Inclusive {\Lambda} production in proton-proton collisions at 3.5 GeV
Abstract
The inclusive production of {\Lambda} hyperons in proton-proton collisions at = 3.18 GeV was measured with HADES at the GSI Helmholtzzentrum f\"ur Schwerionenforschung in Darmstadt. The experimental data are compared to a data-based model for individual exclusive {\Lambda} production channels in the same reaction. The contributions of intermediate resonances such as {\Sigma}(1385), {\Delta}++ or N* are considered in detail. In particular, the result of a partial wave analysis is accounted for the abundant pK{\Lambda} final state. Model and data show a reasonable agreement at mid rapidities, while a difference is found for larger rapidities. A total {\Lambda} production cross section in p+p collisions at = 3.18 GeV of {\sigma}(pp {\Lambda} + X) = 207.3 1.3 +6.0 -7.3 (stat.) 8.4 (syst.) +0.4 -0.5 (model) {\mu}b is found.
Keywords
Cite
@article{arxiv.1611.01040,
title = {Inclusive {\Lambda} production in proton-proton collisions at 3.5 GeV},
author = {J. Adamczewski-Musch and G. Agakishiev and O. Arnold and E. T. Atomssa and C. Behnke and J. C. Berger-Chen and J. Biernat and A. Blanco and C. Blume and M. Böhmer 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. Fröhlich and T. Galatyuk and J. A. Garzón and K. Gill and M. Golubeva and F. Guber and M. Gumberidze and S. Harabasz and T. Hennino and S. Hlavac and C. Höhne and R. Holzmann and A. Ierusalimov and A. Ivashkin and M. Jurkovic and B. Kämpfer and T. Karavicheva and B. Kardan and I. Koenig and W. Koenig and B. W. Kolb and G. Korcyl and G. Kornakov and R. Kotte and A. Krása and E. Krebs and H. Kuc and A. Kugler and T. Kunz and A. Kurepin and A. Kurilkin and P. Kurilkin and V. Ladygin and R. Lalik and K. Lapidus and A. Lebedev and L. Lopes and M. Lorenz and T. Mahmoud and L. Maier and S. Maurus and A. Mangiarotti and J. Markert and V. Metag and J. Michel and S. Morozov and C. Müntz and R. Münzer and L. Naumann and M. Palka and Y. Parpottas and V. Pechenov and O. Pechenova and V. Petousis and J. Pietraszko and W. Przygoda and S. Ramos and B. Ramstein and L. Rehnisch and A. Reshetin and A. Rost and A. Rustamov and A. Sadovsky and P. Salabura and T. Scheib and K. Schmidt-Sommerfeld and H. Schuldes and P. Sellheim and J. Siebenson and L. Silva and Yu. G. Sobolev and S. Spataroe and H. Ströbele and J. Stroth and P. Strzempek and C. Sturm and O. Svoboda and A. Tarantola and K. Teilab and P. Tlusty and M. Traxler and H. Tsertos and T. Vasiliev and V. Wagner and C. Wendisch and J. Wirth and Y. Zanevsky and P. Zumbruch},
journal= {arXiv preprint arXiv:1611.01040},
year = {2017}
}
Comments
12 pages, 6 figures