English

First Observation of the Decay B0->psi(2S)pi0

High Energy Physics - Experiment 2016-03-02 v1
Authors: V. Chobanova , J. Dalseno , C. Kiesling , A. Abdesselam , I. Adachi , H. Aihara , D. M. Asner , T. Aushev , R. Ayad , V. Babu , I. Badhrees , S. Bahinipati , A. M. Bakich , E. Barberio , P. Behera , V. Bhardwaj , B. Bhuyan , J. Biswal , A. Bobrov , A. Bozek , M. Bračko , T. E. Browder , D. Červenkov , V. Chekelian , A. Chen , B. G. Cheon , R. Chistov , K. Cho , Y. Choi , D. Cinabro , N. Dash , Z. Doležal , Z. Drásal , A. Drutskoy , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , B. G. Fulsom , V. Gaur , N. Gabyshev , A. Garmash , R. Gillard , Y. M. Goh , P. Goldenzweig , B. Golob , O. Grzymkowska , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , W. -S. Hou , T. Iijima , K. Inami , A. Ishikawa , Y. Iwasaki , I. Jaegle , H. B. Jeon , D. Joffe , K. K. Joo , T. Julius , E. Kato , P. Katrenko , T. Kawasaki , D. Y. Kim , H. J. Kim , J. B. Kim , K. T. Kim , M. J. Kim , S. H. Kim , Y. J. Kim , K. Kinoshita , P. Kodyš , S. Korpar , P. Križan , P. Krokovny , T. Kuhr , R. Kumar , T. Kumita , A. Kuzmin , Y. -J. Kwon , I. S. Lee , H. Li , L. Li , Y. Li , L. Li Gioi , J. Libby , D. Liventsev , M. Masuda , D. Matvienko , H. Miyata , R. Mizuk , G. B. Mohanty , S. Mohanty , A. Moll , H. K. Moon , T. Mori , R. Mussa , E. Nakano , M. Nakao , T. Nanut , Z. Natkaniec , M. Nayak , N. K. Nisar , S. Nishida , S. Ogawa , P. Pakhlov , G. Pakhlova , B. Pal , C. W. Park , H. Park , S. Paul , T. K. Pedlar , R. Pestotnik , M. Petrič , L. E. Piilonen , C. Pulvermacher , J. Rauch , E. Ribežl , M. Ritter , S. Ryu , H. Sahoo , Y. Sakai , S. Sandilya , T. Sanuki , V. Savinov , T. Schlüter , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , O. Seon , M. E. Sevior , V. Shebalin , T. -A. Shibata , J. -G. Shiu , B. Shwartz , F. Simon , J. B. Singh , Y. -S. Sohn , A. Sokolov , E. Solovieva , M. Starič , J. Stypula , M. Sumihama , K. Sumisawa , T. Sumiyoshi , U. Tamponi , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , C. Van Hulse , P. Vanhoefer , G. Varner , A. Vinokurova , V. Vorobyev , M. N. Wagner , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , M. Watanabe , Y. Watanabe , K. M. Williams , E. Won , J. Yamaoka , S. Yashchenko , H. Ye , J. Yelton , C. Z. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc
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Abstract

We report a measurement of the B0→ψ(2S)π0B^0\rightarrow\psi(2S)\pi^0 branching fraction based on the full Υ(4S)\Upsilon(4S) data set of 772×106772\times10^{6} BBˉB\bar{B} pairs collected by the Belle detector at the KEKB asymmetric-energy e+e−e^+e^- collider. We obtain B(B0→ψ(2S)π0)=(1.17±0.17(stat)±0.08(syst))×10−5B(B^0\rightarrow\psi(2S)\pi^0) = (1.17\pm0.17\text{(stat)}\pm0.08\text{(syst)})\times10^{-5}. The result has a significance of 7.2 standard deviations and is the first observation of the decay B0→ψ(2S)π0B^0\rightarrow\psi(2S)\pi^0.

Keywords

B meson decay branching fraction psi(2S) Belle experiment KEKB collider Upsilon(4S) first observation

Cite

@article{arxiv.1512.06895,
  title  = {First Observation of the Decay B0->psi(2S)pi0},
  author = {V. Chobanova and J. Dalseno and C. Kiesling and A. Abdesselam and I. Adachi and H. Aihara and D. M. Asner and T. Aushev and R. Ayad and V. Babu and I. Badhrees and S. Bahinipati and A. M. Bakich and E. Barberio and P. Behera and V. Bhardwaj and B. Bhuyan and J. Biswal and A. Bobrov and A. Bozek and M. Bračko and T. E. Browder and D. Červenkov and V. Chekelian and A. Chen and B. G. Cheon and R. Chistov and K. Cho and Y. Choi and D. Cinabro and N. Dash and Z. Doležal and Z. Drásal and A. Drutskoy and S. Eidelman and H. Farhat and J. E. Fast and T. Ferber and B. G. Fulsom and V. Gaur and N. Gabyshev and A. Garmash and R. Gillard and Y. M. Goh and P. Goldenzweig and B. Golob and O. Grzymkowska and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and W. -S. Hou and T. Iijima and K. Inami and A. Ishikawa and Y. Iwasaki and I. Jaegle and H. B. Jeon and D. Joffe and K. K. Joo and T. Julius and E. Kato and P. Katrenko and T. Kawasaki and D. Y. Kim and H. J. Kim and J. B. Kim and K. T. Kim and M. J. Kim and S. H. Kim and Y. J. Kim and K. Kinoshita and P. Kodyš and S. Korpar and P. Križan and P. Krokovny and T. Kuhr and R. Kumar and T. Kumita and A. Kuzmin and Y. -J. Kwon and I. S. Lee and H. Li and L. Li and Y. Li and L. Li Gioi and J. Libby and D. Liventsev and M. Masuda and D. Matvienko and H. Miyata and R. Mizuk and G. B. Mohanty and S. Mohanty and A. Moll and H. K. Moon and T. Mori and R. Mussa and E. Nakano and M. Nakao and T. Nanut and Z. Natkaniec and M. Nayak and N. K. Nisar and S. Nishida and S. Ogawa and P. Pakhlov and G. Pakhlova and B. Pal and C. W. Park and H. Park and S. Paul and T. K. Pedlar and R. Pestotnik and M. Petrič and L. E. Piilonen and C. Pulvermacher and J. Rauch and E. Ribežl and M. Ritter and S. Ryu and H. Sahoo and Y. Sakai and S. Sandilya and T. Sanuki and V. Savinov and T. Schlüter and O. Schneider and G. Schnell and C. Schwanda and A. J. Schwartz and Y. Seino and K. Senyo and O. Seon and M. E. Sevior and V. Shebalin and T. -A. Shibata and J. -G. Shiu and B. Shwartz and F. Simon and J. B. Singh and Y. -S. Sohn and A. Sokolov and E. Solovieva and M. Starič and J. Stypula and M. Sumihama and K. Sumisawa and T. Sumiyoshi and U. Tamponi and Y. Teramoto and K. Trabelsi and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Usov and C. Van Hulse and P. Vanhoefer and G. Varner and A. Vinokurova and V. Vorobyev and M. N. Wagner and C. H. Wang and M. -Z. Wang and P. Wang and X. L. Wang and M. Watanabe and Y. Watanabe and K. M. Williams and E. Won and J. Yamaoka and S. Yashchenko and H. Ye and J. Yelton and C. Z. Yuan and Y. Yusa and Z. P. Zhang and V. Zhilich and V. Zhulanov and A. Zupanc},
  journal= {arXiv preprint arXiv:1512.06895},
  year   = {2016}
}

Comments

16 pages, 2 figures, PRD(RC)

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