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1. Observation and spectroscopy of proton-unbound nucleus $^{21}$Al

Author

Kostyleva, D., Xu, X. -D., Mukha, I., Acosta, L., Bajzek, M., Casarejos, E., Ciemny, A. A., Cortina-Gil, D., Dominik, W., Dueñas, J. A., Espino, J. M., Estradé, A., Farinon, F., Fomichev, A., Geissel, H., Gómez-Camacho, J., Gorshkov, A., Grigorenko, L. V., Janas, Z., Kamiński, G., Kiselev, O., Knöbel, R., Korsheninnikov, A. A., Krupko, S., Kuich, M., Kurz, N., Litvinov, Yu. A., Marquinez-Durán, G., Martel, I., Mazzocchi, C., Nikolskii, E. Yu., Nociforo, C., Ordúz, A. K., Pfützner, M., Pietri, S., Pomorski, M., Prochazka, A., Rodríguez-Tajes, C., Rymzhanova, S., Sánchez-Benítez, A. M., Scheidenberger, C., Simon, H., Sitar, B., Slepnev, R., Stanoiu, M., Strmen, P., Sümmerer, K., Szarka, I., Takechi, M., Tanaka, Y. K., Weick, H., Winfield, J. S., Woods, P. J., and Zhukov, M. V.

Subjects
Nuclear Experiment
Abstract

We report on the observation of previously-unknown isotope $^{21}$Al, the first unbound aluminum isotope located beyond the proton dripline. The $^{21}$Al nucleus decays by one-proton (1p) emission, and its in-flight decays were detected by tracking trajectories of all decay products with micro-strip silicon detectors. The 1p-emission processes were studied by analyses of the measured angular correlations of decay products $^{20}$Mg+p. The 1p-decay energies of ground and low-lying excited states of $^{21}$Al, its mass excess and proton separation energy value $S_p$=$-1.1(1)$ MeV were determined., Comment: 6 pages, 7 figures

Published
2024
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2. Results of the 2022 ECFA Early-Career Researchers Panel survey on career prospects and diversity

Author

Allen, Julia, Augsten, Kamil, Benato, Giovanni, Kraljevic, Neven Blaskovic, Brizioli, Francesco, Diociaiuti, Eleonora, Hinger, Viktoria, Ilg, Armin, Jarkovská, Kateřina, Gajdošová, Katarína Křížková, Kuich, Magdalena, Lelek, Aleksandra, Moureaux, Louis, Pacey, Holly, Pietrzyk, Guillaume, Räuber, Géraldine, Ripellino, Giulia, Schramm, Steven, Shopova, Mariana, Sznajder, Pawel, and Waldron, Abby

Subjects
Physics - Physics and Society, High Energy Physics - Experiment, High Energy Physics - Theory, Physics - Accelerator Physics, Physics - Instrumentation and Detectors
Abstract

This document presents the outcomes of a comprehensive survey conducted among early career researchers (ECRs) in academic particle physics. Running from September 24, 2022, to March 3, 2023, the survey gathered responses from 759 ECRs employed in 39 countries. The study aimed to gain insights into the career prospects and experiences of ECRs while also delving into diversity and sociological aspects within particle physics research. The survey results are presented in a manner consistent with the survey choices. The document offers insights for the particle physics community, and provides a set of recommendations for enhancing career prospects, fostering diversity, and addressing sociological dimensions within this field., Comment: Editors: Julia Allen, Kate\v{r}ina Jarkovsk\'a, Aleksandra Lelek, Holly Pacey, Guillaume Pietrzyk and G\'eraldine R\"auber

Published
2024

3. $K_S^0$ meson production in inelastic p+p interactions at 31, 40 and 80 GeV/c beam momentum measured by NA61/SHINE at the CERN SPS

Author

Abgrall, N., Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antičić, T., Arsene, I. -C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bravar, A., Brylinski, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gazdzicki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Korzenev, A., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Mackowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskret, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozplochowski, L., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Swiderski, L., Szewinski, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszynski, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
Abstract

Measurements of $K_S^0$ meson production via its $\pi^{+} \pi^{-}$ decay mode in inelastic $\textit{p+p}$ interactions at incident projectile momenta of 31, 40 and 80 GeV/$c$ ($\sqrt{s_{NN}}=7.7, 8.8$ and $12.3$ GeV, respectively) are presented. The data were recorded by the NA61/SHINE spectrometer at the CERN Super Proton Synchrotron. Double-differential distributions were obtained in transverse momentum and rapidity. The mean multiplicities of $K_S^0$ mesons were determined to be $(5.95 \pm 0.19 (stat) \pm 0.22 (sys)) \times 10^{-2}$ at 31 GeV/$c$, $(7.61 \pm 0.13 (stat) \pm 0.31 (sys)) \times 10^{-2}$ at 40 GeV/$c$ and $(11.58 \pm 0.12 (stat) \pm 0.37 (sys)) \times 10^{-2}$ at 80 GeV/$c$. The results on $K^{0}_{S}$ production are compared with model calculations (Epos1.99, SMASH 2.0 and PHSD) as well as with published data from other experiments., Comment: arXiv admin note: substantial text overlap with arXiv:2106.07535

Published
2024

4. Search for a critical point of strongly-interacting matter in central $^{40}$Ar +$^{45}$Sc collisions at 13$A$-75$A$ GeV/$c$ beam momentum

Author

Collaboration, The NA61/SHINE, Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I. -C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Świderski, Ł., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

The critical point of strongly interacting matter is searched for at the CERN SPS by the NA61/SHINE experiment in central $^{40}$Ar +$^{45}$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., Comment: 38 pages, 20 figures

Published
2024

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

Author

NA61/SHINE, Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Arsene, I. -C., Bajda, M., Balkova, Y., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Borucka, A., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Olivier, A., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Reyna-Ortiz, V. Z., Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Rybka, D., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Świderski, Ł., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Vitiuk, O., Volkov, V., Wickremasinghe, A., Witek, K., Wójcik, K., Wyszyński, O., Zaitsev, A., Zherebtsova, E., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
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 GeV/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., Comment: 28 pages, 10 figures. The version to be published in Eur. Phys. J. C

Published
2023

6. Evidence of isospin-symmetry violation in high-energy collisions of atomic nuclei

Author

Collaboration, NA61/SHINE, Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Arsene, I. -C., Bajda, M., Balkova, Y., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Brandin, A., Brylinski, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Cirkovic, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gazdzicki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Mackowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morozov, S., Nagai, Y., Nakadaira, T., Naskret, M., Nishimori, S., Olivier, A., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzovic, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Rybka, D., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Swiderski, Ł., Szewinski, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberic, D., Vechernin, V. V., Vitiuk, O., Volkov, V., Wickremasinghe, A., Witek, K., Wójcik, K., Wyszynski, O., Zaitsev, A., Zherebtsova, E., Zimmerman, E. D., Zviagina, A., Zwaska, R., Group, the Theory, Giacosa, F., Gorenstein, M. I., Poberezhniuk, R., and Samanta, S.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Strong interactions preserve an approximate isospin symmetry between up ($u$) and down ($d$) quarks, part of the more general flavor symmetry. In the case of $K$ meson production, if this isospin symmetry were exact, it would result in equal numbers of charged ($K^+$ and $K^-$) and neutral ($K^0$ and $\overline K^{\,0}$) mesons in the final state. Here, we report results on the relative abundance of charged over neutral $K$ meson production in argon and scandium nuclei collisions at a center-of-mass energy of 11.9 GeV per nucleon pair. We find that the production of $K^+$ and $K^-$ mesons at mid-rapidity is $(18.4\pm 6.1)\%$ higher than that of the neutral $K$ mesons. Although with large uncertainties, earlier data on nucleus-nucleus collisions in the collision center-of-mass energy range $2.6 < \sqrt{s_{NN}} < 200$~\GeV are consistent with the present result. Using well-established models for hadron production, we demonstrate that known isospin-symmetry breaking effects and the initial nuclei containing more neutrons than protons lead only to a small (few percent) deviation of the charged-to-neutral kaon ratio from unity at high energies. Thus, they cannot explain the measurements. The significance of the flavor-symmetry violation beyond the known effects is 4.7$\sigma$ when the compilation of world data with uncertainties quoted by the experiments is used. New systematic, high-precision measurements and theoretical efforts are needed to establish the origin of the observed large isospin-symmetry breaking., Comment: The paper includes updates based on the final results of $K^+$ and $K^-$ yields published in Eur. Phys. J.C 84 (2024) 4, 416

Published
2023

7. Measurements of $\pi^\pm$, $K^\pm$, $p$ and $\bar{p}$ spectra in $^{40}$Ar+$^{45}$Sc collisions at 13$A$ to 150$A$ GeV/$c$

Author

Collaboration, NA61/SHINE, Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I. -C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskret, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Swiderski, L., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
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 $\pi^\pm$, $K^\pm$, $p$ and $\bar{p}$ produced in $^{40}$Ar+$^{45}$Sc collisions at beam momenta of 13$A$, 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$~\GeVc. The analysis uses the 10\% most central collisions, where the observed forward energy defines centrality. 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 placed in between those found in inelastic $p$+$p$ 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
2023
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8. Measurements of higher-order cumulants of multiplicity and net-electric charge distributions in inelastic proton–proton interactions by NA61/SHINE

Author

Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Arsene, I.-C., Bajda, M., Balkova, Y., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Borucka, A., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H.-J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Olivier, A., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Rybka, D., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Świderski, Ł., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Vitiuk, O., Volkov, V., Wickremasinghe, A., Witek, K., Wójcik, K., Wyszyński, O., Zaitsev, A., Zherebtsova, E., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Published
2024
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9. KS0GeV/c/ meson production in inelastic p+p interactions at 31, 40 and 80 KS0GeV/c/ beam momentum measured by NA61KS0GeV/c/SHINE at the CERN SPS

Author

Abgrall, N., Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I.-C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Korzenev, A., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H.-J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Swiderski, L., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Published
2024
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10. 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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11. $$K^0_S$$ 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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12. Measurements of $\pi^+$, $\pi^-$, $p$, $\bar{p}$, $K^+$ and $K^-$ production in 120 GeV/$c$ p + C interactions

Author

Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I. -C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, 1 O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H. -J., Matulewicz, 5T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Mills, G., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Świderski, Ł., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
Abstract

This paper presents multiplicity measurements of charged hadrons produced in 120 GeV/$c$ proton-carbon interactions. The measurements were made using data collected at the NA61/SHINE experiment during two different data-taking periods, with increased phase space coverage in the second configuration due to the addition of new subdetectors. Particle identification via $dE/dx$ was employed to obtain double-differential production multiplicities of $\pi^+$, $\pi^-$, $p$, $\bar{p}$, $K^+$ and $K^-$. These measurements are presented as a function of laboratory momentum in intervals of laboratory polar angle covering the range from 0 to 450 mrad. They provide crucial inputs for current and future long-baseline neutrino experiments, where they are used to estimate the initial neutrino flux.

Published
2023

13. Search for the critical point of strongly-interacting matter in ${}^{40}$Ar + ${}^{45}$Sc collisions at 150A GeV/c using scaled factorial moments of protons

Author

Collaboration, NA61/SHINE, Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I. -C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Christakoglou, P., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Diakonos, F., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kapoyannis, A., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panagiotou, A. D., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Swiderski, L., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Vassiliou, M., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

The critical point of dense, strongly interacting matter is searched for at the CERN SPS in ${}^{40}$Ar + ${}^{45}$Sc collisions at 150A GeV/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 critical proton pairs and the power of the correlation function is obtained based on a comparison with the Power-law Model developed for this purpose., Comment: 28 pages, 14 figures

Published
2023

14. Active target TPC for study of photonuclear reactions at astrophysical energies

Author

Kuich, M., Ćwiok, M., Dominik, W., Fijałkowska, A., Fila, M., Giska, A., Janas, Z., Kalinowski, A., Kierzkowski, K., Mazzocchi, C., Okliński, W., Zaremba, M., Grządziel, D., Lekki, J., Królas, W., Kulińska, A., Kurowski, A., Janik, W., Pieprzyca, T., Szklarz, Z., Scholz, M., Turzański, M., Wiącek, U., Woźnicka, U., Caciolli, A., Campostrini, M., Rigato, V., Gai, M., and Fynbo, H. O. U.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

A setup designed to study photonuclear reactions at astrophysical energies - an active target Time Projection Chamber was developed and constructed at the Faculty of Physics, University of Warsaw. The device was successfully employed in two experiments at the Institute of Nuclear Physics Polish Academy of Sciences in Cracow, in which {\gamma}- and neutron-induced reactions with CO2 gas target were measured. The reaction products were detected and their momenta reconstructed. Preliminary results are shown., Comment: Presented at Zakopane Conference on Nuclear Physics 2022

Published
2023

15. Two-pion femtoscopic correlations in Be+Be collisions at $\sqrt{s_{\textrm{NN}}} = 16.84$ GeV measured by the NA61/SHINE at CERN

Author

Collaboration, NA61/SHINE, Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I. -C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Świderski, Ł., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

This paper reports measurements of two-pion Bose-Einstein (HBT) correlations in Be+Be collisions at a beam momentum of 150$A\,\mbox{GeV}/\textit{c}$ by the $\mbox{NA61/SHINE}$ experiment at the CERN SPS accelerator. The obtained momentum space correlation functions can be well described by a L\'evy distributed source model. The transverse mass dependence of the L\'evy source parameters is presented, and their possible theoretical interpretations are discussed. The results show that the L\'evy exponent $\alpha$ is approximately constant as a function of $m_{\rm{T}}$ , and far from both the Gaussian case of $\alpha = 2$ or the conjectured value at the critical endpoint, $\alpha = 0.5$. The radius scale parameter $R$ shows a slight decrease in $m_{\rm{T}}$, which can be explained as a signature of transverse flow. Finally, an approximately constant trend of the intercept parameter $\lambda$ as a function of $m_{\rm{T}}$ was observed, different from measurement results at RHIC.

Published
2023
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16. 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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17. Search for a critical point of strongly-interacting matter in central 4045Ar + 4045Sc collisions at 13 A–75 A  GeV/c beam momentum

Author

Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I.-C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Christakoglou, P., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Diakonos, F., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kapoyannis, A., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A.D., Mathes, H.-J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panagiotou, A. D., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu, Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Swiderski, L., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Vassiliou, M., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Published
2024
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18. The ECFA Early Career Researcher's Panel: composition, structure, and activities, 2021 -- 2022

Author

Panel, ECFA Early-Career Researcher, Geanta, Andrei Alexandru, Amendola, Chiara, Apolinario, Liliana, Arling, Jan-Hendrik, Ashkenazi, Adi, Augsten, Kamil, Bagnaschi, Emanuele, Bakos, Evelin, Barak, Liron, Bastos, Diogo, Benato, Giovanni, Bilin, Bugra, Kraljevic, Neven Blaskovic, Brenner, Lydia, Brizioli, Francesco, Camper, Antoine, Camplani, Alessandra, Vidal, Xabier Cid, Dag, Hüseyin, Dias, Flavia de Almeida, Degens, Jordy, Diociaiuti, Eleonora, Dufour, Laurent, Dunne, Katherine, Erhardt, Filip, Ghinescu, Stefan-Alexandru, Gouskos, Loukas, Herzan, Andrej, Hinger, Viktoria, Hiti, Bojan, Ilg, Armin, Irles, Adrián, Jarkovská, Kateřina, Jovicevic, Jelena, Keszeghova, Lucia, Kirschenmann, Henning, Klaver, Suzanne, Konstantinou, Sotiroulla, Kuich, Magdalena, Kumari, Neelam, Gajdošová, Katarína Křížková, Lelek, Aleksandra, Lorenz, Jeanette, Carvalho, Ana Luisa, Major, Péter, Malczewski, Jakub, Mancini, Giada, Martikainen, Laura, Maurice, Émilie, Mee, Seán, Milosevic, Vukasin, Moravcova, Zuzana, Valero, Laura Moreno, Moureaux, Louis, Mäntysaari, Heikki, Nikiforou, Nikiforos, Otarid, Younes, Pitt, Michael, Placinta, Vlad-Mihai, Räuber, Géraldine, Ripellino, Giulia, Roberts, Bryn, Šantelj, Luka, Schramm, Steven, Shopova, Mariana, Skovpen, Kirill, Smolkovič, Aleks, Sokmen, Gamze, Sznajder, Paweł, Gomez, Lourdes Urda, Waldron, Abigail Victoria, Williams, Sarah, Zaccolo, Valentina, Zardoshti, Nima, and Zeyen, Manuel

Subjects
Physics - Accelerator Physics, Physics - Physics and Society
Abstract

The European Committee for Future Accelerators (ECFA) Early Career Researcher's (ECR) panel, which represents the interests of the ECR community to ECFA, officially began its activities in January 2021. In the first two years, the panel has defined its own internal structure, responded to ECFA requests for feedback, and launched its own initiatives to better understand and support the diverse interests of early career researchers. This report summarises the panel composition and structure, as well as the different activities the panel has been involved with during the first two years of its existence., Comment: Editors: Jan-Hendrik Arling, Emanuele Bagnaschi, Xabier Cid Vidal, Katherine Dunne, Viktoria Hinger, Armin Ilg, Henning Kirschenmann, Steven Schramm, Pawe{\l} Sznajder, Sarah Williams, Valentina Zaccolo

Published
2022

19. Measurements of $K^0_{\textrm{S}}$, $\Lambda$ and $\bar{\Lambda}$ production in 120 GeV/$c$ p + C interactions

Author

Collaboration, NA61/SHINE, Adhikary, H., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I. -C., Balkova, Y., Baszczyk, M., Battaglia, D., Bhosale, S., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Dembinski, H., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Haug, M., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Johnson, S. R., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Korzenev, A., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Mariş, I. C., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Messerly, B., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prado, R. R., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Ruprecht, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shiraishi, Y., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Szuba, M., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Ulrich, R., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
Abstract

This paper presents multiplicity measurements of $K^0_{\textrm{S}}$, $\Lambda$, and $\bar{\Lambda}$ produced in 120 GeV/$c$ proton-carbon interactions. The measurements were made using data collected at the NA61/SHINE experiment during two different periods. Decays of these neutral hadrons impact the measured $\pi^+$, $\pi^-$, $p$ and $\bar{p}$ multiplicities in the 120 GeV/$c$ proton-carbon reaction, which are crucial inputs for long-baseline neutrino experiment predictions of neutrino beam flux. The double-differential multiplicities presented here will be used to more precisely measure charged-hadron multiplicities in this reaction, and to re-weight neutral hadron production in neutrino beam Monte Carlo simulations.

Published
2022

20. Measurement of Hadron Production in $\pi^-$-C Interactions at 158 and 350 GeV/c with NA61/SHINE at the CERN SPS

Author

Collaboration, NA61/SHINE, Adhikary, H., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I. -C., Balkova, Y., Baszczyk, M., Battaglia, D., Bhosale, S., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Dembinski, H., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Haug, M., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Johnson, S. R., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Korzenev, A., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Mariş, I. C., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Merzlaya, A. O., Messerly, B., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prado, R. R., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumyantsev, M., Ruprecht, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shiraishi, Y., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Szuba, M., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Ulrich, R., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
Nuclear Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract

We present a measurement of the momentum spectra of $\pi^\pm$, K$^\pm$, p$^\pm$, $\Lambda$, $\bar{\Lambda}$ and K$^{0}_{S}$ produced in interactions of negatively charged pions with carbon nuclei at beam momenta of 158 and 350 GeV/c. The total production cross sections are measured as well. The data were collected with the large-acceptance spectrometer of the fixed target experiment NA61/SHINE at the CERN SPS. The obtained double-differential $p$-$p_T$ spectra provide a unique reference data set with unprecedented precision and large phase-space coverage to tune models used for the simulation of particle production in extensive air showers in which pions are the most numerous projectiles.

Published
2022

21. 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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22. Diagram of High Energy Nuclear Collisions

Author

Andronov, Evgeny, Kuich, Magdalena, and Gaździcki, Marek

Subjects
High Energy Physics - Phenomenology, High Energy Physics - Experiment
Abstract

Many new particles, mostly hadrons, are produced in high energy collisions between atomic nuclei. The most popular models describing the hadron production process are based on the creation, evolution and decay of resonances, strings or quark-gluon plasma. The validity of these models is under vivid discussion, and it seems that a common framework for this discussion is missing. Here we introduce the diagram of high energy nuclear collisions, where domains of the dominance of different hadron-production processes in the space of laboratory-controlled parameters, the collision energy and nuclear-mass number of colliding nuclei, are indicated. We argue, the recent experimental results locate boundaries between the domains, allowing for the first time to sketch an example diagram. Finally, we discuss the immediate implications for experimental measurements and model development following the sketch., Comment: Summary

Published
2022

23. Measurements of π±K±p¯40Ar+45ScGeV/c, π±K±p¯40Ar+45ScGeV/c, p and π±K±p¯40Ar+45ScGeV/c spectra in π±K±p¯40Ar+45ScGeV/c collisions at 13A to 150A π±K±p¯40Ar+45ScGeV/c

Author

Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I.-C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H.-J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Reyna Ortiz, V. Z., Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A.Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Swiderski, L., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Published
2024
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24. Status and initial physics performance studies of the MPD experiment at NICA

Author

MPD Collaboration, Abgaryan, V., Kado, R. Acevedo, Afanasyev, S. V., Agakishiev, G. N., Alpatov, E., Altsybeev, G., Hernández, M. Alvarado, Andreeva, S. V., Andreeva, T. V., Andronov, E. V., Anfimov, N. V., Aparin, A. A., Astakhov, V. I., Atkin, E., Aushev, T., Averichev, G. S., Averyanov, A. V., Ayala, A., Babkin, V. A., Babutsidze, T., Balashov, I. A., Bancer, A., Barabanov, M. Yu., Baranov, D. A., Baranova, N., Barbashina, N., Baskakov, A. E., Batyuk, P. N., Bazhazhin, A. G., Baznat, D., Baznat, M., Bazylev, S. N., Beltran, L. G. E., Belyaev, A. V., Belyaev, S. E., Belyaeva, E. V., Benda, V., Bielewicz, M., Bietenholz, W., Blaschke, D., Blau, D., Bogdanova, G., Bogoslovsky, D. N., Boguslavsky, I. V., Boos, E., Botvina, A., Bravina, L., Bulychjov, S. A., Buryakov, M. G., Butenko, A. V., Butorin, A. V., Buzin, S. G., Bychkov, A., Bychkov, A. V., Cabellero, R. R., Arciniega, D. Chaires, Chalyshev, V. V., Chen, W., Chen, Z., Cheplakova, V. A., Chepurnov, V. F., Chepurnov, V. V., Cheremnova, M., Cheremukhina, G. A., Chlad, L., Chudoba, P., Chumakov, P. V., Cuautle, E., Czarnynoga, M., Dabrowska, B., Dąbrowski, D., Demanov, A., Dementyev, D. V., Deng, Z., Dmitriev, A. V., Dodokhov, V. Kh., Dolbilina, E. V., Dolbilov, A. G., Domínguez, I., Dominik, W., Donets, D. E., Dronik, V., Dubrovin, A. Yu., Dudziński, A., Dulov, P., Dunin, N. V., Dunin, V. B., Dyatlov, V., Dydyshko, V. F., Efremov, A. A., Egorov, D. S., Elsha, V. V., Emelyanov, A. E., Emelyanov, N. E., Ermakova, V. G., Eyyubova, G., Fang, D., Fateev, O. V., Fedin, O., Fedotov, Yu. I., Fedyunin, A. A., Feng, C., Feng, S., Feofilov, G. A., Filippov, I. A., Fischer, T., Formenko, K., Gaganova, M. A., Gandzhelashvili, T. T., Gavrishchuk, O. P., Geraksiev, N., Gerasimov, S. E., Gertsenberger, K. V., Golosov, O., Golovatyuk, V. M., Golubeva, M., Goncharov, I., Gorbunov, N. V., Grabowski, M., Grodzicka-Kobyłka, M., Grodzicki, K., Grzyb, J., Guber, F., Guirado, A., Guskov, A. V., Guzey, V., He, W., Rosas, L. A. Hernández, Huang, M., Huang, Y., Idczak, R., Idrisov, D., Igolkin, S. N., Ilieva, M., Isupov, A. Yu., Ivanishchev, D., Ivanov, A. V., Ivanytskyi, O., Ivashkin, A., Izvestnyy, A., Jaworska, E., Jiao, J., Kadochnikov, I., Kakurin, S. I., Kankiewicz, P., Kapishin, M. N., Karmanov, D., Karpushkin, N., Kartashova, L. A., Kashirin, E., Kasprowicz, G., Kasumov, Yu., Kechechyan, A. O., Kekelidze, G. D., Kekelidze, V. D., Khanzadeev, A., Kharlamov, P., Khilinova, O. A., Khodzhibagiyan, G. G., Khosravi, N., Khvorostukhin, A., Khyzhniak, Y., Kikvadze, V., Kireyeu, V. A., Kiryushin, Yu. T., Kiryutin, I. S., Kisiel, A., Klyuev, A., Klyukhin, V., Kochenda, L., Kodolova, O., Kolesnikov, V. I., Kolozhvari, A., Komarov, V. G., Kondratiev, V. P., Korolev, M., Korotkikh, V., Kotov, D., Kovalenko, S., Kovalenko, V. N., Kowalski, S., Kozlenko, N. A., Krakowiak, M., Kramarenko, V. A., Krasnova, L. M., Kravchov, P., Krechetov, Yu. F., Kruglova, I. V., Krylov, A. V., Krylov, V., Kryshen, E., Kryukov, A., Kubankin, A., Kugler, A., Kuich, M., Kukarnikov, S. I., Kuklin, S. N., Kukulin, V., Kuleshov, S., Kulikov, E. A., Kulikov, V. V., Kurepin, A., Kushpil, S., Kuzmin, V. S., Kvita, J., Lanskoy, D., Lashmanov, N. A., Ławryńczuk, M., Lazareva, T. V., Lednicky, R., Li, S., Li, Z., Litvinenko, A. G, Litvinenko, E. I., Litvinova, G. N., Liu, D., Liu, F., Livanov, A. N., Lobanov, V. I., Lobanov, Yu. Yu., Lobastov, S. P., Lokhtin, I., Lu, P., Lukstinsh, Yu. R., Luong, B. V., Łysakowski, B., Ma, Y., Machavariani, A., Madigozhin, D. T., Maksiak, B., Maksimenkova, V. I., Malakhov, A. I., Malayev, M., Maldonado, I., Maldonado, J. C., Malikov, I. V., Malinina, L., Maltsev, N. A., Maria, N. V., Shopova, M., Martemianov, M. A., Maslan, M., Matsyuk, M. A., Matulewicz, T., Melnikov, D. G., Merkin, M., Merts, S. P., Meshkov, I. N., Mianowski, S., Migulina, I. I., Mikhaylov, K. R., Milewicz-Zalewska, M., Minaev, Yu. I., Molokanova, N. A., Moreno-Barbosa, E., Morozov, S., Moshkin, A. A., Moshkovsky, I. V., Moskovsky, A. E., Movchan, S. A., Mudrokh, A. A., Mukhin, K. A., Murin, Yu. A., Musul'manbekov, Zh. Zh., Myalkovsky, V. V., Myktybekov, D., Paredes, L. L. Narvaez, Nauruzbaev, D. K., Nazarova, E. N., Nechaevsky, A. V., Nesterov, D. G., Nie, M., Nieto-Marín, P. A., Nigmatkulov, G., Nikitin, V. A., Nioradze, M., Niu, X., Nowak, W., Nozka, L., Oleks, I. A., Olshevsky, A. G., Orlov, O. E., Parfenov, P., Parzhitsky, S. S., Patiño, M. E., Pavlyukevich, V. A., Penkin, V. A., Peresedov, V. F., Peresunko, D., Peshekhonov, D. V., Petrov, V. A., Petrushanko, S., Petukhov, O., Piasecki, K., Pichugina, D. V., Piloyan, A., Pilyar, A. V., Piyadin, S. M., Plamowski, S., Platonova, M., Pluta, J., Potanina, A. E., Potrebenikov, Yu. K., Poźniak, K., Prokhorova, D. S., Prokofiev, N. A., Protoklitow, F., Prozorov, A., Pszczel, D., Puchkov, A. M, Pukhaeva, N., Puławski, S., Rakhmatullina, A. R., Herrera, L. F. Rebolledo, Reyna-Ortiz, V. Z., Riabov, V., Riabov, Yu., Ridinger, N. O., Rikhvitsky, V., Rodriguez-Cahuantzi, M., Rogachevsky, O. V., Rogov, V. Yu., Rokita, P., Romanenko, G., Romaniuk, R., Romanova, A., Rosłon, K., Rossler, T., Calderon, E. F. Rozas, Rufanov, I. A., Rumyantsev, M. M., Rustamov, A., Rybakov, A. A., Rybczyński, M., Rybka, D., Rymshina, A. A., Rzadkiewicz, J., Sadygov, Z. Ya. -O., Samsonov, V. A., Sandul, V. S., Sattarov, R., Savenkov, A. A., Schmidt, K., Seballos, S. S., Sedykh, S. A., Selyuzhenkov, I., Semchukova, T. V., Semenov, A. Yu., Semenova, I. A., Sergeev, S. V., Sergeeva, N. A., Serochkin, E. V., Seryakov, A. Yu., Shabunov, A. V., Shanidze, R., Shcheglova, L., Shchinov, B. G., Shen, C., Shen, Y., Sherbakov, A. N., Sheremetyev, A. D., Sheremetyeva, A. I., Shindin, R. A., Shipunov, A. V., Shitenkov, M. O., Shtejer, D. K., Shukla, U., Shunko, A. A., Shutov, A. V., Shutov, V. B., Sidorin, A. O., Skwira-Chalot, I., Slepnev, I. V., Slepnev, V. M., Slepov, I. P., Solnyshkin, Yu. A., Solomin, A., Solovyeva, T., Sorin, A. S., Starecki, T., Stefanek, G., Stepaniak, J., Streletskaya, E. A., Strikhanov, M., Strizh, T. A., Strizhak, A., Sukhov, N. V., Sukhovarov, S. I., Sun, X., Surkov, N. N., Suvarieva, D., Svalov, V. L., Świderski, L., Syntfeld-Każuch, A., Szcześniak, T., Szewiński, J., Tang, Z., Taranenko, A., Tarasov, N. A., Tcholakov, V., Tejeda-Muñoz, G., Tejeda-Yeomans, M. E., Terletskiy, A. V., Teryaev, O. V., Tikhomirov, V. V., Timoshenko, A. A., Tkachev, G. P., Toneev, V. D., Topilin, N. D., Traczyk, T., Tretyakova, T., Trubnikov, A. V., Trubnikov, G. V., Tyapkin, I. A., Udovenko, S. Yu., Poblete, P. A. Ulloa, Urbaniak, M., Urumov, V., Valenzuela-Cazares, L., Valiev, F. F., Vasendina, V. A., Vasiliev, I. N., Vasilyev, A., Vechernin, V. V., Vereshchagin, S. V., Vladimirova, N. N., Vlasov, N. V., Vodopyanov, A. S., Vokhmyanina, K., Volkov, V., Volodina, O. A., Voronin, A. A., Voronyuk, V., Wang, F., Wang, J., Wang, X., Wang, Y., Wieczorek, P., Wielanek, D., Włodarczyk, Z., Wójcik, K., Wu, K., Xiao, Z., Xu, Q., Yang, C., Yang, H., Yang, Q., Yarygin, G. A., Yordanova, L., Yu, T., Yuan, Z., Yurevich, V. I., Zabołotny, W., Zabrodin, E., Zaitseva, M. V., Saa, J. A. Zamora, Zamyatin, N. I., Zaporozhets, S. A., Zarochentsev, A. K., Zepeda-Fernández, C. H., Zha, W., Zhalov, M., Zhang, Y., Zhang, Z., Zhao, C., Zherebchevsky, V. I., Zhezher, V. N., Zhong, C., Zhou, W., Zhu, X., Zinchenko, A. I., and Zinchenko, D. A.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment, Nuclear Theory
Abstract

The Nuclotron-base Ion Collider fAcility (NICA) is under construction at the Joint Institute for Nuclear Research (JINR), with commissioning of the facility expected in late 2022. The Multi-Purpose Detector (MPD) has been designed to operate at NICA and its components are currently in production. The detector is expected to be ready for data taking with the first beams from NICA. This document provides an overview of the landscape of the investigation of the QCD phase diagram in the region of maximum baryonic density, where NICA and MPD will be able to provide significant and unique input. It also provides a detailed description of the MPD set-up, including its various subsystems as well as its support and computing infrastructures. Selected performance studies for particular physics measurements at MPD are presented and discussed in the context of existing data and theoretical expectations., Comment: 53 pages, 68 figures, submitted as a Review article to EPJA

Published
2022
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25. $K^{*}(892)^0$ meson production in inelastic $p+p$ interactions at 40 and 80 GeV/$c$ beam momenta measured by NA61/SHINE at the CERN SPS

Author

Collaboration, NA61/SHINE, Acharya, A., Adhikary, H., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I. -C., Baszczyk, M., Battagia, D., Bhosale, S., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Johnson, S. R., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kolesnikov, R., Kolev, D., Korzenev, A., Koshio, J., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., László, A., Lewicki, M., Łojek, K., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Matyja, A., Melkumov, G. L., Merzlaya, A., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadhu, S., Sakashita, K., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Measurements of $K^{*}(892)^0$ resonance production via its $K^{+}\pi^{-}$ decay mode in inelastic $p+p$ collisions at beam momenta 40 and 80 GeV/$c$ ($\sqrt{s_{NN}}=8.8$ and 12.3 GeV) are presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The \textit{template} method was used to extract the $K^{*}(892)^0$ signal. Transverse momentum and rapidity spectra were obtained. The mean multiplicities of $K^{*}(892)^0$ mesons were found to be $(35.1 \pm 1.3 \mathrm{(stat)} \pm 3.6 \mathrm{(sys)) \cdot 10^{-3}}$ at 40 GeV/$c$ and $(58.3 \pm 1.9 \mathrm{(stat)} \pm 4.9 \mathrm{(sys)) \cdot 10^{-3}}$ at 80 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 $K^{*}(892)^0$ 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., Comment: version published in Eur. Phys. J. C

Published
2021
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26. Highlights from the NA61/SHINE strong-interactions programme

Author

Kuich, Magdalena

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

NA61/SHINE is a multipurpose fixed-target facility at the CERN SPS. The main goals of the NA61/SHINE strong-interactions programme are to discover the critical point of strongly interacting matter as well as to study the properties of the onset of deconfinement. In order to reach these goals, a study of hadron production properties is performed in nucleus-nucleus, proton-proton and proton-nucleus interactions as a function of collision energy and size of the colliding nuclei. In this contribution, the NA61/SHINE results from a strong interaction measurement programme are presented. In particular, the latest results from different reactions p+p, Be+Be, Ar+Sc, and Pb+Pb on hadron spectra, as well as intermittency, higher-order moments of multiplicity fluctuations and spectator induced electromagnetic effects are discussed., Comment: arXiv admin note: text overlap with arXiv:2112.01877

Published
2021
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28. Results of the 2021 ECFA Early-Career Researcher Survey on Training in Instrumentation

Author

Panel, ECFA Early-Career Researcher, Aggarwal, Anamika, Amendola, Chiara, Apolinario, Liliana, Arling, Jan-Hendrik, Ashkenazi, Adi, Augsten, Kamil, Baglio, Julien, Bakos, Evelin, Barak, Liron, Bastos, Diogo, Bilin, Bugra, Biondi, Silvia, Kraljevic, Neven Blaskovic, Brenner, Lydia, Brizioli, Francesco, Camper, Antoine, Camplani, Alessandra, Vidal, Xabier Cid, Dag, Hüseyin, Dias, Flavia de Almeida, Diociaiuti, Eleonora, van Doremalen, Lennart, Dunne, Katherine, Erhardt, Filip, Manteca, Pedro Fernández, Geanta, Andrei Alexandru, Ghinescu, Stefan Alexandru, Gouskos, Loukas, Herzan, Andrej, Hinger, Viktoria, Hiti, Bojan, Ilg, Armin, Inguglia, Gianluca, Irles, Adrián, Jansen, Hendrik, Jarkovská, Kateřina, Keszeghova, Lucia, Kirschenmann, Henning, Konstantinou, Sotiroulla, Kuich, Magdalena, Kumari, Neelam, Gajdošová, Katarína Křížková, Lelek, Aleksandra, Lorenz, Jeanette, Carvalho, Ana Luisa, Malczewski, Jakub, Mancini, Giada, Mann, Alexander, Martikainen, Laura, Maurice, Émilie, Mee, Seán, Milenovic, Predrag, Milosevic, Vukasin, Moravcova, Zuzana, Valero, Laura Moreno, Moureaux, Louis, Mäntysaari, Heikki, Nikiforou, Nikiforos, Otarid, Younes, Pearce, Alex, Pitt, Michael, Placinta, Vlad-Mihai, Ripellino, Giulia, Roberts, Bryn, Šantelj, Luka, Schramm, Steven, Shopova, Mariana, Skovpen, Kirill, Smolkovič, Aleks, Sokmen, Gamze, Sznajder, Paweł, Waldron, Abigail Victoria, Williams, Sarah, Zaccolo, Valentina, and Zeyen, Manuel

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The European Committee for Future Accelerators (ECFA) Early-Career Researchers (ECR) Panel was invited by the ECFA Detector R&D Roadmap conveners to collect feedback from the European ECR community. A working group within the ECFA ECR panel held a Townhall Meeting to get first input, and then designed and broadly circulated a detailed survey to gather feedback from the larger ECR community. A total of 473 responses to this survey were received, providing a useful overview of the experiences of ECRs in instrumentation training and related topics. This report summarises the feedback received, and is intended to serve as an input to the ECFA Detector R&D Roadmap process., Comment: Editors: Jan-Hendrik Arling, Katherine Dunne, Armin Ilg, Adri\'an Irles, Predrag Milenovic, Steven Schramm, Mariana Shopova, and Sarah Williams

Published
2021

29. $K^{0}_{S}$ meson production in inelastic $\textit{p+p}$ interactions at 158 GeV/c beam momentum measured by NA61/SHINE at the CERN SPS

Author

Acharya, A., Adhikary, H., Allison, K. K., Amin, N., Andronov, E. V., Antičić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blonde, A., Bogomilov, M., Bondar, Y., Brandin, A., Bravar, A., Brylinski, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Enge, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gazdzicki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Kozie, M., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Mackowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Nagai, Y., Naskret, M., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadhu, S., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Unger, M., Uzhva, D., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Wójcik, K., Wyszynski, O., Zaitsev, A., Zimmerman, E. D., and Zwaska, R.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
Abstract

The production of $K^{0}_{S}$ mesons in inelastic $\textit{p+p}$ collisions at beam momentum 158 GeV/c ($\sqrt{s_{NN}}=17.3$ 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 $K^{0}_{S}$ was determined to be $0.162 \pm 0.001 (stat.) \pm 0.011 (sys.)$. The results on $K^{0}_{S}$ 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
2021
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30. Measurements of $\Xi\left(1530\right)^{0}$ and $\overline{\Xi}\left(1530\right)^{0}$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment

Author

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

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Double-differential yields of $\Xi\left(1530\right)^{0}$ and $\overline{\Xi}\left(1530\right)^{0}$ resonances produced in \pp interactions were measured at a laboratory beam momentum of 158~\GeVc. This measurement is the first of its kind in \pp interactions below LHC energies. It was performed at the CERN SPS by the \NASixtyOne collaboration. Double-differential distributions in rapidity and transverse momentum were obtained from a sample of 26$\cdot$10$^6$ inelastic events. The spectra are extrapolated to full phase space resulting in mean multiplicity of $\Xi\left(1530\right)^{0}$ (6.73 $\pm$ 0.25 $\pm$ 0.67)$\times10^{-4}$ and $\overline{\Xi}\left(1530\right)^{0}$ (2.71 $\pm$ 0.18 $\pm$ 0.18)$\times10^{-4}$. 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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31. 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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32. 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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34. Spectra and mean multiplicities of $\pi^{-}$ in $central$ ${}^{40}$Ar+${}^{45}$Sc collisions at 13$A$, 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$ beam momenta measured by the NA61/SHINE spectrometer at the CERN SPS

Author

collaboration, NA61/SHINE, Acharya, A., Adhikary, H., Allison, K. K., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadhu, S., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Uzhva, D., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., and Zwaska, R.

Subjects
High Energy Physics - Experiment
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 $\pi^{-}$ mesons produced in $central$ ${}^{40}$Ar+${}^{45}$Sc collisions at beam momenta of 13$A$, 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$. 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., Comment: 40 pages, 24 figures. arXiv admin note: text overlap with arXiv:2008.06277; added the NA61/SHINE collaboration to authors and missing grant number

Published
2021

35. Analysis of the Effectiveness of Coordinated Care in the Management of Pharmacotherapy of Patients with Hypertension and Comorbidities in Primary Care—Preliminary Reports

Author

Aleksandra Galic, Anna Tyranska-Fobke, Aleksandra Kuich, Andrzej Zapasnik, and Marlena Robakowska

Subjects
coordinated care, hypertension, primary care, pharmacotherapy, Medicine
Abstract

Hypertension (HTN) is the dominant cause of cardiovascular disease and premature death worldwide. Also in Poland, the number of people with HTN is steadily increasing. In order to improve care for patients with HTN and other chronic diseases, a pilot of the POZ PLUS coordinated-care model was introduced. The pilot ran from 1 July 2018 to 30 September 2021 at 47 facilities nationwide. The purpose of this study was to conduct a preliminary analysis of the effectiveness of this model of care. The study focused on the management of pharmacotherapy in patients with hypertension and other comorbidities. The study included a group of 90 patients with HTN. Fifty-nine people were in the coordinated-care study group and 31 in the control group. Data were collected from electronic medical records. The analysis showed a trend toward greater blood-pressure reduction in patients under coordinated care (−4 mmHg difference in systolic blood pressure between the second and first visits and −2 mmHg difference in diastolic pressure between the second and first visits, p = 0.180 and p = 0.156). This suggests the preliminary conclusion that coordinated care in the PCP plus model might have positively affected the outcomes of patients with HTN. Further studies on the subject are planned.

Published
2024
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36. Measurement of the production cross section of 31 GeV/$c$ protons on carbon via beam attenuation in a 90-cm-long target

Author

Collaboration, NA61/SHINE, Acharya, A., Adhikary, H., Aduszkiewicz, A., Allison, K. K., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Pavin, M., Petukhov, O., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadhu, S., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Uzhva, D., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Wojcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., and Zwaska, R.

Subjects
High Energy Physics - Experiment
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 $\sigma_\mathrm{prod}~=~227.6~\pm~0.8\mathrm{(stat)}~_{-~3.2}^{+~1.9}\mathrm{(sys)}~{-~0.8}\mathrm{(mod)}$ 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., Comment: 20 pages, 10 figures

Published
2020
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37. 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

Collaboration, NA61/SHINE, Acharya, A., Adhikary, H., Aduszkiewicz, A., Allison, K. K., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Mrówczyński, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadhu, S., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Uzhva, D., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Włodarczyk, Z., Wójcik, K., Wyszyński, O., Zimmerman, E. D., and Zwaska, R.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
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 $\pi^\pm$, $K^\pm$, $p$ and $\bar{p}$ produced in the 20$\%$ most $central$ $^7$Be+$^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$. 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., Comment: 52 pages, 38 figures

Published
2020
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38. Measurements of multiplicity fluctuations of identified hadrons in inelastic proton-proton interactions at the CERN Super Proton Synchrotron

Author

Collaboration, NA61/SHINE, Acharya, A., Adhikary, H., Aduszkiewicz, A., Allison, K. K., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadhu, S., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Uzhva, D., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Wojcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Measurements of multiplicity fluctuations of identified hadrons produced in inelastic p+p interactions at 31, 40, 80, and 158~\GeVc beam momentum are presented. Three different measures of multiplicity fluctuations are used: the scaled variance $\omega$ and strongly intensive measures $\Sigma$ and $\Delta$. These fluctuation measures involve second and first moments of joint multiplicity distributions. Data analysis is performed 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., Comment: 32 pages, 14 figures

Published
2020
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39. Measurements of $\pi^-$ production in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 150$A$GeV/$c$ in the NA61/SHINE experiment at the CERN SPS

Author

Collaboration, NA61/SHINE, Acharya, A., Adhikary, H., Aduszkiewicz, A., Allison, K. K., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Mrówczyński, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadhu, S., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Uzhva, D., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Włodarczyk, Z., Wojcik, K., Wyszyński, O., Zimmerman, E. D., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
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 $\pi^{-}$ mesons produced in the 5\% most \textit{central} $^7$Be+$^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$ obtained by the so-called $h^-$ 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 \textit{central} $^7$Be+$^9$Be collisions is close to that in central Pb+Pb collisions up to 75$A$GeV/$c$. However, at the top SPS energy the result is close to the one for inelastic nucleon-nucleon 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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40. Greibach Normal Form for $\omega$-Algebraic Systems and Weighted Simple $\omega$-Pushdown Automata

Author

Droste, Manfred, Dziadek, Sven, and Kuich, Werner

Subjects
Computer Science - Formal Languages and Automata Theory, F.4.3, F.4.2
Abstract

In weighted automata theory, many classical results on formal languages have been extended into a quantitative setting. Here, we investigate weighted context-free languages of infinite words, a generalization of $\omega$-context-free languages (Cohen, Gold 1977) and an extension of weighted context-free languages of finite words (Chomsky, Sch\"utzenberger 1963). As in the theory of formal grammars, these weighted context-free languages, or $\omega$-algebraic series, can be represented as solutions of mixed $\omega$-algebraic systems of equations and by weighted $\omega$-pushdown automata. In our first main result, we show that (mixed) $\omega$-algebraic systems can be transformed into Greibach normal form. We use the Greibach normal form in our second main result to prove that simple $\omega$-reset pushdown automata recognize all $\omega$-algebraic series. Simple $\omega$-reset automata do not use $\epsilon$-transitions and can change the stack only by at most one symbol. These results generalize fundamental properties of context-free languages to weighted context-free languages.

Published
2020
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41. Measurements of $\Xi^{-}$ and $\overline{\Xi}^{+}$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment

Author

Collaboration, NA61/SHINE, Aduszkiewicz, A., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Mrówczyński, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Uzhva, D., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Włodarczyk, Z., Wojcik, K., Wyszyński, O., Zimmerman, E. D., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

The production of $\Xi(1321)^{-}$ and $\overline{\Xi}(1321)^{+}$ hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 GeV/textit{c}. Double differential distributions in rapidity y and transverse momentum $p_{T}$ 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 $\Xi^{-}$ and $\overline{\Xi}^{+}$. The rapidity and transverse momentum spectra are compared to transport model predictions. The $\Xi^{-}$ mean multiplicity in inelastic p+p interactions at 158~\GeVc is used to quantify the strangeness enhancement in A+A collisions at the same centre-of-mass energy per nucleon pair.

Published
2020

42. Two-particle correlations in azimuthal angle and pseudorapidity in central $^7$Be+$^9$Be collisions at the CERN Super Proton Synchrotron

Author

Collaboration, NA61/SHINE, Aduszkiewicz, A., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Mrówczyński, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Uzhva, D., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Włodarczyk, Z., Wojcik, K., Wyszyński, O., Zimmerman, E. D., and Zwaska, R.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

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 19$A$, 30$A$, 40$A$, 75$A$, and 150$A$ GeV/$c$. 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., Comment: 28 pages, 17 figures, applied corrections after journal review

Published
2020
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43. The Forward TPC system of the NA61/SHINE experiment at CERN: a tandem TPC concept

Author

Rumberger, Brant, Aduszkiewicz, Antoni, Boissevain, Jan, Kuich, Magdalena, László, András, Nagai, Yoshikazu, Oláh, László, Podlaski, Piotr, Varga, Dezső, Wensveen, Martin, and Zimmerman, Eric D.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

This paper presents the Forward Time Projection Chamber (FTPC) system of the NA61/SHINE experiment at the CERN SPS accelerator. This TPC system applies a novel tandem-TPC design to reduce the background originating from particle tracks not synchronous with the event trigger. The FTPC system is composed of three chambers with alternating drift field directions. The chambers were installed directly along the beamline region of the NA61/SHINE detector in a medium- to high-intensity (10-100 kHz) hadron or ion beam. The tandem TPC system has proved to be capable of rejecting out-of-time background tracks not associated with a primary interaction. In addition, the system performs tracking and inclusive dE/dx particle identification for particles at and near the beam momentum. This shows that a tandem-TPC-based chamber design may be used also in other experimental applications with a demand for low material budget, tracking capability, and the need for dE/dx particle identification, all while in the presence of a relatively high particle flux., Comment: 14 pages, 8 figures, published version

Published
2020
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44. Search of critical effects in NA61/SHINE

Author

Kuich, Magdalena

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

NA61/SHINE is a multi-purpose experiment to study hadron-proton, hadron-nucleus and nucleus-nucleus collisions at the CERN Super Proton Synchrotron (SPS). The experiment performs unique measurements for the physics of strong interactions as well as important reference measurements for neutrino and cosmic-ray physics. The primary goals of the experiment are the study of the onset of deconfinement and the search for the critical point of the strongly interacting matter, to uncover the mechanism of thermalisation and to test the validity of statistical models. For this purpose, a two-dimensional scan was performed by varying the beam momentum (13$A$--158$A$~GeV/$c$) and the size of colliding systems (p+p, p+Pb, Be+Be, Ar+Sc, Xe+La, Pb+Pb). In this contribution, we present recent NA61/SHINE results on the search for critical effects in spectra and fluctuations. We see no clear indication for the onset of deconfinement for intermediate colliding systems. Nevertheless, results from p+p interactions on spectra and onset of deconfinement reveal anomalous behaviour in proximity to transition energy. In fluctuation analysis of collisions of medium size nuclei at the top SPS energy, no prominent signal of critical point was observed., Comment: proceedings from ICNFP 2019, 12 pages

Published
2020

45. Report on the ECFA Early-Career Researchers Debate on the 2020 European Strategy Update for Particle Physics

Author

Andari, N., Apolinário, L., Augsten, K., Bakos, E., Bellafont, I., Beresford, L., Bethani, A., Beyer, J., Bianchini, L., Bierlich, C., Bilin, B., Bjørke, K. L., Bols, E., Brás, P. A., Brenner, L., Brondolin, E., Calvo, P., Capdevila, B., Cioara, I., Cojocariu, L. N., Collamati, F., de Wit, A., Dordei, F., Dordevic, M., Pree, T. A. du, Dufour, L., Dziurda, A., Einhaus, U., Elliot, A. A., Esen, S., Troitino, J. Ferradas, Franco, C., Pardiñas, J. García, Alonso, A. García, Ghosh, A., Gilles, G., Giribono, A., Gouskos, L., Gouveia, E., Graverini, E., Heikkilä, J. K., Heracleous, H. N., Herman, T., Hermansson-Truedsson, N., Hrtánková, J., Hussain, P. S., Irles, A., Jansen, H., Kalaczynski, P., Karancsi, J., Kontaxakis, P., Kostoglou, S., Koulouris, A., Koval, M., Gajdosova, K. Krizkova, Krzysiak, J. A., Kuich, M., Lantwin, O., Manghi, F. Lasagni, Lechner, L., Leontsinis, S., Lieret, K., Lobanov, A., Lorenz, J. M., Luparello, G., Lurkin, N., Mankinen, K. H., Manoni, E., Mantani, L., Marchevski, R., Benito, C. Marin, Mathad, A., McFayden, J., Milenovic, P., Milosevic, V., Mitzel, D. S., Moravcová, Z., Moureaux, L., Mullier, G. A., Nelson, M. E., Ngadiuba, J., Nikiforou, N., OKeefe, M. W., Pedro, R., Pekkanen, J., Queitsch-Maitland, M., Ramos, M. P. L. P., Rasmussen, C. Ø., Rembser, J., Reynolds, E. T. J., Sas, M., Schöfbeck, R., Schenk, M., Schwendimann, P., Shchelina, K., Shopova, M., Sekmen, S., Spannagel, S., Sputowska, I. A., Staszewski, R., Sznajder, P., Takacs, A., Tenorth, V. T., Thomas, L., Torre, R., Trovato, F., Valente, M., Van Haevermaet, H., Vanek, J., Verstraeten, M., Verwilligen, P., Verzetti, M., Vislavicius, V., Vormwald, B., Vourliotis, E., Walder, J., Wiglesworth, C., Williams, S. L., Zaborowska, A., Zanzi, D., and Zivkovic, L.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

A group of Early-Career Researchers (ECRs) has been given a mandate from the European Committee for Future Accelerators (ECFA) to debate the topics of the current European Strategy Update (ESU) for Particle Physics and to summarise the outcome in a brief document [1]. A full-day debate with 180 delegates was held at CERN, followed by a survey collecting quantitative input. During the debate, the ECRs discussed future colliders in terms of the physics prospects, their implications for accelerator and detector technology as well as computing and software. The discussion was organised into several topic areas. From these areas two common themes were particularly highlighted by the ECRs: sociological and human aspects; and issues of the environmental impact and sustainability of our research., Comment: Editors: A. Bethani, E. Brondolin, A. A. Elliot, J. Garc\'ia Pardi\~nas, G. Gilles, L. Gouskos, E. Gouveia, E. Graverini, N. Hermansson-Truedsson, A. Irles, H. Jansen, K. H. Mankinen, E. Manoni, A. Mathad, J. McFayden, M. Queitsch-Maitland, J. Rembser, E. T. J. Reynolds, R. Sch\"ofbeck, P. Schwendimann, S. Sekmen, P. Sznajder, S. L. Williams, D. Zanzi

Published
2020

46. $K^{*}(892)^0$ meson production in inelastic p+p interactions at 158 GeV/$c$ beam momentum measured by NA61/SHINE at the CERN SPS

Author

Collaboration, NA61/SHINE, Aduszkiewicz, A., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kaptur, E., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Łysakowski, B., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Manić, D., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Mrówczyński, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Richter-Wąs, E., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Włodarczyk, Z., Wyszyński, O., Zimmerman, E. D., and Zwaska, R.

Subjects
Nuclear Experiment
Abstract

The measurement of $K^{*}(892)^0$ resonance production via its $K^{+}\pi^{-}$ decay mode in inelastic p+p collisions at beam momentum 158 GeV/$c$ ($\sqrt{s_{NN}}=17.3$ GeV) is presented. The data were recorded by the NA61/SHINE hadron spectrometer at the CERN Super Proton Synchrotron. The \textit{template} method was used to extract the $K^{*}(892)^0$ signal and double differential transverse momentum and rapidity spectra were obtained. The full phase-space mean multiplicity of $K^{*}(892)^0$ mesons was found to be $(78.44 \pm 0.38 \mathrm{(stat)} \pm 6.0 \mathrm{(sys)) \cdot 10^{-3}}$. The NA61/SHINE results are compared with the EPOS1.99 and Hadron Resonance Gas models as well as with world data from p+p and nucleus-nucleus collisions., Comment: version published in Eur. Phys. J. C

Published
2020
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47. Two-pion femtoscopic correlations in Be+Be collisions at sNN=16.84 GeV measured by the NA61/SHINE at CERN

Author

Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I.-C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H.-J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Ortiz, V. Z. Reyna, Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Świderski, Ł., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Published
2023
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48. 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

Adhikary, H., Adrich, P., Allison, K. K., Amin, N., Andronov, E. V., Antićić, T., Arsene, I.-C., Bajda, M., Balkova, Y., Baszczyk, M., Battaglia, D., Bazgir, A., Bhosale, S., Bielewicz, M., Blondel, A., Bogomilov, M., Bondar, Y., Bostan, N., Brandin, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Camino, A. F., Christakoglou, P., Ćirković, M., Csanád, M., Cybowska, J., Czopowicz, T., Dalmazzone, C., Davis, N., Diakonos, F., Dmitriev, A., von Doetinchem, P., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Friend, M., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Igolkin, S. N., Ilieva, S., Ivashkin, A., Izvestnyy, A., Kadija, K., Kapoyannis, A., Kargin, N., Karpushkin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Kitagawa, H., Kolesnikov, R., Kolev, D., Koshio, Y., Kovalenko, V. N., Kowalski, S., Kozłowski, B., Krasnoperov, A., Kucewicz, W., Kuchowicz, M., Kuich, M., Kurepin, A., László, A., Lewicki, M., Lykasov, G., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Makhnev, A., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Mathes, H.-J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A., Mik, Ł., Morawiec, A., Morozov, S., Nagai, Y., Nakadaira, T., Naskręt, M., Nishimori, S., Ozvenchuk, V., Panagiotou, A. D., Panova, O., Paolone, V., Petukhov, O., Pidhurskyi, I., Płaneta, R., Podlaski, P., Popov, B. A., Pórfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Renfordt, R., Ren, L., Reyna Ortiz, V. Z., Röhrich, D., Rondio, E., Roth, M., Rozpłochowski, Ł., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sakashita, K., Schmidt, K., Seryakov, A. Yu., Seyboth, P., Shah, U. A., Shiraishi, Y., Shukla, A., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Swiderski, L., Szewiński, J., Szukiewicz, R., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Tveter, T. S., Unger, M., Urbaniak, M., Valiev, F. F., Vassiliou, M., Veberič, D., Vechernin, V. V., Volkov, V., Wickremasinghe, A., Wójcik, K., Wyszyński, O., Zaitsev, A., Zimmerman, E. D., Zviagina, A., and Zwaska, R.

Published
2023
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49. Search for an exotic S=-2, Q=-2 baryon resonance in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV

Author

Collaboration, NA61/SHINE, Aduszkiewicz, A., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Mrówczyński, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Włodarczyk, Z., Wyszyński, O., Zimmerman, E. D., and Zwaska, R.

Subjects
High Energy Physics - Experiment
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 \Xim\pim, \Xim\pip, \Xip\pim and \Xip\pip invariant mass spectra in proton-proton interactions at $\sqrt{s}$=17.3~\GeV are presented. Previous possible evidence from the NA49 collaboration of the existence of a narrow \Xim\pim baryon resonance in p+p interactions is not confirmed with almost 10 times greater event statistics. The search was performed using the \NASixtyOne detector which reuses the main components of the NA49 apparatus. No signal was observed with either the selection cuts of NA49 or newly optimised cuts., Comment: The papaer quote 33 M events while in reality after describted event cuts number reduced to 26M

Published
2019
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50. Proton-proton interactions and onset of deconfinement

Author

Collaboration, NA61/SHINE, Aduszkiewicz, A., Andronov, E. V., Antićić, T., Babkin, V., Baszczyk, M., Bhosale, S., Blondel, A., Bogomilov, M., Brandin, A., Bravar, A., Bryliński, W., Brzychczyk, J., Buryakov, M., Busygina, O., Bzdak, A., Cherif, H., Ćirković, M., Csanad, M., Cybowska, J., Czopowicz, T., Damyanova, A., Davis, N., Deliyergiyev, M., Deveaux, M., Dmitriev, A., Dominik, W., Dorosz, P., Dumarchez, J., Engel, R., Feofilov, G. A., Fields, L., Fodor, Z., Garibov, A., Gaździcki, M., Golosov, O., Golovatyuk, V., Golubeva, M., Grebieszkow, K., Guber, F., Haesler, A., Igolkin, S. N., Ilieva, S., Ivashkin, A., Johnson, S. R., Kadija, K., Kargin, N., Kashirin, E., Kiełbowicz, M., Kireyeu, V. A., Klochkov, V., Kolesnikov, V. I., Kolev, D., Korzenev, A., Kovalenko, V. N., Kowalski, S., Koziel, M., Krasnoperov, A., Kucewicz, W., Kuich, M., Kurepin, A., Larsen, D., László, A., Lazareva, T. V., Lewicki, M., Łojek, K., Lyubushkin, V. V., Maćkowiak-Pawłowska, M., Majka, Z., Maksiak, B., Malakhov, A. I., Marcinek, A., Marino, A. D., Marton, K., Mathes, H. -J., Matulewicz, T., Matveev, V., Melkumov, G. L., Merzlaya, A. O., Messerly, B., Mik, Ł., Morozov, S., Mrówczyński, S., Nagai, Y., Naskręt, M., Ozvenchuk, V., Paolone, V., Petukhov, O., Płaneta, R., Podlaski, P., Popov, B. A., Porfy, B., Posiadała-Zezula, M., Prokhorova, D. S., Pszczel, D., Puławski, S., Puzović, J., Ravonel, M., Renfordt, R., Röhrich, D., Rondio, E., Roth, M., Rumberger, B. T., Rumyantsev, M., Rustamov, A., Rybczynski, M., Rybicki, A., Sadovsky, A., Schmidt, K., Selyuzhenkov, I., Seryakov, A. Yu., Seyboth, P., Słodkowski, M., Staszel, P., Stefanek, G., Stepaniak, J., Strikhanov, M., Ströbele, H., Šuša, T., Taranenko, A., Tefelska, A., Tefelski, D., Tereshchenko, V., Toia, A., Tsenov, R., Turko, L., Ulrich, R., Unger, M., Valiev, F. F., Veberič, D., Vechernin, V. V., Wickremasinghe, A., Włodarczyk, Z., Wyszyński, O., Zimmerman, E. D., and Zwaska, R.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

The NA61/SHINE experiment at the CERN SPS is performing a uniqe study of the phase diagram of strongly interacting matter by varying collision energy and nuclear mass number of colliding nuclei. In central Pb+Pb collisions the NA49 experiment found structures in the energy dependence of several observables in the CERN SPS energy range that had been predicted for the transition to a deconfined phase. New measurements of NA61/SHINE find intriguing similarities in p+p interactions for which no deconfinement transition is expected at SPS energies. Possible implications will be discussed.

Published
2019
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