Measurement of the pn -> pp pi(0)pi(-) reaction in search for the recently observed resonance structure in d pi(0)pi(0) and d pi(+)pi(-) systems

doi:10.1103/PhysRevC.88.055208

	Measurement of the pn -> pp pi(0)pi(-) reaction in search for the recently observed resonance structure in d pi(0)pi(0) and d pi(+)pi(-) systems
	Adlarson, P.1; Augustyniak, W.2; Bardan, W.3; Bashkanov, M.4,5; Bergmann, F. S.6; Berlowski, M.7; Bhatt, H.8; Buescher, M.9,10; Calen, H.1; Ciepal, I.3
刊名	PHYSICAL REVIEW C
	2013-11-26
卷号	88
ISSN号	0556-2813
DOI	10.1103/PhysRevC.88.055208
文献子类	Article
英文摘要	Exclusive measurements of the quasifree pn -> pp pi(0)pi(-) reaction have been performed by means of pd collisions at T-p = 1.2 GeV using the wide angle shower apparatus (WASA) detector setup at the cooler synchrotron COSY (Institut fur Kernphysik, Julich). Total and differential cross sections have been obtained covering the energy region root s = (2.35-2.46) GeV, which includes the region of the ABC effect and its associated resonance structure. NoABCeffect, i.e., low-mass enhancement is found in the pi(0)pi(-) -invariant mass spectrum, in agreement with the constraint from Bose statistics that the isovector pion pair can not be in relative s wave. At the upper end of the covered energy region t-channel processes for Roper, Delta(1600) and Delta Delta excitations provide a reasonable description of the data, but at low energies the measured cross sections are much larger than predicted by such processes. Adding a resonance amplitude for the resonance at m = 2.37 GeV with Gamma = 70 MeV and I (J(P)) = 0(3(+)) observed recently in pn -> d pi(0)pi(0) and pn -> d pi(+)pi(-) reactions leads to an agreement with the data also at low energies.
资助项目	BMBF[06TU9193]
WOS关键词	NUCLEON-NUCLEON COLLISIONS ; PROTON-PROTON COLLISIONS ; DOUBLE-PION PRODUCTION ; CROSS-SECTIONS ; ISOSPIN DECOMPOSITION ; PI(0)PI(0) PRODUCTION ; MESON PRODUCTION ; ROPER RESONANCE ; GEV/C ; EXCITATION
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000327385500002
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48243]
专题	中国科学院近代物理研究所
通讯作者	Adlarson, P.
作者单位	1.Uppsala Univ, Div Nucl Phys, Dept Phys & Astron, S-75120 Uppsala, Sweden 2.Natl Ctr Nucl Res, Dept Nucl Phys, PL-00681 Warsaw, Poland 3.Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland 4.Univ Tubingen, Inst Phys, D-72076 Tubingen, Germany 5.Univ Tubingen, Kepler Ctr Astro & Particle Phys, D-72076 Tubingen, Germany 6.Univ Munster, Inst Kernphys, D-48149 Munster, Germany 7.Natl Ctr Nucl Res, Dept High Energy Phys, PL-00681 Warsaw, Poland 8.Indian Inst Technol, Dept Phys, Bombay 400076, Maharashtra, India 9.Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany 10.Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany
推荐引用方式 GB/T 7714	Adlarson, P.,Augustyniak, W.,Bardan, W.,et al. Measurement of the pn -> pp pi(0)pi(-) reaction in search for the recently observed resonance structure in d pi(0)pi(0) and d pi(+)pi(-) systems[J]. PHYSICAL REVIEW C,2013,88.
APA	Adlarson, P..,Augustyniak, W..,Bardan, W..,Bashkanov, M..,Bergmann, F. S..,...&WASA-at-COSY Collaboration.(2013).Measurement of the pn -> pp pi(0)pi(-) reaction in search for the recently observed resonance structure in d pi(0)pi(0) and d pi(+)pi(-) systems.PHYSICAL REVIEW C,88.
MLA	Adlarson, P.,et al."Measurement of the pn -> pp pi(0)pi(-) reaction in search for the recently observed resonance structure in d pi(0)pi(0) and d pi(+)pi(-) systems".PHYSICAL REVIEW C 88(2013).