Isospin splittings in baryons with two heavy quarks

被引：23
|
作者：
Karliner, Marek [1 ]
Rosner, Jonathan L. [2 ,3 ]
机构：
[1] Tel Aviv Univ, Sch Phys & Astron, Raymond & Beverly Sackler Fac Exact Sci, IL-69978 Tel Aviv, Israel
[2] Univ Chicago, Enrico Fermi Inst, 5620 South Ellis Ave, Chicago, IL 60637 USA
[3] Univ Chicago, Dept Phys, 5620 South Ellis Ave, Chicago, IL 60637 USA
来源：
PHYSICAL REVIEW D | 2017年 / 96卷 / 03期
关键词：
CHARMED BARYONS; MASS; HADRONS; DECAYS; MODEL;
D O I：
10.1103/PhysRevD.96.033004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Isospin splittings in baryons with two heavy quarks and a u or d quark are calculated using simple methods proposed previously by the authors. The results are M(Xi(++)(cc)) - M(Xi(+)(cc)) = 1.41 +/- 0.12(+0.76) MeV, M(Xi(0)(bb)) - M(Xi(-)(bb)) = -4.78 +/- 0.06(+0.03) MeV, and M(Xi(+)(bc)) - M(Xi(0)(bc)) = -1.69 +/- 0.07(+0.39) MeV,where the statistical errors reflect uncertainties in input mass splittings, and the systematic errors are associated with the choice of constituent-quark masses.
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页数：4
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