Measurement of the absolute branching fractions for D° decays into K ̄π+, K ̄π+π+π ̄, K°π+π ̄ [K-pi, K-pi-pi-pi, K-pi-pi] PDF Download
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![Measurement of the absolute branching fractions for D° decays into K ̄π+, K ̄π+π+π ̄, K°π+π ̄ [K-pi, K-pi-pi-pi, K-pi-pi] PDF](https://books.google.com/books/content/images/frontcover/zsjUzQEACAAJ?fife=w150-h200)
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Languages : de
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![Measurement of the absolute branching fractions for D° decays into K ̄π+, K ̄π+π+π ̄, K°π+π ̄ [K-pi, K-pi-pi-pi, K-pi-pi] PDF](https://books.google.com/books/content/images/frontcover/zsjUzQEACAAJ?fife=w80-h100)
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![Measurement of the absolute branching fractions for D0 decays into K-[pi]+, K-[pi]+[pi]+[pi]-, K0[pi]+[pi]- PDF](https://books.google.com/books/content/images/frontcover/64yGzQEACAAJ?fife=w80-h100)
Author: ARGUS Collaboration
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Languages : en
Pages : 6
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Languages : en
Pages : 7
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The authors measure the absolute branching fraction for D° → K−? using partial reconstruction of {bar B}° → D*+Xl−{bar {nu}}{sub {ell}} decays, in which only the charged lepton and the pion from the decay D*+ → D°?+ are used. Based on a data sample of 230 million B{bar B} pairs collected at the?(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, they obtain?(D° → K−?+) = (4.007 ± 0.037 ± 0.070)%, where the first error is statistical and the second error is systematic.
Author: Romulus Godang
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Languages : en
Pages : 8
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The authors measure the absolute branching fraction for D{sup 0} {yields} K{sup -} {pi}{sup +} using partial reconstruction of {bar B}{sup 0} {yields} D*{sup +} X {ell}{sup -} {bar {nu}}{sub {ell}} decays. Only the charged lepton and the soft pion from the decay D*{sup +} {yields} D{sup 0} {pi}{sup +} are used. Based on a data sample of 230 million B{bar B} pairs collected at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, they obtain {Beta}(D{sup 0} {yields} K{sup -} {pi}{sup +}) = (4.025 {+-} 0.038 {+-} 0.098)%, where the first error is statistical and the second error is systematic.
Author: J. C. Chen
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Languages : en
Pages : 8
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We present branching fraction measurements of charged and neutral B decays to D{pi}{sup -}, D*{pi}{sup -} and D**{pi}{sup -} with a missing mass method, based on a sample of 231 million {Upsilon}(4S) {yields} B{bar B} pairs collected by the BABAR detector at the PEP-II e{sup +}e{sup -} collider. One of the B mesons is fully reconstructed and the other one decays to a reconstructed charged {pi} and a companion charmed meson identified by its recoil mass, inferred by kinematics. Here D** refers to the sum of all the non-strange charm meson states with masses in the range 2.2-2.8 GeV/c{sup 2}.
![Measurement of the Ratio of Branching Fractions B(D0 ---] K+ Pi- ) PDF](https://books.google.com/books/content/images/frontcover/8sjFwQEACAAJ?fife=w80-h100)
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Languages : en
Pages : 7
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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.
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Languages : en
Pages : 9
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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.
![Measurement of Branching Fractions and Resonance Contributions for B0 -] D0bar K+ Pi- and Search for B0 -] D0 K+ Pi- Decays PDF](https://books.google.com/books/content/images/frontcover/6_vWwQEACAAJ?fife=w80-h100)
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Languages : en
Pages : 7
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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+?−)
![MEASUREMENT OF BRANCHING RATIO (D0 ---] K- PI+) USING PARTIAL RECONSTRUCTION OF ANTI-B ---] D*+ X LEPTON- ANTI-NEUTRINO. PDF](https://books.google.com/books/content/images/frontcover/i3HZjwEACAAJ?fife=w80-h100)
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Languages : en
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We present a measurement of the absolute branching fraction for D[sup 0][yields] K[sup -][pi][sup+] using the reconstruction of the decay chain[bar B][yields] D*[sup+]X[ell][sup -][bar[nu]], D*[sup+][yields] D[sup 0][pi][sup+] where only the lepton and the low-momentum pion from the D*[sup+] are detected. With data collected by the CLEO II detector at the Cornell Electron Storage Ring, we have determined Br(D[sup 0][yields] K[sup -][pi][sup+])=[3.81[+-] 0.15(stat.)[+-] 0.16(syst.)]%.
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Languages : en
Pages : 16
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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.
