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Observation of D^{0}→ρ^{0}γ and Search for CP Violation in Radiative Charm Decays.

Publication ,  Journal Article
Nanut, T; Zupanc, A; Adachi, I; Aihara, H; Al Said, S; Asner, DM; Aulchenko, V; Aushev, T; Ayad, R; Babu, V; Badhrees, I; Bakich, AM; Chen, A ...
Published in: Physical review letters
February 2017

We report the first observation of the radiative charm decay D^{0}→ρ^{0}γ and the first search for CP violation in decays D^{0}→ρ^{0}γ, ϕγ, and K[over ¯]^{*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(D^{0}→ρ^{0}γ)=(1.77±0.30±0.07)×10^{-5}, where the first uncertainty is statistical and the second is systematic. The obtained CP asymmetries A_{CP}(D^{0}→ρ^{0}γ)=+0.056±0.152±0.006, A_{CP}(D^{0}→ϕγ)=-0.094±0.066±0.001, and A_{CP}(D^{0}→K[over ¯]^{*0}γ)=-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}→ϕγ)=(2.76±0.19±0.10)×10^{-5} and B(D^{0}→K[over ¯]^{*0}γ)=(4.66±0.21±0.21)×10^{-4}.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

February 2017

Volume

118

Issue

5

Start / End Page

051801

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Nanut, T., Zupanc, A., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., … Belle Collaboration, . (2017). Observation of D^{0}→ρ^{0}γ and Search for CP Violation in Radiative Charm Decays. Physical Review Letters, 118(5), 051801. https://doi.org/10.1103/physrevlett.118.051801
Nanut, T., A. Zupanc, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, V. Aulchenko, et al. “Observation of D^{0}→ρ^{0}γ and Search for CP Violation in Radiative Charm Decays.Physical Review Letters 118, no. 5 (February 2017): 051801. https://doi.org/10.1103/physrevlett.118.051801.
Nanut T, Zupanc A, Adachi I, Aihara H, Al Said S, Asner DM, et al. Observation of D^{0}→ρ^{0}γ and Search for CP Violation in Radiative Charm Decays. Physical review letters. 2017 Feb;118(5):051801.
Nanut, T., et al. “Observation of D^{0}→ρ^{0}γ and Search for CP Violation in Radiative Charm Decays.Physical Review Letters, vol. 118, no. 5, Feb. 2017, p. 051801. Epmc, doi:10.1103/physrevlett.118.051801.
Nanut T, Zupanc A, Adachi I, Aihara H, Al Said S, Asner DM, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Bansal V, Behera P, Bhardwaj V, Biswal J, Bondar A, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chistov R, Cho K, Choi S-K, Choi Y, Cinabro D, Dash N, Di Carlo S, Doležal Z, Dutta D, Eidelman S, Farhat H, Fast JE, Ferber T, Fulsom BG, 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 WW, Jaegle I, Joffe D, Joo KK, Julius T, Kaliyar AB, Kang KH, Kawasaki T, Kim DY, Kim JB, Kim KT, Kim MJ, Kim SH, Kinoshita K, Kodyš P, Korpar S, Krokovny P, Kuhr T, Kulasiri R, Kuzmin A, Kwon Y-J, Lange JS, Lee IS, Li CH, Li L, Li Y, Li Gioi L, Libby J, Liventsev D, Lubej M, Masuda M, Matsuda T, Matvienko D, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moon HK, Nakao M, Nath KJ, Nayak M, Nisar NK, Nishida S, Ogawa S, Okuno S, Pakhlov P, Pakhlova G, Pal B, Park C-S, Park CW, Park H, Paul S, Pedlar TK, Pesántez L, Pestotnik R, Petrič M, Piilonen LE, Prasanth K, 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, Sevior ME, Shebalin V, Shen CP, Shibata T-A, Shiu J-G, Shwartz B, Solovieva E, Stanič S, Starič M, Strube JF, 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 CH, Wang M-Z, Wang P, Watanabe Y, Widmann E, Won E, Yamaoka J, Yamashita Y, Yelton J, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Belle Collaboration. Observation of D^{0}→ρ^{0}γ and Search for CP Violation in Radiative Charm Decays. Physical review letters. 2017 Feb;118(5):051801.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

February 2017

Volume

118

Issue

5

Start / End Page

051801

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences