Scattering of D and D* mesons off the X(3872)

被引:39
|
作者
Canham, David L. [1 ,2 ]
Hammer, H. -W. [1 ,2 ]
Springer, Roxanne P. [3 ]
机构
[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany
[2] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
[3] Duke Univ, Dept Phys, Durham, NC 27708 USA
来源
PHYSICAL REVIEW D | 2009年 / 80卷 / 01期
关键词
EFFECTIVE-FIELD THEORY; CHARMONIUM SPECTROSCOPY; DEUTERON SCATTERING; MOLECULES; STATES;
D O I
10.1103/PhysRevD.80.014009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Both the mass (just below the (DD0)-D-*0 threshold) and the likely quantum numbers (J(PC)=1(++)) of the X(3872) suggest that it is either a weakly bound hadronic "molecule" (X(3872)similar to 1/2[(DD0)-D-*0+(DD0)-D-*0]) or a virtual state of charmed mesons. Assuming the X(3872) is a weakly bound molecule, the scattering of neutral D and D-* mesons off the X(3872) can be predicted from the X(3872) binding energy. We calculate the phase shifts and cross section for scattering of D-0 and D-*0 mesons and their antiparticles off the X(3872) in an effective field theory for short-range interactions. This provides another example of a three-body process, along with those in nuclear and atomic systems, that displays universal properties. It may be possible to extract the scattering within the final state interactions of B-c decays and/or other LHC events.
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页数:7
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