Search for the rare decay of ψ (3686) → Λc+ p e+e-+c.c. at BESIII SEARCH for the RARE DECAY of ... M. ABLIKIM et al.

BESIII Collaboration

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Abstract

Based on a data sample of (448.1±2.9)×106ψ(3686) decays collected with the BESIII experiment, a search for the flavor changing neutral current transition ψ(3686)→Λc+pe+e-+c.c. is performed for the first time. No signal candidates are observed and the upper limit on the branching fraction of ψ(3686)→Λc+pe+e- is determined to be 1.7×10-6 at the 90% confidence level. The result is consistent with expectations from the standard model, and no evidence for new physics is found.

Original languageEnglish (US)
Article number091102
JournalPhysical Review D
Volume97
Issue number9
DOIs
StatePublished - May 1 2018

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Search for the rare decay of ψ (3686) → Λc+ p e+e-+c.c. at BESIII SEARCH for the RARE DECAY of ... M. ABLIKIM et al. / BESIII Collaboration.

In: Physical Review D, Vol. 97, No. 9, 091102, 01.05.2018.

Research output: Contribution to journalArticle

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title = "Search for the rare decay of ψ (3686) → Λc+ p e+e-+c.c. at BESIII SEARCH for the RARE DECAY of ... M. ABLIKIM et al.",
abstract = "Based on a data sample of (448.1±2.9)×106ψ(3686) decays collected with the BESIII experiment, a search for the flavor changing neutral current transition ψ(3686)→Λc+pe+e-+c.c. is performed for the first time. No signal candidates are observed and the upper limit on the branching fraction of ψ(3686)→Λc+pe+e- is determined to be 1.7×10-6 at the 90{\%} confidence level. The result is consistent with expectations from the standard model, and no evidence for new physics is found.",
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 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 A. Denig and I. Denysenko",
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AU - Achasov, M. N.

AU - Ahmed, S.

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AU - Bertani, M.

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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 - 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 - Denig, A.

AU - Denysenko, I.

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AB - Based on a data sample of (448.1±2.9)×106ψ(3686) decays collected with the BESIII experiment, a search for the flavor changing neutral current transition ψ(3686)→Λc+pe+e-+c.c. is performed for the first time. No signal candidates are observed and the upper limit on the branching fraction of ψ(3686)→Λc+pe+e- is determined to be 1.7×10-6 at the 90% confidence level. The result is consistent with expectations from the standard model, and no evidence for new physics is found.

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