Study of reactions disclosing hidden charm pentaquarks with or without strangeness

被引：17

作者：

Oset, Eulogio ^{[1
,2
,3
]}

Chen, Hua-Xing ^{[4
]}

Feijoo, Albert ^{[6
,7
]}

Geng, Li-Sheng ^{[4
,5
,8
]}

Liang, Wei-Hong ^{[9
]}

Li, De-Min ^{[10
]}

Lu, Jun-Xu ^{[4
,5
]}

Magas, Vladymir K. ^{[6
,7
]}

Nieves, Juan ^{[2
]}

Ramos, Angels ^{[6
,7
]}

Roca, Luis ^{[11
]}

Wang, En

Xie, Ju-Jun ^{[3
,12
,13
,14
,15
]}

机构：

[1] Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna,Dept Fis Teor, Aptdo 22085, E-46071 Valencia, Spain

[2] Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna,IFIC, Aptdo 22085, E-46071 Valencia, Spain

[3] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China

[4] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China

[5] Beihang Univ, Int Res Ctr Nucl & Particles Cosmos, Beijing 100191, Peoples R China

[6] Univ Barcelona, Dept Estruct & Constituents Mat, Marti & Franques 1, E-08028 Barcelona, Spain

[7] Univ Barcelona, Inst Ciencies Cosmos ICCUB, Marti & Franques 1, E-08028 Barcelona, Spain

[8] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China

[9] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China

[10] Zhengzhou Univ, Dept Phys, Zhengzhou 450001, Henan, Peoples R China

[11] Univ Valencia, Ctr Mixto, CSIC, Inst Invest Paterna, Aptdo 22085, Valencia 46071, Spain

[12] Univ Murcia, Dept Fis, E-30100 Murcia, Spain

[13] Chinese Acad Sci, Res Ctr Hadron, Lanzhou 730000, Peoples R China

[14] Chinese Acad Sci, CSR Phys, Inst Modern Phys, Lanzhou 730000, Peoples R China

[15] Lanzhou Univ, Lanzhou 730000, Peoples R China

来源：

NUCLEAR PHYSICS A | 2016年 / 954卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Pentaquark reactions; Molecular states with hidden charm; BARYON RESONANCES; DIQUARK MODEL; STATES; CANDIDATES; P-C(4450); DECAYS; MESON;

D O I：

10.1016/j.nuclphysa.2016.04.038

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We present results for five reactions, Lambda(b) -> J/psi K(-)p, Lambda(b) -> J/psi eta Lambda, Lambda(b) -> J/psi pi(-)p, Lambda(b) -> J/psi K-0 Lambda and Xi(-)(b) -> J/psi K-Lambda, where combining information from the meson baryon interaction, using the chiral unitary approach, and predictions made for molecular states of hidden charm, with or without strangeness, we can evaluate invariant mass distributions for the light meson baryon states, and for those of J/psi p or J/psi Lambda. We show that with the present available information, in all of these reactions one finds peaks where the pentaquark states show up. In the Lambda(b) -> J/psi K(-)p, and Lambda(b) -> J/psi pi(-)p reactions we show that the results obtained from our study are compatible with present experimental observations. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：371 / 392

页数：22

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