Light-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ ΞQQ′q→ΛQ′ weak decays
Abstract We analyze the weak decay of doubly-heavy baryon decays into anti-triplets $$\Lambda _Q$$ ΛQ with light-cone sum rules. To calculate the decay form factors, both bottom and charmed anti-triplets $$\Lambda _b$$ Λb and $$\Lambda _c$$ Λc are described by the same set of leading twist light-con...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-06-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-019-7014-y |
| _version_ | 1818293087993069568 |
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| author | Yu-Ji Shi Ye Xing Zhen-Xing Zhao |
| author_facet | Yu-Ji Shi Ye Xing Zhen-Xing Zhao |
| author_sort | Yu-Ji Shi |
| collection | DOAJ |
| description | Abstract We analyze the weak decay of doubly-heavy baryon decays into anti-triplets $$\Lambda _Q$$ ΛQ with light-cone sum rules. To calculate the decay form factors, both bottom and charmed anti-triplets $$\Lambda _b$$ Λb and $$\Lambda _c$$ Λc are described by the same set of leading twist light-cone distribution amplitudes. With the obtained form factors, we perform a phenomenology study on the corresponding semi-leptonic decays. The decay widths are calculated and the branching ratios given in this work are expected to be tested by future experimental data, which will help us to understand the underlying dynamics in doubly-heavy baryon decays. |
| first_indexed | 2024-12-13T03:10:17Z |
| format | Article |
| id | doaj.art-f92ea604de1743fbbdc702e2cbdb2c4c |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-13T03:10:17Z |
| publishDate | 2019-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-f92ea604de1743fbbdc702e2cbdb2c4c2022-12-22T00:01:37ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-06-0179611310.1140/epjc/s10052-019-7014-yLight-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ ΞQQ′q→ΛQ′ weak decaysYu-Ji Shi0Ye Xing1Zhen-Xing Zhao2INPAC, SKLPPC, School of Physics and Astronomy, Shanghai Jiao Tong UniversityINPAC, SKLPPC, School of Physics and Astronomy, Shanghai Jiao Tong UniversityINPAC, SKLPPC, School of Physics and Astronomy, Shanghai Jiao Tong UniversityAbstract We analyze the weak decay of doubly-heavy baryon decays into anti-triplets $$\Lambda _Q$$ ΛQ with light-cone sum rules. To calculate the decay form factors, both bottom and charmed anti-triplets $$\Lambda _b$$ Λb and $$\Lambda _c$$ Λc are described by the same set of leading twist light-cone distribution amplitudes. With the obtained form factors, we perform a phenomenology study on the corresponding semi-leptonic decays. The decay widths are calculated and the branching ratios given in this work are expected to be tested by future experimental data, which will help us to understand the underlying dynamics in doubly-heavy baryon decays.http://link.springer.com/article/10.1140/epjc/s10052-019-7014-y |
| spellingShingle | Yu-Ji Shi Ye Xing Zhen-Xing Zhao Light-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ ΞQQ′q→ΛQ′ weak decays European Physical Journal C: Particles and Fields |
| title | Light-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ ΞQQ′q→ΛQ′ weak decays |
| title_full | Light-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ ΞQQ′q→ΛQ′ weak decays |
| title_fullStr | Light-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ ΞQQ′q→ΛQ′ weak decays |
| title_full_unstemmed | Light-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ ΞQQ′q→ΛQ′ weak decays |
| title_short | Light-cone sum rules analysis of $$\Xi _{QQ^{\prime }q}\rightarrow \Lambda _{Q^{\prime }}$$ ΞQQ′q→ΛQ′ weak decays |
| title_sort | light cone sum rules analysis of xi qq prime q rightarrow lambda q prime ξqq q λq weak decays |
| url | http://link.springer.com/article/10.1140/epjc/s10052-019-7014-y |
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