Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays
Publication
, Journal Article
Yang, SD; Shen, CP; Ban, Y; Abdesselam, A; Adachi, I; Aihara, H; Al Said, S; Arinstein, K; Asner, DM; Aulchenko, V; Aushev, T; Ayad, R; Li, J ...
Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology
December 16, 2014
Using data samples of 102×106 (1S) and 158×106 (2S) events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays (1S,2S)→J/ψ(ψ′)+X, where X=ηc, χcJ(J=0,1,2), ηc(2S), X(3940), and X(4160). No significant signal is observed in the spectra of the mass recoiling against the reconstructed J/ψ or ψ′ except for the evidence of χc1 production with a significance of 4.6σ for (1S)→J/ψ+χc1. The measured branching fraction B((1S)→J/ψ+χc1) is [3.90±1.21(stat)±0.23(syst)]×10-6. The 90% C.L. upper limits on the branching fractions of the other modes having a significance of less than 3σ are determined. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach.
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Published In
Physical Review D - Particles, Fields, Gravitation and Cosmology
DOI
EISSN
1550-2368
ISSN
1550-7998
Publication Date
December 16, 2014
Volume
90
Issue
11
Related Subject Headings
- Nuclear & Particles Physics
- 5107 Particle and high energy physics
- 5101 Astronomical sciences
- 4902 Mathematical physics
- 0206 Quantum Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences
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Yang, S. D., Shen, C. P., Ban, Y., Abdesselam, A., Adachi, I., Aihara, H., … Pestotnik, R. (2014). Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90(11). https://doi.org/10.1103/PhysRevD.90.112008
Yang, S. D., C. P. Shen, Y. Ban, A. Abdesselam, I. Adachi, H. Aihara, S. Al Said, et al. “Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays.” Physical Review D - Particles, Fields, Gravitation and Cosmology 90, no. 11 (December 16, 2014). https://doi.org/10.1103/PhysRevD.90.112008.
Yang SD, Shen CP, Ban Y, Abdesselam A, Adachi I, Aihara H, et al. Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2014 Dec 16;90(11).
Yang, S. D., et al. “Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays.” Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 90, no. 11, Dec. 2014. Scopus, doi:10.1103/PhysRevD.90.112008.
Yang SD, Shen CP, Ban Y, Abdesselam A, Adachi I, Aihara H, Al Said S, Arinstein K, Asner DM, Aulchenko V, Aushev T, Ayad R, Bakich AM, Bansal V, Behera P, Bhuyan B, Bobrov A, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Danilov M, Dingfelder J, DoleŽal Z, Drásal Z, Drutskoy A, Dutta K, Eidelman S, Farhat H, Fast JE, Ferber T, Gaur V, Gabyshev N, Ganguly S, Garmash A, Gillard R, Goh YM, Golob B, Haba J, Hara T, Hayasaka K, Hayashii H, He XH, Hou WS, Huschle M, Iijima T, Inami K, Ishikawa A, Itoh R, Jaegle I, Joffe D, Joo KK, Julius T, Kawasaki T, Kim DY, Kim HJ, Kim JB, Kim JH, Kim KT, Kinoshita K, Ko BR, Kodyš P, Korpar S, KriŽan P, Krokovny P, Kuzmin A, Kwon YJ, Lange JS, Li J, Li Y, Li Gioi L, Libby J, Liventsev D, Lukin P, Miyabayashi K, Miyata H, Moll A, Mussa R, Nakano E, Nakao M, Nanut T, Nisar NK, Nishida S, Okuno S, Ostrowicz W, Park CW, Park H, Pedlar TK, Pestotnik R. Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2014 Dec 16;90(11).
Published In
Physical Review D - Particles, Fields, Gravitation and Cosmology
DOI
EISSN
1550-2368
ISSN
1550-7998
Publication Date
December 16, 2014
Volume
90
Issue
11
Related Subject Headings
- Nuclear & Particles Physics
- 5107 Particle and high energy physics
- 5101 Astronomical sciences
- 4902 Mathematical physics
- 0206 Quantum Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0201 Astronomical and Space Sciences