Evidence for the decay B0 →p p  π0

(Belle Collaboration)

doi:10.1103/PhysRevD.99.091104

Evidence for the decay B0 →p p π0

(Belle Collaboration)

Chair of Physics I

Brookhaven National Laboratory
KEK and Graduate University for Advanced Studies (Sokendai)
High Energy Accelerator Research Organization (KEK)
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of Tokyo
University of South Carolina
Budker Institute of Nuclear Physics (SB RAS)
Novosibirsk State University
Moscow Institute of Physics and Technology
University of Tabuk
Tata Institute of Fundamental Research, Mumbai
King Abdulaziz City for Science and Technology
Pacific Northwest National Laboratory
Indian Institute of Technology Madras
Georg August Universität Göttingen
Stefan Meyer Institut für Subatomare Physik (SMI)
Indian Institute of Science Education and Research Mohali
Indian Institute of Technology Guwahati
Charles University
Jožef Stefan Institute
University of Maribor
University of Hawaii
INFN Sezione di Napoli
Università di Napoli Federico II
Humanoid Technologies Lab (H2T)
Max-Planck-Institut für Physik
National Central University
Hanyang University
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Korea Institute of Science and Technology Information
Gyeongsang National University
Sungkyunkwan University
Wayne State University
Deutsches Elektronen-Synchrotron (DESY)
Laboratoire de l'Accélérateur Linéaire
University of Melbourne
Panjab University
Virginia Polytechnic Institute and State University
Indian Institute of Technology Hyderabad
Indiana University Bloomington
Niigata University
Nara Women's University
National Taiwan University
University of Sydney
Nagoya University
Tohoku University
Osaka Prefecture University
Beihang University
Kennesaw State University
Chonnam National University
Soongsil University
Korea University
Univ. of Cincinnati
Univ. of Ljubljana
University of Mississippi
Yonsei University
Seoul National University
Kyungpook National University
Institute of High Energy Physics Chinese Academy of Science
Beijing University
Fudan University
University of Miyazaki
National Research Nuclear University MEPhI
University of Pittsburgh
Toho University
Nippon Dental University
Luther College, Decorah
Forschungszentrum Jülich (FZJ)
University of Munich
University of Malaya
EPFL
Biodonostia Health Research Institute-CIBERNED-UPV-EHU
Basque Foundation for Science
Österreichische Akademie der Wissenschaften
Yamagata University
Institute for High Energy Physics (IHEP)
Tokyo Metropolitan University
Riken
Showa Pharmaceutical University
INFN Sez. di Torino
Japan Atomic Energy Agency
Tokyo Institute of Technology
National United University
University of Florida
University of Science and Technology of China

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7 Scopus citations

Abstract

We report a search for the charmless baryonic decay B0→ppπ0 with a data sample corresponding to an integrated luminosity of 711 fb-1 containing (772±10)×106 BB pairs. The data were collected by the Belle experiment running on the (4S) resonance at the KEKB e+e- collider. We measure a branching fraction B(B0→ppπ0)=(5.0±1.8±0.6)×10-7, where the first uncertainty is statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays B0→Δ+p and B0→Δ-p, and set an upper limit on the branching fraction, B(B0→Δ+p)+B(B0→Δ-p)<1.6×10-6 at 90% confidence level.

Original language	English
Article number	091104
Journal	Physical Review D
Volume	99
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.99.091104
State	Published - 1 May 2019

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10.1103/PhysRevD.99.091104

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@article{7b86c158dbb448cd904a61aaba8e5fcc,

title = "Evidence for the decay B0 →p p π0",

abstract = "We report a search for the charmless baryonic decay B0→ppπ0 with a data sample corresponding to an integrated luminosity of 711 fb-1 containing (772±10)×106 BB pairs. The data were collected by the Belle experiment running on the (4S) resonance at the KEKB e+e- collider. We measure a branching fraction B(B0→ppπ0)=(5.0±1.8±0.6)×10-7, where the first uncertainty is statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays B0→Δ+p and B0→Δ-p, and set an upper limit on the branching fraction, B(B0→Δ+p)+B(B0→Δ-p)<1.6×10-6 at 90\% confidence level.",

author = "\{(Belle Collaboration)\} and B. Pal and I. Adachi and K. Adamczyk and H. Aihara and Asner, \{D. M.\} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and I. Badhrees and V. Bansal and P. Behera and C. Bele{\~n}o and M. Berger and V. Bhardwaj and B. Bhuyan and T. Bilka and J. Biswal and A. Bobrov and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and M. Campajola and L. Cao and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, \{B. G.\} and K. Chilikin and K. Cho and Choi, \{S. K.\} and Y. Choi and D. Cinabro and S. Cunliffe and \{Di Carlo\}, S. and Z. Dole{\v Z}al and Dong, \{T. V.\} and D. Dossett and S. Eidelman and D. Epifanov and Fast, \{J. E.\} and T. Ferber and Fulsom, \{B. G.\} and R. Garg and V. Gaur and N. Gabyshev and A. Garmash and A. Giri and S. Paul",

note = "Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2019",

month = may,

day = "1",

doi = "10.1103/PhysRevD.99.091104",

language = "English",

volume = "99",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "9",

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TY - JOUR

T1 - Evidence for the decay B0 →p p π0

AU - (Belle Collaboration)

AU - Pal, B.

AU - Adachi, I.

AU - Adamczyk, K.

AU - Aihara, H.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bansal, V.

AU - Behera, P.

AU - Beleño, C.

AU - Berger, M.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Campajola, M.

AU - Cao, L.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Dossett, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Giri, A.

AU - Paul, S.

N1 - Publisher Copyright: © 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - We report a search for the charmless baryonic decay B0→ppπ0 with a data sample corresponding to an integrated luminosity of 711 fb-1 containing (772±10)×106 BB pairs. The data were collected by the Belle experiment running on the (4S) resonance at the KEKB e+e- collider. We measure a branching fraction B(B0→ppπ0)=(5.0±1.8±0.6)×10-7, where the first uncertainty is statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays B0→Δ+p and B0→Δ-p, and set an upper limit on the branching fraction, B(B0→Δ+p)+B(B0→Δ-p)<1.6×10-6 at 90% confidence level.

AB - We report a search for the charmless baryonic decay B0→ppπ0 with a data sample corresponding to an integrated luminosity of 711 fb-1 containing (772±10)×106 BB pairs. The data were collected by the Belle experiment running on the (4S) resonance at the KEKB e+e- collider. We measure a branching fraction B(B0→ppπ0)=(5.0±1.8±0.6)×10-7, where the first uncertainty is statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays B0→Δ+p and B0→Δ-p, and set an upper limit on the branching fraction, B(B0→Δ+p)+B(B0→Δ-p)<1.6×10-6 at 90% confidence level.

UR - https://www.scopus.com/pages/publications/85066924210

U2 - 10.1103/PhysRevD.99.091104

DO - 10.1103/PhysRevD.99.091104

M3 - Article

AN - SCOPUS:85066924210

SN - 2470-0010

VL - 99

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 091104

ER -

Evidence for the decay B0 →p p π0

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