Heavy flavor conserved semi-leptonic decay of Bs in the covariant light-front approach
We study the heavy flavor conserved semi-leptonic decay Bs→Bℓν in the covariant light front approach. The covariant light front quark model is used to calculate the transition form factors of Bs→B(⁎) as well as Ds→D, which are consistent with the leading power predictions from the heavy quark symmet...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-03-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S055032132400052X |
| _version_ | 1797272585173467136 |
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| author | Yu-Ji Shi Zhi-Peng Xing |
| author_facet | Yu-Ji Shi Zhi-Peng Xing |
| author_sort | Yu-Ji Shi |
| collection | DOAJ |
| description | We study the heavy flavor conserved semi-leptonic decay Bs→Bℓν in the covariant light front approach. The covariant light front quark model is used to calculate the transition form factors of Bs→B(⁎) as well as Ds→D, which are consistent with the leading power predictions from the heavy quark symmetry. The angular distribution analysis on the Bs→B(⁎)lν¯ decay is performed by investigating the forward-backward asymmetry of the lepton. We also study the angular distribution of Bs→B⁎(→Bγ)lν¯ decay both through the lepton forward-backward asymmetry and the azimuth angle. The branching fractions of Bs→Blν¯ and Bs→B⁎lν¯ are at the order 10−8 and 10−9, respectively. The number of Bs→Blν¯ events is estimated to be 1.76. The branching fraction of Bs→B⁎(→Bγ)lν¯ is at the order 10−11, which is calculated by introducing Breit-Wigner distribution for the intermediate B⁎. |
| first_indexed | 2024-03-07T14:30:29Z |
| format | Article |
| id | doaj.art-de2c1e01489e40b1bfeaba72c2a38258 |
| institution | Directory Open Access Journal |
| issn | 0550-3213 |
| language | English |
| last_indexed | 2024-03-07T14:30:29Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Physics B |
| spelling | doaj.art-de2c1e01489e40b1bfeaba72c2a382582024-03-06T05:25:31ZengElsevierNuclear Physics B0550-32132024-03-011000116486Heavy flavor conserved semi-leptonic decay of Bs in the covariant light-front approachYu-Ji Shi0Zhi-Peng Xing1School of Physics, East China University of Science and Technology, Shanghai 200237, China; INPAC, Key Laboratory for Particle Astrophysics and Cosmology (MOE), Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China; Corresponding author at: School of Physics, East China University of Science and Technology, Shanghai 200237, China.Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai 200240, China; Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210023, ChinaWe study the heavy flavor conserved semi-leptonic decay Bs→Bℓν in the covariant light front approach. The covariant light front quark model is used to calculate the transition form factors of Bs→B(⁎) as well as Ds→D, which are consistent with the leading power predictions from the heavy quark symmetry. The angular distribution analysis on the Bs→B(⁎)lν¯ decay is performed by investigating the forward-backward asymmetry of the lepton. We also study the angular distribution of Bs→B⁎(→Bγ)lν¯ decay both through the lepton forward-backward asymmetry and the azimuth angle. The branching fractions of Bs→Blν¯ and Bs→B⁎lν¯ are at the order 10−8 and 10−9, respectively. The number of Bs→Blν¯ events is estimated to be 1.76. The branching fraction of Bs→B⁎(→Bγ)lν¯ is at the order 10−11, which is calculated by introducing Breit-Wigner distribution for the intermediate B⁎.http://www.sciencedirect.com/science/article/pii/S055032132400052X |
| spellingShingle | Yu-Ji Shi Zhi-Peng Xing Heavy flavor conserved semi-leptonic decay of Bs in the covariant light-front approach Nuclear Physics B |
| title | Heavy flavor conserved semi-leptonic decay of Bs in the covariant light-front approach |
| title_full | Heavy flavor conserved semi-leptonic decay of Bs in the covariant light-front approach |
| title_fullStr | Heavy flavor conserved semi-leptonic decay of Bs in the covariant light-front approach |
| title_full_unstemmed | Heavy flavor conserved semi-leptonic decay of Bs in the covariant light-front approach |
| title_short | Heavy flavor conserved semi-leptonic decay of Bs in the covariant light-front approach |
| title_sort | heavy flavor conserved semi leptonic decay of bs in the covariant light front approach |
| url | http://www.sciencedirect.com/science/article/pii/S055032132400052X |
| work_keys_str_mv | AT yujishi heavyflavorconservedsemileptonicdecayofbsinthecovariantlightfrontapproach AT zhipengxing heavyflavorconservedsemileptonicdecayofbsinthecovariantlightfrontapproach |