Measurement of the Branching Fraction for the Decay B°--]D{sup *+}D{sup *-}

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Book Synopsis Measurement of the Branching Fraction for the Decay B°--]D{sup *+}D{sup *-} by :

Download or read book Measurement of the Branching Fraction for the Decay B°--]D{sup *+}D{sup *-} written by and published by . This book was released on 2001 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decays of the type B 2!D{sup (*)} {bar D}(*) can be used to provide a measurement of the parameter sin2[beta] of the Unitarity Triangle that is complementary to the measurement derived from the mode B° 2!K{sub S}°. In this document we report a measurement of the branching fraction for the decay B° 2!D*D*− with the BABAR detector. With data corresponding to an integrated luminosity of 20.7 fb−1 collected at the [Upsilon](4S) resonance during 1999-2000, we have reconstructed 38 candidate signal events in the mode B° 2!D*D*− with an estimated background of 6.2 ± 0.5 events. From these events, we determine the branching fraction to be [Beta](B° 2!D*+D*−) = (8.0 ± 1.6(stat) ± 1.2(syst)) x 10−4 (preliminary). The measured fraction of the component with odd CP parity is 0.27± 0.17(stat) ± 0.02(syst).

Measurement of the Branching Fraction for B- --] D0 K*-

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Book Synopsis Measurement of the Branching Fraction for B- --] D0 K*- by :

Download or read book Measurement of the Branching Fraction for B- --] D0 K*- written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a measurement of the branching fraction for the decay B[sup -] [yields] D[sup 0]K*[sup -] using a sample of approximately 86 million B[bar B] pairs collected by the BABAR detector from e[sup +]e[sup -] collisions near the [Upsilon](4S) resonance. The D[sup 0] is detected through its decays to K[sup -] [pi][sup +], K[sup -][pi][sup +][pi][sup 0] and K[sup -] [pi][sup +][pi][sup -][pi][sup +], and the K*[sup -] through its decay to K[sub S][sup 0] [pi][sup -]. They measure the branching fraction to be [Beta](B[sup -] [yields] D[sup 0]K*[sup -]) = (6.3 [+-] 0.7(stat.) [+-] 0.5(syst.)) x 10[sup -4].

Measurement of the Branching Fraction and Polarization for the Decay B[sup -][yields] D*[sup 0] K*[sup -].

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Book Synopsis Measurement of the Branching Fraction and Polarization for the Decay B[sup -][yields] D*[sup 0] K*[sup -]. by :

Download or read book Measurement of the Branching Fraction and Polarization for the Decay B[sup -][yields] D*[sup 0] K*[sup -]. written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a study of the decay B[sup -][yields] D*[sup 0] K*[sup -] based on a sample of 86 million[Upsilon](4S)[yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factor at SLAC. The authors measure the branching fraction[Beta](B[sup -][yields] D*[sup 0] K*[sup -])= (8.3[+-] 1.1(stat)[+-] 1.0(syst)) x 10[sup -4], and the fraction of longitudinal polarization in this decay to be[Lambda][sub L]/[Lambda]= 0.86[+-] 0.06(stat)[+-] 0.03(syst).

Measurement of the Branching Fraction for the Decay B[sup 0]--]D[sup*+]D[sup*-].

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Book Synopsis Measurement of the Branching Fraction for the Decay B[sup 0]--]D[sup*+]D[sup*-]. by :

Download or read book Measurement of the Branching Fraction for the Decay B[sup 0]--]D[sup*+]D[sup*-]. written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Decays of the type B[yields] D[sup (*)][bar D](*) can be used to provide a measurement of the parameter sin2[beta] of the Unitarity Triangle that is complementary to the measurement derived from the mode B[sup 0][yields]/K[sub S][sup 0]. In this document we report a measurement of the branching fraction for the decay B[sup 0][yields] D*[sup+]D*[sup -] with the BABAR detector. With data corresponding to an integrated luminosity of 20.7 fb[sup -1] collected at the[Upsilon](4S) resonance during 1999-2000, we have reconstructed 38 candidate signal events in the mode B[sup 0][yields] D*[sup+]D*[sup -] with an estimated background of 6.2[+-] 0.5 events. From these events, we determine the branching fraction to be[Beta](B[sup 0][yields] D*[sup+]D*[sup -])= (8.0[+-] 1.6(stat)[+-] 1.2(syst)) x 10[sup -4] (preliminary). The measured fraction of the component with odd CP parity is 0.27[+-] 0.17(stat)[+-] 0.02(syst).

MEASUREMENT OF THE BRANCHING FRACTIONS FOR THE DECAYS B[sup 0]--]D*[sup -] P[bar P][pi][sup +], B[sup 0]--]D[sup -]p[bar P][pi][sup +], B0--]D*[sup 0] P[bar P] AND B[sup 0]--]D[sup 0] P[bar P].

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Book Synopsis MEASUREMENT OF THE BRANCHING FRACTIONS FOR THE DECAYS B[sup 0]--]D*[sup -] P[bar P][pi][sup +], B[sup 0]--]D[sup -]p[bar P][pi][sup +], B0--]D*[sup 0] P[bar P] AND B[sup 0]--]D[sup 0] P[bar P]. by :

Download or read book MEASUREMENT OF THE BRANCHING FRACTIONS FOR THE DECAYS B[sup 0]--]D*[sup -] P[bar P][pi][sup +], B[sup 0]--]D[sup -]p[bar P][pi][sup +], B0--]D*[sup 0] P[bar P] AND B[sup 0]--]D[sup 0] P[bar P]. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The B[sup 0] meson decay modes B[sup 0] --> D*[sup -]p[bar p][pi][sup +], D[sup -]p[bar p][sup +], [bar D]*[sup 0]p[bar p], and B[sup 0] --> [bar D][sup 0]p[bar p] are studied in a sample of 124 x 10[sup 6] B[bar B] pairs collected with the BABAR detector at the PEP-II collider. The decay of B[sup 0] --> D[sup -]p[bar p][pi][sup +] is observed for the first time, with a measured branching fraction B(B[sup 0] --> D[sup -]p[bar p][pi][sup +]) = (3.80 [+-] 0.35 [+-] 0.46) x 10[sup -4]. The following branching fractions are also determined: B(B[sup 0] --> D*[sup -]p[bar p][pi][sup +]) = (5.61 [+-] 0.59 [+-] 0.73) x 10[sup -4], B(B[sup 0] --> [bar D]*[sup 0] p[bar p]) = (0.67 [+-] 0.21 [+-] 0.09) x 10[sup -4], and B(B[sup 0] --> [bar D][sup 0]p[bar p]) = (1.24 [+-] 0.14 [+-] 0.12) x 10[sup -4]. In each decay mode the invariant mass spectra of the charmed mesons and the baryons are compared with a pure phase-space hypothesis in order to gain insight into the B meson decay dynamics. In particular, the Dalitz plots of [bar D]*[sup 0]p versus [bar D]*[sup 0][bar p] for B[sup 0] --> [bar D]*[sup 0]p[bar p] and of [bar D][sup 0]p versus [bar D][sup 0][bar p] for B[sup 0] --> [bar D][sup 0]p[bar p] are presented. All results are preliminary.

Measurement of the Branching Fraction and CP Content for the Decay B[sup 0][yields] D*+D*[sup -].

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Book Synopsis Measurement of the Branching Fraction and CP Content for the Decay B[sup 0][yields] D*+D*[sup -]. by :

Download or read book Measurement of the Branching Fraction and CP Content for the Decay B[sup 0][yields] D*+D*[sup -]. written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a measurement of the branching fraction of the decay B[sup 0][yields] D*[sup+]D*[sup -1] and of the CP-odd component of its final state using the BABAR detector. With data corresponding to an integrated luminosity of 20.4 fb[sup -1] collected at the[Upsilon](4S) resonance during 1999-2000, we have reconstructed 38 candidate signal events in the mode B[sup 0][yields] D*[sup+]D*[sup -1] with an estimated background of 6.2[+-] 0.5 events. From these events, we determine the branching fraction to be[Beta](B[sup 0][yields] D*[sup+]D*[sup -1])= (8.3[+-] 1.6(stat)[+-] 1.2(syst)) x 10[sup -4]. The measured CP-odd fraction of the final state is 0.22[+-] 0.18(stat)[+-] 0.03(syst).

Recueil factice d'articles de presse concernant Henriette Berthias

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Book Synopsis Recueil factice d'articles de presse concernant Henriette Berthias by :

Download or read book Recueil factice d'articles de presse concernant Henriette Berthias written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Branching Fraction Measurements of B --] Eta C K Decays

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Book Synopsis Branching Fraction Measurements of B --] Eta C K Decays by :

Download or read book Branching Fraction Measurements of B --] Eta C K Decays written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the decays B[sup +] [yields] [eta][sub c]K[sup +] and B[sup 0] [yields] [eta][sub c]K[sup 0], where the [eta][sub c] is reconstructed in the K[sub S][sup 0] K[sup [+-]] [pi][sup [-+]] and K[sup +]K[sup -] [pi][sup 0] decay modes. Results are based on a sample of 86 million B[bar B] pairs collected with the BABAR detector at the SLAC e[sup +]e[sup -] B Factory. We measure the branching fractions [Beta](B[sup +] [yields] [eta][sub c]K[sup +]) = (1.34 [+-] 0.09 [+-] 0.13 [+-] 0.41) x 10[sup -3] and [Beta](B[sup 0] [yields] [eta][sub c]K[sup 0]) = (1.18 [+-] 0.16 [+-] 0.13 [+-] 0.37) x 10[sup -3], where the first error is statistical, the second is systematic, and the third reflects the [eta][sub c] branching fraction uncertainty. In addition, we search for B [yields] [eta][sub c]K events with [eta][sub c] [yields] 2(K[sup +]K[sup -]) and [eta][sub c] [yields] [phi][phi] and determine the [eta][sub c] decay branching fraction ratios [Beta]([eta][sub c] [yields] 2(K[sup +]K[sup -]))/[Beta]([eta][sub c] [yields] K[bar K][pi]) = (2.3 [+-] 0.7 [+-] 0.6) x 10[sup -2] and [Beta]([eta][sub c] [yields] [phi][phi])/[Beta]([eta][sub c] [yields] K[bar K][pi]) = (5.5 [+-] 1.4 [+-] 0.5) x 10[sup -2].

Measurement of the Branching Fraction for B+- -] Chic0 K+-

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Book Synopsis Measurement of the Branching Fraction for B+- -] Chic0 K+- by :

Download or read book Measurement of the Branching Fraction for B+- -] Chic0 K+- written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the branching fraction of the decay B[sup [+-]] [yields] [chi][sub c0]K[sup [+-]] from a sample of 89 million B[bar B] pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The [chi][sub c0] meson is reconstructed through its two-body decays to [pi][sup +][pi][sup -] and K[sup +]K[sup -]. The authors measure [Beta](B[sup [+-]] [yields] [chi][sub c0]K[sup [+-]]) x [Beta]([chi][sub c0] [yields] [pi][sup +][pi][sup -]) = (1.32 [sub -0.27][sup +0.28](stat) [+-] 0.09(syst)) x 10[sup -6] and [Beta](B[sup [+-]] [yields] [chi][sub c0]K[sup [+-]]) x [Beta]([chi][sub c0] [yields] K[sup +]K[sup -]) = (1.49[sub -0.34][sup +0.36](stat) [+-] 0.11(syst)) x 10[sup -6]. Using the known values for the [chi][sub c0] decays branching fractions, they combine these results to obtain [Beta](B[sup [+-]] [yields] [chi][sub c0] K[sup [+-]]) = (2.7 [+-] 0.7) x 10[sup -4].

Branching Fraction Measurement of B0 to D(*)-pi+and B- to D(*)0pi+ and Isospin Analyses of B to D(*)pi Decays

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Total Pages : 8 pages
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Book Synopsis Branching Fraction Measurement of B0 to D(*)-pi+and B- to D(*)0pi+ and Isospin Analyses of B to D(*)pi Decays by : B. Aubert

Download or read book Branching Fraction Measurement of B0 to D(*)-pi+and B- to D(*)0pi+ and Isospin Analyses of B to D(*)pi Decays written by B. Aubert and published by . This book was released on 2006 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using 65 million {Upsilon}(4S) {yields} B{bar B} events collected with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring at the Stanford Linear Accelerator Center, they measure the color-favored branching fractions {Beta}({bar B}{sup 0} {yields} D{sup +}{pi}{sup -}) = (2.63 {+-} 0.05 {+-} 0.22) x 10{sup -3}, {Beta}({bar B}{sup 0} {yields} D*{sup +}{pi}{sup -}) = (2.79 {+-} 0.08 {+-} 0.18) x 10{sup -3}, {Beta}(B{sup -} {yields} D{sup 0}{pi}{sup -}) = (4.90 {+-} 0.07 {+-} 0.23) x 10{sup -3} and {Beta}(B{sup -} {yields} D*{sup 0} {pi}{sup -}) = (5.52 {+-} 0.17 {+-} 0.43) x 10{sup -3}, where the first error is statistical and the second is systematic. With these results and the current world average for the branching fraction for the color-suppressed decay {bar B}{sup 0} {yields} D{sup (*)0}{pi}{sup 0}, the cosines of the strong phase difference {delta} between the I = 1/2 and I = 3/2 isospin amplitudes are determined to be cos{sigma} = 0.860{sub -0.006-0.028}{sup +0.007+0.029} for the {bar B} {yields} D{pi} process and cos{sigma} = 0.917{sub -0.016-0.051}{sup +0.018+0.059} for the {bar B} {yields} D*{pi} process. The results for cos{delta} suggest that final-state interactions are presented in the D{pi} system.

MEASUREMENT OF THE BRANCHING FRACTIONS FOR INCLUSIVE B[sup -] AND [bar B][sup 0] DECAYS TO FLAVOR-TAGGED D, D[sub S] AND LAMBDA[sub C].

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Book Synopsis MEASUREMENT OF THE BRANCHING FRACTIONS FOR INCLUSIVE B[sup -] AND [bar B][sup 0] DECAYS TO FLAVOR-TAGGED D, D[sub S] AND LAMBDA[sub C]. by :

Download or read book MEASUREMENT OF THE BRANCHING FRACTIONS FOR INCLUSIVE B[sup -] AND [bar B][sup 0] DECAYS TO FLAVOR-TAGGED D, D[sub S] AND LAMBDA[sub C]. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report on the inclusive branching fractions of B[sup -] and of [bar B][sup 0] mesons decaying to D[sup 0]X, [bar D][sup 0]X, D[sup +]X, D[sup -]X, D[sub s][sup +]X, D[sub s][sup -]X, [Lambda][sub c][sup +]X, [bar [Lambda]][sub c][sup -]X, based on a sample of 88.9 million B[bar B] events recorded with the BABAR detector at the [Upsilon](4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charmed particle in the rest of the event. The authors measure the number of charmed and of anit-charmed particles per B decay and derive the total charm yield per B[sup -] decay, n[sub c][sup -] = 1.313 [+-] 0.037 [+-] 0.037 [+-] 0.062[sub -0.043][sup +0.063], and per [bar B][sup 0] decay, n[sub c][sup 0] = 1.276 [+-] 0.062 [+-] 0.058[sub -0.046][sup +0.066] where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties.

Measurement of Neutral B Decay Branching Fractions to K[sub S][sup 0][pi][sup +][pi][sup -] Final States

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Book Synopsis Measurement of Neutral B Decay Branching Fractions to K[sub S][sup 0][pi][sup +][pi][sup -] Final States by :

Download or read book Measurement of Neutral B Decay Branching Fractions to K[sub S][sup 0][pi][sup +][pi][sup -] Final States written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The branching fractions for B[sup 0] --> K[sup 0][pi][sup +][pi][sup -], B[sup 0] --> K*[sup +][pi][sup -] and B[sup 0] --> D[sup -]( --> K[sub s][sup 0][pi][sup -])[pi][sup +] decaying to a K[sub s][sup 0][pi][sup +][pi][sup -] state have been measured and agree with previous measurements. The direct CP violating parameter A[sub K*[pi]] was measured for the decay B[sup 0] --> K*[sup +][pi][sup -] and is in agreement with the CLEO measurement, with no evidence of CP violation with the statistics used. Using larger datasets, one can extract amplitudes and relative phases of the resonant contributions to the Dalitz plot, with the possibility to observe new B-meson decays.

Measurement of the Branching Fraction of B0 Meson Decay to A_1^+(1260) Pi-

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Total Pages : 14 pages
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Book Synopsis Measurement of the Branching Fraction of B0 Meson Decay to A_1^+(1260) Pi- by : J. C. Chen

Download or read book Measurement of the Branching Fraction of B0 Meson Decay to A_1^+(1260) Pi- written by J. C. Chen and published by . This book was released on 2005 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary measurement of the branching fraction of the B meson decay B{sup 0} {yields} a{sub 1}{sup +}(1260){pi}{sup -}with a{sub 1}{sup +}(1260) {yields} {pi}{sup +}{pi}{sup +}{pi}{sup -}. The data sample corresponds to 218 x 10{sup 6} B{bar B} pairs produced in e{sup +}e{sup -} annihilation through the {Upsilon}(4S) resonance. We find the branching fraction (40.2 {+-} 3.9 {+-} 3.9) x 10{sup -6}, where the first error quoted is statistical and the second is systematic. The fitted values of the a{sub 1}(1260) parameters are m{sub a{sub 1}} = 1.22 {+-} 0.02 GeV/c{sup 2} and {Lambda}{sub a{sub 1}} = 0.423 {+-} 0.050 GeV/c{sup 2}.

Cemeteries, in Union County, Indiana

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ISBN 13 :
Total Pages : 296 pages
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Download or read book Cemeteries, in Union County, Indiana written by and published by . This book was released on 1934 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Measurement of the Branching Fraction for B+- -] Chic0 K+-

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Total Pages : 7 pages
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Book Synopsis Measurement of the Branching Fraction for B+- -] Chic0 K+- by : B. Aubert

Download or read book Measurement of the Branching Fraction for B+- -] Chic0 K+- written by B. Aubert and published by . This book was released on 2003 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the branching fraction of the decay B{sup {+-}} {yields} {chi}{sub c0}K{sup {+-}} from a sample of 89 million B{bar B} pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The {chi}{sub c0} meson is reconstructed through its two-body decays to {pi}{sup +}{pi}{sup -} and K{sup +}K{sup -}. The authors measure {Beta}(B{sup {+-}} {yields} {chi}{sub c0}K{sup {+-}}) x {Beta}({chi}{sub c0} {yields} {pi}{sup +}{pi}{sup -}) = (1.32 {sub -0.27}{sup +0.28}(stat) {+-} 0.09(syst)) x 10{sup -6} and {Beta}(B{sup {+-}} {yields} {chi}{sub c0}K{sup {+-}}) x {Beta}({chi}{sub c0} {yields} K{sup +}K{sup -}) = (1.49{sub -0.34}{sup +0.36}(stat) {+-} 0.11(syst)) x 10{sup -6}. Using the known values for the {chi}{sub c0} decays branching fractions, they combine these results to obtain {Beta}(B{sup {+-}} {yields} {chi}{sub c0} K{sup {+-}}) = (2.7 {+-} 0.7) x 10{sup -4}.

Measurement of the Branching Fractions of the Rare Decays B0 to Ds(*)+pi-, B0 to Ds(*)+rho-, and B0 to Ds(*)-K(*)

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Total Pages : 15 pages
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Book Synopsis Measurement of the Branching Fractions of the Rare Decays B0 to Ds(*)+pi-, B0 to Ds(*)+rho-, and B0 to Ds(*)-K(*) by :

Download or read book Measurement of the Branching Fractions of the Rare Decays B0 to Ds(*)+pi-, B0 to Ds(*)+rho-, and B0 to Ds(*)-K(*) written by and published by . This book was released on 2008 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report the measurement of the branching fractions of the rare decays B° → D{sub s}{sup (*)+}?−, B° → D{sub s}{sup (*)+}?−, and B° → D{sub s}{sup (*)-} K{sup (*)+} in a sample of 381 x 106?(4S) decays into B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric-energy ee− storage ring. They present evidence for the decay B° → D{sub s}− K*+ and the vector-vector decays B° → D{sub s}{sup *+}?− and B° → D{sub s}{sup *-} K{sup *+}, as well as the first measurement of the vector meson polarization in these decays. They also determine the ratios of the CM-suppressed to CKM-favored amplitudes r(D{sup (*)}?) and r(D{sup (*)}?) in decays B° → D{sup (*)}{sup {+-}}?{sup {-+}} and B° → D{sup (*)}{sup {+-}}?{sup {-+}}, and comment on the prospects for measuring the Cp observable sin(2? +?).

Measurement of the Branching Fraction of E[sup +]e[sup -] --] B[sup 0][bar B][sup 0] at the [Upsilon] (4S) Resonance

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Book Synopsis Measurement of the Branching Fraction of E[sup +]e[sup -] --] B[sup 0][bar B][sup 0] at the [Upsilon] (4S) Resonance by :

Download or read book Measurement of the Branching Fraction of E[sup +]e[sup -] --] B[sup 0][bar B][sup 0] at the [Upsilon] (4S) Resonance written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report a measurement of the branching fraction e[sup +]e[sup -] --> B[sup 0][bar B][sup 0] with a data sample of 81.7 fb[sup -1] collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II asymmetric-energy e[sup +]e[sup -] storage ring. Using partial reconstruction of the decay [bar B][sup 0] --> D*[sup +][ell][sup -][bar [nu]][sub [ell]] they obtain a preliminary result of f[sub 00] = 0.486 [+-] 0.010(stat.) [+-] 0.009(sys.). The result does not depend on branching fractions of the [bar B][sup 0] and the D*[sup +] decay chains, on the simulated reconstruction efficiency, on the ratio of the charged and neutral B meson lifetimes, nor on assumption of isospin symmetry. This measurement is important for normalizing many B decay branching fractions, and contributes to an understanding of isospin violation in the [Upsilon](4S) system.