Hidden-charm and radiative decays of the Z(4430) as a hadronic D1(D)over-bar* bound state

被引：40

作者：

Branz, Tanja ^{[1
]}

Gutsche, Thomas ^{[1
]}

Lyubovitskij, Valery E. ^{[1
]}

机构：

[1] Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 05期

关键词：

PAIR-CREATION MODEL; JONA-LASINIO MODEL; FORM-FACTORS; MESON; SPECTROSCOPY; SIGNAL;

D O I：

10.1103/PhysRevD.82.054025

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the Z(4430)(+/-) meson within a heavy hadron molecule interpretation where the Z is considered as a bound state of a vector D*(2010) and an axial-vector D-1(2420). We give predictions for the strong hidden-charm Z(4430)(+/-) -> pi(+/-) psi and pi(+/-) psi' decay widths and also study the radiative Z(+/-)(J(P) = 1(-)) -> pi(+/-) gamma decay properties in a phenomenological Lagrangian approach. Our findings are qualitatively in line with the experimental observation that the pi(+/-) psi' transition dominates over the pi(+/-) psi decay mode despite a smaller phase space. The width for the radiative mode pi(+/-) gamma is sizable, allowing possible detection in future experiments.

引用

页数：10

共 73 条

[1] On the mechanism of open-flavor strong decays [J].

Ackleh, ES ;

Barnes, T ;

Swanson, ES .

PHYSICAL REVIEW D, 1996, 54 (11) :6811-6829

[2] 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-+

[3]

ANIKIN I, 1994, PHYS ATOM NUCL+, V57, P1021

[4] THE EXTENDED NAMBU-JONA-LASINIO MODEL WITH SEPARABLE INTERACTION - LOW-ENERGY PION PHYSICS AND PION-NUCLEON FORM-FACTOR [J].

ANIKIN, IV ;

IVANOV, MA ;

KULIMANOVA, NB ;

LYUBOVITSKIJ, VE .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1995, 65 (04) :681-690

[5]

[Anonymous], ARXIV07111485

[6] Search for the Z(4430)- at BABAR [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 D, 2009, 79 (11)

[7] Higher charmonia [J].

Barnes, T ;

Godfrey, S ;

Swanson, ES .

PHYSICAL REVIEW D, 2005, 72 (05)

[8] Higher quarkonia [J].

Barnes, T ;

Close, FE ;

Page, PR ;

Swanson, ES .

PHYSICAL REVIEW D, 1997, 55 (07) :4157-4188

[9] The meson Z+ (4430) as a tetraquark state [J].

Bracco, M. E. ;

Lee, S. H. ;

Nielsen, M. ;

da Silva, R. Rodrigues .

PHYSICS LETTERS B, 2009, 671 (02) :240-244

[10] Hadronic molecule structure of the Y(3940) and Y(4140) [J].

Branz, Tanja ;

Gutsche, Thomas ;

Lyubovitskij, Valery E. .

PHYSICAL REVIEW D, 2009, 80 (05)

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