Toward e(+)e(-) -> pi(+)pi(-) annihilation inspired by higher rho mesonic states around 2.2 GeV

doi:10.1103/PhysRevD.102.034037

	Toward e(+)e(-) -> pi(+)pi(-) annihilation inspired by higher rho mesonic states around 2.2 GeV
	Wang, Li-Ming 1,2,5; Wang, Jun-Zhang 1,2,5; Liu, Xiang 1,2,3,4,5
刊名	PHYSICAL REVIEW D
	2020-08-31
卷号	102 期号:3 页码:7
ISSN号	1550-7998
DOI	10.1103/PhysRevD.102.034037
通讯作者	Liu, Xiang(xiangliu@lzu.edu.cn)
英文摘要	Very recently, the BABAR Collaboration indicated that there exists an explicit enhancement structure near 2.2 GeV when focusing on the e(+) e(-) -> pi(+)pi(-) process again, which inspires our interest in studying the production of higher rho mesonic states. Since the branching ratio of pi(+)pi(-) channel of D-wave rho states are much smaller than S-wave states, we choose rho(1900) and rho(2150) as the intermediate states in e(+) e(-) -> pi(+)pi(-), where rho(1900) and rho(2150) are treated as rho(3S) and rho(4S) states, respectively. Our result indicates that the BABAR's data of e(+) e(-) -> pi(+)pi(-) around 2 GeV can be depicted well, which shows that this enhancement structure near 2.2 GeV existing in e(+) e(-) -> pi(+)pi(-) can be due to the contribution from two rho mesons, rho(1900) and rho(2150). Additionally, this conclusion can be enforced by the consistence of the extracted values of Gamma(e+e-) B(pi(+)pi(-)) of rho(1900) and rho(2150) in the whole fitting processes and the corresponding theoretical calculations. The present study of e(+) e(-) -> pi(+)pi(-) data may provide valuable information to establish the rho meson family.
资助项目	China National Funds for Distinguished Young Scientists[11825503] ; National Program for Support of Top-notch Young Professionals - Science and Technology Department of Qinghai Province[2020-ZJ-728]
WOS关键词	NARROW DIP STRUCTURE ; CROSS-SECTION ; 1.9 GEV/C(2)
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000564047400004
资助机构	China National Funds for Distinguished Young Scientists ; National Program for Support of Top-notch Young Professionals - Science and Technology Department of Qinghai Province
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/139853]
专题	中国科学院近代物理研究所
通讯作者	Liu, Xiang
作者单位	1.Lanzhou Univ, Res Ctr Hadron & CSR Phys, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 3.Qinghai Normal Univ, Xining 810000, Peoples R China 4.Lanzhou Univ, Joint Res Ctr Phys, Xining 810000, Peoples R China 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Li-Ming,Wang, Jun-Zhang,Liu, Xiang. Toward e(+)e(-) -> pi(+)pi(-) annihilation inspired by higher rho mesonic states around 2.2 GeV[J]. PHYSICAL REVIEW D,2020,102(3):7.
APA	Wang, Li-Ming,Wang, Jun-Zhang,&Liu, Xiang.(2020).Toward e(+)e(-) -> pi(+)pi(-) annihilation inspired by higher rho mesonic states around 2.2 GeV.PHYSICAL REVIEW D,102(3),7.
MLA	Wang, Li-Ming,et al."Toward e(+)e(-) -> pi(+)pi(-) annihilation inspired by higher rho mesonic states around 2.2 GeV".PHYSICAL REVIEW D 102.3(2020):7.