Charmed baryon weak decays with SU(3) flavor symmetry
Abstract We study the semileptonic and non-leptonic charmed baryon decays with SU(3) flavor symmetry, where the charmed baryons can be B c = (Ξ c 0, Ξ c +, Λ c +), B c ′ = (Σ c (++,+,0), Ξ c ′ (+,0), Ω c 0), B cc = (Ξ cc + +, Ξ cc +, Ω c +) or B cc = Ω ccc + +. With B n (′) denoted as the baryon...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP11(2017)147 |
| _version_ | 1818006089088630784 |
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| author | C. Q. Geng Y. K. Hsiao Chia-Wei Liu Tien-Hsueh Tsai |
| author_facet | C. Q. Geng Y. K. Hsiao Chia-Wei Liu Tien-Hsueh Tsai |
| author_sort | C. Q. Geng |
| collection | DOAJ |
| description | Abstract We study the semileptonic and non-leptonic charmed baryon decays with SU(3) flavor symmetry, where the charmed baryons can be B c = (Ξ c 0, Ξ c +, Λ c +), B c ′ = (Σ c (++,+,0), Ξ c ′ (+,0), Ω c 0), B cc = (Ξ cc + +, Ξ cc +, Ω c +) or B cc = Ω ccc + +. With B n (′) denoted as the baryon octet (decuplet), we find that the B c → B n ′ ℓ + ν ℓ decays are forbidden, while the Ω c 0 → Ω− ℓ + ν ℓ , Ω cc + → Ω c 0 ℓ + ν ℓ , and Ω ccc + + → Ω cc + ℓ + ν ℓ decays are the only existing Cabibbo- allowed modes for B c ′ → B n ′ ℓ + ν ℓ , B cc → B c ′ ℓ + ν ℓ , and B ccc → B cc (′) ℓ + ν ℓ , respectively. We predict the rarely studied B c → B n (′) M decays, such as ℬΞc0→Λ0K¯0,Ξc+→Ξ0π+=8.3±0.9,8.0±4.1×10−3andℬΛc+→Δ++π−,Ξc0→Ω−K+=5.5±1.3,4.8±0.5×10−3 $$ \mathrm{\mathcal{B}}\left({\Xi}_c^0\to {\Lambda}^0{\overline{K}}^0,{\Xi}_c^{+}\to {\Xi}^0{\pi}^{+}\right)=\left(8.3\pm 0.9,\ 8.0\pm 4.1\right)\times {10}^{-3}\kern0.5em \mathrm{and}\kern0.5em \mathrm{\mathcal{B}}\left({\Lambda}_c^{+}\to {\Delta}^{++}{\pi}^{-},{\Xi}_c^0\to {\Omega}^{-}{K}^{+}\right)=\left(5.5\pm 1.3,\kern0.5em 4.8\pm 0.5\right)\times {10}^{-3} $$. For the observation, the doubly and triply charmed baryon decays of Ωcc+→Ξc+K¯0,Ξcc++→Ξc+π+,Σc++K¯0,andΩccc++→Ξcc++K¯0,Ωcc+π+,Ξc+D+ $$ {\Omega}_{cc}^{+}\to {\Xi}_c^{+}{\overline{K}}^0,{\Xi}_{cc}^{++}\to \left({\Xi}_c^{+}{\pi}^{+},{\varSigma}_c^{++}{\overline{K}}^0\right),\kern0.5em \mathrm{and}\kern0.5em {\Omega}_{ccc}^{++}\to \left({\Xi}_{cc}^{++}{\overline{K}}^0,{\Omega}_{cc}^{+}{\pi}^{+},{\Xi}_c^{+}{D}^{+}\right) $$ are the favored Cabibbo-allowed decays, which are accessible to the BESIII and LHCb experiments. |
| first_indexed | 2024-04-14T04:55:36Z |
| format | Article |
| id | doaj.art-24180558ee15401a8b5c40ceced4c915 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-14T04:55:36Z |
| publishDate | 2017-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-24180558ee15401a8b5c40ceced4c9152022-12-22T02:11:10ZengSpringerOpenJournal of High Energy Physics1029-84792017-11-0120171112610.1007/JHEP11(2017)147Charmed baryon weak decays with SU(3) flavor symmetryC. Q. Geng0Y. K. Hsiao1Chia-Wei Liu2Tien-Hsueh Tsai3School of Physics and Information Engineering, Shanxi Normal UniversitySchool of Physics and Information Engineering, Shanxi Normal UniversityDepartment of Physics, National Tsing Hua UniversityDepartment of Physics, National Tsing Hua UniversityAbstract We study the semileptonic and non-leptonic charmed baryon decays with SU(3) flavor symmetry, where the charmed baryons can be B c = (Ξ c 0, Ξ c +, Λ c +), B c ′ = (Σ c (++,+,0), Ξ c ′ (+,0), Ω c 0), B cc = (Ξ cc + +, Ξ cc +, Ω c +) or B cc = Ω ccc + +. With B n (′) denoted as the baryon octet (decuplet), we find that the B c → B n ′ ℓ + ν ℓ decays are forbidden, while the Ω c 0 → Ω− ℓ + ν ℓ , Ω cc + → Ω c 0 ℓ + ν ℓ , and Ω ccc + + → Ω cc + ℓ + ν ℓ decays are the only existing Cabibbo- allowed modes for B c ′ → B n ′ ℓ + ν ℓ , B cc → B c ′ ℓ + ν ℓ , and B ccc → B cc (′) ℓ + ν ℓ , respectively. We predict the rarely studied B c → B n (′) M decays, such as ℬΞc0→Λ0K¯0,Ξc+→Ξ0π+=8.3±0.9,8.0±4.1×10−3andℬΛc+→Δ++π−,Ξc0→Ω−K+=5.5±1.3,4.8±0.5×10−3 $$ \mathrm{\mathcal{B}}\left({\Xi}_c^0\to {\Lambda}^0{\overline{K}}^0,{\Xi}_c^{+}\to {\Xi}^0{\pi}^{+}\right)=\left(8.3\pm 0.9,\ 8.0\pm 4.1\right)\times {10}^{-3}\kern0.5em \mathrm{and}\kern0.5em \mathrm{\mathcal{B}}\left({\Lambda}_c^{+}\to {\Delta}^{++}{\pi}^{-},{\Xi}_c^0\to {\Omega}^{-}{K}^{+}\right)=\left(5.5\pm 1.3,\kern0.5em 4.8\pm 0.5\right)\times {10}^{-3} $$. For the observation, the doubly and triply charmed baryon decays of Ωcc+→Ξc+K¯0,Ξcc++→Ξc+π+,Σc++K¯0,andΩccc++→Ξcc++K¯0,Ωcc+π+,Ξc+D+ $$ {\Omega}_{cc}^{+}\to {\Xi}_c^{+}{\overline{K}}^0,{\Xi}_{cc}^{++}\to \left({\Xi}_c^{+}{\pi}^{+},{\varSigma}_c^{++}{\overline{K}}^0\right),\kern0.5em \mathrm{and}\kern0.5em {\Omega}_{ccc}^{++}\to \left({\Xi}_{cc}^{++}{\overline{K}}^0,{\Omega}_{cc}^{+}{\pi}^{+},{\Xi}_c^{+}{D}^{+}\right) $$ are the favored Cabibbo-allowed decays, which are accessible to the BESIII and LHCb experiments.http://link.springer.com/article/10.1007/JHEP11(2017)147Global SymmetriesHeavy Quark Physics |
| spellingShingle | C. Q. Geng Y. K. Hsiao Chia-Wei Liu Tien-Hsueh Tsai Charmed baryon weak decays with SU(3) flavor symmetry Journal of High Energy Physics Global Symmetries Heavy Quark Physics |
| title | Charmed baryon weak decays with SU(3) flavor symmetry |
| title_full | Charmed baryon weak decays with SU(3) flavor symmetry |
| title_fullStr | Charmed baryon weak decays with SU(3) flavor symmetry |
| title_full_unstemmed | Charmed baryon weak decays with SU(3) flavor symmetry |
| title_short | Charmed baryon weak decays with SU(3) flavor symmetry |
| title_sort | charmed baryon weak decays with su 3 flavor symmetry |
| topic | Global Symmetries Heavy Quark Physics |
| url | http://link.springer.com/article/10.1007/JHEP11(2017)147 |
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