Nonleptonic Decays of Doubly Charmed Baryons

被引：9

作者：

Ivanov, M. A. ^{[1
]}

Koerner, J. G. ^{[2
]}

Lyubovitskij, V. E. ^{[3
,4
,5
,6
,7
]}

机构：

[1] Joint Inst Nucl Res, Bogoliubov Lab Theoret Phys, Dubna 141980, Russia

[2] Johannes Gutenberg Univ Mainz, Inst Phys, PRISMA Cluster Excellence, D-55099 Mainz, Germany

[3] Univ Tubingen, Kepler Ctr Astro & Particle Phys, Inst Theoret Phys, D-72076 Tubingen, Germany

[4] Univ Tecn Federico Santa Maria, Dept Fis, Casilla 110-V, Valparaiso, Chile

[5] Univ Tecn Federico Santa Maria, Ctr Cient Tecnol Valparaiso CCTVal, Casilla 110-V, Valparaiso, Chile

[6] Tomsk State Univ, Dept Phys, Tomsk 634050, Russia

[7] Tomsk Polytech Univ, Lab Particle Phys, Tomsk 634050, Russia

来源：

PHYSICS OF PARTICLES AND NUCLEI | 2020年 / 51卷 / 04期

关键词：

MODEL;

D O I：

10.1134/S1063779620040358

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We have made calculation of the W-exchange contribution to the nonleptonic two-body decays of the doubly charmed baryons Xi(++)(cc) and Omega(+)(cc). The W-exchange contributions appear in addition to the factorizable tree graph contributions and are not suppressed in general. We make use of the covariant confined quark model to calculate the tree graph as well as the W-exchange contribution. We calculate helicity amplitudes and quantitatively compare the tree graph and W-exchange contributions.

引用

页码：678 / 685

页数：8

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