SLAC's Asymmetric B Factory Will Study CP Violation

Physics Today ◽  
1999 ◽  
Vol 52 (1) ◽  
pp. 22-22 ◽  
Author(s):  
Bertram Schwarzchild
Keyword(s):  
Cp Violation ◽  
B Factory

scholarly journals Exploring CP-Violation Through B Decays

2003 ◽  
Vol 18 (21) ◽  
pp. 1413-1433 ◽  
Author(s):  
Robert Fleischer
Keyword(s):  
Cp Violation ◽  
Standard Model ◽  
B Meson ◽  
Model Description ◽  
B Decays ◽  
Unitarity Triangle ◽  
The Standard Model ◽  
B Factory ◽  
Meson System

The B-meson system provides many strategies to perform stringent tests of the Standard-Model description of CP-violation. In this brief review, we discuss implications of the currently available B-factory data on the angles α, β and γ of the unitarity triangle, emphasize the importance of Bsstudies at hadronic B experiments, and discuss new, theoretically clean strategies to determine γ.

Detectors for collider experiments at the luminosity frontier

2015 ◽  
Vol 30 (14) ◽  
pp. 1530029
Author(s):  
Peter Križan
Keyword(s):  
Cp Violation ◽  
Standard Model ◽  
Transition Matrix ◽  
Data Acquisition System ◽  
New Physics ◽  
Accelerator Complex ◽  
The Standard Model ◽  
Belle Ii ◽  
B Factory ◽  
Event Rates

In experiments at the luminosity frontier, New Physics is being searched for in precision studies of rare processes. The most important example of such an effort is experiments at B factories and super B factories. While B factories have fully established the CKM quark transition matrix as the only source of CP violation in the Standard Model, the next generation of B factories, the so-called super B factories, will look for departures from the Standard Model. To collect a 50 times larger data sample, needed to reach the required sensitivity, a substantial B factory upgrade is being carried out. The SuperKEKB accelerator complex is designed for an increase in luminosity by a factor of 40. The upgraded Belle II spectrometer is being constructed to operate at considerably higher event rates, as well as higher backgrounds, accompanied by an increase in occupancy and radiation damage. Higher event rates also require substantial modifications in the trigger scheme, data acquisition system and computing. The paper discusses the detectors at B factories, the motivation for SuperKEKB/Belle II, the super B factory at KEK, as well as the requirements for the new accelerator and for the new detector. The present status of the project will be presented together with plans for the future. We will also discuss its competition, the LHCb experiment at the LHC.

Sensitivity to the CP-violation parameter φ2 at a B factory

1995 ◽  
Vol 366 (1) ◽  
pp. 85-95
Author(s):  
Mie Aoki ◽  
Koji Watanabe ◽  
Yasushi Watanabe ◽  
Ryosuke Itoh ◽  
Hitoshi Ozaki
Keyword(s):  
Cp Violation ◽  
B Factory

CP VIOLATION AT BABAR

2008 ◽  
Vol 23 (21) ◽  
pp. 3273-3276
Author(s):  
◽  
CHRISTOPHE YÈCHE
Keyword(s):  
Cp Violation ◽  
Unitarity Triangle ◽  
B Factory ◽  
Babar Detector

We report recent measurements of the three CKM angles of the Unitarity Triangle using about 383 millions [Formula: see text] pairs collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC.

CP VIOLATION IN NEUTRAL B DECAYS ON THE ϒ (4S) WITH SYMMETRIC ENERGIES

1995 ◽  
Vol 10 (02) ◽  
pp. 165-172 ◽  
Author(s):  
KARL BERKELMAN
Keyword(s):  
Cp Violation ◽  
B Meson ◽  
Matrix Elements ◽  
B Decays ◽  
Unitarity Triangle ◽  
Statistical Estimator ◽  
Interaction Point ◽  
B Meson Decays ◽  
B Factory ◽  
Neutral B Decays

The favored tests of CP violation in B meson decays give sin 2α and sin 2β, where α and β are angles in the unitarity triangle relating the Kobayashi–Maskawa matrix elements. In the classic B Factory experiment sin 2α or sin 2β is obtained by observing a time dependent CP violating asymmetry in the decay of tagged B0, [Formula: see text] pairs, mediated by [Formula: see text] mixing. The same measurement can be performed at a symmetric energy collider operating at the ϒ (4S) resonance, given sufficient luminosity and vertex resolution. That is, provided the vertical spread of the beam at the interaction point is small, for two-event subclasses the centroid separation in measurements of the observed midpoint between the heights of the two decay vertices is a good statistical estimator for the CP violation parameter sin 2α or sin 2β. With a typical detector the number of events needed is about three times what an asymmetric B Factory would require for the same accuracy.

Observing CP violation at a symmetric B factory

1995 ◽  
Author(s):  
Scott R. Menary for the ◽  
Keyword(s):  
Cp Violation ◽  
B Factory

CP Violation

2009 ◽  
Author(s):  
I. I. Bigi ◽  
A. I. Sanda
Keyword(s):  
Cp Violation
Sign in / Sign up

Export Citation Format

Share Document