Measurement of the quasi free np -> np pi(+)pi(-) and np -> pp pi(-)pi(0) reactions at 1.25 GeV with HADES

Kurilkin, A.; Arnold, O.; Atomssa, E. T.; Krása, Antonín; Křížek, Filip; Kugler, Andrej; Sobolev, Yuri, G.; Svoboda, Ondřej; Tlustý, Pavel; Wagner, Vladimír

doi:https://dx.doi.org/10.1051/epjconf/20148102009

Number of the records: 1

Measurement of the quasi free np -> np pi(+)pi(-) and np -> pp pi(-)pi(0) reactions at 1.25 GeV with HADES

1.

SYSNO ASEP	0486398
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Measurement of the quasi free np -> np pi(+)pi(-) and np -> pp pi(-)pi(0) reactions at 1.25 GeV with HADES
Author(s)	Kurilkin, A. (RU) Arnold, O. (DE) Atomssa, E. T. (FR) Krása, Antonín (UJF-V) Křížek, Filip (UJF-V)_{RID, ORCID, SAI} Kugler, Andrej (UJF-V)_{RID, ORCID, SAI} Sobolev, Yuri, G. (UJF-V)_ORCID Svoboda, Ondřej (UJF-V)_{RID, ORCID, SAI} Tlustý, Pavel (UJF-V)_{ORCID, SAI} Wagner, Vladimír (UJF-V)_{RID, ORCID, SAI}
Number of authors	105
Article number	02009
Source Title	EPJ Web of Conferences, 81 - MESON 2014. - Les Ulis : EDP Sciences, 2014 - ISSN 2100-014X
Number of pages	4 s.
Publication form	Print - P
Action	13th International Workshop on Production, Properties and Interaction of Mesons
Event date	29.05.2014 - 03.06.2014
VEvent location	Cracow
Country	PL - Poland
Event type	WRD
Language	eng - English
Country	FR - France
Keywords	spectrometers ; pp ; HADES
Subject RIV	BG - Nuclear, Atomic and Molecular Physics, Colliders
OECD category	Nuclear physics
Institutional support	UJF-V - RVO:61389005
UT WOS	000351440900035
EID SCOPUS	84915750934
DOI	10.1051/epjconf/20148102009
Annotation	We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The specific acceptance of HADES allowed for the first time to obtain high-precision data on pi(+)pi(-) and pi(-)pi(0) production in np collisions in a region corresponding to large transverse momenta of the secondary particles. The obtained differential cross section data provide strong constraints on the production mechanisms and on the various baryon resonance contributions (Delta Delta, N(1440), N(1520), Delta(1600)). The invariant mass and angular distributions from the np -> np pi(+)pi(-) and np -> pp pi(-)pi(0) reactions are compared with different theoretical model predictions.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2018

Number of the records: 1