Hadronic and radiative D* widths

被引:24
|
作者
Rosner, Jonathan L. [1 ,2 ]
机构
[1] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA
[2] Univ Chicago, Dept Phys, Chicago, IL 60637 USA
来源
PHYSICAL REVIEW D | 2013年 / 88卷 / 03期
基金
美国能源部;
关键词
MESONS; TRANSITIONS; QUARKS;
D O I
10.1103/PhysRevD.88.034034
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
A recent measurement of the total D*(+) width, Gamma(tot)(D*(+)) = (83.3 +/- 1.3 +/- 1.4) keV, is shown to be close to earlier predictions based on the single-quark- transition hypothesis. Those predictions are updated using more recent masses and branching fractions to a value of 80.4 keV, with a small uncertainty associated with the radiative branching fractions of D*(0) and D*(+). A prediction for the total width of D-2* (2460) and its partial width into D-pi* and D-pi is also updated and found to be in agreement with experiment.
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页数:4
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