Lepton-Flavor-Dependent Angular Analysis of B →k∗ℓ+ℓ-

(Belle Collaboration)

doi:10.1103/PhysRevLett.118.111801

Lepton-Flavor-Dependent Angular Analysis of B →k∗ℓ+ℓ-

(Belle Collaboration)

Department of Physics

Research output: Contribution to journal › Article › peer-review

299 Citations (Scopus)

Abstract

We present a measurement of angular observables and a test of lepton flavor universality in the B→K∗ℓ+ℓ- decay, where ℓ is either e or μ. The analysis is performed on a data sample corresponding to an integrated luminosity of 711 fb-1 containing 772×106 BB pairs, collected at the (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 2.6σ.

Original language	English
Article number	111801
Journal	Physical review letters
Volume	118
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.118.111801
Publication status	Published - 2017 Mar 13

Bibliographical note

Funding Information:
We acknowledge support from MEXT, JSPS and Nagoya's TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, BK21Plus, WCU and RSRI (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (U.S.).

Publisher Copyright:
© 2017 American Physical Society.

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.118.111801

Cite this

@article{b5350856d8f041c1b0ec091756e7d250,

title = "Lepton-Flavor-Dependent Angular Analysis of B →k∗ℓ+ℓ-",

abstract = "We present a measurement of angular observables and a test of lepton flavor universality in the B→K∗ℓ+ℓ- decay, where ℓ is either e or μ. The analysis is performed on a data sample corresponding to an integrated luminosity of 711 fb-1 containing 772×106 BB pairs, collected at the (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 2.6σ.",

author = "{(Belle Collaboration)} and S. Wehle and C. Niebuhr and S. Yashchenko and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and V. Aulchenko and T. Aushev and R. Ayad and T. Aziz and V. Babu and Bakich, {A. M.} and V. Bansal and E. Barberio and W. Bartel and P. Behera and B. Bhuyan and J. Biswal and A. Bobrov and A. Bondar and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and Y. Choi and D. Cinabro and N. Dash and J. Dingfelder and Z. Dole{\v Z}al and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and D. Epifanov and H. Farhat and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and V. Gaur and N. Gabyshev and A. Garmash and Kwon, {Y. J.}",

note = "Funding Information: We acknowledge support from MEXT, JSPS and Nagoya's TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, BK21Plus, WCU and RSRI (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (U.S.). Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = mar,

day = "13",

doi = "10.1103/PhysRevLett.118.111801",

language = "English",

volume = "118",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Lepton-Flavor-Dependent Angular Analysis of B →k∗ℓ+ℓ-

AU - (Belle Collaboration)

AU - Wehle, S.

AU - Niebuhr, C.

AU - Yashchenko, S.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Aziz, T.

AU - Babu, V.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Barberio, E.

AU - Bartel, W.

AU - Behera, P.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dash, N.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Kwon, Y. J.

N1 - Funding Information: We acknowledge support from MEXT, JSPS and Nagoya's TLPRC (Japan); ARC (Australia); FWF (Austria); NSFC and CCEPP (China); MSMT (Czechia); CZF, DFG, EXC153, and VS (Germany); DST (India); INFN (Italy); MOE, MSIP, NRF, BK21Plus, WCU and RSRI (Korea); MNiSW and NCN (Poland); MES and RFAAE (Russia); ARRS (Slovenia); IKERBASQUE and UPV/EHU (Spain); SNSF (Switzerland); MOE and MOST (Taiwan); and DOE and NSF (U.S.). Publisher Copyright: © 2017 American Physical Society.

PY - 2017/3/13

Y1 - 2017/3/13

N2 - We present a measurement of angular observables and a test of lepton flavor universality in the B→K∗ℓ+ℓ- decay, where ℓ is either e or μ. The analysis is performed on a data sample corresponding to an integrated luminosity of 711 fb-1 containing 772×106 BB pairs, collected at the (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 2.6σ.

AB - We present a measurement of angular observables and a test of lepton flavor universality in the B→K∗ℓ+ℓ- decay, where ℓ is either e or μ. The analysis is performed on a data sample corresponding to an integrated luminosity of 711 fb-1 containing 772×106 BB pairs, collected at the (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 2.6σ.

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UR - http://www.scopus.com/inward/citedby.url?scp=85015862638&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.118.111801

DO - 10.1103/PhysRevLett.118.111801

M3 - Article

C2 - 28368653

AN - SCOPUS:85015862638

SN - 0031-9007

VL - 118

JO - Physical review letters

JF - Physical review letters

IS - 11

M1 - 111801

ER -

Lepton-Flavor-Dependent Angular Analysis of B →k∗ℓ+ℓ-

Abstract

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