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Measurements Of The Ckm Angle Alpha At Babar
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Book Synopsis Measurements Related to CKM Angle Alpha in BABAR. by :
Download or read book Measurements Related to CKM Angle Alpha in BABAR. written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the CKM Angle Alpha at BaBar by : C. Yeche
Download or read book Measurement of the CKM Angle Alpha at BaBar written by C. Yeche and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurements of the CKM Angle Alpha at BaBar by :
Download or read book Measurements of the CKM Angle Alpha at BaBar written by and published by . This book was released on 2012 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the CKM Angles [alpha] and [gamma] at the BABAR Experiment by :
Download or read book Measurement of the CKM Angles [alpha] and [gamma] at the BABAR Experiment written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurement of the CKM Angle Alpha at the BABAR Detector Using B Meson Decays to Rho Final States by : Attila Mihalyi
Download or read book Measurement of the CKM Angle Alpha at the BABAR Detector Using B Meson Decays to Rho Final States written by Attila Mihalyi and published by . This book was released on 2005 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Angle Alpha at BABAR. by :
Download or read book Measurement of the Angle Alpha at BABAR. written by and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Measurements of CKM Angles Beta/phi_1 and Alpha/phi_2 at the Babar and Belle Experiments by :
Download or read book Measurements of CKM Angles Beta/phi_1 and Alpha/phi_2 at the Babar and Belle Experiments written by and published by . This book was released on 2009 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Improved Measurement of the CKM Angle Alpha Using B0 to Rho+rho- Decays by :
Download or read book Improved Measurement of the CKM Angle Alpha Using B0 to Rho+rho- Decays written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results from an analysis of B° ({bar B}°) →??− using 232 million?(4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure the longitudinal polarization fraction f{sub L} = 0.978 ± 0.014(stat){sub -0.029}{sup +0.021}(syst) and the CP-violating parameters S{sub L} = -0.33 ± 0.24(stat){sub -0.14}{sup +0.08}(syst) and C{sub L} = -0.03 ± 0.18(stat) ± 0.09(syst). Using an isospin analysis of B →?? decays we determine the unitarity triangle?. The solution compatible with the Standard Model is? = (100 ± 13){sup o}.
Book Synopsis Measurements of Charmless B Decays Related to Alpha at BaBar by :
Download or read book Measurements of Charmless B Decays Related to Alpha at BaBar written by and published by . This book was released on 2009 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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].
Book Synopsis Measurements of the Angle Alpha(Phi(2)) at BaBar by : S. Emery
Download or read book Measurements of the Angle Alpha(Phi(2)) at BaBar written by S. Emery and published by . This book was released on 2006 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements Related to the CKM Angle Beta/Phi1 from BABAR. by :
Download or read book Measurements Related to the CKM Angle Beta/Phi1 from BABAR. written by and published by . This book was released on 2004 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Updated Measurement of the CKM Angle Alpha Using B0-]rho+rho- Decays by : B. Aubert
Download or read book Updated Measurement of the CKM Angle Alpha Using B0-]rho+rho- Decays written by B. Aubert and published by . This book was released on 2006 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present results from an analysis of B{sup 0} {yields} {rho}{sup +}{rho}{sup -} using 316 fb{sup -1} of {Upsilon}(4S) {yields} B{bar B} decays observed with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. They measure the B{sup 0} {yields} {rho}{sup +}{rho}{sup -} branching fraction, longitudinal polarization fraction f{sub L}, and the CP-violating parameters S{sub long} and C{sub long}: {Beta}(B{sup 0} {yields} {rho}{sup +}{rho}{sup -}) = (23.5 {+-} 2.2(stat) {+-} 4.1(syst)) x 10{sup -6}, f{sub L} = 0.977 {+-} 0.024(stat){sub -0.013}{sup +0.015}(syst), S{sub long} = -0.19 {+-} 0.21(stat){sub -0.07}{sup +0.05}(syst), C{sub long} = -0.07 {+-} 0.15(stat) {+-} 0.06(syst). Using an isospin analysis of B {yields} {rho}{rho} decays they determine the angle {alpha} of the unitarity triangle. One of the two solutions, {alpha} [74,117]{sup o} at 68% CL, is compatible with the standard model. All results presented here are preliminary.
Book Synopsis Measurement of the CKM Angle Alpha with the B-factories by :
Download or read book Measurement of the CKM Angle Alpha with the B-factories written by and published by . This book was released on 2005 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: B-meson decays involving b → u transitions are sensitive to the Unitarity Triangle angle [alpha] (or [phi]2). The B-factories at SLAC and KEK have made significant progress toward the measurement of [alpha] in recent years. This paper summarizes the results of the B-factories' constraints on [alpha].
Book Synopsis Measurements of CKM Angle Beta from BaBar by :
Download or read book Measurements of CKM Angle Beta from BaBar written by and published by . This book was released on 2007 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present recent results of hadronic B meson decays related to the CKM angle beta. The data used were collected by the BABAR detector at the PEP-II asymmetric-energy ee− collider operating at the Upsilon(4S) resonance located at the Stanford Linear Accelerator Center.
Book Synopsis Discrete Symmetries and CP Violation by : Marco Sozzi
Download or read book Discrete Symmetries and CP Violation written by Marco Sozzi and published by Oxford University Press. This book was released on 2008-01-24 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book takes a fresh approach to the teaching of discrete symmetries which are central to fundamental physics: mirror symmetry, matter/anti-matter symmetry, and time reversal. It is self-contained and includes detailed discussions of relevant experiments - conveying some of the fascination and intellectual challenges of experimental physics.
Book Synopsis Fundamental Interactions by : Alan Astbury
Download or read book Fundamental Interactions written by Alan Astbury and published by World Scientific. This book was released on 2008 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume contains the latest results from the field of particle physics. The contributions cover the current status of all the Large Hadron Collider (LHC) experiments, the implications of the LHC for cosmology, and the search for dark matter and nuclear astrophysics. It also includes work on the current status of the future International Linear Collider (ILC).
Book Synopsis CP Violation Results from B Decays at BaBar by :
Download or read book CP Violation Results from B Decays at BaBar written by and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the present paper we review recent experimental results from the BABAR experiment concerning the measurement of the CKM angles. A particular highlight is given to the novel independent determination of the angle [alpha] from B° → a1(1260){sup {+-}}[pi]{sup {-+}} and to the recent full-luminosity updates of several angle [gamma] measurements.