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Measurement Of Branching Fractions Of B0 Decays To K11270 Pi And K11400 Pi
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Book Synopsis Measurement of Branching Fractions of B0 Decays to K1(1270)+ Pi- and K1(1400)+ Pi- by :
Download or read book Measurement of Branching Fractions of B0 Decays to K1(1270)+ Pi- and K1(1400)+ Pi- written by and published by . This book was released on 2008 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the branching fraction of neutral B meson decaying to final states containing a K1 meson, i.e. K1(1270) and K1(1400), and a charged pion. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 454 million B{bar B} pairs produced in ee− annihilation. We measure the branching fraction?(B° → K1+?−) = (31.0 ± 2.7 ± 6.9) x 10−6, where the first error quoted is statistical and the second is systematic. In the framework of the K-matrix formalism used to describe these decays, we also set limits on the ratio of the production constants for the K1(1270)+ and K1(1400)+ mesons in B° decays.
Book Synopsis Measurement of Branching Fractions of B Decays to K1(1270)pi and K1(1400)pi and Determination of the CKM Angle Alpha from B0 --] A1(1260) /- Pi- by :
Download or read book Measurement of Branching Fractions of B Decays to K1(1270)pi and K1(1400)pi and Determination of the CKM Angle Alpha from B0 --] A1(1260) /- Pi- written by and published by . This book was released on 2009 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report measurements of the branching fractions of neutral and charged B meson decays to final states containing a K1(1270) or K1(1400) meson and a charged pion. The data, collected with the BABAR detector at the SLAC National Accelerator Laboratory, correspond to 454 million B{bar B} pairs produced in ee− annihilation. We measure the branching fractions?(B° → K1(1270)+?− + K1(1400)+?−) = 3.1{sub 0.7}{sup +0.8} x 10−5 and?(B+ → K1(1270)°?+ + K1(1400)°?+) = 2.9{sub -1.7}{sup +2.9} x 10−5 (
Book Synopsis Measurement of the Branching Fraction of B0 → [pi]0[pi]0 Decays Using the Final Belle Dataset by : T'Mir Danger Julius
Download or read book Measurement of the Branching Fraction of B0 → [pi]0[pi]0 Decays Using the Final Belle Dataset written by T'Mir Danger Julius and published by . This book was released on 2015 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improved Measurements of the Branching Fractions for B0 Into Pi+pi- and B0 Into K+pi-, and a Search for B0 Into K+K- by :
Download or read book Improved Measurements of the Branching Fractions for B0 Into Pi+pi- and B0 Into K+pi-, and a Search for B0 Into K+K- written by and published by . This book was released on 2006 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of the branching fractions for the charmless two-body decays B° →??− and B° → K+?−, and a search for the decay B° → K+K−. They include the effects of final-state radiation from the daughter mesons for the first time, and quote branching fractions for the inclusive processes B° → h+h'−n?, where h and h' are pion or kaons. The maximum value of the sum of the energies of the n undetected photons, E{sub {gamma}}{sup max}, is mode-dependent. Using a data sample of approximately 227 million?(4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e− collider at SLAC.
Book Synopsis Measurements of the Branching Fractions of Charged B Decays to K+-pi-+pi+- Final States by :
Download or read book Measurements of the Branching Fractions of Charged B Decays to K+-pi-+pi+- Final States 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 results of searches for B-meson decays to K[sup+][pi][sup -][pi][sup+] with the BABAR detector. With a data sample of 61.6 million B[bar B] pairs, they measure the branching fractions and 90% confidence-level upper limits averaged over charge-conjugate states (the first error is statistical and the second is systematic):[Beta](B[sup+][yields] K*[sup 0](892)[pi][sup+])= (15.5[+-] 1.8[sub -4.0][sup+1.5]) x 10[sup -6], [Beta](B[sup+][yields] f[sub 0](980)K[sup+], f[sub 0][yields][pi][sup+][pi][sup -])= (9.2[+-] 1.2[sub -2.6][sup+2.1]) x 10[sup -6], [Beta](B[sup+][yields][bar D][sup 0][yields] K[sup+][pi][sup -])= (184.6[+-] 3.2[+-] 9.7) x 10[sup -6], [Beta](B[sup+][yields][rho][sup 0](770)K[sup+])
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.
Book Synopsis Measurement of the Ratio of Branching Fractions B(D0 ---] K+ Pi- ) by :
Download or read book Measurement of the Ratio of Branching Fractions B(D0 ---] K+ Pi- ) written by and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a measurement of R{sub B}, the ratio of the branching fraction for the rare decay D° → K?− to that for the Cabibbo-favored decay D° → K−?+. Charge conjugate decays are implicitly included. A signal of 2005 ± 104 events for the decay D° → K+?− is obtained using the CDF II detector at the Fermilab Tevatron collider. The data set corresponds to an integrated luminosity of 0.35 fb−1 produced in {bar p}p collisions at √s = 1.96 TeV. Assuming no mixing, they find R{sub B} = [4.05 ± 0.21(stat) ± 0.11(syst)] x 10−3. This measurement is consistent with the world average, and comparable in accuracy with the best measurements from other experiments.
Book Synopsis Measurement of the Ratios of the Branching Fractions [Beta](B0[sigma] --> D−[sigma][pi]+ [pi]+[pi]−)/[Beta](B0 --> D−[pi]+ [pi]+[pi]−) and [Beta](B0[sigma] --> D−[sigma][pi]+)/[Beta](B0 --> D−[pi]+ [pi]+[pi]−) with the CDF Detector by : Arkadiy Bolshov
Download or read book Measurement of the Ratios of the Branching Fractions [Beta](B0[sigma] --> D−[sigma][pi]+ [pi]+[pi]−)/[Beta](B0 --> D−[pi]+ [pi]+[pi]−) and [Beta](B0[sigma] --> D−[sigma][pi]+)/[Beta](B0 --> D−[pi]+ [pi]+[pi]−) with the CDF Detector written by Arkadiy Bolshov and published by . This book was released on 2007 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the measurement of the ratios of branching fractions B... to B..., and B... to B... We analyze data taken with the CDF II detector that corresponds to an integrated luminosity of 355 pb - 1 in pp collisions at ... TeV at the Fermilab Tevatron. Using a novel displaced track trigger we reconstruct 494 ± 28 B... decays, 8098 ± 114 B... decays, 159 ± 17 B... decays, and 3288 ± 76 B... decays. Using the world average value of the ... production ratio fs/fd = 0.259 ± 0.038, we determine the ratios of branching fractions ... where the uncertainties labeled BR and PR refer to the uncertainty on the D meson branching fractions and the production ratio fs/fd, respectively.
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}.
Book Synopsis Measurement of Partial Branching Fractions of Inclusive Charmless B Meson Decays to K, K0, and Pi by :
Download or read book Measurement of Partial Branching Fractions of Inclusive Charmless B Meson Decays to K, K0, and Pi written by and published by . This book was released on 2011 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of partial branching fractions of B 2!KX, B 2!K° X, and B 2![pi]+X, where X denotes any accessible final state above the endpoint for B decays to charmed mesons, specifically for momenta of the candidate hadron greater than 2.34 (2.36) GeV for kaons (pions) in the B rest frame. These measurements are sensitive to potential new-phisics particles which could enter the b 2!s(d) loop transitions. The analysis is performed on a data sample consisting of 383 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II e+e− asymmetric energy collider. The results are in agreement with standard model predictions and exclude large enhancements of the inclusive branching fraction due to sources of new physics.
Book Synopsis Measurements of the Decays B0-]D0barppbar, B0-]D*0ppbar, B0-]D-ppbar\pi+, and B0-]D*-ppbar\pi by : B. Aubert
Download or read book Measurements of the Decays B0-]D0barppbar, B0-]D*0ppbar, B0-]D-ppbar\pi+, and B0-]D*-ppbar\pi written by B. Aubert and published by . This book was released on 2006 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present measurements of branching fractions of B{sup 0} decays to multi-body final states containing protons, based on 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. They measure the branching fractions {Beta}(B{sup 0} {yields} {bar D}{sup 0} p{bar p}) = (1.13 {+-} 0.06 {+-} 0.08) x 10{sup -4} {Beta}(B{sup 0} {yields} {bar D}*{sup 0} p{bar p}) = (1.01 {+-} 0.10 {+-} 0.09) x 10{sup -4}, {Beta}(B{sup 0} {yields} D{sup -} p{bar p}{pi}{sup +}) = (3.38 {+-} 0.14 {+-} 0.29) x 10{sup -4}, and {Beta}(B{sup 0} {yields} D*{sup -} p{bar p}{pi}{sup +}) = (4.81 {+-} 0.22 {+-} 0.44) x 10{sup -4} where the first error is statistical and the second systematic. They present a search for the charmed pentaquark state, {Theta}{sub c}(3100) observed by H1 and put limits on the branching fraction {Beta}(B{sup 0} {yields} {Theta}{sub c}{bar p}{pi}{sup +}) x {Beta}({Theta}{sub c} {yields} D*{sup -}p)
Book Synopsis Improved Measurements of Branching Fractions for B0 -] Pi+pi-, K+pi-, and Search for B0 -] K+K- by : J. C. Chen
Download or read book Improved Measurements of Branching Fractions for B0 -] Pi+pi-, K+pi-, and Search for B0 -] K+K- 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: We present preliminary measurements of branching fractions for the charmless two-body decays B{sup 0} {yields} {pi}{sup +}{pi}{sup -} and K{sup +}{pi}{sup -}, and a search for B{sup 0} {yields} K{sup +}K{sup -} using a data sample of approximately 227 million B{bar B} decays. Signal yields are extracted with a multi-dimensional maximum likelihood fit, and the efficiency is corrected for the effects of final-state radiation. We find the charge-averaged branching fractions (in units of 10{sup -6}): {Beta}(B{sup 0} {yields} {pi}{sup +}{pi}{sup -}) = 5.5 {+-} 0.4 {+-} 0.3; {Beta}(B{sup 0} {yields} K{sup +}{pi}{sup -}) = 19.2 {+-} 0.6 {+-} 0.6; and {Beta}(B{sup 0} {yields} K{sup +}K{sup -}) =
Book Synopsis Measurement of Branching Fractions and Resonance Contributions for B0 -] D0bar K+ Pi- and Search for B0 -] D0 K+ Pi- Decays by :
Download or read book Measurement of Branching Fractions and Resonance Contributions for B0 -] D0bar K+ Pi- and Search for B0 -] D0 K+ Pi- Decays written by and published by . This book was released on 2005 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using 226 million?(4S) → B{bar B} events collected with the BABAR detector at the PEp-II ee− storage ring at the Stanford Linear Accelerator Center, they measure the branching fraction for B° → {bar D}°K+?−, excluding B° → D*−K+, to be?(B° → {bar D}°K+?−) = 88 ± 15 ± 9 x 10−6. They observe B° → {bar D}°K*(892)° and B° → D*2(2460)−K+ contributions. The ratio of branching fractions?(B° → D*− K+)/?(B° → D*−?+) = (7.76 ± 0.34 ± 0.29)% is measured separately. The branching fraction for the suppressed mode B° → D°K+?− is?(B° → D°K+?−)
Book Synopsis Improved Measurements of Neutral B Decay Branching Fractions to K0s Pi+ Pi- and the Charge Asymmetry of B0 -] K*+ Pi- by : J. C. Chen
Download or read book Improved Measurements of Neutral B Decay Branching Fractions to K0s Pi+ Pi- and the Charge Asymmetry of B0 -] K*+ Pi- written by J. C. Chen and published by . This book was released on 2005 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors analyze the decay B{sup 0} {yields} K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} using a sample of 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. A maximum likelihood fit finds the following branching fractions: {Beta}(B{sup 0} {yields} K{sup 0}{pi}{sup +}{pi}{sup -}) = (43.0 {+-} 2.3 {+-} 2.3) x 10{sup -6}, {Beta}(B{sup 0} {yields} f{sub 0}({yields} {pi}{sup +}{pi}{sup -})K{sup 0}) = (5.5 {+-} 0.7 {+-} 0.5 {+-} 0.3) x 10{sup -6} and {Beta}(B{sup 0} {yields} K*{sup +}{pi}{sup -}) = (11.0 {+-} 1.5 {+-} 0.5 {+-} 0.5) x 10{sup -6}. For these results, the first uncertainty is statistical, the second is systematic, and the third (if present) is due to the effect of interference from other resonances. They also measure the CP-violating charge asymmetry in the decay B{sup 0} {yields} K*{sup +}{pi}{sup -}, {Alpha}{sub K*{pi}} = -0.11 {+-} 0.14 {+-} 0.05.
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].
Book Synopsis Measurement of the Branching Fraction for the Decay B± [arrow] K*±[gamma], K*± [arrow] K±[pi]0 with the BaBar Detector by : Karsten Köneke
Download or read book Measurement of the Branching Fraction for the Decay B± [arrow] K*±[gamma], K*± [arrow] K±[pi]0 with the BaBar Detector written by Karsten Köneke and published by . This book was released on 2003 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis MEASUREMENTS OF BRANCHING FRACTIONS AND CP VIOLATING ASYMMETRIES IN B0 ---] PI+ PI-, K+ PI-, K+ K- DECAYS. by :
Download or read book MEASUREMENTS OF BRANCHING FRACTIONS AND CP VIOLATING ASYMMETRIES IN B0 ---] PI+ PI-, K+ PI-, K+ K- DECAYS. written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of branching fractions and CP-violating asymmetries for neutral B meson decays to two-body final states of charged pions and kaons. The results are obtained from a data sample of about 88 million[Upsilon](4S)[yields] B[bar B] decays collected between 1999 and 2002 with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-independent fit we measure the charge-averaged branching fractions[Beta](B[sup 0][yields][pi][sup+][pi][sup -])= (4.7[+-] 0.6[+-] 0.2) x 10[sup -6] and[Beta](B[sup 0][yields] K[sup+][pi][sup -])= (17.9[+-] 0.9[+-] 0.7) x 10[sup -6], where the first uncertainty is statistical and the second is systematic; the 90% confidence level upper limit[Beta](B[sup 0][yields] K[sup+]K[sup -])
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