Measurements of multiplicity fluctuations of identified hadrons in inelastic proton–proton interactions at the CERN Super Proton Synchrotron

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

The European Physical Journal C（2021）

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摘要

Measurements of multiplicity fluctuations of identified hadrons produced in inelastic p+p interactions at 31, 40, 80, and 158 GeV/c beam momentum are presented. Three different measures of multiplicity fluctuations are used: the scaled variance ω and strongly intensive measures Σ and Δ . These fluctuation measures involve second and first moments of joint multiplicity distributions. Data analysis is preformed using the Identity method which corrects for incomplete particle identification. Strongly intensive quantities are calculated in order to allow for a direct comparison to corresponding results on nucleus–nucleus collisions. The results for different hadron types are shown as a function of collision energy. A comparison with predictions of string-resonance Monte-Carlo models: Epos , Smash and Venus , is also presented.

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