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

被引：66

作者：

Ali, Ahmed ^{[1
]}

Hambrock, Christian ^{[1
]}

Aslam, M. Jamil ^{[2
]}

机构：

[1] Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany

[2] Quaid I Azam Univ, Dept Phys, Islamabad, Pakistan

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 16期

关键词：

HADRONIC TRANSITIONS; DECAY; STATES;

D O I：

10.1103/PhysRevLett.104.162001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyze the Belle data [K. F. Chen et al. (Belle Collaboration), Phys. Rev. Lett. 100, 112001 (2008); I. Adachi et al. (Belle Collaboration), arXiv:0808.2445] on the processes e(+)e(-) -> gamma(1S)pi(+) pi(-), gamma(2S)pi(+) pi(-) near the peak of the gamma(5S) resonance, which are found to be anomalously large in rates compared to similar dipion transitions between the lower gamma resonances. Assuming these final states arise from the production and decays of the J(PC) = 1(--) state Y-b (10890), which we interpret as a bound (diquark- antidiquark) tetraquark state [bq][(b) over bar(q) over bar], a dynamical model for the decays Y-b -> gamma(1S)pi(+)pi(-),gamma(2S)pi(+)pi(-) is presented. Depending on the phase space, these decays receive significant contributions from the scalar 0(++) states, f(0) (600) and f(0)(980), and from the 2(++) q (q) over bar -meson f(2)(1270). Our model provides excellent fits for the decay distributions, supporting Yb as a tetraquark state.

引用

页数：4

共 29 条

[1]

ADACHI I, ARXIV08082445 BELL C

[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] A case for hidden b(b)over-bar tetraquarks based on e+e- → b(b)over-bar cross section between √s=10.54 and 11.20 GeV [J].

Ali, Ahmed ;

Hambrock, Christian ;

Ahmed, Ishtiaq ;

Aslam, M. Jamil .

PHYSICS LETTERS B, 2010, 684 (01) :28-39

[4] Review of particle physics [J].

Amsler, C. ;

Doser, M. ;

Antonelli, M. ;

Asner, D. M. ;

Babu, K. S. ;

Baer, H. ;

Band, H. R. ;

Barnett, R. M. ;

Bergren, E. ;

Beringer, J. ;

Bernardi, G. ;

Bertl, W. ;

Bichsel, H. ;

Biebel, O. ;

Bloch, P. ;

Blucher, E. ;

Blusk, S. ;

Cahn, R. N. ;

Carena, M. ;

Caso, C. ;

Cecccci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

Dahl, O. ;

D'Ambrosio, G. ;

Damour, T. ;

de Gouvea, A. ;

DeGrand, T. ;

Dobrescu, B. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. ;

Elvira, V. D. ;

Erler, J. ;

Ezhela, V. V. ;

Feng, J. L. ;

Fetscher, W. ;

Fields, B. D. ;

Foster, B. ;

Gaisser, T. K. ;

Garren, L. ;

Gerber, H. -J. ;

Gerbier, G. ;

Gherghetta, T. ;

Giudice, G. F. ;

Goodman, M. ;

Grab, C. ;

Gritsan, A. V. .

PHYSICS LETTERS B, 2008, 667 (1-5) :1-+

[5] Measurement of the e+e- → b(b)over-bar Cross Section between √s=10.54 and 11.20 GeV [J].

Aubert, B. ;

Bona, M. ;

Karyotakis, Y. ;

Lees, J. P. ;

Poireau, V. ;

Prencipe, E. ;

Prudent, X. ;

Tisserand, V. ;

Garra Tico, J. ;

Grauges, E. ;

Lopez, L. ;

Palano, A. ;

Pappagallo, M. ;

Eigen, G. ;

Stugu, B. ;

Sun, L. ;

Abrams, G. S. ;

Battaglia, M. ;

Brown, D. N. ;

Cahn, R. N. ;

Jacobsen, R. G. ;

Kerth, L. T. ;

Kolomensky, Yu. G. ;

Lynch, G. ;

Osipenkov, I. L. ;

Ronan, M. T. ;

Tackmann, K. ;

Tanabe, T. ;

Hawkes, C. M. ;

Soni, N. ;

Watson, A. T. ;

Koch, H. ;

Schroeder, T. ;

Walker, D. ;

Asgeirsson, D. J. ;

Fulsom, B. G. ;

Hearty, C. ;

Mattison, T. S. ;

McKenna, J. A. ;

Barrett, M. ;

Khan, A. ;

Blinov, V. E. ;

Bukin, A. D. ;

Buzykaev, A. R. ;

Druzhinin, V. P. ;

Golubev, V. B. ;

Onuchin, A. P. ;

Serednyakov, S. I. ;

Skovpen, Yu. I. ;

Solodov, E. P. .

PHYSICAL REVIEW LETTERS, 2009, 102 (01)

[6] CHIRAL SYMMETRY AND PSI'-]PSIPIPI DECAY [J].

BROWN, LS ;

CAHN, RN .

PHYSICAL REVIEW LETTERS, 1975, 35 (01) :1-4

[7] Mass and width of the lowest resonance in QCD [J].

Caprini, I ;

Colangelo, G ;

Leutwyler, H .

PHYSICAL REVIEW LETTERS, 2006, 96 (13)

[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] Higher tetraquark particles [J].

Drenska, N. V. ;

Faccini, R. ;

Polosa, A. D. .

PHYSICS LETTERS B, 2008, 669 (02) :160-166

[10] Note on a sigma model connection with instanton dynamics [J].

Fariborz, Amir H. ;

Jora, Renata ;

Schechter, Joseph .

PHYSICAL REVIEW D, 2008, 77 (09)

← 1 2 3 →