Zb(10610) and Zb(10650) structures produced by the initial single pion emission in the Y(5S) decays

被引：94

作者：

Chen, Dian-Yong ^{[1
,2
,3
]}

Liu, Xiang ^{[1
,2
,4
]}

机构：

[1] Lanzhou Univ, Res Ctr Hadron, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, CSR Phys, Lanzhou 730000, Peoples R China

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

[4] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 09期

基金：

中国国家自然科学基金;

关键词：

HADRONIC TRANSITIONS; STATES;

D O I：

10.1103/PhysRevD.84.094003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose a unique mechanism called initial single pion emission existing in the (5S) decays, and further study the line shapes of d Gamma(Y(5S -> Y(nS)pi(+) pi(-)))/dm(Y(nS)pi+) (n = 1, 2, 3) and d Gamma(Y(5S -> h(b)(mP)pi(+)pi(-)))/dm(hb(mP)pi+) (m = 1, 2). We find sharp structures around 10 610 MeV and 10 650 MeV in the obtained theoretical line shapes of d Gamma(5S -> Y(nS)pi(+)pi(-))/dm(Y(nS)pi+) and d Gamma(Y(5S -> h(b)(mP)pi(+)pi(-)))/dm(hb(mP)pi+) distributions, which could naturally correspond to the Z(b)(10 610) and Z(b)(10 650) structures newly observed by Belle.

引用

页数：5

共 25 条

[1]

Adachi I., ARXIV11033419 BELL C

[2]

Adachi I., ARXIV11054583 BELL C

[3] Heavy quark spin structure in Zb resonances [J].

Bondar, A. E. ;

Garmash, A. ;

Milstein, A. I. ;

Mizuk, R. ;

Voloshin, M. B. .

PHYSICAL REVIEW D, 2011, 84 (05)

[4] An explanation of Belle states Zb(10610) and Zb(10650) [J].

Bugg, D. V. .

EPL, 2011, 96 (01)

[5] Phenomenology of heavy meson chiral lagrangians [J].

Casalbuoni, R ;

Deandrea, A ;

DiBartolomeo, N ;

Catto, R ;

Feruglio, F ;

Nardulli, G .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1997, 281 (03) :146-238

[6] Charged bottomoniumlike states Zb(10610) and Zb(10650) and the Y(5S) → Y(2S)π+π- decay [J].

Chen, Dian-Yong ;

Liu, Xiang ;

Zhu, Shi-Lin .

PHYSICAL REVIEW D, 2011, 84 (07)

[7] Dipion invariant mass distribution of the anomalous Υ(1S)π+ π- and Υ(2S)π+ π- production near the peak of Υ(10860) [J].

Chen, Dian-Yong ;

He, Jun ;

Li, Xue-Qian ;

Liu, Xiang .

PHYSICAL REVIEW D, 2011, 84 (07)

[8] Observation of anomalous Y(1S)π+π- and Y(2S)π+π- production near the Y(5S) resonance [J].

Chen, K. -F. ;

Hou, W. -S. ;

Shapkin, M. ;

Sokolov, A. ;

Adachi, I. ;

Aihara, H. ;

Arinstein, K. ;

Aulchenko, V. ;

Aushev, T. ;

Bakich, A. M. ;

Balagura, V. ;

Bay, A. ;

Belous, K. ;

Bhardwaj, V. ;

Bitenc, U. ;

Bondar, A. ;

Bozek, A. ;

Bracko, M. ;

Brodzicka, J. ;

Browder, T. E. ;

Chang, P. ;

Chao, Y. ;

Chen, A. ;

Chen, W. T. ;

Chistov, R. ;

Choi, Y. ;

Dalseno, J. ;

Danilov, M. ;

Dash, M. ;

Drutskoy, A. ;

Eidelman, S. ;

Gabyshev, N. ;

Golob, B. ;

Ha, H. ;

Haba, J. ;

Hayasaka, K. ;

Hayashii, H. ;

Hazumi, M. ;

Heffernan, D. ;

Hoshi, Y. ;

Hsiung, Y. B. ;

Hyun, H. J. ;

Iijima, T. ;

Inami, K. ;

Ishikawa, A. ;

Ishino, H. ;

Itoh, R. ;

Iwasaki, M. ;

Iwasaki, Y. ;

Kah, D. H. .

PHYSICAL REVIEW LETTERS, 2008, 100 (11)

[9] Vector and axial-vector charmoniumlike states [J].

Chen, Wei ;

Zhu, Shi-Lin .

PHYSICAL REVIEW D, 2011, 83 (03)

[10] Nonfactorizable contributions in B decays to charmonium:: The case of B-→K-hc -: art. no. 054023 [J].

Colangelo, P ;

De Fazio, F ;

Pham, TN .

PHYSICAL REVIEW D, 2004, 69 (05) :9

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