https://doi.org/10.1140/epjc/s10052-013-2581-9
Regular Article - Experimental Physics
Study of Σ(1385) and Ξ(1321) hyperon and antihyperon production in deep inelastic muon scattering
1
Fakultät für Physik, Universität Bielefeld, 33501, Bielefeld, Germany
2
Institut für Experimentalphysik, Universität Bochum, 44780, Bochum, Germany
3
Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115, Bonn, Germany
4
Physikalisches Institut, Universität Bonn, 53115, Bonn, Germany
5
Institute of Scientific Instruments, AS CR, 61264, Brno, Czech Republic
6
Matrivani Institute of Experimental Research & Education, Calcutta, 700 030, India
7
Joint Institute for Nuclear Research, 141980, Dubna, Moscow region, Russia
8
Physikalisches Institut, Universität Erlangen–Nürnberg, 91054, Erlangen, Germany
9
Physikalisches Institut, Universität Freiburg, 79104, Freiburg, Germany
10
CERN, 1211, Geneva 23, Switzerland
11
Technical University in Liberec, 46117, Liberec, Czech Republic
12
LIP, 1000-149, Lisbon, Portugal
13
Institut für Kernphysik, Universität Mainz, 55099, Mainz, Germany
14
University of Miyazaki, Miyazaki, 889-2192, Japan
15
Lebedev Physical Institute, 119991, Moscow, Russia
16
Department für Physik, Ludwig-Maximilians-Universität München, 80799, Munich, Germany
17
Physik Department, Technische Universität München, 85748, Garching, Germany
18
Nagoya University, 464, Nagoya, Japan
19
Faculty of Mathematics and Physics, Charles University in Prague, 18000, Prague, Czech Republic
20
Czech Technical University in Prague, 16636, Prague, Czech Republic
21
Institute for High Energy Physics, State Research Center of the Russian Federation, 142281, Protvino, Russia
22
CEA IRFU/SPhN Saclay, 91191, Gif-sur-Yvette, France
23
School of Physics and Astronomy, Tel Aviv University, 69978, Tel Aviv, Israel
24
Trieste Section of INFN, 34127, Trieste, Italy
25
Department of Physics and Trieste Section of INFN, University of Trieste, 34127, Trieste, Italy
26
Abdus Salam ICTP and Trieste Section of INFN, 34127, Trieste, Italy
27
Department of Physics and Torino Section of INFN, University of Turin, 10125, Turin, Italy
28
Torino Section of INFN, 10125, Turin, Italy
29
University of Eastern Piedmont, 15100, Alessandria, Italy
30
National Centre for Nuclear Research, 00-681, Warsaw, Poland
31
Faculty of Physics, University of Warsaw, 00-681, Warsaw, Poland
32
Institute of Radioelectronics, Warsaw University of Technology, 00-665, Warsaw, Poland
33
Yamagata University, Yamagata, 992-8510, Japan
* e-mail: Andrea.Bressan@cern.ch
Received:
3
April
2013
Revised:
21
August
2013
Published online:
9
October
2013
Large samples of Λ, Σ(1385) and Ξ(1321) hyperons produced in the deep-inelastic muon scattering off a 6LiD target were collected with the COMPASS experimental setup at CERN. The relative yields of Σ(1385)+, Σ(1385)−, ,
, Ξ(1321)−, and
hyperons decaying into
were measured. The ratios of heavy-hyperon to Λ and heavy-antihyperon to
were found to be in the range 3.8 % to 5.6 % with a relative uncertainty of about 10 %. They were used to tune the parameters relevant for strange particle production of the LEPTO Monte Carlo generator.
© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica, 2013