The gamma p -> na(2)(+) (1320) -> n rho(0)pi(+) reactions within an effective Lagrangian approach

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	The gamma p -> na(2)(+) (1320) -> n rho(0)pi(+) reactions within an effective Lagrangian approach
	Huang, Y ; Xie, JJ ; Chen, XR ; He, J ; Zhang, HF
刊名	INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS
	2014
卷号	23 期号:6
关键词	Photon-production tensor meson a(2)(1320) effective Lagrangian approach
ISSN号	0218-3013
通讯作者	Xie, JJ (reprint author), Chinese Acad Sci, Inst Modern Phys, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China.
中文摘要	We investigate the tensor meson a(2)(1320) photon-production off proton in the gamma p -> na(2)(+) (1320) and gamma p -> n rho(0)pi(+) reactions within the effective Lagrangian approach and isobar model. For gamma p -> na(2)(+) (1320) reaction, by considering the contributions from only the t-channel pi(+) exchange, we get a fairly good description of the current experimental data for the total cross-section. Based on the theoretical results of the gamma p -> na(2)(+) (1320) reaction, we studied the role of a(2)(1320) meson in the gamma p -> n rho(0)pi(+) reaction, which mainly contributes to the gamma p -> n pi(+)pi(+)pi(-) reaction. The latter reaction has been measured by the CLAS Collaboration at the photon energy E-gamma around 5.1 GeV. For the gamma p -> n rho(0)pi(+) reaction, we pay attention to the low photon energy region where the contribution from a(2)(1320) meson is dominant, while the contribution from the pi(2)(1670) meson could be very small and hence can be neglected. The total cross-sections, invariant mass distribution and the Dalitz plot of gamma p -> n rho(0)pi(+) reaction are shown, which can be tested by future experiments.
资助信息	National Natural Science Foundation of China [11105126, 11175220, 11275235, 11035006, 10905077]; Century Program of Chinese Academy of Sciences [Y101020BR0]; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59113]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Huang, Y,Xie, JJ,Chen, XR,et al. The gamma p -> na(2)(+) (1320) -> n rho(0)pi(+) reactions within an effective Lagrangian approach[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS,2014,23(6).
APA	Huang, Y,Xie, JJ,Chen, XR,He, J,&Zhang, HF.(2014).The gamma p -> na(2)(+) (1320) -> n rho(0)pi(+) reactions within an effective Lagrangian approach.INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS,23(6).
MLA	Huang, Y,et al."The gamma p -> na(2)(+) (1320) -> n rho(0)pi(+) reactions within an effective Lagrangian approach".INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS 23.6(2014).