Details

Autor(en) / Beteiligte

• Wehle, S
• Adachi, I
• Babu, V
• Behera, P
• Bozek, A
• Bračko, M
• Campajola, M
• Chang, M-C
• Cheon, B G
• Chilikin, K
• Cho, K
• Choi, Y
• Choudhury, S
• Cinabro, D
• Dash, N
• De Nardo, G
• Dubey, S
• Eidelman, S
• Garg, R
• Gaur, V
• Giri, A
• Goldenzweig, P
• Greenwald, D
• Haba, J
• Hayashii, H
• Hedges, M T
• Higuchi, T
• Hou, W-S
• Inami, K
• Iwasaki, Y
• Jia, S
• Jin, Y
• Joffe, D
• Kaliyar, A B
• Karyan, G
• Kim, D Y
• Kim, S H
• Kim, Y-K
• Kinoshita, K
• Korpar, S
• Kroeger, R
• Kulasiri, R
• Lange, J S
• Lee, J Y
• Li, Y B
• Libby, J
• Liptak, Z
• Liventsev, D
• Luo, T
• MacNaughton, J
• Masuda, M
• Matsuda, T
• Merola, M
• Miyata, H
• Mizuk, R
• Moon, T J
• Natochii, A
• Nayak, M
• Niebuhr, C
• Nisar, N K
• Ogawa, K
• Ogawa, S
• Onuki, Y
• Pakhlov, P
• Pakhlova, G
• Park, H
• Park, S-H
• Pestotnik, R
• Piilonen, L E
• Popov, V
• Prencipe, E
• Prim, M T
• Sakai, Y
• Sangal, A
• Savinov, V
• Senyo, K
• Sevior, M E
• Shiu, J-G
• Shwartz, B
• Starič, M
• Sutcliffe, W
• Tamponi, U
• Tao, Y
• Trabelsi, K
• Uglov, T
• Unno, Y
• Uno, S
• Vahsen, S E
• Van Tonder, R
• Varvell, K E
• Vorobyev, V
• Wang, C H
• Wang, M-Z
• Wang, P
• Wang, X L
• Xu, X
• Yang, S B
• Zhang, Z P
• Zhilich, V
• Zhukova, V

Titel

Test of Lepton-Flavor Universality in B→K^{}ℓ^{+}ℓ^{-} Decays at Belle

Ist Teil von

• Physical review letters, 2021-04, Vol.126 (16), p.161801-161801, Article 161801

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2021

Quelle

American Physical Society

Beschreibungen/Notizen

• We present a measurement of R_{K^{*}}, the branching fraction ratio B(B→K^{*}μ^{+}μ^{-})/B(B→K^{*}e^{+}e^{-}), for both charged and neutral B mesons. The ratio for the charged case R_{K^{*+}} is the first measurement ever performed. In addition, we report absolute branching fractions for the individual modes in bins of the squared dilepton invariant mass q^{2}. The analysis is based on a data sample of 711  fb^{-1}, containing 772×10^{6}  BB[over ¯] events, recorded at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. The obtained results are consistent with standard model expectations.