Actions for Measurement of the cp asymmetry in semimuonic b decays produced in ppbar collision at s**(1

Email RIS file
Bookmark
Report an Issue

Measurement of the cp asymmetry in semimuonic b decays produced in ppbar collision at s**(1/2) = 1.96 TeV [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2007.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
146 pages : digital, PDF file
Additional Creators
Fermi National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
The authors measure the asymmetry between positive and negative same-sign muon pairs originating from semileptonic decays of pairs of B hadrons. Low transverse momentum dimuon pairs are evaluated to determine B hadron content using a log likelihood fit to two-dimensional impact parameter significance templates. Corrections are made for asymmetries arising from the detector, trigger, and hadrons which are reconstructed as muons. Using 1.1 million muon pairs from data corresponding to an integrated luminosity of 1.6 fb⁻¹, they find 210,000 same-sign muon pairs with both muon candidates coming from B decays. After corrections, they measure a semileptonic asymmetry from neutral B mixing of A{sub SL} = 0.0080 ± 0.0090(stat) ± 0.0068(syst). This asymmetry can be interpreted as a constraint on the complex phase of the CKM matrix element V{sub ts} by using the B° neutral mixing contribution measured at the B factories. They measure the CP violating asymmetry from B{sub s} mixing to be A{sub SL}{sup s} = 0.020 ± 0.028.
Report Numbers
E 1.99:fermilab-thesis-2007-39
fermilab-thesis-2007-39
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/01/2007.
"fermilab-thesis-2007-39"
Marino, Christopher Phillip.
Funding Information
AC02-07CH11359
View MARC record | catkey: 14709364