Measurement of CP Violation in B⁰_d Mixing Using B⁰_d → D^*-μ⁺(ν_μ)X Decays

Thesis/Dissertation · Mon Sep 10 00:00:00 EDT 2012

DOI:https://doi.org/10.2172/1128093· OSTI ID:1128093

Ross, Anthony ^[1]

---

1. Lancaster Univ. (United Kingdom)

This thesis describes the measurement of the time-integrated semileptonic charge asymmetry in B⁰_d mixing, a^d _sl, using the decay chain of B⁰_d ! D^*-μ⁺(ν_μ), D^*- ! D⁰π^-, D⁰ ! K⁺π^-. Decay candidates are reconstructed from 10.4 fb^-1 of data recorded by the DØ detector at Fermilab’s Tevatron p$$\bar{p}$$ collder during the 2002- 2011 ‘RunII’ data taking period. Yields are extracted using a 2 minimising simultaneous binned fit where 490k D candidates are reconstructed. The measurements presented in this thesis was made possible due to sophisticated online and offline reconstruction software, precise tracking systems, and the first-order background asymmetry negating magnet polarity reversal of the DØ detector.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1128093
• Report Number(s): FERMILAB-THESIS-2012-49
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS