Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Measurements Related to CKM Angle Alpha in BABAR.
Measurements of the CKM Angle Alpha at BaBar
Author: Measurement of the CKM Angle Alpha at BaBar
Author: C. YechePublisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
We present BABAR experiment studies to measure the CKM angle {alpha} of the Unitarity Triangle. The measurements are based on the B meson decays into the two-body state ({pi}{pi}), the quasi two-body state ({rho}{rho}), and the three-body state ({pi}{sup +}{pi}{sup -}{pi}{sup 0}). The results are obtained from data samples of about 230 million {Upsilon}(4S) {yields} B{bar B} decays collected between 1999 and 2004 with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC.
Measurement of the CKM Angles [alpha] and [gamma] at the BABAR Experiment
![Measurement of the CKM Angles [alpha] and [gamma] at the BABAR Experiment PDF](https://books.google.com/books/content/images/frontcover/rCbDDAEACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The primary objective of the BABAR Experiment is to test the Standard Model explanation of CP violation in weak decays by over-constraining the CKM Unitarity Triangle. This includes the measurement of all three angles of the triangle. Although precise measurements of the angle [beta] have been obtained using B decays to charmonium states, the remaining angles, [alpha] and [gamma], pose greater experimental challenges. In this paper, the latest measurements of modes which will constrain [alpha] and [gamma] will be presented, including B[sup 0] --> [rho][sup +][rho][sup -] for [alpha] and a measurement of sin(2[beta] + [gamma]) from the B[sup 0] --> D(*)[sup [+-]][pi][sup [-+]] system.
Measurement of the CKM Angle Alpha at the BABAR Detector Using B Meson Decays to Rho Final States
Author: Attila MihalyiMeasurement of the Angle Alpha at BABAR.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
The authors present recent measurements of the CKM angle [alpha] using data collected by the BABAR detector at the PEP-II asymmetric-energy ee− collider at the SLAC National Accelerator Laboratory, operating at the [Upsilon](4S) resonance. They present constraints on [alpha] from B 2![pi][pi], B 2![rho][rho] and B 2![rho][pi] decays.
Measurements of CKM Angles Beta/phi_1 and Alpha/phi_2 at the Babar and Belle Experiments
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 6
Book Description
We report measurements of the CKM angles?/?1 and?/?2 done by the BABAR and Belle experiments. Both experiments have collected large data samples, corresponding to a total of more than 1 billion of B{bar B} pairs, at the ee− asymmetric-energy colliders PEP-II (SLAC) and KEK-B (KEK), respectively.
Measurements of Charmless B Decays Related to Alpha at BaBar
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
We report recent measurements of the CKM angle [alpha] using data collected by the BABAR detector at the PEP-II asymmetric-energy ee− collider at the SLAC National Accelerator Laboratory. In addition to improved constraints on [alpha] from the decays B{sup {+-}} 2![rho]{sup {+-}}[rho]°, we also present preliminary results of neutral and charged B meson decays to K1(1270)[pi] and K1(1400)[pi] and its impact on the estimate for the CKM angle [alpha] based on time-dependent analysis of CP-violating asymmetries in B° 2!a1(1260){sup {+-}} [pi]{sup {-+}}. Moreover we report the first observation of the decay B 2!a1(1260){sup {+-}}a1(1260){sup {-+}}; this mode can be used, in principle, to provide an independent measurement of [alpha].
Measurements of the Angle Alpha(Phi(2)) at BaBar
Author: S. EmeryMeasurements Related to the CKM Angle Beta/Phi1 from BABAR.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 8
Book Description
We present measurements related to the CKM angle [beta] from BABAR based on 82 or H"15 fb−1 data samples collected at the PEP-II ee− asymmetric B Factory collider. A new method allowing to measure the sign of cos2[beta] with B° 2!J/[psi] ''K*°'' events is explained and related results reported. Recent CP measurements in the penguin dominated modes B° 2![phi]K°, B° 2!K K− K{sub S}°, B° 2![pi]° K{sub S}° and B° 2!f0 (980)K{sub S}° are presented.