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

S, Wehle; I, Adachi; K, Adamczyk; H, Aihara; DM, Asner; H, Atmacan; V, Aulchenko; T, Aushev; R, Ayad; V, Babu; P, Behera; M, Berger; V, Bhardwaj; J, Biswal; A, Bozek; M, Bračko; TE, Browder; M, Campajola; L, Cao; MC, Chang; A, Chen; BG, Cheon; K, Chilikin; K, Cho; Y, Choi; S, Choudhury; D, Cinabro; S, Cunliffe; N, Dash; Nardo G, De; Capua F, Di; S, Dubey; S, Eidelman; D, Epifanov; T, Ferber; BG, Fulsom; R, Garg; V, Gaur; N, Gabyshev; A, Garmash; A, Giri; P, Goldenzweig; D, Greenwald; Y, Guan; J, Haba; O, Hartbrich; K, Hayasaka; H, Hayashii; MT, Hedges; T, Higuchi; WS, Hou; CL, Hsu; T, Iijima; K, Inami; G, Inguglia; A, Ishikawa; R, Itoh; M, Iwasaki; Y, Iwasaki; WW, Jacobs; S, Jia; Y, Jin; D, Joffe; J, Kahn; AB, Kaliyar; G, Karyan; H, Kichimi; DY, Kim; KT, Kim; SH, Kim; YK, Kim; K, Kinoshita; I, Komarov; S, Korpar; D, Kotchetkov; R, Kroeger; P, Krokovny; T, Kuhr; R, Kulasiri; R, Kumar; K, Kumara; A, Kuzmin; YJ, Kwon; JS, Lange; JY, Lee; SC, Lee; YB, Li; J, Libby; Z, Liptak; D, Liventsev; T, Luo; J, MacNaughton; M, Masuda; T, Matsuda; JT, McNeil; M, Merola; F, Metzner; H, Miyata; R, Mizuk; GB, Mohanty; TJ, Moon; R, Mussa; M, Nakao; A, Natochii; M, Nayak; C, Niebuhr; M, Niiyama; NK, Nisar; S, Nishida; K, Ogawa; S, Ogawa; H, Ono; Y, Onuki; P, Pakhlov; G, Pakhlova; H, Park; SH, Park; TK, Pedlar; R, Pestotnik; LE, Piilonen; T, Podobnik; V, Popov; E, Prencipe; MT, Prim; PK, Resmi; M, Ritter; A, Rostomyan; N, Rout; G, Russo; D, Sahoo; Y, Sakai; S, Sandilya; A, Sangal; L, Santelj; V, Savinov; O, Schneider; G, Schnell; J, Schueler; C, Schwanda; AJ, Schwartz; Y, Seino; K, Senyo; ME, Sevior; M, Shapkin; JG, Shiu; B, Shwartz; E, Solovieva; M, Starič; JF, Strube; T, Sumiyoshi; W, Sutcliffe; M, Takizawa; U, Tamponi; K, Tanida; Y, Tao; F, Tenchini; K, Trabelsi; M, Uchida; T, Uglov; Y, Unno; S, Uno; Y, Ushiroda; SE, Vahsen; Tonder R, Van; G, Varner; KE, Varvell; V, Vorobyev; CH, Wang; MZ, Wang; P, Wang; XL, Wang; E, Won; X, Xu; SB, Yang; H, Ye; JH, Yin; CZ, Yuan; ZP, Zhang; V, Zhilich; V, Zhukova; V, Zhulanov

doi:10.1103/physrevlett.126.161801

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

Shared by NobleBlocks on Apr 1, 2021 • 12:00 AM UTC

Authors:

Wehle S

Adachi I

Adamczyk K

Abstract

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 individ...

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