BABAR Results on CP Violation in the B[sup 0] System

BABAR Results on CP Violation in the B[sup 0] System PDF Author:
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ISBN:
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Languages : en
Pages :

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Book Description
The BABAR detector, operating at the SLAC PEP-II asymmetric B Factory, has collected a sample of 32 million B[bar B] pairs by May 2001, at energies close to the[Upsilon](4S) resonance. The measurement of sin2[beta]= 0.59[+-] 0.14(stat)[+-] 0.05(syst), performed with a study of time-dependent CP-violating asymmetries in neutral B decays, establishes CP violation at the 4[sigma] level. In addition, preliminary results on CP-violating asymmetries in the decay channel B[sup 0][yields][pi][sup+][pi][sup -] are presented.

BABAR Results on CP Violation in the B[sup 0] System

BABAR Results on CP Violation in the B[sup 0] System PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The BABAR detector, operating at the SLAC PEP-II asymmetric B Factory, has collected a sample of 32 million B[bar B] pairs by May 2001, at energies close to the[Upsilon](4S) resonance. The measurement of sin2[beta]= 0.59[+-] 0.14(stat)[+-] 0.05(syst), performed with a study of time-dependent CP-violating asymmetries in neutral B decays, establishes CP violation at the 4[sigma] level. In addition, preliminary results on CP-violating asymmetries in the decay channel B[sup 0][yields][pi][sup+][pi][sup -] are presented.

BABAR Results on CP Violation in the B° System

BABAR Results on CP Violation in the B° System PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 9

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Book Description
The BABAR detector, operating at the SLAC PEP-II asymmetric B Factory, has collected a sample of 32 million B{bar B} pairs by May 2001, at energies close to the?(4S) resonance. The measurement of sin2? = 0.59 ± 0.14(stat) ± 0.05(syst), performed with a study of time-dependent CP-violating asymmetries in neutral B decays, establishes CP violation at the 4? level. In addition, preliminary results on CP-violating asymmetries in the decay channel B° →??− are presented.

Recent Results on CP Violation From BABAR.

Recent Results on CP Violation From BABAR. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5

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Book Description
The BABAR experiment at the PEP-II B factory at SLAC has collected over 37 106 BB pairs in the years 2000 and 2001. Based on this data sample, various studies of CP violation in the B system are presented, including the first observation of CP violation outside the kaon system and a measurement of the CKM parameter sin(2[beta]) = 0.59 ± 0.14(stat) ± 0.05(syst). Studies on direct CP violation and CP violation in mixing are also presented.

B Physics And Cp Violation: Bcp4 - Proceedings Of The International Workshop

B Physics And Cp Violation: Bcp4 - Proceedings Of The International Workshop PDF Author: T Ohshima
Publisher: World Scientific
ISBN: 9814490776
Category : Science
Languages : en
Pages : 392

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Book Description
This book offers the first strong evidence of the existence of CP violation in neutral B decays extracted from sophisticated B factories in the US and Japan. It also holds out the expectation of rare B decays and D, K physics in the near future. In addition, new physics beyond the Standard Model is described. Both experimental and theoretical points of view are given.

Plan of Bristol

Plan of Bristol PDF Author:
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Category :
Languages : en
Pages :

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Book Description


CP Violation: From Quarks to Leptons

CP Violation: From Quarks to Leptons PDF Author: M. Giorgi
Publisher: IOS Press
ISBN: 1614990190
Category : Science
Languages : en
Pages : 613

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Book Description
For a long time after the discovery in 1964, by Christenson, Cronin, Fitch and Turlay, that the long-lived neutral kaon decays both into three and into two pions, which has since been taken as proof of CP violation, successive new and more precise experiments confirmed the original evidence and provided results compatible with a phenomenological description confining the CP violation to the mixing between neutral kaons and antikaons. However the Standard Model, with three generations of quarks, linking as it does CP violation to the presence of a single non trivial phase in the Cabibbo-Kobayashi-Maskawa quark mixing matrix, implies that if CP violation exists at all, then it is a general property of weak interactions, appearing in transitions were amplitudes involving all three quark families interfere with each other, producing effects with a magnitude related to that of the CKM coefficients. This fact has stimulated an impressive amount of theoretical work leading in many cases to precise predictions. This publication reviews the field, from both the theoretical and experimental point of view, while planning for the forthcoming experimentation at LHC and considering possible new facilities for kaon, B meson and neutrino physics. Abstracted in Inspec

B Factories

B Factories PDF Author: Boštjan Golob
Publisher: Morgan & Claypool Publishers
ISBN: 1643272527
Category : Science
Languages : en
Pages : 120

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Book Description
B Factories are particle colliders at which specific subatomic particles - B mesons - are produced abundantly. The purpose is to study the properties of their decays in great detail in order to shed light on a mystery of eminently larger scale: why do we live in a universe composed of anti-matter? This book introduces readers to the physics laws of the CP asymmetry, touching on experimental requirements needed to perform such measurements at the subatomic level, and illustrating the main findings of the contemporary B Factories.

Cpt And Lorentz Symmetry, Proceedings Of The 2nd Meeting

Cpt And Lorentz Symmetry, Proceedings Of The 2nd Meeting PDF Author: V Alan Kostelecky
Publisher: World Scientific
ISBN: 9814489522
Category : Science
Languages : en
Pages : 367

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Book Description
Contents:CPT, SSB, Ether, and All That (Y Nambu)Sub-Millimeter Tests of the Gravitational Inverse Square Law (E G Adelberger)Test of CPT and Lorentz Invariance from Muonium Spectroscopy (D Kawall et al.)Study of CPT Violation at BELLE (Y Sakai)Tests of CPT and Lorentz Symmetry Using Hydrogen and Noble-Gas Masers (R L Walsworth)CPT and Lorentz Tests with Clocks in Space (N E Russell)CPT Results from KTeV (H Nguyen)Physical Instances of Noncommuting Coordinates (R Jackiw)Torsion Balance Tests of Spin Coupled Forces (B R Heckel)Prospects for Symmetry Breaking in String Theory (R Potting)Cold Antihydrogen and CPT (G Gabrielse et al.)and other papers Readership: Theoretical and experimental physicists with an interest in relativity and space-time symmetries. Keywords:

New Results From BABAR.

New Results From BABAR. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The BABAR experiment at the PEP-II asymmetric B factory at SLAC has collected a large sample of data at the[Upsilon](4S) resonance. I will summarize BABAR's new results on CP violation, B mixing and lifetimes, and a selection of rare B decays. In particular, I will describe in detail the measurement of the CP violating parameter sin2[beta]; BABAR has observed CP violation in the neutral B system finding sin2[beta]= 0.59[+-] 0.14[+-] 0.05.

Observation of CP Violation in the B[sup 0] Meson System

Observation of CP Violation in the B[sup 0] Meson System PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
We present an updated measurement of time-dependent CP-violating asymmetries in neutral B decays with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. This result uses an additional sample of[Upsilon](4S) decays collected in 2001, bringing the data available to 32 million B[bar B] pairs. We select events in which one neutral B meson is fully reconstructed in final state containing charmonium and the flavor of the other neutral B meson is determined from its decay products. The amplitude of the CP-violating asymmetry, which in the Standard Model is proportional to sin2[beta], is derived from the decay time distributions in such events. The result sin2[beta]= 0.59[+-] 0.14 (stat)[+-] 0.05 (syst) establishes CP violation in the B[sup 0] meson system. We also determine[lambda]= 0.93[+-] 0.09 (stat)[+-] 0.03 (syst), consistent with no direct CP violation.