Inclusive production of the X(3872) -: art. no. 011501

被引:17
|
作者
Braaten, E [1 ]
机构
[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
来源
PHYSICAL REVIEW D | 2006年 / 73卷 / 01期
关键词
D O I
10.1103/PhysRevD.73.011501
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
If the X(3872) is a loosely-bound D*(0)(D) over bar (0)/D-0(D) over bar*(8) molecule, its inclusive production rate can be described by the NRQCD factorization formalism that applies to inclusive quarkonium production. We argue that if the molecule has quantum numbers J(PC)=1(++), the most important term in the factorization formula should be the color-octet S-3(1) term. This is also one of the two most important terms in the factorization formulas for chi(cJ). Since the color-octet S-3(1) term dominates chi(cJ) production for many processes, the ratio of the inclusive direct production rates for X and chi(cJ) should be roughly the same for these processes. The assumption that the ratio of the production rates for X and chi(cJ) is the same for all processes is used to estimate the inclusive production rate of X in B meson decays, Z(0) decays, and in p (p) over bar collisions.
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页数:5
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