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Evidence for Isospin Violation and Measurement of CP Asymmetries in B →k∗ (892)γ. / The BELLE collaboration.

In: Physical Review Letters, Vol. 119, No. 19, 191802, 07.11.2017.

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Harvard

The BELLE collaboration 2017, 'Evidence for Isospin Violation and Measurement of CP Asymmetries in B →k∗ (892)γ', Physical Review Letters, vol. 119, no. 19, 191802. https://doi.org/10.1103/PhysRevLett.119.191802

APA

The BELLE collaboration (2017). Evidence for Isospin Violation and Measurement of CP Asymmetries in B →k∗ (892)γ. Physical Review Letters, 119(19), [191802]. https://doi.org/10.1103/PhysRevLett.119.191802

Vancouver

The BELLE collaboration. Evidence for Isospin Violation and Measurement of CP Asymmetries in B →k∗ (892)γ. Physical Review Letters. 2017 Nov 7;119(19):191802. doi: 10.1103/PhysRevLett.119.191802

Author

The BELLE collaboration. / Evidence for Isospin Violation and Measurement of CP Asymmetries in B →k∗ (892)γ. In: Physical Review Letters. 2017 ; Vol. 119, No. 19.

BibTeX

@article{07988d22fbba486abe03827a6c3a32bf,
title = "Evidence for Isospin Violation and Measurement of CP Asymmetries in B →k∗ (892)γ",
abstract = "We report the first evidence for isospin violation in B→K∗γ and the first measurement of the difference of CP asymmetries between B+→K∗+γ and B0→K∗0γ. This analysis is based on the data sample containing 772×106BB pairs that was collected with the Belle detector at the KEKB energy-asymmetric e+e- collider. We find evidence for the isospin violation with a significance of 3.1σ, Δ0+=[+6.2±1.5(stat)±0.6(syst)±1.2(f+-/f00)]%, where the third uncertainty is due to the uncertainty on the fraction of B+B- to B0B0 production in (4S) decays. The measured value is consistent with predictions of the standard model. The result for the difference of CP asymmetries is ΔACP=[+2.4±2.8(stat)±0.5(syst)]%, consistent with zero. The measured branching fractions and CP asymmetries for charged and neutral B meson decays are the most precise to date. We also calculate the ratio of branching fractions of B0→K∗0γ to Bs0→φγ.",
keywords = "K-ASTERISK-GAMMA, TO-LEADING ORDER, DECAYS, ANNIHILATION, SYMMETRY, BREAKING",
author = "{The BELLE collaboration} and T. Horiguchi and A. Ishikawa and H. Yamamoto and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and P. Behera and V. Bhardwaj and B. Bhuyan and J. Biswal and A. Bobrov and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Y. Choi and D. Cinabro and T. Czank and N. Dash and {Di Carlo}, S. and Z. Dole{\v Z}al and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and D. Epifanov and N. Gabyshev and A. Garmash and P. Krokovny and A. Kuzmin and D. Matvienko and V. Shebalin and Y. Usov and A. Vinokurova and V. Vorobyev and V. Zhilich and V. Zhulanov",
note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",
year = "2017",
month = nov,
day = "7",
doi = "10.1103/PhysRevLett.119.191802",
language = "English",
volume = "119",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "19",

}

RIS

TY - JOUR

T1 - Evidence for Isospin Violation and Measurement of CP Asymmetries in B →k∗ (892)γ

AU - The BELLE collaboration

AU - Horiguchi, T.

AU - Ishikawa, A.

AU - Yamamoto, H.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Behera, P.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Czank, T.

AU - Dash, N.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Krokovny, P.

AU - Kuzmin, A.

AU - Matvienko, D.

AU - Shebalin, V.

AU - Usov, Y.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Zhilich, V.

AU - Zhulanov, V.

N1 - Publisher Copyright: © 2017 American Physical Society.

PY - 2017/11/7

Y1 - 2017/11/7

N2 - We report the first evidence for isospin violation in B→K∗γ and the first measurement of the difference of CP asymmetries between B+→K∗+γ and B0→K∗0γ. This analysis is based on the data sample containing 772×106BB pairs that was collected with the Belle detector at the KEKB energy-asymmetric e+e- collider. We find evidence for the isospin violation with a significance of 3.1σ, Δ0+=[+6.2±1.5(stat)±0.6(syst)±1.2(f+-/f00)]%, where the third uncertainty is due to the uncertainty on the fraction of B+B- to B0B0 production in (4S) decays. The measured value is consistent with predictions of the standard model. The result for the difference of CP asymmetries is ΔACP=[+2.4±2.8(stat)±0.5(syst)]%, consistent with zero. The measured branching fractions and CP asymmetries for charged and neutral B meson decays are the most precise to date. We also calculate the ratio of branching fractions of B0→K∗0γ to Bs0→φγ.

AB - We report the first evidence for isospin violation in B→K∗γ and the first measurement of the difference of CP asymmetries between B+→K∗+γ and B0→K∗0γ. This analysis is based on the data sample containing 772×106BB pairs that was collected with the Belle detector at the KEKB energy-asymmetric e+e- collider. We find evidence for the isospin violation with a significance of 3.1σ, Δ0+=[+6.2±1.5(stat)±0.6(syst)±1.2(f+-/f00)]%, where the third uncertainty is due to the uncertainty on the fraction of B+B- to B0B0 production in (4S) decays. The measured value is consistent with predictions of the standard model. The result for the difference of CP asymmetries is ΔACP=[+2.4±2.8(stat)±0.5(syst)]%, consistent with zero. The measured branching fractions and CP asymmetries for charged and neutral B meson decays are the most precise to date. We also calculate the ratio of branching fractions of B0→K∗0γ to Bs0→φγ.

KW - K-ASTERISK-GAMMA

KW - TO-LEADING ORDER

KW - DECAYS

KW - ANNIHILATION

KW - SYMMETRY

KW - BREAKING

UR - http://www.scopus.com/inward/record.url?scp=85034018409&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.119.191802

DO - 10.1103/PhysRevLett.119.191802

M3 - Article

AN - SCOPUS:85034018409

VL - 119

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 19

M1 - 191802

ER -

ID: 9872012