Space- and timelike electromagnetic kaon form factors

被引：9

作者：

Raha, Udit ^{[1
,2
]}

Kohyama, Hiroaki ^{[3
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[2] Natl Taiwan Univ, Ctr Theoret Sci, Taipei 10617, Taiwan

[3] Acad Sinica, Inst Phys, Taipei 115, Taiwan

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 11期

关键词：

HEAVY-QUARK PRODUCTION; QCD SUM-RULES; EXCLUSIVE PROCESSES; ASYMPTOTIC-BEHAVIOR; PERTURBATIVE QCD; QUANTUM CHROMODYNAMICS; CROSS-SECTIONS; PION; FACTORIZATION; ELECTROPRODUCTION;

D O I：

10.1103/PhysRevD.82.114012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A simultaneous investigation of the space- and timelike electromagnetic form factors of the charged kaon is presented within the framework of light-cone QCD, with perturbative k(T) factorization including Sudakov suppression. The effects of power suppressed subleading twists and the genuine soft QCD corrections turn out to be dominant at low- and moderate-energies/momentum transfers. Our predictions agree well with the available moderate-energy experimental data, including the recent results from the CLEO measurements and certain estimates based on the phenomenological analyses of J/psi decays.

引用

页数：16

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