Ab?initio three-loop calculation of the W-exchange contribution to nonleptonic decays of double charm baryons

Thomas Gutsche; Mikhail A. Ivanov; Jürgen G. K?rner; Valery E. Lyubovitskij; Zhomart Tyulemissov

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Ab?initio three-loop calculation of the W-exchange contribution to nonleptonic decays of double charm baryons

机译：W交换对双魅力重子的非轻子衰变贡献的Ab？initio三环计算

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We have made an ab?initio three-loop quark model calculation of the W -exchange contribution to the nonleptonic two-body decays of the doubly charmed baryons Ξ c c + + and Ω c c + . 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 previously developed by us 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. Finally, we compare the calculated decay widths with those from other theoretical approaches when they are available.

机译：我们对双交换有魅力的重子Ξc c + +和Ωc c +的非轻子两体衰变的W交换贡献进行了一个a b？initio三环夸克模型计算。除了可分解树图贡献之外，W交换贡献也会出现，并且通常不会被抑制。我们利用我们先前开发的协变约束夸克模型来计算树形图以及W交换贡献。我们计算螺旋度振幅，并定量比较树形图和W交换贡献。最后，我们将计算得出的衰减宽度与其他理论方法获得的衰减宽度进行比较。

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《Physical review, D》 |2019年第5期|共7页
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Thomas Gutsche; Mikhail A. Ivanov; Jürgen G. K?rner; Valery E. Lyubovitskij; Zhomart Tyulemissov;
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1. Ab initio three-loop calculation of the W-exchange contribution to nonleptonic decays of double charm baryons [J] . Thomas Gutsche, Mikhail A. Ivanov, Jürgen G. K?rner, Physical review, D . 2019,第5aPta2期

机译：AB Initio The Loop计算W交换贡献的双重魅力衰变的贡献
2. Exclusive nonleptonic bottom to charm baryon decays including nonfactorizable contributions [J] . Ivanov MA., Rusetsky AG., Korner JG., Modern Physics Letters, A . 1998,第3期

机译：独特的非轻质底部可吸引重子衰变，包括不可分解的贡献
3. Analysis of the semileptonic and nonleptonic two-body decays of the double heavy charm baryon states Ξ_(cc)~(++), Ξ_(cc)~+ and Ω_(cc)~+ [J] . Physical review, D . 2019,第11aPta1期

机译：分析半重和非物质双体衰减的双重较小魅力b态χ_（CC）〜（++），ξ_（CC）〜+和ω_（CC）〜+
4. The nature of the orbitally excited charmed-strange mesons through nonleptonic B → D~((*))D_(sJ)~((*)) decays [C] . J. Segovia, C. Albertus, E. Hernandez, International Workshop on Production, Properties and Interaction of MESONS . 2012

机译：通过非整体B→D〜（（*））D_（SJ）〜（（*））衰减的轨道兴奋的奇怪助理的性质
5. First observation of an excited charm baryon decaying to omega charm baryon at the BABAR experiment. [D] . Bula, Rahmi. 2006

机译：在BABAR实验中首次观察到兴奋的魅力重子衰减为欧米茄魅力重子。
6. Stable GaSe-Like Phosphorus Carbide Monolayer with Tunable Electronic and Optical Properties from Ab Initio Calculations [O] . Xiaolin Cai, Zhili Zhu, Weiyang Yu, 2018

机译：从头算算起具有可调电子和光学性质的稳定的GaSe样碳化钨单层
7. Exclusive nonleptonic bottom to charm baryon decays including nonfactorizable contributions [O] . Ivanov, M. A., Korner, J. G., Lyubovitskij, V. E., 1998

机译：独特的非轻子底部魅力重子衰变包括无法估量的贡献

Ab?initio three-loop calculation of the W-exchange contribution to nonleptonic decays of double charm baryons

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