Improved measurement of CP asymmetries in B0 --> (cc)K(0(*)) decays.
We present results on time-dependent CP asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 227 x 10(6) upsilon(4S) --> BB decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The amplitude of the CPasymme...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2005
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| _version_ | 1826256658231197696 |
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| author | Aubert, B Barate, R Boutigny, D Couderc, F Gaillard, J Hicheur, A Karyotakis, Y Lees, J 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 Couderc, F Gaillard, J Hicheur, A Karyotakis, Y Lees, J 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 | We present results on time-dependent CP asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 227 x 10(6) upsilon(4S) --> BB decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The amplitude of the CPasymmetry, sin2beta in the standard model, is derived from decay-time distributions from events in which one neutral B meson is fully reconstructed in a final state containing a charmonium meson and the other B meson is determined to be either a B0 or B0 from its decay products. We measure sin2beta = 0.722 +/- 0.040(stat) +/- 0.023(syst) in agreement with the standard model expectation. |
| first_indexed | 2024-03-06T18:05:44Z |
| format | Journal article |
| id | oxford-uuid:015f2f54-aa3f-418b-94bb-a0a0db1ee062 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:05:44Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:015f2f54-aa3f-418b-94bb-a0a0db1ee0622022-03-26T08:34:35ZImproved measurement of CP asymmetries in B0 --> (cc)K(0(*)) decays.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:015f2f54-aa3f-418b-94bb-a0a0db1ee062EnglishSymplectic Elements at Oxford2005Aubert, BBarate, RBoutigny, DCouderc, FGaillard, JHicheur, AKaryotakis, YLees, JTisserand, VZghiche, APalano, APompili, AChen, JQi, NRong, GWang, PZhu, YEigen, GOfte, IStugu, BAbrams, GBorgland, ABreon, ABBrown, DButton-Shafer, JWe present results on time-dependent CP asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 227 x 10(6) upsilon(4S) --> BB decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The amplitude of the CPasymmetry, sin2beta in the standard model, is derived from decay-time distributions from events in which one neutral B meson is fully reconstructed in a final state containing a charmonium meson and the other B meson is determined to be either a B0 or B0 from its decay products. We measure sin2beta = 0.722 +/- 0.040(stat) +/- 0.023(syst) in agreement with the standard model expectation. |
| spellingShingle | Aubert, B Barate, R Boutigny, D Couderc, F Gaillard, J Hicheur, A Karyotakis, Y Lees, J 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 Improved measurement of CP asymmetries in B0 --> (cc)K(0(*)) decays. |
| title | Improved measurement of CP asymmetries in B0 --> (cc)K(0(*)) decays. |
| title_full | Improved measurement of CP asymmetries in B0 --> (cc)K(0(*)) decays. |
| title_fullStr | Improved measurement of CP asymmetries in B0 --> (cc)K(0(*)) decays. |
| title_full_unstemmed | Improved measurement of CP asymmetries in B0 --> (cc)K(0(*)) decays. |
| title_short | Improved measurement of CP asymmetries in B0 --> (cc)K(0(*)) decays. |
| title_sort | improved measurement of cp asymmetries in b0 gt cc k 0 decays |
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