Measurement of the branching fractions for ψ(2s)→e+e- and ψ(2s)→μ+μ-
We measure the branching fractions of the ψ(2S) meson to the leptonic final states e+e- and μ+μ- relative to that for ψ(2S)→J/ψπ+π-. The method uses ψ(2S) mesons produced in the decay of B mesons at the Υ(4S) resonance in a data sample collected with the BABAR detector at the Stanford Linear Acceler...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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| _version_ | 1826298099232931840 |
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| author | Aubert, B Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Palano, A Pompili, A Chen, G Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Reinertsen, P Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J Cahn, R |
| author_facet | Aubert, B Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Palano, A Pompili, A Chen, G Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Reinertsen, P Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J Cahn, R |
| author_sort | Aubert, B |
| collection | OXFORD |
| description | We measure the branching fractions of the ψ(2S) meson to the leptonic final states e+e- and μ+μ- relative to that for ψ(2S)→J/ψπ+π-. The method uses ψ(2S) mesons produced in the decay of B mesons at the Υ(4S) resonance in a data sample collected with the BABAR detector at the Stanford Linear Accelerator Center. Using previous measurements for the ψ(2S)→J/ψπ+π- branching fraction, we determine the e+e- and μ+μ- branching fractions to be 0.0078±0.0009±0.0008 and 0.0067±0.0008±0.0007, respectively. |
| first_indexed | 2024-03-07T04:41:40Z |
| format | Journal article |
| id | oxford-uuid:d1dd5849-a493-455b-8d43-0ab75527d0ce |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:41:40Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:d1dd5849-a493-455b-8d43-0ab75527d0ce2022-03-27T07:59:52ZMeasurement of the branching fractions for ψ(2s)→e+e- and ψ(2s)→μ+μ- Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d1dd5849-a493-455b-8d43-0ab75527d0ceEnglishSymplectic Elements at Oxford2002Aubert, BBoutigny, DGaillard, JHicheur, AKaryotakis, YLees, JRobbe, PTisserand, VPalano, APompili, AChen, GChen, JQi, NRong, GWang, PZhu, YEigen, GReinertsen, PStugu, BAbrams, GBorgland, ABreon, ABBrown, DButton-Shafer, JCahn, RWe measure the branching fractions of the ψ(2S) meson to the leptonic final states e+e- and μ+μ- relative to that for ψ(2S)→J/ψπ+π-. The method uses ψ(2S) mesons produced in the decay of B mesons at the Υ(4S) resonance in a data sample collected with the BABAR detector at the Stanford Linear Accelerator Center. Using previous measurements for the ψ(2S)→J/ψπ+π- branching fraction, we determine the e+e- and μ+μ- branching fractions to be 0.0078±0.0009±0.0008 and 0.0067±0.0008±0.0007, respectively. |
| spellingShingle | Aubert, B Boutigny, D Gaillard, J Hicheur, A Karyotakis, Y Lees, J Robbe, P Tisserand, V Palano, A Pompili, A Chen, G Chen, J Qi, N Rong, G Wang, P Zhu, Y Eigen, G Reinertsen, P Stugu, B Abrams, G Borgland, A Breon, AB Brown, D Button-Shafer, J Cahn, R Measurement of the branching fractions for ψ(2s)→e+e- and ψ(2s)→μ+μ- |
| title | Measurement of the branching fractions for ψ(2s)→e+e- and ψ(2s)→μ+μ-
|
| title_full | Measurement of the branching fractions for ψ(2s)→e+e- and ψ(2s)→μ+μ-
|
| title_fullStr | Measurement of the branching fractions for ψ(2s)→e+e- and ψ(2s)→μ+μ-
|
| title_full_unstemmed | Measurement of the branching fractions for ψ(2s)→e+e- and ψ(2s)→μ+μ-
|
| title_short | Measurement of the branching fractions for ψ(2s)→e+e- and ψ(2s)→μ+μ-
|
| title_sort | measurement of the branching fractions for ψ 2s e e and ψ 2s μ μ |
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