Search for η and η′ invisible decays in J/ψ→η and η′

M. Ablikim; M. N. Achasov; O. Albayrak; D. J. Ambrose; F. F. An; Q. An; J. Z. Bai; Y. Ban; J. Becker; J. V. Bennett; M. Bertani; J. M. Bian; E. Boger; O. Bondarenko; I. Boyko; R. A. Briere; V. Bytev; X. Cai; O. Cakir; A. Calcaterra; G. F. Cao; S. A. Cetin; J. F. Chang; G. Chelkov; G. Chen; H. S. Chen; J. C. Chen; M. L. Chen; S. J. Chen; X. Chen; Y. B. Chen; H. P. Cheng; Y. P. Chu; D. Cronin-Hennessy; H. L. Dai; J. P. Dai; D. Dedovich; Z. Y. Deng; A. Denig; I. Denysenko; M. Destefanis; W. M. Ding; Y. Ding; L. Y. Dong; M. Y. Dong; S. X. Du; J. Fang; S. S. Fang; H. Muramatsu; R. Poling; BESIII Collaboration

doi:10.1103/PhysRevD.87.012009

Search for η and η^′ invisible decays in J/ψ→η and η^′

M. Ablikim, M. N. Achasov, O. Albayrak, D. J. Ambrose, F. F. An, Q. An, J. Z. Bai, Y. Ban, J. Becker, J. V. Bennett, M. Bertani, J. M. Bian, E. Boger, O. Bondarenko, I. Boyko, R. A. Briere, V. Bytev, X. Cai, O. Cakir, A. CalcaterraG. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, J. C. Chen, M. L. Chen, S. J. Chen, X. Chen, Y. B. Chen, H. P. Cheng, Y. P. Chu, D. Cronin-Hennessy, H. L. Dai, J. P. Dai, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, W. M. Ding, Y. Ding, L. Y. Dong, M. Y. Dong, S. X. Du, J. Fang, S. S. Fang, H. Muramatsu, R. Poling, BESIII Collaboration

Physics and Astronomy (Twin Cities)

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

26 Scopus citations

Abstract

Using a sample of (225.3±2.8)×106 J/ψ decays collected with the BESIII detector at BEPCII, searches for invisible decays of η and η^′ in J/ψ→η and η^′ are performed. Decays of →K⁺K^- are used to tag the η and η^′ decays. No signals above background are found for the invisible decays, and upper limits at the 90% confidence level are determined to be 2.6×10^-4 for the ratio B(η→invisible) B(η→γγ) and 2.4×10^-2 for B(η^′→invisible)B(η ^′→γγ). These limits may be used to constrain light dark matter particles or spin-1 U bosons.

Original language	English (US)
Article number	012009
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	87
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.87.012009
State	Published - Jan 24 2013

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Publisher Copyright:
© 2013 American Physical Society.

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Ablikim, M., Achasov, M. N., Albayrak, O., Ambrose, D. J., An, F. F., An, Q., Bai, J. Z., Ban, Y., Becker, J., Bennett, J. V., Bertani, M., Bian, J. M., Boger, E., Bondarenko, O., Boyko, I., Briere, R. A., Bytev, V., Cai, X., Cakir, O., ... BESIII Collaboration (2013). Search for η and η^′ invisible decays in J/ψ→η and η^′ Physical Review D - Particles, Fields, Gravitation and Cosmology, 87(1), Article 012009. https://doi.org/10.1103/PhysRevD.87.012009

Ablikim, M, Achasov, MN, Albayrak, O, Ambrose, DJ, An, FF, An, Q, Bai, JZ, Ban, Y, Becker, J, Bennett, JV, Bertani, M, Bian, JM, Boger, E, Bondarenko, O, Boyko, I, Briere, RA, Bytev, V, Cai, X, Cakir, O, Calcaterra, A, Cao, GF, Cetin, SA, Chang, JF, Chelkov, G, Chen, G, Chen, HS, Chen, JC, Chen, ML, Chen, SJ, Chen, X, Chen, YB, Cheng, HP, Chu, YP, Cronin-Hennessy, D, Dai, HL, Dai, JP, Dedovich, D, Deng, ZY, Denig, A, Denysenko, I, Destefanis, M, Ding, WM, Ding, Y, Dong, LY, Dong, MY, Du, SX, Fang, J, Fang, SS, Muramatsu, H, Poling, R & BESIII Collaboration 2013, 'Search for η and η^′ invisible decays in J/ψ→η and η^′ ', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 87, no. 1, 012009. https://doi.org/10.1103/PhysRevD.87.012009

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title = "Search for η and η′ invisible decays in J/ψ→η and η′ ",

abstract = "Using a sample of (225.3±2.8)×106 J/ψ decays collected with the BESIII detector at BEPCII, searches for invisible decays of η and η′ in J/ψ→η and η′ are performed. Decays of →K+K- are used to tag the η and η′ decays. No signals above background are found for the invisible decays, and upper limits at the 90% confidence level are determined to be 2.6×10-4 for the ratio B(η→invisible) B(η→γγ) and 2.4×10-2 for B(η′→invisible)B(η ′→γγ). These limits may be used to constrain light dark matter particles or spin-1 U bosons.",

author = "M. Ablikim and Achasov, {M. N.} and O. Albayrak and Ambrose, {D. J.} and An, {F. F.} and Q. An and Bai, {J. Z.} and Y. Ban and J. Becker and Bennett, {J. V.} and M. Bertani and Bian, {J. M.} and E. Boger and O. Bondarenko and I. Boyko and Briere, {R. A.} and V. Bytev and X. Cai and O. Cakir and A. Calcaterra and Cao, {G. F.} and Cetin, {S. A.} and Chang, {J. F.} and G. Chelkov and G. Chen and Chen, {H. S.} and Chen, {J. C.} and Chen, {M. L.} and Chen, {S. J.} and X. Chen and Chen, {Y. B.} and Cheng, {H. P.} and Chu, {Y. P.} and D. Cronin-Hennessy and Dai, {H. L.} and Dai, {J. P.} and D. Dedovich and Deng, {Z. Y.} and A. Denig and I. Denysenko and M. Destefanis and Ding, {W. M.} and Y. Ding and Dong, {L. Y.} and Dong, {M. Y.} and Du, {S. X.} and J. Fang and Fang, {S. S.} and H. Muramatsu and R. Poling and {BESIII Collaboration}",

note = "Publisher Copyright: {\textcopyright} 2013 American Physical Society.",

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doi = "10.1103/PhysRevD.87.012009",

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T1 - Search for η and η′ invisible decays in J/ψ→η and η′

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Albayrak, O.

AU - Ambrose, D. J.

AU - An, F. F.

AU - An, Q.

AU - Bai, J. Z.

AU - Ban, Y.

AU - Becker, J.

AU - Bennett, J. V.

AU - Bertani, M.

AU - Bian, J. M.

AU - Boger, E.

AU - Bondarenko, O.

AU - Boyko, I.

AU - Briere, R. A.

AU - Bytev, V.

AU - Cai, X.

AU - Cakir, O.

AU - Calcaterra, A.

AU - Cao, G. F.

AU - Cetin, S. A.

AU - Chang, J. F.

AU - Chelkov, G.

AU - Chen, G.

AU - Chen, H. S.

AU - Chen, J. C.

AU - Chen, M. L.

AU - Chen, S. J.

AU - Chen, X.

AU - Chen, Y. B.

AU - Cheng, H. P.

AU - Chu, Y. P.

AU - Cronin-Hennessy, D.

AU - Dai, H. L.

AU - Dai, J. P.

AU - Dedovich, D.

AU - Deng, Z. Y.

AU - Denig, A.

AU - Denysenko, I.

AU - Destefanis, M.

AU - Ding, W. M.

AU - Ding, Y.

AU - Dong, L. Y.

AU - Dong, M. Y.

AU - Du, S. X.

AU - Fang, J.

AU - Fang, S. S.

AU - Muramatsu, H.

AU - Poling, R.

AU - BESIII Collaboration

PY - 2013/1/24

Y1 - 2013/1/24

N2 - Using a sample of (225.3±2.8)×106 J/ψ decays collected with the BESIII detector at BEPCII, searches for invisible decays of η and η′ in J/ψ→η and η′ are performed. Decays of →K+K- are used to tag the η and η′ decays. No signals above background are found for the invisible decays, and upper limits at the 90% confidence level are determined to be 2.6×10-4 for the ratio B(η→invisible) B(η→γγ) and 2.4×10-2 for B(η′→invisible)B(η ′→γγ). These limits may be used to constrain light dark matter particles or spin-1 U bosons.

AB - Using a sample of (225.3±2.8)×106 J/ψ decays collected with the BESIII detector at BEPCII, searches for invisible decays of η and η′ in J/ψ→η and η′ are performed. Decays of →K+K- are used to tag the η and η′ decays. No signals above background are found for the invisible decays, and upper limits at the 90% confidence level are determined to be 2.6×10-4 for the ratio B(η→invisible) B(η→γγ) and 2.4×10-2 for B(η′→invisible)B(η ′→γγ). These limits may be used to constrain light dark matter particles or spin-1 U bosons.

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DO - 10.1103/PhysRevD.87.012009

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JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

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