Observation of Ds+ →p n ̄ and confirmation of its large branching fraction OBSERVATION of Ds+ →p n ̄ ... M. ABLIKIM et al.

(BESIII Collaboration)

doi:10.1103/PhysRevD.99.031101

Observation of Ds+ →p n ̄ and confirmation of its large branching fraction OBSERVATION of Ds+ →p n ̄ ... M. ABLIKIM et al.

(BESIII Collaboration)

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The baryonic decay Ds+→pn̄ is observed, and the corresponding branching fraction is measured to be (1.21±0.10±0.05)×10-3, where the first uncertainty is statistical and second systematic. The data sample used in this analysis was collected with the BESIII detector operating at the BEPCII e+e- double-ring collider with a center-of-mass energy of 4.178 GeV and an integrated luminosity of 3.19 fb-1. The result confirms the previous measurement by the CLEO Collaboration and is of greatly improved precision. This result will improve our understanding of the dynamical enhancement of the W-annihilation topology in the charmed meson decays.

Original language	English (US)
Article number	031101
Journal	Physical Review D
Volume	99
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.99.031101
State	Published - Feb 1 2019

Bibliographical note

Funding Information:
The BESIII Collaboration thanks the staff of BEPCII, the IHEP computing center and the supercomputing center of USTC for their strong support. The authors are grateful to Professor Hai-Yang Cheng, Dr. Xian-Wei Kang and Dr. Fu-Sheng Yu for enlightening discussions. This work is supported in part by National Key Basic Research Program of China under Contracts No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11405046, No. 11605198, No. 11235011, No. 11335008, No. 11425524, No. 11625523, No. 11635010, No. 11375170, No. 11275189, No. 11475164, No. 11475169, No. 11605196, No. 11705192; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1332201, No. U1532102, No. U1532257, No. U1532258, No. U1732263, No. U1832103; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; National 1000 Talents Program of China; Institute of Nuclear, Particle, Astronomy and Cosmology (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Contracts No. Collaborative Research Center CRC 1044, No. FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) under Contract No. 5304CDP03; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Natural Science Foundation of China (NSFC) under Contracts No. 11505034 and No. 11575077; National Science and Technology fund; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, No. DE-SC-0010504, No. DE-SC-0012069; University of Groningen (RuG) and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0.

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© 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. Funded by SCOAP .

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10.1103/PhysRevD.99.031101

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@article{3b49231c31ec409b9e1a8b8d4b51f73a,

title = "Observation of Ds+ →p n{\= } and confirmation of its large branching fraction OBSERVATION of Ds+ →p n{\= } ... M. ABLIKIM et al.",

abstract = "The baryonic decay Ds+→p{\=n} is observed, and the corresponding branching fraction is measured to be (1.21±0.10±0.05)×10-3, where the first uncertainty is statistical and second systematic. The data sample used in this analysis was collected with the BESIII detector operating at the BEPCII e+e- double-ring collider with a center-of-mass energy of 4.178 GeV and an integrated luminosity of 3.19 fb-1. The result confirms the previous measurement by the CLEO Collaboration and is of greatly improved precision. This result will improve our understanding of the dynamical enhancement of the W-annihilation topology in the charmed meson decays.",

author = "{(BESIII Collaboration)} and M. Ablikim and Achasov, {M. N.} and S. Ahmed and M. Albrecht and M. Alekseev and A. Amoroso and An, {F. F.} and Q. An and Bai, {J. Z.} and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and Y. Ban and K. Begzsuren and Bennett, {D. W.} and Bennett, {J. V.} and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and E. Boger and I. Boyko and Briere, {R. A.} and H. Cai and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and J. Chai and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and Chen, {P. L.} and Chen, {S. J.} and Chen, {X. R.} and Chen, {Y. B.} and W. Cheng and Chu, {X. K.} and G. Cibinetto and F. Cossio and Dai, {H. L.} and Dai, {J. P.} and A. Dbeyssi and D. Dedovich and Deng, {Z. Y.} and Hajime Muramatsu",

note = "Funding Information: The BESIII Collaboration thanks the staff of BEPCII, the IHEP computing center and the supercomputing center of USTC for their strong support. The authors are grateful to Professor Hai-Yang Cheng, Dr. Xian-Wei Kang and Dr. Fu-Sheng Yu for enlightening discussions. This work is supported in part by National Key Basic Research Program of China under Contracts No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11405046, No. 11605198, No. 11235011, No. 11335008, No. 11425524, No. 11625523, No. 11635010, No. 11375170, No. 11275189, No. 11475164, No. 11475169, No. 11605196, No. 11705192; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1332201, No. U1532102, No. U1532257, No. U1532258, No. U1732263, No. U1832103; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; National 1000 Talents Program of China; Institute of Nuclear, Particle, Astronomy and Cosmology (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Contracts No. Collaborative Research Center CRC 1044, No. FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) under Contract No. 5304CDP03; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Natural Science Foundation of China (NSFC) under Contracts No. 11505034 and No. 11575077; National Science and Technology fund; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, No. DE-SC-0010504, No. DE-SC-0012069; University of Groningen (RuG) and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0. 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. Funded by SCOAP . ",

year = "2019",

month = feb,

day = "1",

doi = "10.1103/PhysRevD.99.031101",

language = "English (US)",

volume = "99",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Observation of Ds+ →p n ̄ and confirmation of its large branching fraction OBSERVATION of Ds+ →p n ̄ ... M. ABLIKIM et al.

AU - (BESIII Collaboration)

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Alekseev, M.

AU - Amoroso, A.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Bai, Y.

AU - Bakina, O.

AU - Baldini Ferroli, R.

AU - Ban, Y.

AU - Begzsuren, K.

AU - Bennett, D. W.

AU - Bennett, J. V.

AU - Berger, N.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Boger, E.

AU - Boyko, I.

AU - Briere, R. A.

AU - Cai, H.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chai, J.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, P. L.

AU - Chen, S. J.

AU - Chen, X. R.

AU - Chen, Y. B.

AU - Cheng, W.

AU - Chu, X. K.

AU - Cibinetto, G.

AU - Cossio, F.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dbeyssi, A.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Muramatsu, Hajime

N1 - Funding Information: The BESIII Collaboration thanks the staff of BEPCII, the IHEP computing center and the supercomputing center of USTC for their strong support. The authors are grateful to Professor Hai-Yang Cheng, Dr. Xian-Wei Kang and Dr. Fu-Sheng Yu for enlightening discussions. This work is supported in part by National Key Basic Research Program of China under Contracts No. 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts No. 11405046, No. 11605198, No. 11235011, No. 11335008, No. 11425524, No. 11625523, No. 11635010, No. 11375170, No. 11275189, No. 11475164, No. 11475169, No. 11605196, No. 11705192; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. U1332201, No. U1532102, No. U1532257, No. U1532258, No. U1732263, No. U1832103; CAS Key Research Program of Frontier Sciences under Contracts No. QYZDJ-SSW-SLH003 and No. QYZDJ-SSW-SLH040; 100 Talents Program of CAS; National 1000 Talents Program of China; Institute of Nuclear, Particle, Astronomy and Cosmology (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Contracts No. Collaborative Research Center CRC 1044, No. FOR 2359; Istituto Nazionale di Fisica Nucleare, Italy; Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) under Contract No. 5304CDP03; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Natural Science Foundation of China (NSFC) under Contracts No. 11505034 and No. 11575077; National Science and Technology fund; The Swedish Research Council; U.S. Department of Energy under Contracts No. DE-FG02-05ER41374, No. DE-SC-0010118, No. DE-SC-0010504, No. DE-SC-0012069; University of Groningen (RuG) and the Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0. 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. Funded by SCOAP .

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The baryonic decay Ds+→pn̄ is observed, and the corresponding branching fraction is measured to be (1.21±0.10±0.05)×10-3, where the first uncertainty is statistical and second systematic. The data sample used in this analysis was collected with the BESIII detector operating at the BEPCII e+e- double-ring collider with a center-of-mass energy of 4.178 GeV and an integrated luminosity of 3.19 fb-1. The result confirms the previous measurement by the CLEO Collaboration and is of greatly improved precision. This result will improve our understanding of the dynamical enhancement of the W-annihilation topology in the charmed meson decays.

AB - The baryonic decay Ds+→pn̄ is observed, and the corresponding branching fraction is measured to be (1.21±0.10±0.05)×10-3, where the first uncertainty is statistical and second systematic. The data sample used in this analysis was collected with the BESIII detector operating at the BEPCII e+e- double-ring collider with a center-of-mass energy of 4.178 GeV and an integrated luminosity of 3.19 fb-1. The result confirms the previous measurement by the CLEO Collaboration and is of greatly improved precision. This result will improve our understanding of the dynamical enhancement of the W-annihilation topology in the charmed meson decays.

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UR - http://www.scopus.com/inward/citedby.url?scp=85062624373&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.99.031101

DO - 10.1103/PhysRevD.99.031101

M3 - Article

AN - SCOPUS:85062624373

SN - 2470-0010

VL - 99

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 031101

ER -

Observation of Ds+ →p n ̄ and confirmation of its large branching fraction OBSERVATION of Ds+ →p n ̄ ... M. ABLIKIM et al.

Abstract

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