Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/123645
Title: | Search for mixing-induced CP violation using partial reconstruction of B¯0→D*+Xℓ−ν¯ℓ and kaon tagging |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Partícules (Matèria) Mesons (Física nuclear) Violació CP (Física nuclear) Particles Mesons (Nuclear physics) CP violation (Nuclear physics) |
Issue Date: | 8-Feb-2016 |
Publisher: | American Physical Society |
Abstract: | We describe in detail a previously published measurement of C P violation in B 0 - ¯ B 0 oscillations, based on an integrated luminosity of 425.7 fb − 1 collected by the BABAR experiment at the PEPII collider. We apply a novel technique to a sample of about 6 million ¯ B 0 → D * + ℓ − ¯ ν ℓ decays selected with partial reconstruction of the D * + meson. The charged lepton identifies the flavor of one B meson at its decay time, the flavor of the other B is determined by kaon tagging. We determine a C P violating asymmetry A C P = ( N ( B 0 B 0 ) − N ( ¯ B 0 ¯ B 0 ) ) / ( N ( B 0 B 0 ) + N ( ¯ B 0 ¯ B 0 ) ) = ( 0.06 ± 0.1 7 + 0.38 − 0.32 ) % corresponding to Δ C P = 1 − | q / p | = ( 0.29 ± 0.8 4 + 1.88 − 1.61 ) × 1 0 − 3 . This measurement is consistent and competitive with those obtained at the B factories with dilepton events. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.93.032001 |
It is part of: | Physical Review D, 2016, vol. 93, num. 3, p. 032001-1-032001-13 |
URI: | http://hdl.handle.net/2445/123645 |
Related resource: | https://doi.org/10.1103/PhysRevD.93.032001 |
ISSN: | 2470-0010 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
658766.pdf | 960.09 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.