Inclusive Λ production in proton-proton collisions at 3.5 GeV

HADES Collaboration

doi:10.1103/PhysRevC.95.015207

Inclusive Λ production in proton-proton collisions at 3.5 GeV

HADES Collaboration

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

GSI Helmholtz Center
Joint Inst. for Nuclear Research
Cluster of Excellence E-conversion
Technical University of Munich
University Paris-Sud
Johann Wolfgang Goethe University
Jagiellonian University
LIP-Laboratorio de Instrumentacao e Fisica Experimental de Particulas
Justus-Liebig-Universität Gießen
HelmholtzZentrum Dresden-Rossendorf
Coimbra Polytechnic - ISEC
Technische Universität Darmstadt
Universidad de Santiago de Compostela
Institute for Nuclear Research of the Russian Academy of Sciences
Institute of Physics SAS
Technische Universität Dresden
Nuclear Physics Institute of the Cas
ITEP
University of Cyprus
Frederick University
University of Torino

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The inclusive production of Λ hyperons in proton-proton collisions at s=3.18GeV was measured with HADES at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt. The experimental data are compared to a data-based model for individual exclusive Λ production channels in the same reaction. The contributions of intermediate resonances such as Σ(1385), Δ++, or N∗ are considered in detail. In particular, the result of a partial-wave analysis accounts for the abundant pK+Λ final state. Model and data show a reasonable agreement at midrapidities, while a difference is found for larger rapidities. A total Λ production cross section in p+p collisions at s=3.18GeV of σ(p+p→Λ+X)=207.3±1.3-7.3+6.0(stat.)±8.4(syst.)-0.5+0.4(model.)μb is found.

Original language	English
Article number	015207
Journal	Physical Review C
Volume	95
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.95.015207
State	Published - 27 Jan 2017

Access to Document

10.1103/PhysRevC.95.015207

Cite this

@article{d8029267c30d4ab18a61e5eb95c9f366,

title = "Inclusive Λ production in proton-proton collisions at 3.5 GeV",

abstract = "The inclusive production of Λ hyperons in proton-proton collisions at s=3.18GeV was measured with HADES at the GSI Helmholtzzentrum f{\"u}r Schwerionenforschung in Darmstadt. The experimental data are compared to a data-based model for individual exclusive Λ production channels in the same reaction. The contributions of intermediate resonances such as Σ(1385), Δ++, or N∗ are considered in detail. In particular, the result of a partial-wave analysis accounts for the abundant pK+Λ final state. Model and data show a reasonable agreement at midrapidities, while a difference is found for larger rapidities. A total Λ production cross section in p+p collisions at s=3.18GeV of σ(p+p→Λ+X)=207.3±1.3-7.3+6.0(stat.)±8.4(syst.)-0.5+0.4(model.)μb is found.",

author = "\{HADES Collaboration\} and J. Adamczewski-Musch and G. Agakishiev and O. Arnold and Atomssa, \{E. T.\} and C. Behnke and Berger-Chen, \{J. C.\} and J. Biernat and A. Blanco and C. Blume and M. B{\"o}hmer and P. Bordalo and S. Chernenko and C. Deveaux and J. Dreyer and A. Dybczak and E. Epple and L. Fabbietti and O. Fateev and P. Fonte and C. Franco and J. Friese and I. Fr{\"o}hlich and T. Galatyuk and Garz{\'o}n, \{J. A.\} and K. Gill and M. Golubeva and F. Guber and M. Gumberidze and S. Harabasz and T. Hennino and S. Hlavac and C. H{\"o}hne and R. Holzmann and A. Ierusalimov and A. Ivashkin and M. Jurkovic and B. K{\"a}mpfer and T. Karavicheva and B. Kardan and I. Koenig and W. Koenig and Kolb, \{B. W.\} and G. Korcyl and G. Kornakov and R. Kotte and A. Kr{\'a}sa and E. Krebs and H. Kuc and A. Kugler and T. Kunz",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = jan,

day = "27",

doi = "10.1103/PhysRevC.95.015207",

language = "English",

volume = "95",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Inclusive Λ production in proton-proton collisions at 3.5 GeV

AU - HADES Collaboration

AU - Adamczewski-Musch, J.

AU - Agakishiev, G.

AU - Arnold, O.

AU - Atomssa, E. T.

AU - Behnke, C.

AU - Berger-Chen, J. C.

AU - Biernat, J.

AU - Blanco, A.

AU - Blume, C.

AU - Böhmer, M.

AU - Bordalo, P.

AU - Chernenko, S.

AU - Deveaux, C.

AU - Dreyer, J.

AU - Dybczak, A.

AU - Epple, E.

AU - Fabbietti, L.

AU - Fateev, O.

AU - Fonte, P.

AU - Franco, C.

AU - Friese, J.

AU - Fröhlich, I.

AU - Galatyuk, T.

AU - Garzón, J. A.

AU - Gill, K.

AU - Golubeva, M.

AU - Guber, F.

AU - Gumberidze, M.

AU - Harabasz, S.

AU - Hennino, T.

AU - Hlavac, S.

AU - Höhne, C.

AU - Holzmann, R.

AU - Ierusalimov, A.

AU - Ivashkin, A.

AU - Jurkovic, M.

AU - Kämpfer, B.

AU - Karavicheva, T.

AU - Kardan, B.

AU - Koenig, I.

AU - Koenig, W.

AU - Kolb, B. W.

AU - Korcyl, G.

AU - Kornakov, G.

AU - Kotte, R.

AU - Krása, A.

AU - Krebs, E.

AU - Kuc, H.

AU - Kugler, A.

AU - Kunz, T.

PY - 2017/1/27

Y1 - 2017/1/27

N2 - The inclusive production of Λ hyperons in proton-proton collisions at s=3.18GeV was measured with HADES at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt. The experimental data are compared to a data-based model for individual exclusive Λ production channels in the same reaction. The contributions of intermediate resonances such as Σ(1385), Δ++, or N∗ are considered in detail. In particular, the result of a partial-wave analysis accounts for the abundant pK+Λ final state. Model and data show a reasonable agreement at midrapidities, while a difference is found for larger rapidities. A total Λ production cross section in p+p collisions at s=3.18GeV of σ(p+p→Λ+X)=207.3±1.3-7.3+6.0(stat.)±8.4(syst.)-0.5+0.4(model.)μb is found.

AB - The inclusive production of Λ hyperons in proton-proton collisions at s=3.18GeV was measured with HADES at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt. The experimental data are compared to a data-based model for individual exclusive Λ production channels in the same reaction. The contributions of intermediate resonances such as Σ(1385), Δ++, or N∗ are considered in detail. In particular, the result of a partial-wave analysis accounts for the abundant pK+Λ final state. Model and data show a reasonable agreement at midrapidities, while a difference is found for larger rapidities. A total Λ production cross section in p+p collisions at s=3.18GeV of σ(p+p→Λ+X)=207.3±1.3-7.3+6.0(stat.)±8.4(syst.)-0.5+0.4(model.)μb is found.

UR - https://www.scopus.com/pages/publications/85015148693

U2 - 10.1103/PhysRevC.95.015207

DO - 10.1103/PhysRevC.95.015207

M3 - Article

AN - SCOPUS:85015148693

SN - 2469-9985

VL - 95

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 015207

ER -

Inclusive Λ production in proton-proton collisions at 3.5 GeV

Abstract

Access to Document

Other files and links

Fingerprint

Cite this