2024-03-28T08:43:52Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1265762016-02-18T03:41:56Zcom_10261_61com_10261_4col_10261_314
Search for CP Violation in B-0-(B-0)over bar Mixing Using Partial Reconstruction of B-0 -> D*(-)Xl(+)nu(l) and a Kaon Tag
Babar Collaboration
Lees, J. P.
Martínez-Vidal, Fernando
Oyanguren, Arantza
Villanueva-Pérez, P.
Ministerio de Educación, Cultura y Deporte (España)
National Science Foundation (US)
Natural Sciences and Engineering Research Council of Canada
Federal Ministry of Education and Research (Germany)
German Research Foundation
Babar detector
We present results of a search for CP violation in B-0-(B) over bar (0) mixing with the BABAR detector. We select a sample of B0 -> D*-Xl(+)nu decays with a partial reconstruction method and use kaon tagging to assess the flavor of the other B meson in the event. We determine the CP violating asymmetryA(CP) [N((BB0)-B-0) - N((B-0) over bar (B-0) over bar)]/[N((B-0) over bar (B-0) over bar) + N((BB0)-B-0)] = (0.06 +/- 0.17 +/- 0.38-0.32)%, corresponding to Delta(CP) = 1- vertical bar q/p vertical bar = (0.29 +/- 0.84+1.88-1.61) X 10(-3).
We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (U.S.), NSERC (Canada), IHEP (China), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (Netherlands), NFR (Norway), MIST (Russia), MEC (Spain), and PPARC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation.
Peer reviewed
2013-09-03
artículo
http://purl.org/coar/resource_type/c_6501
Physical Review Letters 111 (10): 101802 - 7 (2013)
0031-9007
http://hdl.handle.net/10261/126576
10.1103/PhysRevLett.111.101802
1079-7114
http://dx.doi.org/10.13039/501100003176
http://dx.doi.org/10.13039/100000001
http://dx.doi.org/10.13039/501100000038
http://dx.doi.org/10.13039/501100002347
http://dx.doi.org/10.13039/501100001659
en
http://dx.doi.org/10.1103/PhysRevLett.111.101802
Sí
open
American Physical Society