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.
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页数：10
相关论文
共 73 条
[21]   X(3872) as a hadronic molecule and its decays to charmonium states and pions [J].
Dong, Yubing ;
Faessler, Amand ;
Gutsche, Thomas ;
Kovalenko, Sergey ;
Lyubovitskij, Valery E. .
PHYSICAL REVIEW D, 2009, 79 (09)
[22]   Estimate for the X(3872)→γJ/ψ decay width [J].
Dong, Yubing ;
Faessler, Amand ;
Gutsche, Thomas ;
Lyubovitskij, Valery E. .
PHYSICAL REVIEW D, 2008, 77 (09)
[23]   THE PHYSICS OF NUCLEON ANTINUCLEON ANNIHILATION [J].
DOVER, CB ;
GUTSCHE, T ;
MARUYAMA, M ;
FAESSLER, A .
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, 1992, 29 :87-173
[24]   PRODUCTION OF QQBARG HYBRID MESONS IN NBARN ANNIHILATION [J].
DOVER, CB ;
GUTSCHE, T ;
FAESSLER, A ;
MAU, RV .
PHYSICS LETTERS B, 1992, 277 (1-2) :23-26
[25]   Nucleon-meson coupling constants and form factors in the quark model [J].
Downum, C. ;
Barnes, T. ;
Stone, J. R. ;
Swanson, E. S. .
PHYSICS LETTERS B, 2006, 638 (5-6) :455-460
[26]   New States and Charmonium Spectroscopy at BABAR [J].
Dunwoodie, W. .
NUCLEAR PHYSICS A, 2009, 827 (1-4) :291C-293C
[27]  
Efimov GV., 1993, QUARK CONFINEMENT MO, P177
[28]   Quarkonia and their transitions [J].
Eichten, Estia ;
Godfrey, Stephen ;
Mahlke, Hanna ;
Rosner, Jonathan L. .
REVIEWS OF MODERN PHYSICS, 2008, 80 (03) :1161-1193
[29]   D*K molecular structure of the Ds1(2460) meson [J].
Faessler, Amand ;
Gutsche, Thomas ;
Lyubovitskij, Valery E. ;
Ma, Yong-Liang .
PHYSICAL REVIEW D, 2007, 76 (11)
[30]   Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture [J].
Faessler, Amand ;
Gutsche, Thomas ;
Lyubovitskij, Valery E. ;
Ma, Yong-Liang .
PHYSICAL REVIEW D, 2007, 76 (01)
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