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A Measurement Of Cp Violating Asymmetries In Bsup 0 Fsup 0980ks Decays
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Book Synopsis A Measurement of CP Violating Asymmetries in B[sup 0] --] F[sup 0](980)Ks Decays by :
Download or read book A Measurement of CP Violating Asymmetries in B[sup 0] --] F[sup 0](980)Ks Decays 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 have presented an updated preliminary measurement of the CP-violating asymmetries in B[sup 0] --> f[sub 0](980)( --> [pi][sup +][pi][sup -])K[sub s][sup 0] decays. Their results for S and C are consistent with the Standard Model. The hypothesis of no mixing-induced CP violation is excluded at the 2.3[sigma] level.
Book Synopsis Measurements of CP-Violating Asymmetries in B^0 Toa_1^+(1260) \pi^- Decays by :
Download or read book Measurements of CP-Violating Asymmetries in B^0 Toa_1^+(1260) \pi^- Decays written by and published by . This book was released on 2007 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of CP-violating asymmetries in the decay B° → a1{sup ±}(1260)[pi]{sup {-+}} with a1{sup ±}(1260) → [pi]{sup {-+}}[pi]{sup ±}[pi]{sup ±}. The data sample corresponds to 384 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric B-factory at SLAC. They measure the CP-violating asymmetry [Alpha]{sub CP}{sup a{sub 1}[pi]} = -0.07 ± 0.07 ± 0.02, the mixing-induced CP violation parameter S{sub a{sub 1}[pi]} = 0.37 ± 0.21 ± 0.07, the direct Cp violation parameter C{sub a{sub 1}[pi]} = -0.10 ± 0.15 ± 0.09, and the parameters [Delta]C{sub a{sub 1}[pi]} = 0.26 ± 0.15 {+-} 0.07 and [Delta]S{sub a{sub 1}[pi]} = -0.14 {+-} 0.21 {+-} 0.06. From these measured quantities they determine the angle [alpha]{sub eff} = 78.6{sup o} {+-} 7.3{sup o}.
Download or read book Bürgerturnverein Basel written by and published by . This book was released on 1894 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of CP-Violating Asymmetries in B0 Decays to CP Eigenstates by :
Download or read book Measurement of CP-Violating Asymmetries in B0 Decays to CP Eigenstates written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurement uses a data sample of 23 million[Upsilon](4S)[yields] B[bar B] decays collected by the BABAR detector at the PEP-II asymmetric B Factory at SLAC. In this sample, we find events where one neutral B meson is fully reconstructed in a CP eigenstate 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 is sin2[beta]= 0.34[+-] 0.20 (stat)[+-] 0.05 (syst).
Book Synopsis Dedham Library Scrapbook, 1972-1980 by :
Download or read book Dedham Library Scrapbook, 1972-1980 written by and published by . This book was released on 1972 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of CP-violating Asymmetries in B0 -] Ks Pi0 Decays by :
Download or read book Measurements of CP-violating Asymmetries in B0 -] Ks Pi0 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 present a measurement of the time-dependent CP-violating (CPV) asymmetries in B[sup 0] [yields] K[sub s][sup 0][pi][sup 0] decays based on 124 million [Upsilon](4S) [yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. In a sample containing 122 [+-] 16 signal decays, we obtain the magnitude of the direct CPV asymmetry C[sub K[sub S][sup 0][pi][sup 0]] = 0.40 [sub -0.28][sup +0.27] [+-] 0.09 and the magnitude of the CPV asymmetry in the interference between mixing and decay S[sub K[sub S][sup 0][pi][sup 0]] = 0.48 [sub -0.47][sup +0.38] [+-] 0.06 where the first error is statistical and the second systematic.
Book Synopsis Measurement of CP-Violating Asymmetries in B0 to (rho Pi)0 Using a Time-Dependent Dalitz Plot Analysis by :
Download or read book Measurement of CP-Violating Asymmetries in B0 to (rho Pi)0 Using a Time-Dependent Dalitz Plot Analysis written by and published by . This book was released on 2007 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a measurement of CP-violating asymmetries in B° → (??)° →??−?° decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375 million?(4S) → B{bar B} decays, collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure 26 coefficients of the bilinear form-factor terms occurring in the time-dependent decay rate of the B° meson. We derive the physically relevant quantities from these coefficients. In particular, we measure a constraint on the angle? of the Unitarity Triangle.
Book Synopsis Measurement of CP-Violating Asymmetries in B0 to (rho Pi)0 Using a Time-Dependent Dalitz Plot Analysis by : B. Aubert
Download or read book Measurement of CP-Violating Asymmetries in B0 to (rho Pi)0 Using a Time-Dependent Dalitz Plot Analysis written by B. Aubert and published by . This book was released on 2006 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a measurement of CP-violating asymmetries in B{sup 0} {yields} ({rho}{pi}){sup 0} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 347 million {Upsilon}(4S) {yields} B{bar B} decays, collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure 26 coefficients of the bilinear form factor terms occurring in the time-dependent decay rate of the B{sup 0} meson and derive the physically relevant quantities from these coefficients. In particular we find a three standard deviation evidence of direct CP-violation in the B{sup 0} {yields} {rho}{sup {+-}}{pi}{sup {-+}} decays, with systematic uncertainties included. We also achieve a constraint of the angle {alpha} of the Unitarity Triangle. All results presented are preliminary.
Book Synopsis Measurement of Time-Dependent CP-Violating Asymmetries in B^0 Meson Decays to Eta' K^0_L. by : J. C. Chen
Download or read book Measurement of Time-Dependent CP-Violating Asymmetries in B^0 Meson Decays to Eta' K^0_L. written by J. C. Chen and published by . This book was released on 2005 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a preliminary measurement of CP-violating parameters S and C from fits of the time-dependence of B{sup 0} meson decays to {eta}'K{sub L}{sup 0}. The data were recorded with the BABAR detector at PEP-II and correspond to 232 x 10{sup 6} B{bar B} pairs produced in e{sup +}e{sup -} annihilation through the {Upsilon}(4S) resonance. By fitting the time-dependent CP asymmetry of the reconstructed B{sup 0} {yields} {eta}'K{sub L}{sup 0} events, they find S = 0.60 {+-} 0.31 {+-} 0.04 and C = 0.10 {+-} 0.21 {+-} 0.03, where the first error quoted is statistical and the second is systematic. They also perform a combined fit using both {eta}'K{sub S}{sup 0} and {eta}'K{sub L}{sup 0} data, and find S = 0.36 {+-} 0.13 {+-} 0.03 and C = -0.16 {+-} 0.09 {+-} 0.02.
Book Synopsis Measurements of CP-Violating Asymmetries in B0 to A1+-(1260) Pi-+ Decays by :
Download or read book Measurements of CP-Violating Asymmetries in B0 to A1+-(1260) Pi-+ Decays written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of CP-violating asymmetries in the decays B° → a1{sup ±}(1260)[pi]{sup {-+}} with a1{sup ±}(1260) → [pi]{sup {-+}}[pi]{sup ±}[pi]{sup ±}. The data sample corresponds to 384 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric B-factory at SLAC. They measure the time- and flavor-integrated charge asymmetry A{sub CP}{sup 1{sub 1}±} = -0.07 ± 0.07 ± 0.02, the mixing-induced CP violation parameter S{sub a{sub 1}[pi]} = 0.37 ± 0.21 ± 0.07, the direct CP violation parameter C{sub a{sub 1}[pi]} = -0.10 ± 0.15 ± 0.09, and the parameter [Delta]C{sub a{sub 1}[pi]} = 0.26 ± 0.15 {+-} 0.07 and [Delta]S{sub a{sub 1}[pi]} = -0.14 {+-} 0.21 {+-} 0.06. From these measured quantities they extract the angle [alpha]{sub eff} = 78.6{sup o} {+-} 7.3{sup o}.
Book Synopsis Measurements of CP-Violating Asymmetries and BranchingFractions in B Decays to OmegaK and OmegaPi by : B. Aubert
Download or read book Measurements of CP-Violating Asymmetries and BranchingFractions in B Decays to OmegaK and OmegaPi written by B. Aubert and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of CP-violating asymmetries and branching fractions for the decays B{sup +} {yields} {omega}{pi}{sup +}, B{sup +} {yields} {omega}K{sup +}, and B{sup 0} {yields} {omega}K{sup 0}. The data sample corresponds to 232 million B{bar B} pairs produced by e{sup +}e{sup -} annihilation at the {Upsilon}(4S) resonance. For the decay B{sup 0} {yields} {omega}K{sub s}{sup 0}, we measure the time-dependent CP-violation parameters S = 0.51{sub -0.39}{sup +0.35} {+-} 0.02, and C = -0.55{sub -0.26}{sup +0.28} {+-} 0.03. We also measure the branching fractions, in units of 10{sup -6}, {Beta}(B{sup +} {yields} {omega}{pi}{sup +}) = 6.1 {+-} 0.7 {+-} 0.4, {Beta}(B{sup +} {yields} {omega}K{sup +}) = 6.1 {+-} 0.6 {+-} 0.4, and {Beta}(B{sup 0} {yields} {omega}K{sup 0}) = 6.2 {+-} 1.0 {+-} 0.4, and charge asymmetries {Alpha}{sub ch}(B{sup +} {yields} {omega}{pi}{sup +}) = -0.01 {+-} 0.10 {+-} 0.01 and {Alpha}{sub ch}(B{sup +} {yields} {omega}K{sup +}) = 0.05 {+-} 0.09 {+-} 0.01.
Book Synopsis Measurements of the Branching Fraction and CP-Violating Asymmetries of B[sup 0]--] K[sup 0][pi][sup 0] Decays by :
Download or read book Measurements of the Branching Fraction and CP-Violating Asymmetries of B[sup 0]--] K[sup 0][pi][sup 0] Decays written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: No abstract prepared.
Book Synopsis Study of CP-violating Asymmetries in B --] Pi[sup+]/-pi[sup -]/+, K[sup+]/-pi[sup -]/+ Decays by :
Download or read book Study of CP-violating Asymmetries in B --] Pi[sup+]/-pi[sup -]/+, K[sup+]/-pi[sup -]/+ Decays written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary measurement of the time-dependent CP-violating asymmetry parameters S and C in neutral B decays to the[pi][sup+-][pi] CP eigenstate, and an updated preliminary measurement of the charge asymmetry in B[yields] K[sup[+-]][pi] decays. Event yields and CP-violation parameters are determined simultaneously from a multidimensional unbinned maximum likelihood fit. In a data sample consisting of approximately 33 million[Upsilon](4S)[yields] B[bar B] decays collected with the BABAR detector at the SLAC PEP-II asymmetric B Factory, we find 65[sub -11][sup+12][pi][sup+-][pi] and 217[+-] 18 K[sup[+-]][pi] candidates and measure S= 0.03[sub -0][sup+0][+-] 0.11, C= -0.25[sub -0][sup+0]= -0.25[sub -0][sup+0][+-] 0.14, and= -0.07[+-] 0.08[+-] 0.02, where the first error is statistical and the second is systematic.
Book Synopsis Improved Measurements of CP-Violating Asymmetries in B[sup 0] --] [pi][sup +][pi][sup -] Decays by :
Download or read book Improved Measurements of CP-Violating Asymmetries in B[sup 0] --] [pi][sup +][pi][sup -] Decays 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 preliminary updated measurements of the CP-violating parameters S[sub [pi][pi]] and C[sub [pi][pi]] in B[sup 0] --> [pi][sup +][pi][sup -] decays. Using a sample of 227 million [Upsilon](4S) --> B[bar B] decays collected with the BaBar detector at the PEP-II asymmetric-energy e[sup +]e[sup -] collider at SLAC, they observe 467 [+-] 33 signal decays and measure S[sub [pi][pi]] = -0.30 [+-] 0.17(stat)[+-] 0.03(syst), and C[sub [pi][pi]] = -0.09 [+-] 0.15(stat)[+-] 0.04(syst).
Book Synopsis Measurement of CP-Violating Asymmetries in $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ Decays at CDF. by :
Download or read book Measurement of CP-Violating Asymmetries in $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ Decays at CDF. written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We report a search for non-Standard Model physics through the measurement of CP-violating asymmetries in the singly-Cabibbo- suppressed $D^0 \to \pi^+ \pi^-$ and $D^0 \to K^+ K^- $ decays reconstructed in about 5.9 fb-1 of CDF data. We use the strong $D^{*+} \to D^0\pi^+$ decay ("D tag") to identify the flavor of the charmed meson at production time and exploit CP-conserving strong cc pair-production in pp collisions. Large samples of Cabibbo-favored $D^0 \to K^-\pi^+$ decays with and without D tag are used to highly suppress systematic uncertainties due to detector effects. The results are the world's most precise measurements to date and have been published by Physical Review D in January 2012 [1].
Book Synopsis Measurements of the Branching Fraction and CP-Violation Asymmetries in B0-]f0(980)Ks by :
Download or read book Measurements of the Branching Fraction and CP-Violation Asymmetries in B0-]f0(980)Ks 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 measurements of the branching fraction and CP-violating asymmetries in the decay B[sup 0] [yields] f[sub 0](980)K[sub S][sup 0]. The results are obtained from a data sample of 123 x 10[sup 6] [Upsilon](4S) [yields] B[bar B] decays. From a time-dependent maximum likelihood fit they measure the branching fraction [Beta](B[sup 0] [yields] f[sub 0](980)([yields][Pi][sup +][pi][sup 0])K[sup 0]) = (6.0 [+-] 0.9 [+-] 0.6 [+-] 1.2) x 10[sup -6], the mixing-induced CP violation parameter S = 1.62[sub -0.51][sup +0.56] [+-] 0.09 [+-] 0.04 and the direct CP violation parameter C = 0.27 [+-] 0.36 [+-] 0.10 [+-] 0.07, where the first errors are statistical, the second systematic and the third due to model uncertainties. They measure the f[sub 0](980) mass and width to be m[sub f[sub 0(980)]] = (980.6 [+-] 4.1 [+-] 0.5 [+-] 4.0) MeV/c[sup 2] and [Lambda][sub f[sub 0(980)]] = (43[sub -9][sup +12] [+-] 3 [+-] 9) MeV/c[sup 2], respectively.
Book Synopsis Study of CP-violating Asymmetries in B --] Pi/-pi−/+, K/-pi−/+ Decays by :
Download or read book Study of CP-violating Asymmetries in B --] Pi/-pi−/+, K/-pi−/+ Decays written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary measurement of the time-dependent CP-violating asymmetry parameters S and C in neutral B decays to the [pi]{sup +-}[pi] CP eigenstate, and an updated preliminary measurement of the charge asymmetry in B 2!K{sup ±}[pi] decays. Event yields and CP-violation parameters are determined simultaneously from a multidimensional unbinned maximum likelihood fit. In a data sample consisting of approximately 33 million [Upsilon](4S) 2!B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric B Factory, we find 6511{sup +12} [pi]{sup +-}[pi] and 217 ± 18 K{sup ±}[pi] candidates and measure S = 0.030{sup +0} ± 0.11, C = -0.25−0{sup +0} = -0.25−0{sup +0} ± 0.14, and = -0.07 {+-} 0.08 {+-} 0.02, where the first error is statistical and the second is systematic.
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