Measurement of differential distributions of 
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 and implications on 
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Prim, M. T.; Bernlochner, F. U.; Metzner, F.; Lieret, K.; Kuhr, T.; Adachi, I.; Aihara, H.; Said, S. Al; Asner, D. M.; Atmacan, H.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Bahinipati, S.; Banerjee, S.; Bauer, M.; Behera, P. K.; Bennett, J. V.; Bessner, M.; Bhardwaj, V.; Bhuyan, B.; Bilka, T.; Biswas, D.; Bodrov, D.; Borah, J.; Bożek, A.; Bračko, M.; Branchini, P.; Browder, T. E.; Budano, A.; Campajola, M.; Cao, L.; Červenkov, D.; Chang, M. C.; Chekelian, V.; Cheon, B. G.; Chilikin, K.; Cho, H. E.; Cho, Kihyeon; Choi, Y.; Choudhury, S.; Cinabro, D.; Das, S.; Dash, N.; Marino, G. de; Nardo, G. De; Pietro, G. De; Dhamija, R.; Capua, F. Di; Dingfelder, J.; Doležal, Z.; Dong, T. V.; Epifanov, D.; Ferber, T.; Ferlewicz, D.; Frey, A.; Fulsom, B. G.; Gaur, V.; Garmash, A.; Giri, A.; Goldenzweig, P.; Graziani, E.; Gu, T.; Gudkova, K.; Hadjivasiliou, C.; Halder, S.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hedges, M. T.; Herrmann, D.; Villanueva, M. Hernández; Hsu, C.-L.; Iijima, T.; Inami, K.; Inguglia, G.; Ipsita, N.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Jacobs, W. W.; Jang, E.-J.; Jia, S.; Jin, Y.; Joo, K. K.; Kaliyar, A. B.; Kang, K. H.; Kawasaki, T.; Kiesling, C.; Kim, C. H.; Kim, D. Y.; Kim, K.-H.; Kim, Y.-K.; Kinoshita, K.; Kodyš, P.; Konno, T.; Korobov, A.; Korpar, S.; Kovalenko, E.; Križan, P.; Krokovny, P.; Kumar, M.; Kumar, Rajeev; Kumara, K.; Kuzmin, A.; Kwon, Y. J.; Lalwani, K.; Lange, J. S.; Laurenza, M.; Lee, Seungcheol; Lewis, P.; Li, J.; Li, L. K.; Li, Y.; Libby, J.; Lin, Y.-R.; Liventsev, D.; Luo, T.; Masuda, M.; Matsuda, T.; Matvienko, D.; Maurya, S. K.; Meier, F.; Merola, M.; Miyabayashi, K.; Mizuk, R.; Mohanty, G. B.; Nakamura, I.; Nakao, M.; Natkaniec, Z.; Natochii, A.; Nayak, L.; Nisar, N. K.; Nishida, S.; Ogawa, K.; Ogawa, S.; Ono, H.; Oskin, P.; Pakhlov, P.; Pakhlova, G.; Pang, T.; Pardi, S.; Park, H.; Park, J.; Park, S.-H.; Passeri, A.; Paul, S.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Podobnik, T.; Prencipe, E.; Rabusov, A.; Röhrken, M.; Rostomyan, A.; Rout, N.; Russo, G.; Sandilya, S.; Sangal, A.; Šantelj, L.; Savinov, V.; Schnell, G.; Schwanda, C.; Schwartz, A. J.; Seino, Y.; Senyo, K.; Sevior, M. E.; Shan, W.; Shapkin, M.; Sharma, C.; Shiu, J. G.; Shwartz, B.; Simon, F.; Soffer, A.; Sokolov, A.; Solovieva, E.; Starič, M.; Sumihama, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Trabelsi, K.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Vahsen, S.; Tonder, R. Van; Varner, G.; Varvell, K. E.; Vinokurova, A.; Vossen, A.; Waheed, E.; Wang, D.; Wang, M.-Z.; Watanabe, M.; Watanuki, S.; Won, E.; Yabsley, B.; Yan, W. B.; Yang, S. B.; Yelton, J.; Yook, Y.; Yuan, C. Z.; Li, Yuan; Yusa, Y.; Zhai, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.

doi:10.1103/physrevd.108.012002

Cited by 17 publications

(2 citation statements)

References 47 publications

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“…Lepton universality tests in charged current decays at Belle II Henrik Junkerkalefeld The measured asymmetries and asymmetry differences are illustrated, allowing for a comparison with recent results from Belle [25] and Belle II (cf. Sec.…”

Section: Pos(hql2023)030mentioning

confidence: 93%

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Lepton universality tests and searches for new physics in charged current decays at Belle II

Junkerkalefeld

2024

Proceedings of 16th International Conference on Heavy Quarks and Leptons — PoS(HQL2023)

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We present recent tests of lepton universality as crucial probes of the Standard Model in semileptonic 𝐵-meson decays at Belle II. All presented analyses use a data sample collected at the 𝛶(4𝑆) resonance by the Belle II experiment corresponding to an integrated luminosity of 189 fb −1 . We report three analyses that probe light-lepton universality: The first measurement of a complete set of five angular asymmetries using 𝐵 0 → 𝐷 * + ℓ − 𝜈 ℓ decays, followed by a measurement of the forward-backward asymmetry in untagged 𝐵 0 → 𝐷 * + ℓ − 𝜈 ℓ decays, and finally, measurements of the branching-fraction ratios 𝑅(𝐷 * + 𝑒/𝜇 ) = B (𝐵 0 → 𝐷 * + 𝑒 − 𝜈 𝑒 )/B (𝐵 0 → 𝐷 * + 𝜇 − 𝜈 𝜇 ), using the same untagged data set, along with the first measurement of the inclusive light-lepton ratio 𝑅(𝑋 𝑒/𝜇 ) = B (𝐵 → 𝑋𝑒 − 𝜈 𝑒 )/B (𝐵 → 𝑋 𝜇 − 𝜈 𝜇 ). Furthermore, we present two tests of heavy-to-light lepton universality. In the first test, we report the measurement of the branching-fraction ratio 𝑅(𝐷 * 𝜏/ℓ ) using hadronic tagging. In the second test, we present the first measurement of the inclusive ratio 𝑅(𝑋 𝜏/ℓ ). All presented results are consistent with their corresponding Standard Model predictions and, where applicable, with the experimental world averages.

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Section: Pos(hql2023)030mentioning

confidence: 93%

“…Additionally, our findings are compatible with experimental results of the same ratio, as reported in Refs. [1,25].…”

Section: Henrik Junkerkalefeldmentioning

confidence: 99%

Lepton universality tests and searches for new physics in charged current decays at Belle II

Junkerkalefeld

2024

Proceedings of 16th International Conference on Heavy Quarks and Leptons — PoS(HQL2023)

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Recent flavor and dark-sector results from Belle II

Garg

2024

Nuclear and Particle Physics Proceedings

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On the Magnitudes of some CKM Matrix Elements

Ligeti

2024

Progress of Theoretical and Experimental Physics

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This writeup follows the presentation at the Symposium, with emphasis on topics and ideas discussed there. It is purposefully informal, not a review of the field, and neither does it include a complete list of references. However, I hope that readers might find some comments useful or amusing, and may appreciate the challenges and reasons for excitement about recent progress and future opportunities in flavor physics.

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Measurement of differential distributions of B→D*ℓν¯ℓ and implications on |

Cited by 17 publications

References 47 publications

Lepton universality tests and searches for new physics in charged current decays at Belle II

Lepton universality tests and searches for new physics in charged current decays at Belle II

Recent flavor and dark-sector results from Belle II

On the Magnitudes of some CKM Matrix Elements

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