Eur. Phys. J. C (2016) 76: 198
https://doi.org/10.1140/epjc/s10052-016-4003-2

Regular Article - Experimental Physics

Production of -hyperons in inelastic p+p interactions at 158

NA61/SHINE Collaboration

¹ National Nuclear Research Center, Baku, Azerbaijan
² Faculty of Physics, University of Sofia, Sofia, Bulgaria
³ Ruđer Bošković Institute, Zagreb, Croatia
⁴ LPNHE, University of Paris VI and VII, Paris, France
⁵ Karlsruhe Institute of Technology, Karlsruhe, Germany
⁶ Fachhochschule Frankfurt, Frankfurt, Germany
⁷ University of Frankfurt, Frankfurt, Germany
⁸ University of Athens, Athens, Greece
⁹ Wigner Research Centre for Physics of the Hungarian Academy of Sciences, Budapest, Hungary
¹⁰ Institute for Particle and Nuclear Studies, Tsukuba, Japan
¹¹ University of Bergen, Bergen, Norway
¹² Jan Kochanowski University in Kielce, Kielce, Poland
¹³ National Centre for Nuclear Research, Warsaw, Poland
¹⁴ Jagiellonian University, Cracow, Poland
¹⁵ University of Silesia, Katowice, Poland
¹⁶ University of Warsaw, Warsaw, Poland
¹⁷ University of Wrocław, Wrocław, Poland
¹⁸ Warsaw University of Technology, Warsaw, Poland
¹⁹ Institute for Nuclear Research, Moscow, Russia
²⁰ Joint Institute for Nuclear Research, Dubna, Russia
²¹ National Research Nuclear University “MEPhI” (Moscow Engineering Physics Institute), Moscow, Russia
²² St. Petersburg State University, St. Petersburg, Russia
²³ University of Belgrade, Belgrade, Serbia
²⁴ ETH Zürich, Zürich, Switzerland
²⁵ University of Bern, Bern, Switzerland
²⁶ University of Geneva, Geneva, Switzerland
²⁷ Los Alamos National Laboratory, Los Alamos, USA
²⁸ University of Colorado, Boulder, USA
²⁹ University of Pittsburgh, Pittsburgh, USA
³⁰ Department of Physics, COMSATS Institute of Information Technology, Islamabad, 44000, Pakistan

^* e-mail: Tatjana.Susa@irb.hr

Received: 5 November 2015
Accepted: 7 March 2016
Published online: 12 April 2016

Abstract

Inclusive production of -hyperons was measured with the large acceptance NA61/SHINE spectrometer at the CERN SPS in inelastic p+p interactions at beam momentum of 158 . Spectra of transverse momentum and transverse mass as well as distributions of rapidity and x are presented. The mean multiplicity was estimated to be . The results are compared with previous measurements and predictions of the Epos, Urqmd and Fritiof models.