Radiative B Meson Decay as a Probe of Physics Beyond the Standard Model: Time-Dependent CP Violation in B0 → K0S π0 γ and the B → Φ K γ Branching Fraction
Abstract
The author presents measurements of radiative B meson decays to the final states Ks0π0γ and KΦγ based on data collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e+e- collider at SLAC. In a data sample of 467 million B$$\bar{B}$$ pairs, the time-dependent CP asymmetry in B0 → Ks0π0γ decays is measured in two regions of Ks0-π0 invariant mass. In the K* region, 0.8 < m(Ks0π0) < 1.0 GeV/c2, we find SK*γ = -0.03 ± 0.29 ± 0.03 and CK*γ = -0.14 ± 0.16 ± 0.03; in the range 1.1 < m(Ks0π0) < 1.8 GeV/c2, they find SKs0π0γ = -0.78 ± 0.59 ± 0.09 and C Ks0π0γ = -0.36 ± 0.33 ± 0.04. With a sample of 228 million B$$\bar{B}$$ pairs they measure the branching fraction β(B+ → K+Φγ) = (3.5 ± 0.6 ± 0.4) x 10-6 and set the limit β(B0→ K0Φγ) < 2.7 x 10-6 at 90% confidence level. The direct CP asymmetry in B+ → K+Φγ is found to be A CP = (-26 ±14 ± 5)%. In each case the uncertainties are statistical and systematic, respectively.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 946450
- Report Number(s):
- SLAC-R-916
TRN: US0901144
- DOE Contract Number:
- AC02-76SF00515
- Resource Type:
- Thesis/Dissertation
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; ASYMMETRY; B MESONS; DECAY; PHYSICS; PROBES; RESONANCE; STANDARD MODEL; STANFORD LINEAR ACCELERATOR CENTER; Experiment-HEP; Experiment-Nucl; HEPEX
Citation Formats
Joseph Marion Tuggle IV. Radiative B Meson Decay as a Probe of Physics Beyond the Standard Model: Time-Dependent CP Violation in B0 → K0S π0 γ and the B → Φ K γ Branching Fraction. United States: N. p., 2009.
Web. doi:10.2172/946450.
Joseph Marion Tuggle IV. Radiative B Meson Decay as a Probe of Physics Beyond the Standard Model: Time-Dependent CP Violation in B0 → K0S π0 γ and the B → Φ K γ Branching Fraction. United States. https://doi.org/10.2172/946450
Joseph Marion Tuggle IV. 2009.
"Radiative B Meson Decay as a Probe of Physics Beyond the Standard Model: Time-Dependent CP Violation in B0 → K0S π0 γ and the B → Φ K γ Branching Fraction". United States. https://doi.org/10.2172/946450. https://www.osti.gov/servlets/purl/946450.
@article{osti_946450,
title = {Radiative B Meson Decay as a Probe of Physics Beyond the Standard Model: Time-Dependent CP Violation in B0 → K0S π0 γ and the B → Φ K γ Branching Fraction},
author = {Joseph Marion Tuggle IV},
abstractNote = {The author presents measurements of radiative B meson decays to the final states Ks0π0γ and KΦγ based on data collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e+e- collider at SLAC. In a data sample of 467 million B$\bar{B}$ pairs, the time-dependent CP asymmetry in B0 → Ks0π0γ decays is measured in two regions of Ks0-π0 invariant mass. In the K* region, 0.8 < m(Ks0π0) < 1.0 GeV/c2, we find SK*γ = -0.03 ± 0.29 ± 0.03 and CK*γ = -0.14 ± 0.16 ± 0.03; in the range 1.1 < m(Ks0π0) < 1.8 GeV/c2, they find SKs0π0γ = -0.78 ± 0.59 ± 0.09 and C Ks0π0γ = -0.36 ± 0.33 ± 0.04. With a sample of 228 million B$\bar{B}$ pairs they measure the branching fraction β(B+ → K+Φγ) = (3.5 ± 0.6 ± 0.4) x 10-6 and set the limit β(B0→ K0Φγ) < 2.7 x 10-6 at 90% confidence level. The direct CP asymmetry in B+ → K+Φγ is found to be A CP = (-26 ±14 ± 5)%. In each case the uncertainties are statistical and systematic, respectively.},
doi = {10.2172/946450},
url = {https://www.osti.gov/biblio/946450},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2009},
month = {Thu Jan 01 00:00:00 EST 2009}
}