Determination of N* amplitudes from associated strangeness production in p plus p collisions
文献类型：期刊论文
| 作者 | Muenzer, R.1,2; Fabbietti, L.1,2; Epple, E.3; Lu, S.2; Klose, P.2; Hauenstein, F.4; Herrmann, N.5; Grzonka, D.4,6,7; Leifels, Y.8; Maggiora, M.9 |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2018-10-10 |
| 卷号 | 785页码:574-580 |
| ISSN号 | 0370-2693 |
| 关键词 | Partial wave analysis Resonance Hadrons Strangeness Scattering length Hyperon-nucleon interaction |
| DOI | 10.1016/j.physletb.2018.08.068 |
| 通讯作者 | Muenzer, R.(robert.muenzer@cern.ch) ; Fabbietti, L.(laura.fabbietti@ph.tum.de) |
| 英文摘要 | We present the first determination of the energy-dependent amplitudes of N* resonances extracted from their decay in K Lambda pairs in p+p -> pK(+)Lambda reactions. A combined Partial Wave Analysis of seven data samples with exclusively reconstructed p+p -> pK(+)Lambda events measured by the COSY-TOF, DISTO, FOPI and HADES Collaborations in fixed target experiments at kinetic energies between 2.14 to 3.5 GeV is used to determine the amplitude of the resonant and non-resonant contributions into the associated strangeness final state. The contribution of seven N* resonances with masses between 1650 MeV/c(2) and 1900 MeV/c(2)for an excess energy between 0 and 600 MeV has been considered. The Sigma-p cusp and final state interactions for the p-Lambda channel are also included as coherent contributions in the PWA. The N* contribution is found to be dominant with respect to the phase space emission of the pK(+)Lambda final state at all energies demonstrating the important role played by both N* and interference effects in hadronhadron collisions. (C) 2018 The Author(s). Published by Elsevier B.V. |
| 收录类别 | SCI |
| WOS关键词 | OPERATOR EXPANSION METHOD ; K+ LAMBDA-P ; HYPERON PRODUCTION ; BARYON-BARYON ; NEUTRON-STARS ; MOMENTUM ; BEAM ; RESONANCES ; SCATTERING ; CHANNEL |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000447424000081 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558260 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Muenzer, R.; Fabbietti, L. |
| 作者单位 | 1.Tech Univ, Excellence Cluster Universe, Boltzmannstr 2, D-85748 Munich, Germany 2.Tech Univ Munich, Phys Dept E62, D-85748 Garching, Germany 3.Yale Univ, New Haven, CT USA 4.Forschungszentrum Julich, Inst Kernphys, D-52428 Julich, Germany 5.Heidelberg Univ, Phys Inst, Heidelberg, Germany 6.Julich Aachen Res Alliance Forces & Matter Expt, Julich, Germany 7.Ruhr Univ Bochum, Expt Phys 1, D-44780 Bochum, Germany 8.GSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, Germany 9.INFN, Sez Torino, I-10125 Turin, Italy 10.Univ Paris Sud, CNRS, Inst Phys Nucl, IN2P3, F-91406 Orsay, France |
| 推荐引用方式 GB/T 7714 | Muenzer, R.,Fabbietti, L.,Epple, E.,et al. Determination of N* amplitudes from associated strangeness production in p plus p collisions[J]. PHYSICS LETTERS B,2018,785:574-580. |
| APA | Muenzer, R..,Fabbietti, L..,Epple, E..,Lu, S..,Klose, P..,...&Zmeskal, J..(2018).Determination of N* amplitudes from associated strangeness production in p plus p collisions.PHYSICS LETTERS B,785,574-580. |
| MLA | Muenzer, R.,et al."Determination of N* amplitudes from associated strangeness production in p plus p collisions".PHYSICS LETTERS B 785(2018):574-580. |
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来源：寒区旱区环境与工程研究所
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