https://doi.org/10.1140/epjc/s10052-020-8381-0
Regular Article - Experimental Physics
Measurements of 
and 
production in proton–proton interactions at 
= 17.3 
in the NA61/SHINE experiment
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
University of Frankfurt, Frankfurt, Germany
7
Wigner Research Centre for Physics of the Hungarian Academy of Sciences, Budapest, Hungary
8
University of Bergen, Bergen, Norway
9
Jan Kochanowski University in Kielce, Kielce, Poland
10
Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
11
National Centre for Nuclear Research, Warsaw, Poland
12
Jagiellonian University, Kraków, Poland
13
AGH - University of Science and Technology, Kraków, Poland
14
University of Silesia, Katowice, Poland
15
University of Warsaw, Warsaw, Poland
16
University of Wrocław, Wrocław, Poland
17
Warsaw University of Technology, Warsaw, Poland
18
Institute for Nuclear Research, Moscow, Russia
19
Joint Institute for Nuclear Research, Dubna, Russia
20
National Research Nuclear University (Moscow Engineering Physics Institute), Moscow, Russia
21
St. Petersburg State University, St. Petersburg, Russia
22
University of Belgrade, Belgrade, Serbia
23
University of Geneva, Geneva, Switzerland
24
Fermilab, Batavia, USA
25
University of Colorado, Boulder, USA
26
University of Pittsburgh, Pittsburgh, USA
Received:
4
June
2020
Accepted:
20
August
2020
Published online:
8
September
2020
The production of 
and 
hyperons in inelastic p+p interactions is studied in a fixed target experiment at a beam momentum of 158 
. Double differential distributions in rapidity 
and transverse momentum 
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 and . The rapidity and transverse momentum spectra are compared to transport model predictions. The mean multiplicity in inelastic p+p interactions at 158 is used to quantify the strangeness enhancement in A+A collisions at the same centre-of-mass energy per nucleon pair.
© The Author(s) 2020
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Funded by SCOAP3
