Charged bottomoniumlike states Zb(10610) and Zb(10650) and the Y(5S) → Y(2S)π+π- decay

被引：57

作者：

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

Liu, Xiang ^{[1
,3
]}

Zhu, Shi-Lin ^{[4
,5
]}

机构：

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

[2] Inst Modern Phys CAS, Nucl Theory Grp, Lanzhou 730000, Peoples R China

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

[4] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[5] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 07期

基金：

中国国家自然科学基金;

关键词：

HADRONIC TRANSITIONS;

D O I：

10.1103/PhysRevD.84.074016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Inspired by the newly observed two charged bottomoniumlike states, we consider the possible contribution from the intermediate Z(b)(10610) and Z(b)(10650) states to the Y(5S) -> Y(2S)pi(+)pi(-) decay process, which naturally explains Belle's previous observation of the anomalous Y(2S)pi(+)pi(-) production near the peak of Y(5S) at root s = 10: 87 GeV [K. F. Chen et al. (Belle Collaboration), Phys. Rev. Lett. 100, 112001 (2008)]. The resulting d Gamma(Y(5S) -> Y(2S)pi(+)pi(-))/dm(pi+pi-) and d Gamma(Y(5S) -> Y(2S)pi(+)pi(-))/dcos theta distributions agree with Belle's measurement after inclusion of these Z(b) states. This formalism also reproduces the Belle observation of the double-peak structure and its reflection in the Y(2S)pi(+) invariant mass spectrum of the Y(5S) -> Y(2S)pi(+)pi(-) decay.

引用

页数：6

共 27 条

[1]

ADACHI I, 2011, FLAVOR PHYS CP UNPUB

[2] Experimental evidence for a light and broad scalar resonance in D+ → π-π+π+ decay [J].

Aitala, EM ;

Amato, S ;

Anjos, JC ;

Appel, JA ;

Ashery, D ;

Banerjee, S ;

Bediaga, I ;

Blaylock, G ;

Bracker, SB ;

Burchat, PR ;

Burnstein, RA ;

Carter, T ;

Carvalho, HS ;

Copty, NK ;

Cremaldi, LM ;

Darling, C ;

Denisenko, K ;

Devmal, S ;

Fernandez, A ;

Fox, GE ;

Gagnon, P ;

Gobel, C ;

Gounder, K ;

Halling, AM ;

Herrera, G ;

Hurvits, G ;

James, C ;

Kasper, PA ;

Kwan, S ;

Langs, DC ;

Leslie, J ;

Lundberg, B ;

Magnin, J ;

Massafferri, A ;

MayTal-Beck, S ;

Meadows, B ;

Neto, JRTD ;

Mihalcea, D ;

Milburn, RH ;

de Miranda, JM ;

Napier, A ;

Nguyen, A ;

d'Oliveira, AB ;

O'Shaughnessy, K ;

Peng, KC ;

Perera, LP ;

Purohit, MV ;

Quinn, B ;

Radeztsky, S ;

Rafatian, A .

PHYSICAL REVIEW LETTERS, 2001, 86 (05) :770-774

[3] Tetraquark Interpretation of the BELLE Data on the Anomalous γ(1S)π+ π- and γ(2S)π+ π- Production near the γ(5S) Resonance [J].

Ali, Ahmed ;

Hambrock, Christian ;

Aslam, M. Jamil .

PHYSICAL REVIEW LETTERS, 2010, 104 (16)

[4] UPSILON(3S)-]UPSILON(1S)PI-PI-DECAY - IS THE PI-PI-SPECTRUM PUZZLE AN INDICATION OF A B(B)OVER-BAR-Q(Q)OVER-BAR-RESONANCE [J].

ANISOVICH, VV ;

BUGG, DV ;

SARANTSEV, AV ;

ZOU, BS .

PHYSICAL REVIEW D, 1995, 51 (09) :R4619-R4622

[5]

BESSON D, 1993, ANNU REV NUCL PART S, V43, P333

[6] 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)

[7] Heavy quarkonium: progress, puzzles, and opportunities [J].

Brambilla, N. ;

Eidelman, S. ;

Heltsley, B. K. ;

Vogt, R. ;

Bodwin, G. T. ;

Eichten, E. ;

Frawley, A. D. ;

Meyer, A. B. ;

Mitchell, R. E. ;

Papadimitriou, V. ;

Petreczky, P. ;

Petrov, A. A. ;

Robbe, P. ;

Vairo, A. ;

Andronic, A. ;

Arnaldi, R. ;

Artoisenet, P. ;

Bali, G. ;

Bertolin, A. ;

Bettoni, D. ;

Brodzicka, J. ;

Bruno, G. E. ;

Caldwell, A. ;

Catmore, J. ;

Chang, C. -H. ;

Chao, K. -T. ;

Chudakov, E. ;

Cortese, P. ;

Crochet, P. ;

Drutskoy, A. ;

Ellwanger, U. ;

Faccioli, P. ;

Mokhtar, A. Gabareen ;

Garcia i Tormo, X. ;

Hanhart, C. ;

Harris, F. A. ;

Kaplan, D. M. ;

Klein, S. R. ;

Kowalski, H. ;

Lansberg, J. -P. ;

Levichev, E. ;

Lombardo, V. ;

Lourenco, C. ;

Maltoni, F. ;

Mocsy, A. ;

Mussa, R. ;

Navarra, F. S. ;

Negrini, M. ;

Nielsen, M. ;

Olsen, S. L. .

EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (02) :1-178

[8]

Brambilla N., 2005, CERN2005005, P487

[9] 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)

[10] 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)

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