Measurements Of Branching Fractions In B 2 Phi K And B 2 Phi Pi And Search For Direct Cp Violation In B Sup 2 Phi K Sup

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Measurements Of Branching Fractions In B 2 Phi K And B 2 Phi Pi And Search For Direct Cp Violation In B Sup 2 Phi K Sup

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Author :
language : en
Publisher:
Release Date : 2003

Measurements Of Branching Fractions In B 2 Phi K And B 2 Phi Pi And Search For Direct Cp Violation In B Sup 2 Phi K Sup written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The authors present measurements of branching fractions in the b 2!s{bar s}s penguin-dominated decays B 2![phi]K and B° 2![phi]K° in a sample of approximately 89 million B{bar B} pairs collected by the BABAR detector at the PEP-II asymmetric-energy B-meson Factory at SLAC. They determine [Beta](B+ 2![phi]K+) = (10.0{sub -0.8}{sup +0.9} ± 0.5) x 10−6 and [Beta](B° 2![phi]K°) = (8.4{sub -1.3}{sup +1.5} ± 0.5) x 10−6. Additionally, they measure the CP-violating charge asymmetry [Alpha]{sub CP}(B{sup ±} 2![phi]K{sup ±}) = 0.04 {+-} 0.09 {+-} 0.01, with a 90% confidence-level interval of [-0.10, 0.18], and set an upper limit on the CKM- and color-suppressed decay B+ 2![phi][pi]+, [Beta](B+ 2![phi][pi]+)

Branching Fractions In B Phi H And Search For Direct Cp Violation In B Phi K

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language : en
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Release Date : 2003

Branching Fractions In B Phi H And Search For Direct Cp Violation In B Phi K written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The authors present preliminary measurements of branching fractions of the b 2!s{bar s}s penguin-dominated decays B{sup ±} 2![phi]K{sup ±} and B° 2![phi]K° in a sample of approximately 89 million B{bar B} pairs collected by the BABAR detector at the PEP-II asymmetric-energy B-meson Factor at SLAC. They determine [Beta](B{sup ±} 2![phi]K{sup ±}) = (10.0{sub -0.8}{sup +0.9}(stat.) {+-} 0.5(syst.)) x 10−6 and [Beta](B° 2![phi]K°) = (7.6{sub -1.2}{sup +1.3}(stat.) {+-} 0.5(syst.)) x 10−6. Additionally, they measure the charge asymmetry [Alpha]{sub CP}(B{sup {+-}} 2![phi]K{sup {+-}}) = 0.039 {+-} 0.086(stat.) {+-} 0.011(syst.) and set an upper limit on the CKM- and color-suppressed decay B{sup {+-}} 2![phi][pi]{sup {+-}}, [Beta](B{sup {+-}} 2![phi][pi]{sup {+-}})

Measurements Of Branching Fractions In B Yields Phi K And B Yields Phi Pi And Search For Direct Cp Violation In B Sup Yields Phi K Sup

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language : en
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Release Date : 2003

Measurements Of Branching Fractions In B Yields Phi K And B Yields Phi Pi And Search For Direct Cp Violation In B Sup Yields Phi K Sup written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The authors present measurements of branching fractions in the b[yields] s[bar s]s penguin-dominated decays B[sup+][yields][phi]K[sup+] and B[sup 0][yields][phi]K[sup 0] in a sample of approximately 89 million B[bar B] pairs collected by the BABAR detector at the PEP-II asymmetric-energy B-meson Factory at SLAC. They determine[Beta](B[sup+][yields][phi]K[sup+])= (10.0[sub -0.8][sup+0.9][+-] 0.5) x 10[sup -6] and[Beta](B[sup 0][yields][phi]K[sup 0])= (8.4[sub -1.3][sup+1.5][+-] 0.5) x 10[sup -6]. Additionally, they measure the CP-violating charge asymmetry[Alpha][sub CP](B[sup[+-]][yields][phi]K[sup[+-]])= 0.04[+-] 0.09[+-] 0.01, with a 90% confidence-level interval of[-0.10, 0.18], and set an upper limit on the CKM- and color-suppressed decay B[sup+][yields][phi][pi][sup+], [Beta](B[sup+][yields][phi][pi][sup+])

Dissertation Abstracts International

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language : en
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Release Date : 1986

Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Dissertations, Academic categories.

Inis Atomindex

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language : en
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Release Date : 1986

Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Nuclear energy categories.

Measurements Of Branching Fraction Polarization And Direct Cp Violating Asymmetry In B Sup K Sup 0 Rho Sup Decays

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language : en
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Release Date : 2004

Measurements Of Branching Fraction Polarization And Direct Cp Violating Asymmetry In B Sup K Sup 0 Rho Sup Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The purpose of this analysis is the simultaneous measurement of the branching fraction, the longitudinal-polarization component, and the direct-CP-violating charge asymmetry for the B --> vector-vector decay mode B[sup +] --> K*[sup 0][rho][sup +], which has previously not been seen experimentally. The measurement of the polarization of the penguin decay is of special interest. There is no tree contribution to the decay amplitude and only a very small annihilation process. The polarization of the B[sup +] --> K*[sup 0][rho][sup +] decay mode can be compared to that already measured for the similar penguin decay B --> K*[phi].

Study Of B Sup 2 J Psi Pi Sup And B Sup 2 J Psi K Sup Decays

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language : en
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Release Date : 2004

Study Of B Sup 2 J Psi Pi Sup And B Sup 2 J Psi K Sup Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The authors study B{sup ±} → J/[psi] [pi]{sup ±} and B{sup ±} → J/[psi] K{sup ±} decays in a sample of about 89 million B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric B-factory at SLAC. They observe a signal of 244 ± 20 B{sup ±} → J/[psi] [pi]{sup ±} events and determine the ratio [Beta](B{sup {+-}} → J/[psi] [pi]{sup {+-}})/[Beta](B{sup {+-}} → J/[psi] K{sup {+-}}) to be [5.37 {+-} 0.45(stat.) {+-} 0.11(syst.)]%. The charge asymmetries for the B{sup {+-}} → J/[psi] [pi]{sup {+-}} and B{sup {+-}} → J/[psi] K{sup {+-}} decays are determined to be [Alpha]{sub {pi}} = 0.123 {+-} 0.085(stat.) {+-} 0.004(syst.) and [Alpha]{sub K} = 0.030 {+-} 0.015(stat.) {+-} 0.006(syst.), respectively.

2

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Author :
language : en
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Release Date : 1966

2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with categories.

Search For Direct Cp Violation In Quasi 2 Body Charmless B Decays

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language : en
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Release Date : 2004

Search For Direct Cp Violation In Quasi 2 Body Charmless B Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

We have searched for direct CP violation in quasi-two-body charmless B decays observed in a sample of about 45 million B mesons collected with the BABAR detector at the PEP-II collider. We measure the following charge asymmetries in decay: [Alpha][sub CP](B[sup [+-]] [yields] [eta][prime]K[sup [+-]]) = -0.11 [+-] 0.02, [Alpha][sub CP](B[sup [+-]] [yields] [omega][pi][sup [+-]]) = 0.01[sub -0.31][sup +0.29] [+-] 0.03, [Alpha][sub CP](B[sup [+-]] [yields] [phi]K[sup [+-]]) = -0.05 [+-] 0.20 [+-] 0.03, [Alpha][sub CP](B[sup [+-]] [yields] [phi]K*[sup [+-]]) = -0.43[sub -0.30][sup +0.36] [+-] 0.06, and [Alpha][sub CP](B[sup 0]/[bar B][sup 0] [yields] [phi]K*[sup 0]/[bar K]*[sup 0]) = 0.00 [+-] 0.27 [+-] 0.03.

Measurement Of Branching Fractions And Cp Violating Asymmetries In B Rho H

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language : en
Publisher:
Release Date : 2003

Measurement Of Branching Fractions And Cp Violating Asymmetries In B Rho H written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

We present measurements of branching fractions and CP-violating asymmetries in B[sup 0][yields][rho][sup[+-]][pi][sup[-+]] and B[sup 0][yields][rho][sup -]K[sup+] decays. The results are obtained from a data sample of 88.9 x 10[sup 6][Upsilon](4S)[yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-dependent maximum likelihood fit we measure the charge-averaged branching fractions[Beta](B[sup 0][yields][rho][sup[+-]][pi][sup[-+]])= (22.6[+-] 1.8 (stat)[+-] 2.2 (syst)) x 10[sup -6] and[Beta](B[sup 0][yields][rho][sup -]K[sup+])= (7.3[sub -1.2][sup+1.3][+-] 1.3) x 10[sup -6]; and the CP-violating charge asymmetries A[sub CP][sup[rho][pi]]= -0.18[+-] 0.08[+-] 0.03 and A[sub CP][sup[rho]K]= 0.28[+-] 0.17[+-] 0.08; the direct CP violation parameter C[sub[rho][pi]]= 0.36[+-] 0.18[+-] 0.04 and the mixing-induced CP violation parameter S[sub[rho][pi]]= 0.19[+-] 0.24[+-] 0.03; and the dilution parameters[Delta]C[sub[rho][pi]]= 0.28[sub -0.19][sup+0.18][+-] 0.04 and[Delta]S[sub[rho][pi]]= 0.15[+-] 0.25[+-] 0.03.