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Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV

Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV
Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV
Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25GeV is investigated. The multi-differential data were measured by the HADES Collaboration. Exclusive channels with one pion in the final state (npπ+ and ppπ0 were put to extended studies based on various observables in the framework of a one-pion exchange model and with solutions obtained within the framework of a partial wave analysis (PWA) of the Bonn-Gatchina group. The results of the PWA confirm the dominant contribution of the Δ(1232), yet with a sizable impact of the N (1440) and non-resonant partial waves.
1434-6001
137
Agakishiev, G.
00941cb1-3203-420e-9cec-d428c3e9873c
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
HADES Collaboration
Agakishiev, G.
00941cb1-3203-420e-9cec-d428c3e9873c
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Agakishiev, G. and Belyaev, Alexander , HADES Collaboration (2015) Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV. The European Physical Journal A, A51 (10), 137. (doi:10.1140/epja/i2015-15137-5).

Record type: Article

Abstract

Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25GeV is investigated. The multi-differential data were measured by the HADES Collaboration. Exclusive channels with one pion in the final state (npπ+ and ppπ0 were put to extended studies based on various observables in the framework of a one-pion exchange model and with solutions obtained within the framework of a partial wave analysis (PWA) of the Bonn-Gatchina group. The results of the PWA confirm the dominant contribution of the Δ(1232), yet with a sizable impact of the N (1440) and non-resonant partial waves.

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Published date: 30 October 2015
Organisations: Physics & Astronomy

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Local EPrints ID: 410525
URI: https://eprints.soton.ac.uk/id/eprint/410525
ISSN: 1434-6001
PURE UUID: ce36f47c-fa4f-433b-bf12-8e13d6bea7e6
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 09 Jun 2017 09:02
Last modified: 20 Jul 2019 00:52

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