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Lepton-Flavor-Dependent Angular Analysis of $B\to K^\ast \ell^+\ell^-$

Publication ,  Journal Article
Collaboration, B; Wehle, S; Niebuhr, C; Yashchenko, S; Adachi, I; Aihara, H; Said, SA; Asner, DM; Aulchenko, V; Aushev, T; Ayad, R; Aziz, T ...
December 15, 2016

We present a measurement of angular observables and a test of lepton flavor universality in the $B\to K^\ast \ell^+\ell^-$ decay, where $\ell$ is either $e$ or $\mu$. The analysis is performed on a data sample corresponding to an integrated luminosity of $711~\mathrm{fb}^{-1}$ containing $772\times 10^{6}$ $B\bar B$ pairs, collected at the $\Upsilon(4S)$ resonance with the Belle detector at the asymmetric-energy $e^+e^-$ collider KEKB. The result is consistent with Standard Model (SM) expectations, where the largest discrepancy from a SM prediction is observed in the muon modes with a local significance of $2.6\sigma$.

Duke Scholars

Publication Date

December 15, 2016
 

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Collaboration, B., Wehle, S., Niebuhr, C., Yashchenko, S., Adachi, I., Aihara, H., … Zupanc, A. (2016). Lepton-Flavor-Dependent Angular Analysis of $B\to K^\ast \ell^+\ell^-$.
Collaboration, Belle, S. Wehle, C. Niebuhr, S. Yashchenko, I. Adachi, H. Aihara, S Al Said, et al. “Lepton-Flavor-Dependent Angular Analysis of $B\to K^\ast \ell^+\ell^-$,” December 15, 2016.
Collaboration B, Wehle S, Niebuhr C, Yashchenko S, Adachi I, Aihara H, et al. Lepton-Flavor-Dependent Angular Analysis of $B\to K^\ast \ell^+\ell^-$. 2016 Dec 15;
Collaboration B, Wehle S, Niebuhr C, Yashchenko S, Adachi I, Aihara H, Said SA, Asner DM, Aulchenko V, Aushev T, Ayad R, Aziz T, Babu V, Bakich AM, Bansal V, Barberio E, Bartel W, Behera P, Bhuyan B, Biswal J, Bobrov A, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Choi Y, Cinabro D, Dash N, Dingfelder J, Drásal Z, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Fulsom BG, Gaur V, Gabyshev N, Garmash A, Gillard R, Goldenzweig P, Golob B, Grzymkowska O, Guido E, Haba J, Hara T, Hayasaka K, Hayashii H, Hedges MT, Hou W-S, Hsu C-L, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki Y, Jacobs WW, Jaegle I, Jeon HB, Jin Y, Joffe D, Joo KK, Julius T, Kaliyar AB, Kang KH, Karyan G, Katrenko P, Kawasaki T, Kichimi H, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim KT, Kim MJ, Kim SH, Kinoshita K, Koch L, Kodyš P, Korpar S, Kotchetkov D, Križan P, Krokovny P, Kuhr T, Kulasiri R, Kumita T, Kuzmin A, Kwon Y-J, Lange JS, Li CH, Li L, Li Y, Gioi LL, Libby J, Lubej M, Luo T, Masuda M, Matsuda T, Miyabayashi K, Miyake H, Mizuk R, Mohanty GB, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Nayak M, Nisar NK, Nishida S, Ogawa S, Ono H, Onuki Y, Pakhlova G, Pal B, Park C-S, Park CW, Park H, Paul S, Pesántez L, Piilonen LE, Pulvermacher C, Rauch J, Ritter M, Rostomyan A, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Seon O, Seong IS, Sevior ME, Shen CP, Shibata T-A, Shiu J-G, Shwartz B, Simon F, Sinha R, Solovieva E, Starič M, Strube JF, Sumisawa K, Sumiyoshi T, Takizawa M, Tamponi U, Tenchini F, Tsuboyama T, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Ushiroda Y, Usov Y, Vahsen SE, Hulse CV, Varner G, Varvell KE, Vorobyev V, Vossen A, Waheed E, Wang CH, Wang M-Z, Wang P, Watanabe M, Watanabe Y, Widmann E, Williams KM, Won E, Yamamoto H, Yamashita Y, Ye H, Yook Y, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Ziegler M, Zupanc A. Lepton-Flavor-Dependent Angular Analysis of $B\to K^\ast \ell^+\ell^-$. 2016 Dec 15;

Publication Date

December 15, 2016