Research output: Contribution to journal › Article › peer-review
Observation of D0 →ρ0γ and Search for CP Violation in Radiative Charm Decays. / The BELLE collaboration.
In: Physical Review Letters, Vol. 118, No. 5, 051801, 31.01.2017.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Observation of D0 →ρ0γ and Search for CP Violation in Radiative Charm Decays
AU - The BELLE collaboration
AU - Nanut, T.
AU - Zupanc, A.
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 - Biswal, J.
AU - Bondar, A.
AU - Bozek, A.
AU - Bračko, M.
AU - Browder, T. E.
AU - Červenkov, D.
AU - Chekelian, V.
AU - Chen, A.
AU - Cheon, B. G.
AU - Chistov, R.
AU - Cho, K.
AU - Choi, S. K.
AU - Choi, Y.
AU - Cinabro, D.
AU - Dash, N.
AU - Di Carlo, S.
AU - DoleŽal, Z.
AU - Dutta, D.
AU - Eidelman, S.
AU - Farhat, H.
AU - Fast, J. E.
AU - Ferber, T.
AU - Fulsom, B. G.
AU - Gaur, V.
AU - Gabyshev, N.
AU - Garmash, A.
AU - Krokovny, P.
AU - Kuzmin, A.
AU - Matvienko, D.
AU - Shebalin, V.
AU - Shwartz, B.
AU - Vinokurova, A.
AU - Vorobyev, V.
AU - Zhilich, V.
AU - Zhulanov, V.
PY - 2017/1/31
Y1 - 2017/1/31
N2 - We report the first observation of the radiative charm decay D0→ρ0γ and the first search for CP violation in decays D0→ρ0γ, φγ, and K̄∗0(892)γ, using a data sample of 943 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The branching fraction is measured to be B(D0→ρ0γ)=(1.77±0.30±0.07)×10-5, where the first uncertainty is statistical and the second is systematic. The obtained CP asymmetries ACP(D0→ρ0γ)=+0.056±0.152±0.006, ACP(D0→φγ)=-0.094±0.066±0.001, and ACP(D0→K̄∗0γ)=-0.003±0.020±0.000 are consistent with no CP violation. We also present an improved measurement of the branching fractions B(D0→φγ)=(2.76±0.19±0.10)×10-5 and B(D0→K̄∗0γ)=(4.66±0.21±0.21)×10-4.
AB - We report the first observation of the radiative charm decay D0→ρ0γ and the first search for CP violation in decays D0→ρ0γ, φγ, and K̄∗0(892)γ, using a data sample of 943 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. The branching fraction is measured to be B(D0→ρ0γ)=(1.77±0.30±0.07)×10-5, where the first uncertainty is statistical and the second is systematic. The obtained CP asymmetries ACP(D0→ρ0γ)=+0.056±0.152±0.006, ACP(D0→φγ)=-0.094±0.066±0.001, and ACP(D0→K̄∗0γ)=-0.003±0.020±0.000 are consistent with no CP violation. We also present an improved measurement of the branching fractions B(D0→φγ)=(2.76±0.19±0.10)×10-5 and B(D0→K̄∗0γ)=(4.66±0.21±0.21)×10-4.
KW - ASYMMETRY
KW - PACKAGE
KW - MESONS
KW - ENERGY
KW - BELLE
KW - MU+MU
UR - http://www.scopus.com/inward/record.url?scp=85012285868&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.118.051801
DO - 10.1103/PhysRevLett.118.051801
M3 - Article
C2 - 28211706
AN - SCOPUS:85012285868
VL - 118
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 5
M1 - 051801
ER -
ID: 10311359