Exclusive production of Bc mesons in e+e- colliders

被引：1

作者：

Wei, Yan-Bing ^{[1
,2
]}

Li, Run-Hui ^{[3
]}

Luo, Dan ^{[4
]}

Lu, Cai-Dian ^{[1
,2
]}

Shen, Yue-Long ^{[4
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China

[2] Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China

[3] Inner Mongolia Univ, Sch Phys Sci & Technol, Hohhot 010021, Peoples R China

[4] Ocean Univ China, Coll Informat Sci & Engn, Qingdao 266100, Peoples R China

来源：

CHINESE PHYSICS C | 2018年 / 42卷 / 08期

基金：

中国国家自然科学基金;

关键词：

PQCD; B physics; form factor; PION FORM-FACTORS; HEAVY QUARKONIUM; PERTURBATIVE QCD; SEARCH; DECAYS; FACTORIZATION;

D O I：

10.1088/1674-1137/42/8/083107

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Within the framework of the perturbative QCD approach, we calculate the time-like BcBc(B-c*) form factors F(Q(2)) and A(2) (Q(2)). We include relativistic corrections and QCD corrections, either of which can give about 20% correction to the leading-order contribution, but there are cancellation effects between them. We calculate the cross sections of the e(+)e(-) -> Bc-Bc+(B-c*(+)) processes. The cross sections are enhanced at the Z pole to be sigma(PP) (Q =mz) similar to 1.3 x10(-5) pb and sigma(PV) (Q=mz) similar to 2.5 x 10(-5) pb, which are still too small to be detected by proposed e(+)e(-) colliders such as the Circular Electron Positron Collider.

引用

页数：11

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