Observation of D⁰ → ρ⁰γ and Search for CP Violation in Radiative Charm Decays

  • Nanut, Tara
  • Zupanc, Anže
  • Adachi, Ichiro
  • Aihara, Hiroaki
  • Al-Said, Said A.Farha
  • ... Cheon, B. G.
  • 외 158명
Citations

WEB OF SCIENCE

5
Citations

SCOPUS

36

초록

We report the first observation of the radiative charm decay D-0 -> rho(0)gamma and the first search for CP violation in decays D-0 -> rho(0)gamma, phi gamma, and (K) over bar (*0)(892)gamma, 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(D-0 -> rho(0)gamma) = (1.77 +/- 0.30 +/- 0.07) x 10(-5), where the first uncertainty is statistical and the second is systematic. The obtained CP asymmetries A(CP)(D-0 ->rho(0)gamma) = +0.056 +/- 0.152 +/- 0.006, A(CP)(D-0 -> phi gamma) = -0.094 +/- 0.066 +/- 0.001, and A(CP)(D-0 -> (K) over bar (*0) gamma = -0.003 +/- 0.020 +/- 0.000 are consistent with no CP violation. We also present an improved measurement of the branching fractions B(D-0 -> phi gamma) = (2.76 +/- 0.19 +/- 0.10) x 10(-5) and B(D-0 -> (K) over bar (*0) gamma = (4.66 +/- 0.21 +/- 0.21) x 10(-4).

키워드

ASYMMETRYENERGYBELLE
제목
Observation of D⁰ → ρ⁰γ and Search for CP Violation in Radiative Charm Decays
저자
Nanut, TaraZupanc, AnžeAdachi, IchiroAihara, HiroakiAl-Said, Said A.FarhaAsner, David  mAulchenko, Vladimir M.Aushev, Tagir A.KhAyad, RachidBabu, VargheseBadhrees, IbtesamBakich, A. M.Bansal, V.Behera, P.Bhardwaj, V.Biswal, J.Bondar, A.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chekelian, V.Chen, A.Cheon, B. G.Chistov, R.Cho, K.Choi, S. -K.Choi, Y.Cinabro, D.Dash, N.Di Carlo, S.Dolezal, Z.Dutta, D.Eidelman, S.Farhat, H.Fast, J. E.Ferber, T.Fulsom, B. G.Gaur, V.Gabyshev, N.Garmash, A.Gillard, R.Goldenzweig, P.Golob, B.Hayasaka, K.Hayashii, H.Hou, W. -S.Iijima, T.Inami, K.Inguglia, G.Ishikawa, A.Iwasaki, Y.Jacobs, W. W.Jaegle, I.Joffe, D.Joo, K. K.Julius, T.Kaliyar, A. B.Kang, K. H.Kawasaki, T.Kim, D. Y.Kim, J. B.Kim, K. T.Kim, M. J.Kim, S. H.Kinoshita, K.Kodys, P.Korpar, S.Krokovny, P.Kuhr, T.Kulasiri, R.Kuzmin, A.Kwon, Y. -J.Lange, J. S.Lee, I. S.Li, C. H.Li, L.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Lubej, M.Masuda, M.Matsuda, T.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moon, H. K.Nakao, M.Nath, K. J.Nayak, M.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Pakhlov, P.Pakhlova, G.Pal, B.Park, C. -S.Park, C. W.Park, H.Paul, S.Pedlar, T. K.Pesantez, L.Pestotnik, R.Petric, M.Piilonen, L. E.Prasanth, K.Pulvermacher, C.Rauch, J.Ritter, M.Rostomyan, A.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Sato, Y.Savinov, V.Schulter, T.Schneider, O.Schnell, G.Schwanda, C.Schwartz, A. J.Seino, Y.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Solovieva, E.Stanic, S.Staric, M.Strube, J. F.Stypula, J.Sumiyoshi, T.Takizawa, M.Tamponi, U.Tenchini, F.Trabelsi, K.Uchida, M.Uno, S.Ushiroda, Y.Varner, G.Vinokurova, A.Vorobyev, V.Vossen, A.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, Y.Widmann, E.Won, E.Yamaoka, J.Yamashita, Y.Yelton, J.Zhang, Z. P.Zhilich, V.Zhukova, V.Zhulanov, V.
DOI
10.1103/PhysRevLett.118.051801
발행일
2017-01
유형
Article
저널명
Physical Review Letters
118
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