Observation of e + e - → γχ c1 and search for e + e - → γχ c0 , γχ c2 , and γη c at √s near 10.6 GeV at Belle

(Belle Collaboration)

Research output: Contribution to journalArticle

Abstract

Using data samples of 89.5 fb-1, 711.0 fb-1, and 121.4 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e+e-→γχcJ (J=0, 1, 2) and e+e-→γηc. A significant γχc1 signal is observed for the first time at s=10.58 GeV with a significance of 5.1σ including systematic uncertainties. No significant excesses for γχc0, γχc2, and γηc final states are found, and we set 90% credibility level upper limits on the Born cross sections (σB) at 10.52 GeV, 10.58 GeV, and 10.867 GeV. Together with cross sections measured by BESIII at lower center-of-mass energies, the energy dependency of σB(e+e-→γχc1) is obtained.

Original languageEnglish
Article number092015
JournalPhysical Review D
Volume98
Issue number9
DOIs
Publication statusPublished - 2018 Nov 1

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center of mass
energy
cross sections
detectors

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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Observation of e + e - → γχ c1 and search for e + e - → γχ c0 , γχ c2 , and γη c at √s near 10.6 GeV at Belle . / (Belle Collaboration).

In: Physical Review D, Vol. 98, No. 9, 092015, 01.11.2018.

Research output: Contribution to journalArticle

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title = "Observation of e + e - → γχ c1 and search for e + e - → γχ c0 , γχ c2 , and γη c at √s near 10.6 GeV at Belle",
abstract = "Using data samples of 89.5 fb-1, 711.0 fb-1, and 121.4 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e+e-→γχcJ (J=0, 1, 2) and e+e-→γηc. A significant γχc1 signal is observed for the first time at s=10.58 GeV with a significance of 5.1σ including systematic uncertainties. No significant excesses for γχc0, γχc2, and γηc final states are found, and we set 90{\%} credibility level upper limits on the Born cross sections (σB) at 10.52 GeV, 10.58 GeV, and 10.867 GeV. Together with cross sections measured by BESIII at lower center-of-mass energies, the energy dependency of σB(e+e-→γχc1) is obtained.",
author = "{(Belle Collaboration)} and S. Jia and Wang, {X. L.} and Shen, {C. P.} and Yuan, {C. Z.} and I. Adachi and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and V. Bansal and P. Behera and C. Bele{\~n}o and M. Berger and B. Bhuyan and T. Bilka and J. Biswal and A. Bobrov and A. Bozek and M. Bračko and Browder, {T. E.} and L. Cao and D. Červenkov and P. Chang and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and S. Cunliffe and N. Dash and {Di Carlo}, S. and Z. DoleŽal and Dong, {T. V.} and S. Eidelman and D. Epifanov and Fast, {J. E.} and T. Ferber and A. Frey and Fulsom, {B. G.} and R. Garg and V. Gaur and Eunil Won",
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T1 - Observation of e + e - → γχ c1 and search for e + e - → γχ c0 , γχ c2 , and γη c at √s near 10.6 GeV at Belle

AU - (Belle Collaboration)

AU - Jia, S.

AU - Wang, X. L.

AU - Shen, C. P.

AU - Yuan, C. Z.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Bansal, V.

AU - Behera, P.

AU - Beleño, C.

AU - Berger, M.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Cao, L.

AU - Červenkov, D.

AU - Chang, P.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Dash, N.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Ferber, T.

AU - Frey, A.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Won, Eunil

PY - 2018/11/1

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N2 - Using data samples of 89.5 fb-1, 711.0 fb-1, and 121.4 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e+e-→γχcJ (J=0, 1, 2) and e+e-→γηc. A significant γχc1 signal is observed for the first time at s=10.58 GeV with a significance of 5.1σ including systematic uncertainties. No significant excesses for γχc0, γχc2, and γηc final states are found, and we set 90% credibility level upper limits on the Born cross sections (σB) at 10.52 GeV, 10.58 GeV, and 10.867 GeV. Together with cross sections measured by BESIII at lower center-of-mass energies, the energy dependency of σB(e+e-→γχc1) is obtained.

AB - Using data samples of 89.5 fb-1, 711.0 fb-1, and 121.4 fb-1 collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at center-of-mass energies 10.52, 10.58, and 10.867 GeV, respectively, we study the exclusive reactions e+e-→γχcJ (J=0, 1, 2) and e+e-→γηc. A significant γχc1 signal is observed for the first time at s=10.58 GeV with a significance of 5.1σ including systematic uncertainties. No significant excesses for γχc0, γχc2, and γηc final states are found, and we set 90% credibility level upper limits on the Born cross sections (σB) at 10.52 GeV, 10.58 GeV, and 10.867 GeV. Together with cross sections measured by BESIII at lower center-of-mass energies, the energy dependency of σB(e+e-→γχc1) is obtained.

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U2 - 10.1103/PhysRevD.98.092015

DO - 10.1103/PhysRevD.98.092015

M3 - Article

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SN - 2470-0010

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