Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate.
The mass m(eta(c)) and total width Gamma(eta(c))(tot) of the eta(c) meson have been measured in two-photon interactions at the SLAC e(+)e(-) asymmetric B Factory with the BABAR detector. With a sample of approximately 2500 reconstructed eta(c)-->K(0)(S)K+/-pi(-/+) decays in 88 fb(-1) of data,...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2004
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| _version_ | 1826262466879815680 |
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| author | Aubert, B Barate, R Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Zghiche, A Palano, A Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J |
| author_facet | Aubert, B Barate, R Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Zghiche, A Palano, A Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J |
| author_sort | Aubert, B |
| collection | OXFORD |
| description | The mass m(eta(c)) and total width Gamma(eta(c))(tot) of the eta(c) meson have been measured in two-photon interactions at the SLAC e(+)e(-) asymmetric B Factory with the BABAR detector. With a sample of approximately 2500 reconstructed eta(c)-->K(0)(S)K+/-pi(-/+) decays in 88 fb(-1) of data, the results are m(eta(c))=2982.5+/-1.1(stat)+/-0.9(syst) MeV/c(2) and Gamma(eta(c))(tot)=34.3+/-2.3(stat)+/-0.9(syst) MeV/c(2). Using the same decay mode, a second resonance with 112+/-24 events is observed with a mass of 3630.8+/-3.4(stat)+/-1.0(syst) MeV/c(2) and width of 17.0+/-8.3(stat)+/-2.5(syst) MeV/c(2). This observation is consistent with expectations for the eta(c)(2S) state. |
| first_indexed | 2024-03-06T19:36:37Z |
| format | Journal article |
| id | oxford-uuid:1f44d405-974c-40e1-8f0f-67cbe23dbd76 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:36:37Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:1f44d405-974c-40e1-8f0f-67cbe23dbd762022-03-26T11:20:54ZMeasurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1f44d405-974c-40e1-8f0f-67cbe23dbd76EnglishSymplectic Elements at Oxford2004Aubert, BBarate, RBoutigny, DGaillard, JHicheur, AKaryotakis, YLees, JRobbe, PTisserand, VZghiche, APalano, APompili, AChen, JQi, NRong, GWang, PZhu, YEigen, GOfte, IStugu, BAbrams, GBorgland, ABreon, ABBrown, DButton-Shafer, JThe mass m(eta(c)) and total width Gamma(eta(c))(tot) of the eta(c) meson have been measured in two-photon interactions at the SLAC e(+)e(-) asymmetric B Factory with the BABAR detector. With a sample of approximately 2500 reconstructed eta(c)-->K(0)(S)K+/-pi(-/+) decays in 88 fb(-1) of data, the results are m(eta(c))=2982.5+/-1.1(stat)+/-0.9(syst) MeV/c(2) and Gamma(eta(c))(tot)=34.3+/-2.3(stat)+/-0.9(syst) MeV/c(2). Using the same decay mode, a second resonance with 112+/-24 events is observed with a mass of 3630.8+/-3.4(stat)+/-1.0(syst) MeV/c(2) and width of 17.0+/-8.3(stat)+/-2.5(syst) MeV/c(2). This observation is consistent with expectations for the eta(c)(2S) state. |
| spellingShingle | Aubert, B Barate, R Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Zghiche, A Palano, A Pompili, A Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Ofte, I Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate. |
| title | Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate. |
| title_full | Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate. |
| title_fullStr | Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate. |
| title_full_unstemmed | Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate. |
| title_short | Measurements of the mass and width of the eta(c) meson and of an eta(c)(2S) candidate. |
| title_sort | measurements of the mass and width of the eta c meson and of an eta c 2s candidate |
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