential spectra of $$y$$y or $$p_{\text {T}}$$pT for beam momentum of $$40 \, \hbox {GeV}/c$$40GeV/c. The corresponding total $$\phi $$ϕ yields per inelastic $$p + p$$p+p event are obtained. These results are compared with existing data on $$\phi $$ϕ meson production in $$p + p$$p+p collisions. The comparison shows consistency but superior accuracy of the present measurements. The emission of $$\phi $$ϕ mesons in $$p + p$$p+p reactions is confronted with that occurring in $$\mathrm{Pb} + \mathrm{Pb}$$Pb+Pb collisions, and the experimental results are compared with model predictions. It appears that none of the considered models can properly describe all the experimental observations.
Published: 2020
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44. Measurements of hadron production in π++C and π++Be interactions at 60 GeV/c

Author: Vitalii Ozvenchuk, M. Kuich, Katarzyna Grebieszkow, A. Blondel, F.F. Guber, A. V. Brandin, Wojciech Kucewicz, M. Rumyantsev, Z. Majka, R. Engel, K. Marton, E. Kashirin, M. Ravonel, Ilya Selyuzhenkov, S. R. Johnson, A. Korzenev, L. Fields, P. Seyboth, A. Yu. Seryakov, Ralf Ulrich, G. A. Feofilov, Alberica Toia, Andrzej Rybicki, M. Maćkowiak-Pawłowska, L. Zambelli, Mateusz Baszczyk, E. Richter-Wąs, M. Słodkowski, B. Messerly, A. Wojtaszek-Szwarc, H. Cherif, A. Bravar, D. Kolev, V. Klochkov, Vladimir Kovalenko, Y. Nagai, R. Zwaska, T. Matulewicz, Alexander Malakhov, P. Podlaski, Ludwik Turko, A. Damyanova, V. V. Lyubushkin, G. L. Melkumov, M. Strikhanov, V. I. Kolesnikov, M. Naskręt, J. Cybowska, V. Paolone, S. Puławski, Zbigniew Wlodarczyk, J. Stepaniak, N. Davis, O. Golosov, M. Deliyergiyev, B. Porfy, M. Bogomilov, G. Stefanek, Mate Csanad, A. Wickremasinghe, A. Taranenko, B. T. Rumberger, Tatiana Lazareva, J. Brzychczyk, K. Łojek, A. Sadovsky, K. Kowalik, S. Bhosale, E. D. Zimmerman, D. Tefelski, E. Kaptur, F.F. Valiev, P. Staszel, Kreso Kadija, A. Haesler, Vladimir Vechernin, Tobiasz Czopowicz, T. Susa, M. Pavin, R. Tsenov, K. Schmidt, S. Kowalski, R. Płaneta, Miroslaw Marek Kielbowicz, S.N. Igolkin, M. Unger, Darko Veberič, St Mrówczyński, A. D. Marino, Marek Gaździcki, D. S. Prokhorova, Alexey Kurepin, W. Dominik, J. Dumarchez, Piotr Dorosz, H. J. Mathes, Alexey Krasnoperov, A. Dmitriev, A. Marcinek, O. Busygina, Antoni Aduszkiewicz, M. Lewicki, A. Snoch, A. Ivashkin, M. Posiadala-Zezula, A. Rustamov, W. Bryliński, V. Tereshchenko, V. Matveev, Adam Bzdak, Sergey V. Morozov, D. Pszczel, A. Garibov, Rainer Arno Ernst Renfordt, Andras Laszlo, A. Tefelska, V. Babkin, B. Łysakowski, S. Ilieva, Michal Koziel, B. Maksiak, Maciej Rybczyński, T. Antičić, Ł. Mik, Dieter Røhrich, A. O. Merzlaya, Michael Deveaux, Markus Roth, Z. Fodor, A. Marchionni, Dag Larsen, O. Petukhov, H. Ströbele, E. Rondio, M. Ćirković, K. Wojcik, N. Kargin, V. A. Kireyeu, Evgeny Andronov, M.B. Golubeva, M. Buryakov, O. Wyszyński, J. Puzović, B. A. Popov, and G. B. Mills
Subjects: Quantum chromodynamics, Physics, Spectrometer, 010308 nuclear & particles physics, Oscillation, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Hadron, Flux, 7. Clean energy, 01 natural sciences, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, 010306 general physics, Neutrino oscillation, Fermi Gamma-ray Space Telescope
Abstract: Precise knowledge of hadron production rates in the generation of neutrino beams is necessary for accelerator-based neutrino experiments to achieve their physics goals. NA61/SHINE, a large-acceptance hadron spectrometer, has recorded hadron+nucleus interactions relevant to ongoing and future long-baseline neutrino experiments at Fermi National Accelerator Laboratory. This paper presents three analyses of interactions of 60 GeV/$c$ $\pi^+$ with thin, fixed carbon and beryllium targets. Integrated production and inelastic cross sections were measured for both of these reactions. In an analysis of strange, neutral hadron production, differential production multiplicities of $K^0_{S}$, $\Lambda$ and anti-$\Lambda$ were measured. Lastly, in an analysis of charged hadron production, differential production multiplicities of $\pi^+$, $\pi^-$, $K^+$, $K^-$ and protons were measured. These measurements will enable long-baseline neutrino experiments to better constrain predictions of their neutrino flux in order to achieve better precision on their neutrino cross section and oscillation measurements.
Published: 2019
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45. Measurements of production and inelastic cross sections for p+C , p+Be , and p+Al at 60 GeV/c and p+C and p+Be at 120 GeV/c

Author: L. Zambelli, M. Rumyantsev, O. Golosov, Ludwik Turko, Vitalii Ozvenchuk, M. Kuich, D. S. Prokhorova, M. Deliyergiyev, H. Cherif, A. Damyanova, A. Marchionni, P. Seyboth, H. J. Mathes, E. Rondio, N. Davis, V. I. Kolesnikov, J. Cybowska, L. Fields, K. Wojcik, N. Kargin, Antoni Aduszkiewicz, B. Maksiak, V. A. Kireyeu, A. Snoch, Piotr Dorosz, D. Pszczel, Marek Gaździcki, K. Kowalik, B. Porfy, Mate Csanad, R. Engel, M. Ravonel, D. Tefelski, Alberica Toia, B. T. Rumberger, M. Buryakov, Andras Laszlo, K. Marton, Rainer Arno Ernst Renfordt, A. Yu. Seryakov, J. Brzychczyk, O. Wyszyński, A. O. Merzlaya, B. Messerly, Tatiana Lazareva, A. Garibov, A. Wojtaszek-Szwarc, A. V. Brandin, Michal Koziel, A. Ivashkin, A. Tefelska, D. Kolev, V. Babkin, Maciej Rybczyński, T. Antičić, Ilya Selyuzhenkov, O. Petukhov, T. Susa, S. R. Johnson, Evgeny Andronov, G. A. Feofilov, M. Ćirković, B. A. Popov, A. Rustamov, F. Guber, A. Korzenev, A. Dmitriev, Markus Roth, S. Ilieva, K. Schmidt, R. Płaneta, T. Matulewicz, Michael Deveaux, Y. Nagai, Miroslaw Marek Kielbowicz, M. Posiadala-Zezula, A. Sadovsky, Katarzyna Grebieszkow, A. B. Kurepin, H. Ströbele, St Mrówczyński, J. Stepaniak, V. Klochkov, Vladimir Kovalenko, O. Busygina, R. Zwaska, M. Lewicki, P. Staszel, Wojciech Kucewicz, Zbigniew Wlodarczyk, V. Matveev, K. Łojek, W. Bryliński, E. Kashirin, M. Pavin, Andrzej Rybicki, A. Marcinek, S.N. Igolkin, W. Dominik, R. Tsenov, G. B. Mills, M. Unger, Ł. Mik, A. D. Marino, Z. Fodor, Alexey Krasnoperov, V. V. Lyubushkin, Ralf Ulrich, G. L. Melkumov, Dag Larsen, A. Bravar, F.F. Valiev, V. Paolone, M. Strikhanov, E. D. Zimmerman, Z. Majka, Darko Veberič, M. B. Golubeva, Alexander Malakhov, A. Blondel, M. Naskręt, J. Puzović, M. Bogomilov, G. Stefanek, S. Bhosale, Tobiasz Czopowicz, J. Dumarchez, Kreso Kadija, Adam Bzdak, V. Tereshchenko, Sergey V. Morozov, B. Łysakowski, Dieter Røhrich, M. Maćkowiak-Pawłowska, Mateusz Baszczyk, P. Podlaski, E. Kaptur, A. Haesler, Vladimir Vechernin, S. Kowalski, E. Richter-Wąs, M. Słodkowski, S. Puławski, A. Wickremasinghe, and A. Taranenko
Subjects: Quantum chromodynamics, Physics, Large Hadron Collider, Spectrometer, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Flux, 01 natural sciences, 7. Clean energy, Super Proton Synchrotron, Nuclear physics, Cross section (geometry), 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, 010306 general physics
Abstract: This paper presents measurements of production cross sections and inelastic cross sections for the following reactions: 60 GeV/c protons with C, Be, Al targets and 120 GeV/c protons with C and Be targets. The analysis is performed using the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron. First measurements are obtained using protons at 120 GeV/c, while the results for protons at 60 GeV/c are compared with previously published measurements. These interaction cross section measurements are critical inputs for neutrino flux prediction in current and future accelerator-based long-baseline neutrino experiments.
Published: 2019
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46. NA61/SHINE Collaboration

Author: A. Acharya, H. Adhikary, A. Aduszkiewicz, E.V. Andronov, T. Antićić, V. Babkin, M. Baszczyk, S. Bhosale, A. Blondel, M. Bogomilov, A. Brandin, A. Bravar, W. Bryliński, J. Brzychczyk, M. Buryakov, O. Busygina, A. Bzdak, H. Cherif, M. Ćirković, M. Csanad, J. Cybowska, T. Czopowicz, A. Damyanova, N. Davis, M. Deliyergiyev, M. Deveaux, A. Dmitriev, W. Dominik, P. Dorosz, J. Dumarchez, R. Engel, G.A. Feofilov, L. Fields, Z. Fodor, A. Garibov, M. Gaździcki, O. Golosov, V. Golovatyuk, M. Golubeva, K. Grebieszkow, F. Guber, A. Haesler, S.N. Igolkin, S. Ilieva, A. Ivashkin, S.R. Johnson, K. Kadija, N. Kargin, E. Kashirin, M. Kiełbowicz, V.A. Kireyeu, V. Klochkov, V.I. Kolesnikov, D. Kolev, A. Korzenev, V.N. Kovalenko, S. Kowalski, M. Koziel, A. Krasnoperov, W. Kucewicz, M. Kuich, A. Kurepin, D. Larsen, A. László, T.V. Lazareva, M. Lewicki, K. Łojek, V.V. Lyubushkin, M. Maćkowiak-Pawłowska, Z. Majka, B. Maksiak, A.I. Malakhov, A. Marcinek, A.D. Marino, K. Marton, H.-J. Mathes, T. Matulewicz, V. Matveev, G.L. Melkumov, A.O. Merzlaya, B. Messerly, Ł. Mik, S. Morozov, S. Mrówczyński, Y. Nagai, M. Naskręt, V. Ozvenchuk, V. Paolone, O. Petukhov, R. Płaneta, P. Podlaski, B.A. Popov, B. Porfy, M. Posiadała-Zezula, D.S. Prokhorova, D. Pszczel, S. Puławski, J. Puzović, M. Ravonel, R. Renfordt, D. Röhrich, E. Rondio, M. Roth, B.T. Rumberger, M. Rumyantsev, A. Rustamov, M. Rybczynski, A. Rybicki, S. Sadhu, A. Sadovsky, K. Schmidt, I. Selyuzhenkov, A.Yu. Seryakov, P. Seyboth, M. Słodkowski, P. Staszel, G. Stefanek, J. Stepaniak, M. Strikhanov, H. Ströbele, T. Šuša, A. Taranenko, A. Tefelska, D. Tefelski, V. Tereshchenko, A. Toia, R. Tsenov, L. Turko, R. Ulrich, M. Unger, D. Uzhva, F.F. Valiev, D. Veberič, V.V. Vechernin, A. Wickremasinghe, Z. Włodarczyk, K. Wojcik, O. Wyszyński, E.D. Zimmerman, and R. Zwaska
Subjects: Nuclear and High Energy Physics
Published: 2021
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47. CBM Collaboration

Author: T. Ablyazimov, R.P. Adak, A. Adler, A. Agarwal, K. Agarwal, Z. Ahammed, A. Ahmad, F. Ahmad, N. Ahmad, A. Akindinov, P. Akishin, V. Akishina, M. Al-Turany, I. Alekseev, E. Alexandrov, I. Alexandrov, A. Andronic, H. Appelshäuser, D. Argintaru, B. Arnoldi-Meadows, E. Atkin, M.D. Azmi, V. Baban, S. Bähr, M. Bajdel, G. Balassa, M. Balzer, N. Baranova, S. Bashir, M. Baszczyk, E. Bechtel, J. Becker, K.-H. Becker, M. Becker, J. Beckhoff, S. Belogurov, A. Belousov, J. Bendarouach, A. Bercuci, R. Berendes, D. Bertini, O. Bertini, O. Bezshyyko, P.P. Bhaduri, A. Bhasin, S.A. Bhat, W.A. Bhat, B. Bhattacharjee, A. Bhattacharyya, T.K. Bhattacharyya, S. Biswas, T. Blank, D. Blau, C. Blume, J. Brzychczyk, T. Bus, A. Bychkov, M. Cãlin, M. Caselle, A. Chakrabarti, S. Chatterjee, S. Chattopadhyay, A. Chaus, H. Cherif, P. Chudoba, E. Clerkin, M. Csanád, P. Dahm, Supriya Das, Das Susovan, J. de Cuveland, A. Demanov, D. Dementiev, Wendi Deng, Zhi Deng, H. Deppe, I. Deppner, O. Derenovskaya, M. Deveaux, Zhiguo Ding, Sheng Dong, E. Dorenskaya, P. Dorosz, A.K. Dubey, A. Dubla, M. Dürr, V.V. Elsha, D. Emschermann, H. Engel, T. Eşanu, J. Eschke, M. Esen, Xingming Fan, O. Fateev, C. Feier-Riesen, Sheng-Qin Feng, F. Fidorra, S.P.D. Figuli, D. Finogeev, P. Fischer, H. Flemming, J. Förtsch, P. Foka, U. Frankenfeld, V. Friese, E. Friske, I. Fröhlich, J. Frühauf, T. Galatyuk, R. Ganai, G. Gangopadhyay, Xin Gao, P. Gasik, T. Geßler, C. Ghosh, S.K. Ghosh, D. Giang, S. Gläßel, L. Golinka-Bezshyyko, O. Golosov, S. Golovnya, M. Golubeva, D. Golubkov, S. Gope, S. Gorbunov, S. Gorokhov, D. Gottschalk, P. Gryboś, F. Guber, M. Gumiński, A. Gupta, Yu. Gusakov, R. Haas, Dong Han, H. Hartmann, Shu He, J. Hehner, N. Heine, N. Herrmann, J.M. Heuser, C. Höhne, R. Holzmann, Dongdong Hu, Guangming Huang, Xinjie Huang, D. Hutter, M. Irfan, D. Ivanishchev, P. Ivanov, Victor Ivanov, Vladimir Ivanov, A. Ivashkin, A. Izvestnyy, H. Jahan, T. Janson, A. Jash, A. Jipa, I. Kadenko, P. Kähler, B. Kämpfer, K.-H. Kampert, R. Kapell, R. Karabowicz, N. Kargin, D. Karmanov, N. Karpushkin, E. Kashirin, V.K.S. Kashyap, K. Kasiński, G. Kasprowicz, A. Kazantsev, U. Kebschull, G. Kekelidze, M.M. Khan, S. Khan, A. Khanzadeev, F. Khasanov, A. Kiryakov, M. Kiš, I. Kisel, P. Kisel, S. Kiselev, T. Kiss, P. Klaus, R. Kłeczek, Ch. Klein-Bösing, V. Klochkov, P. Kmon, K. Koch, L. Kochenda, P. Koczoń, M. Kohn, R. Kolb, A. Kolozhvari, B. Komkov, M. Korolev, I. Korolko, O. Kot, R. Kotte, O. Kovalchuk, M. Koziel, G. Kozlov, V. Kozlov, P. Kravtsov, I. Kres, D. Kresan, M. Kruszewski, A.V. Kryanev, E. Kryshen, A. Krzyżanowska, W. Kucewicz, L. Kudin, I. Kudryashov, A. Kugler, P. Kuhl, Ajay Kumar, Ajit Kumar, L. Kumar, S.K. Kundu, A. Kurepin, N. Kurepin, P. Kurilkin, S. Kuznetsov, V. Kyva, V. Ladygin, C. Lara, E. Lavrik, I. Lazanu, A. Lebedev, S. Lebedev, E. Lebedeva, J. Lehnert, Y. Leifels, Chao Li, Yuanjing Li, V. Lindenstruth, Feng Liu, I. Lobanov, E. Lobanova, S. Löchner, P.-A. Loizeau, K. Łojek, O. Lubynets, J.A. Lucio Martínez, Xiaofeng Luo, A. Lymanets, Pengfei Lyu, N. Lyublev, Jian-Hao Ma, A. Maevskaya, S. Mahajan, P. Maj, Z. Majka, A. Malakhov, E. Malankin, D. Malkevich, B. Mallick, O. Malyatina, M. Mandal, V. Manko, O. Maragoto Rodriguez, A.M. Marin Garcia, J. Markert, T. Matulewicz, S. Mehta, M. Merkin, A. Meyer-Ahrens, J. Michel, P. Miedzik, L. Mik, K. Mikhailov, V. Mikhaylov, V. Militsija, M.F. Mir, D. Miskowiec, B. Mohanty, I. Momot, H. Morgenweck, T. Morhardt, S. Morozov, D. Mühlheim, W.F.J. Müller, C. Müntz, S. Mukherjee, P. Munkes, Yu. Murin, E. Nandy, L. Naumann, T. Nayak, F. Nickels, W. Niebur, V. Nikulin, D. Normanov, A. Olar, P. Otfinowski, J.H. Otto, E. Ovcharenko, Liang-ming Pan, I. Panasenko, S. Pandey, P. Parfenov, S. Parzhitskiy, V. Patel, C. Pauly, V. Petráček, M. Petri, M. Petriş, M. Petrovici, O. Petukhov, D. Pfeifer, P. Pfistner, K. Piasecki, J. Pietraszko, G. Pitsch, R. Płaneta, V. Plotnikov, V. Plujko, J. Pluta, K. Poźniak, S.K. Prasad, M. Prokudin, A. Prozorov, M. Pugach, V. Pugatch, A. Puntke, S. Querchfeld, L. Radulescu, S. Raha, P. Raisig, W. Raja, D. Ramazanov, J. Rautenberg, R. Ray, A. Redelbach, T. Rehman, A. Reinefeld, A. Reshetin, C. Ristea, O. Ristea, A. Rodriguez Rodriguez, F. Roether, R. Romaniuk, A. Rost, E. Rostchin, A. Roy, D. Roy, S. Roy, E. Rubio, A. Rustamov, Yu. Ryabov, R. Sahoo, P.K. Sahu, S.K. Sahu, J. Saini, F. Salem, S. Samanta, S.S. Sambyal, V. Samsonov, O. Sander, S. Sarangi, S. Sau, C. Schiaua, F. Schintke, C.J. Schmidt, D. Schmidt, H.R. Schmidt, P.M. Schneider, T. Schütt, F. Seck, I. Segal, I. Selyuzhenkov, A. Semennikov, A. Sen, A. Senger, P. Senger, A. Shabanov, A. Shabunov, N. Sharma, A.D. Sheremetiev, Shusu Shi, S. Shirinkin, M. Shiroya, M. Shitenkow, V. Shumikhin, I. Sibiryak, V. Sidorenko, C. Simon, C. Simons, A.K. Singh, B.K. Singh, C.P. Singh, O. Singh, R. Singh, V. Singhal, L. Škoda, D. Smith, Y. Söhngen, I. Som, D. Spicker, D. Stach, P. Staszel, D. Storozhyk, M. Strikhanov, J. Stroth, C. Stüllein, C. Sturm, Yuan Su, N. Sukhov, R. Sultanov, Yongjie Sun, Zhengyang Sun, D. Svirida, R. Szczygieł, A. Taranenko, O. Tarassenkova, T. Tölyhi, A. Toia, N. Topil'skaya, M. Träger, M. Traxler, E. Trifonova, Yu. Tsyupa, N.G. Tuturas, F. Uhlig, K.L. Unger, E. Usenko, D. Varga, I. Vassiliev, O. Vasylyev, R. Visinka, M. Völkl, E. Volkova, A. Vorobiev, A. Voronin, L. Wahmes, Botan Wang, Dong Wang, Tianxing Wang, Xinjian Wang, Yi Wang, A.A. Weber, M. Weber, P. Weidenkaff, F. Weiglhofer, J.P. Wessels, D. Wielanek, A. Wieloch, A. Wilms, D. Wójcik, Gy. Wolf, Ke-Jun Wu, Qiqi Wu, Junfeng Yang, Rongxing Yang, Zhongbao Yin, In-Kwon Yoo, Jianhui Yuan, I. Yushmanov, W. Zabołotny, Yu. Zaitsev, N.I. Zamiatin, H. Zbroszczyk, M. Zhalov, Qiunan Zhang, Xiaoming Zhang, Yu Zhang, Yan-Qing Zhao, Sheng Zheng, Daicui Zhou, Jian Zhou, Wenxiong Zhou, Xianglei Zhu, A. Zinchenko, I. Zivko, M. Żoładź, F. Zorn, W. Zubrzycka, P. Zumbruch, and M. Zyzak
Subjects: Nuclear and High Energy Physics
Published: 2021
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48. Measurements of total production cross sections for π++C , π++Al , K++C , and K++Al at 60 GeV/c and π++C and π++Al at 31 GeV/c

Author: Andrzej Rybicki, E. Kashirin, S.A. Bunyatov, Tatiana Lazareva, K. Marton, A. Bravar, A. Yu. Seryakov, G. A. Feofilov, B. A. Popov, V. V. Lyubushkin, A. E. Herve, A. V. Brandin, M. Unger, G. L. Melkumov, K. Kowalik, D. Tefelski, A. Marchionni, A. B. Kurepin, Alexander Malakhov, R. Płaneta, St Mrówczyński, I. Selyuzhenkov, O. Golosov, F.F. Valiev, A. Garibov, A. Ivashkin, A. Snoch, Andras Laszlo, O. Petukhov, B. T. Rumberger, Darko Veberič, Michal Koziel, B. Baatar, Fedor Guber, Ralf Ulrich, R. Tsenov, Michael Deveaux, Miroslaw Marek Kielbowicz, J. Puzović, M. Strikhanov, Markus Roth, B. Messerly, M. Słodkowski, Marek Gaździcki, A. Tefelska, V. Paolone, V. Klochkov, A. Wojtaszek-Szwarc, Vladimir Kovalenko, R. Zwaska, J. Stepaniak, K. Schmidt, H. J. Mathes, A. K. Yarritu, O. Busygina, M. Posiadala, Y. Nagai, M. Lewicki, S. Ilieva, Antoni Aduszkiewicz, M. Pavin, W. Bryliński, E. D. Zimmerman, D. Kolev, Rainer Arno Ernst Renfordt, P. Staszel, A. Marcinek, B. Maksiak, Zbigniew Wlodarczyk, K. Łojek, V. I. Kolesnikov, M. Ravonel, V. Tereshchenko, B. Łysakowski, Evgeny Andronov, A. D. Marino, M. B. Golubeva, S. Puławski, A. O. Merzlaya, M. Bogomilov, G. Stefanek, Katarzyna Grebieszkow, A. Blondel, A. Wickremasinghe, S.N. Igolkin, W. Dominik, S. Bhosale, D. Manić, H. Cherif, A. Rustamov, E. Richter-Wąs, G. B. Mills, E. Rondio, S. R. Johnson, N. Kargin, Dieter Røhrich, Tobiasz Czopowicz, Alexey Krasnoperov, V. A. Kireyeu, M. Naskręt, A. Korzenev, L. Fields, J. Dumarchez, W. Rauch, Alberica Toia, S. Morozov, Ludwik Turko, P. Dorosz, E. Kaptur, T. Matulewicz, O. Wyszyński, M. Walewski, A. Haesler, A. Taranenko, Vitalii Ozvenchuk, Vladimir Vechernin, M. Kuich, A. Sadovsky, Z. Fodor, S. Kowalski, Ł. Mik, H. Ströbele, L. Zambelli, Maciej Rybczyński, T. Antičić, M. Ćirković, Dag Larsen, M. Maćkowiak-Pawłowska, Mateusz Baszczyk, P. Podlaski, A. Damyanova, Viktor Matveev, P. Seyboth, N. Davis, Kreso Kadija, Adam Bzdak, Z. Majka, J. Brzychczyk, Ralph Engel, T. Susa, and Wojciech Kucewicz
Subjects: Physics, Large Hadron Collider, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Flux, 01 natural sciences, 7. Clean energy, Super Proton Synchrotron, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Heavy ion, Neutrino, Nuclear Experiment, 010306 general physics
Abstract: This paper presents several measurements of total production cross sections and total inelastic cross sections for the following reactions: π++C, π++Al, K++C, K++Al at 60 GeV/c, π++C and π++Al at 31 GeV/c. The measurements were made using the NA61/SPS Heavy Ion and Neutrino Experiment spectrometer at the CERN Super Proton Synchrotron (SPS). Comparisons with previous measurements are given and good agreement is seen. These interaction cross sections measurements are a key ingredient for neutrino flux prediction from the reinteractions of secondary hadrons in current and future accelerator-based long-baseline neutrino experiments.
Published: 2018
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49. Distributions of the largest fragment size in multifragmentation : traces of a phase transition

Author: J. Brzychczyk, W. Trautmann, T. Pietrzak, and A. Wieloch
Subjects: Physics, Phase transition, Nuclear Theory, 010308 nuclear & particles physics, FOS: Physical sciences, 01 natural sciences, Nuclear Theory (nucl-th), Fragment size, Fragmentation (mass spectrometry), Transition point, 0103 physical sciences, Thermodynamic limit, Kurtosis, Statistical physics, Nuclear Experiment (nucl-ex), Nuclear Experiment, 010306 general physics, Nuclear theory
Abstract: Distributions of the largest fragment charge are studied using the ALADIN data on fragmentation of $^{197}$Au projectiles at relativistic energies. The statistical measures skewness and kurtosis of higher-order fluctuations provide a robust indication of the transition point, linked to a phase transition in the thermodynamic limit. Extensive comparisons with predictions of a bond percolation model corroborate the high accuracy of this model in reproducing the distributions as well as the whole fragmentation pattern as represented by the measured charge correlations. In analogy to percolation, the pseudocritical and critical points are identified in the fragmentation data. Questions concerning the distinction between different models and between first- and second-order phase transitions are discussed., Comment: 29 pages, 13 figures, submitted to Phys. Rev. C
Published: 2018

50. Measurement of meson resonance production in $$\pi ^-+$$ π - + C interactions at SPS energies

Author: J. Stepaniak, A. Ivashkin, S.N. Igolkin, W. Dominik, Marek Gaździcki, V. Paolone, E. D. Zimmerman, M. B. Golubeva, A. Bravar, D. Manić, R.A. Rameika, X. Garrido, O. Petukhov, Z. Fodor, Dag Larsen, M. Ćirković, H. J. Mathes, E. Kaptur, G. A. Feofilov, Michael Deveaux, P. Staszel, A. Garibov, Antoni Aduszkiewicz, M. Ravonel, A. Haesler, Vladimir Vechernin, Yasir Ali, Alberica Toia, B. Messerly, D. Kolev, E. Richter-Wąs, V. I. Kolesnikov, S. Kowalski, A. Wojtaszek-Szwarc, A. Marcinek, M. Słodkowski, Markus Roth, Andrzej Rybicki, Antonio Ereditato, M. Unger, B. Lundberg, K. Kowalik, D. Tefelski, I. C. Mariş, S. Puławski, Evgeny Andronov, Vitalii Ozvenchuk, A. V. Brandin, Ilya Selyuzhenkov, M. Kuich, B. Maksiak, A. Wickremasinghe, Piotr Dorosz, G. B. Mills, A. B. Kurepin, A. Taranenko, S. Bhosale, B. T. Rumberger, A. O. Merzlaya, E. Rondio, O. Wyszyński, Tobiasz Czopowicz, V. Tereshchenko, Sergey V. Morozov, R. Engel, C. Wilkinson, S. Faas, A. Marchionni, V. A. Kireyeu, B. Łysakowski, K. Marton, J. Dumarchez, A. Yu. Seryakov, P. Seyboth, Maciej Rybczyński, T. Antičić, M. Pavin, N. Davis, Dieter Røhrich, S.A. Bunyatov, C. Francois, Katarzyna Grebieszkow, Tatiana Lazareva, Kreso Kadija, S. R. Johnson, M. Szuba, J. Puzović, A. Korzenev, W. Rauch, J. Hylen, M. Maćkowiak-Pawłowska, Wojciech Kucewicz, Mateusz Baszczyk, Ł. Mik, A. Damyanova, B. A. Popov, K. Schmidt, R. Płaneta, St Mrówczyński, T. Matulewicz, P. Podlaski, M. Walewski, H. Ströbele, V. V. Lyubushkin, A. Sadovsky, G. L. Melkumov, V. Matveev, A. Tefelska, B. Baatar, Ralf Ulrich, F. Guber, H. Dembinski, M. Strikhanov, M. Naskręt, M. Ruprecht, F.F. Valiev, M. Bogomilov, G. Stefanek, Darko Veberič, A. Snoch, Andras Laszlo, Michal Koziel, M. Posiadala, V. Klochkov, Vladimir Kovalenko, R. Zwaska, J. Brzychczyk, T. Susa, C. Pistillo, R. Tsenov, A. D. Marino, A. Hervé, Alexander Malakhov, Alexey Krasnoperov, A. Blondel, Y. Nagai, Zbigniew Wlodarczyk, A. Rustamov, L. Zambelli, Ludwik Turko, H. Cherif, Miroslaw Marek Kielbowicz, O. Busygina, M. Lewicki, and Rainer Arno Ernst Renfordt
Subjects: Physics, Measurement, Large Hadron Collider, Physics and Astronomy (miscellaneous), Meson, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, NA61/SHINE Collaboration, Resonance, Cosmic ray, 01 natural sciences, Spectral line, Nuclear physics, symbols.namesake, 0103 physical sciences, symbols, Feynman diagram, High Energy Physics::Experiment, Production (computer science), resonance production, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract: We present measurements of $\rho^0$, $\omega$ and K$^{*0}$ spectra in $\pi^{-} + $C production interactions at 158 GeV/c and $\rho^0$ 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 $x_\text{F}$ in the range $0 < x_\text{F} < 1$ and $0 < x_\text{F} < 0.5$ for 158 GeV/c 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.
Published: 2017
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