G Brandenburg

Publications (420)1351.78 Total impact

• Article: Exclusive branching-fraction measurements of semileptonic tau decays into three charged hadrons, into phipi(-)nu tau, and into phi K(-)nu tau.

  B Aubert, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: Using a data sample corresponding to an integrated luminosity of 342 fb(-1) collected with the BABAR detector at the SLAC PEP-II electron-positron storage ring operating at a center-of-mass energy near 10.58 GeV, we measure B(tau(-)--> pi(-)pi(-)pi+nu(tau)(ex.K(S0))=(8.83+/-0.01+/-0.13)%, B(tau(-) -->K(-)pi(-)pi+nu tau(ex.K(S0))=(0.273+/-0.002+/-0.009)%, B(tau(-) -->K(-)pi(-)K+nu tau)=(0.1346+/-0.0010+/-0.0036)%, and B(tau(-) -->K(-)K(-)K+nu tau)=(1.58+/-0.13+/-0.12)x10;{-5}, where the uncertainties are statistical and systematic, respectively. These include significant improvements over previous measurements and a first measurement of B(tau(-) -->K(-)K(-)K+nu tau) in which no resonance structure is assumed. We also report a first measurement of B(tau(-) -->var phi(-)nu tau)=(3.42+/-0.55+/-0.25)x10(-5), a new measurement of B(tau(-) -->var phi K(-)nu tau)=(3.39+/-0.20+/-0.28)x10(-5) and a first upper limit on B(tau(-) -->K(-)K(-)K+nu tau(ex.var phi)).
  Physical Review Letters 02/2008; 100(1):011801. · 7.37 Impact Factor
• Article: Measurement of branching fractions and mass spectra of B-->Kpipigamma.

  B Aubert, R Barate, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, [......], R Liu, B Mellado, A Mihalyi, Y Pan, R Prepost, P Tan, J H von Wimmersperg-Toeller, S L Wu, Z Yu, H Neal
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  ABSTRACT: We present a measurement of the partial branching fractions and mass spectra of the exclusive radiative penguin processes B-->Kpipigamma in the range m(Kpipi)<1.8 GeV/c(2). We reconstruct four final states: K(+)pi(-)pi(+)gamma, K(+)pi(-)pi(0)gamma, K(S)(0)pi(-)pi(+)gamma, and K(S)(0)pi(+)pi(0)gamma, where K(S)(0)-->pi(+)pi(-). Using 232 x 10(6) e(+)e(-)-->BB events recorded by the BABAR experiment at the SLAC PEP-II asymmetric-energy storage ring, we measure the branching fractions B(B(+)-->K(+)pi(-)pi(+)gamma)=[2.95+/-0.13(stat)+/-0.20(syst)] x 10(-5), B(B(0)-->K(+)pi(-)pi(0)gamma)=[4.07+/-0.22(stat)+/-0.31(syst)] x 10(-5), B(B(0)-->K(0)pi(+)pi(-)gamma)=[1.85+/-0.21(stat)+/-0.12(syst)] x 10(-5), and B(B(+)-->K(0)pi(+)pi(0)gamma)=[4.56+/-0.42(stat)+/-0.31(syst)] x 10(-5).
  Physical Review Letters 05/2007; 98(21):211804. · 7.37 Impact Factor
• Article: Evidence of a broad structure at an invariant mass of 4.32 GeV/c2 in the reaction e+e- --> pi+pi-psi(2S) measured at BABAR.

  B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We present a measurement of the cross section of the process e(+)e(-)-->pi(+)pi(-)psi(2S) from threshold up to 8 GeV center-of-mass energy using events containing initial-state radiation, produced at the SLAC PEP-II e(+)e(-) storage rings. The study is based on 298 fb(-1) of data recorded with the BABAR detector. A structure is observed in the cross section not far above threshold, near 4.32 GeV. We also investigate the compatibility of this structure with the Y(4260) previously reported by this experiment.
  Physical Review Letters 05/2007; 98(21):212001. · 7.37 Impact Factor
• Article: Study of inclusive B- and B̅ 0 decays to flavor-tagged D, Ds, and Λc+

  B. Aubert, R. Barate, M. Bona, D. Boutigny, F. Couderc, Y. Karyotakis, J. P. Lees, V. Poireau, V. Tisserand, A. Zghiche, [......], B. Mellado, A. Mihalyi, A. K. Mohapatra, Y. Pan, M. Pierini, R. Prepost, P. Tan, S. L. Wu, Z. Yu, H. Neal
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  ABSTRACT: We report on a study of inclusive B- and B̅ 0 meson decays to D0X, D̅ 0X, D+X, D-X, Ds+X, Ds-X, Λc+X, Λ̅ c-X, based on a sample of 231×106 BB̅ events recorded with the BABAR detector at the Υ(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anticharm particles per B̅ decay, separately for charged and neutral parents. We derive the total charm yield per B- decay, nc-=1.208±0.023±0.040-0.029+0.035, and per B̅ 0 decay, nc0=1.203±0.030±0.034-0.035+0.044 where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties. We also present the charm momentum distributions measured in the B̅ rest frame.
  Phys. Rev. D. 04/2007; 75(7).
• Article: Measurement of the pseudoscalar decay constant fDs using charm-tagged events in e+e- collisions at square root s=10.58 GeV.

  B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, [......], B Mellado, A Mihalyi, A K Mohapatra, Y Pan, M Pierini, R Prepost, P Tan, S L Wu, Z Yu, H Neal
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  ABSTRACT: Using 230.2 fb-1 of e+e- annihilation data collected with the BABAR detector at and near the peak of the Upsilon(4S) resonance, 489+/-55 events containing the pure leptonic decay Ds+-->micro;+numicro have been isolated in charm-tagged events. The ratio of partial widths Gamma(D+-->micro+numicro)/Gamma(Ds+-->phipi+) is measured to be 0.143+/-0.018+/-0.006 allowing a determination of the pseudoscalar decay constant fDs=(283+/-17+/-7+/-14) MeV. The errors are statistical, systematic, and from the Ds+-->phipi+ branching ratio, respectively.
  Physical Review Letters 04/2007; 98(14):141801. · 7.37 Impact Factor
• Article: Search for lepton flavor violating decays tau(+/-) --> l(+/-)pi0, l(+/-)eta, l(+/-)eta'.

  B Aubert, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: A search for lepton flavor violating decays of the tau lepton to a lighter mass lepton and a pseudoscalar meson has been performed using 339 fb;{-1} of e;{+}e;{-} annihilation data collected at a center-of-mass energy near 10.58 GeV by the BABAR detector at the SLAC PEP-II storage ring. No evidence of a signal has been found, and upper limits on the branching fractions are set at the 10;{-7} level.
  Physical Review Letters 03/2007; 98(6):061803. · 7.37 Impact Factor
• Source

  Available from: Mariaroberta Monge

  Article: Measurement of B decays to ϕKγ

  B. Aubert, M. Bona, D. Boutigny, F. Couderc, Y. Karyotakis, J. P. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges, [......], J. J. Hollar, P. E. Kutter, B. Mellado, A. Mihalyi, Y. Pan, M. Pierini, R. Prepost, S. L. Wu, Z. Yu, H. Neal
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  ABSTRACT: We search for the decays B-→ϕK-γ and B¯0→ϕK¯0γ in a data sample of 228×106 BB¯ pairs collected at the Υ(4S) resonance with the BABAR detector. We measure the branching fraction B(B-→ϕK-γ)=(3.5±0.6±0.4)×10-6 and set an upper limit B(B¯0→ϕK¯0γ)<2.7×10-6 at the 90% confidence level. We also measure the direct CP asymmetry in B-→ϕK-γ, ACP=(-26±14±5)%. The uncertainties are statistical and systematic, respectively.
  Physical review D: Particles and fields 02/2007; 75(5):51102.
• Article: Observation of decays B0-->Ds(*)+ pi- and B0-->Ds(*)- K+.

  B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, [......], B Mellado, A Mihalyi, A K Mohapatra, Y Pan, M Pierini, R Prepost, P Tan, S L Wu, Z Yu, H Neal
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  ABSTRACT: We report the observation of decays B{0}-->D{s}{(*)+}pi- and B{0}-->D{s}{(*)-}K+ in a sample of 230 x 10(6) Upsilon(4S)-->BB[over] events recorded with the BABAR detector at the SLAC PEP-II asymmetric-energy e+ e- storage ring. We measure the branching fractions B(B{0}-->D{s}{+}pi-)=(1.3+/-0.3(stat)+/-0.2(syst))x10(-5), B(B{0}-->D{s}{-} K+)=(2.5+/-0.4(stat)+/-0.4(syst))x10(-5), B(B{0}-->D{s}{*+}pi-)=(2.8+/-0.6(stat)+/-0.5(syst))x10(-5), and B(B{0}-->D{s}{*-}K+)=(2.0+/-0.5(stat)+/-0.4(syst))x10(-5). The significances of the measurements to differ from zero are 5, 9, 6, and 5 standard deviations, respectively. This is the first observation of B{0}-->D{s}{+}pi-, B{0}-->D{s}{*+}pi-, and B{0}-->D{s}{*-}K+ decays.
  Physical Review Letters 02/2007; 98(8):081801. · 7.37 Impact Factor
• Article: Measurement of the CP asymmetry and branching fraction of B0-->rho0K0.

  B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We present a measurement of the branching fraction and time-dependent CP asymmetry of B(0)-->rho0K0. The results are obtained from a data sample of 227x10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at Stanford Linear Accelerator Center. From a time-dependent maximum likelihood fit yielding 111+/-19 signal events, we find B(B(0)-->rho0K0)=(4.9+/-0.8+/-0.9)x10(-6), where the first error is statistical and the second systematic. We report the measurement of the CP parameters S(rho)(0)K(0)S=0.20+/-0.52+/-0.24 and C(rho)(0)K(0)S=0.64+/-0.41+/-0.20.
  Physical Review Letters 02/2007; 98(5):051803. · 7.37 Impact Factor
• Article: Observation of B-->eta'K* and evidence for B+-->eta'rho+.

  B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We present an observation of B-->eta'K*. The data sample corresponds to 232x10(6) BB[over ] pairs collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. We measure the branching fractions (in units of 10(-6)) B(B(0)-->eta'K*0)=3.8+/-1.1+/-0.5 and B(B+-->eta'K*+)=4.9(1.7)(+1.9)+/-0.8, where the first error is statistical and the second systematic. A simultaneous fit results in the observation of B-->eta'K* with B(B-->eta'K*)=4.1(-0.9)(+1.0)+/-0.5. We also search for B-->eta'rho and eta'f(0)(980)(f(0)-->pi+pi-) with results and 90% confidence level upper limits B(B+-->eta'rho+)=8.7(-2.8-1.3)(+3.1+2.3) (<14), B(B(0)-->eta'rho0)<3.7, and B(B(0)-->eta'f(0)(980)(f(0)-->pi+pi-))<1.5. Charge asymmetries in the channels with significant yields are consistent with zero.
  Physical Review Letters 02/2007; 98(5):051802. · 7.37 Impact Factor
• Article: Vector-tensor and vector-vector decay amplitude analysis of B0-->phiK*0.

  B Aubert, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We perform an amplitude analysis of the decays B(0)-->phiK*(2)(1430)(0), phiK*(892)(0), and phi(Kpi)(0)(S-wave) with a sample of about 384x10(6) BB[over ] pairs recorded with the BABAR detector. The fractions of longitudinal polarization f(L) of the vector-tensor and vector-vector decay modes are measured to be 0.853(-0.069+0.061)+/-0.036 and 0.506+/-0.040+/-0.015, respectively. Overall, twelve parameters are measured for the vector-vector decay and seven parameters for the vector-tensor decay, including the branching fractions and parameters sensitive to CP violation.
  Physical Review Letters 02/2007; 98(5):051801. · 7.37 Impact Factor
• Source

  Available from: Fulvio Galeazzi

  Article: Observation of a Charmed Baryon Decaying to D;{0}p at a Mass Near 2.94 GeV/c;{2}.

  B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, [......], B Mellado, A Mihalyi, A K Mohapatra, Y Pan, M Pierini, R Prepost, P Tan, S L Wu, Z Yu, H Neal
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  ABSTRACT: A search for charmed baryons decaying to D(0)p reveals two states: the Lambdac(2880)+ baryon and a previously unobserved state at a mass of [2939.8+/-1.3(stat)+/-1.0(syst)] MeV/c2 and with an intrinsic width of [17.5+/-5.2(stat)+/-5.9(syst)] MeV. Consistent and significant signals are observed for the K(-)pi(+) and K(-)pi(+)pi(-)pi(+) decay modes of the D0 in 287 fb(-1) annihilation data recorded by the BABAR detector at a center-of-mass energy of 10.58 GeV. There is no evidence in the D+p spectrum of doubly charged partners. The mass and intrinsic width of the Lambdac(2880)+ baryon and relative yield of the two baryons are also measured.
  Physical Review Letters 02/2007; 98(1):012001. · 7.37 Impact Factor
• Article: Search for Lepton Flavor Violating Decays τ±→ℓ±π0, ℓ±η, ℓ±η'

  B. Aubert, M. Bona, D. Boutigny, F. Couderc, Y. Karyotakis, J. P. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges, [......], J. J. Hollar, P. E. Kutter, B. Mellado, A. Mihalyi, Y. Pan, M. Pierini, R. Prepost, S. L. Wu, Z. Yu, H. Neal
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  ABSTRACT: A search for lepton flavor violating decays of the τ lepton to a lighter mass lepton and a pseudoscalar meson has been performed using 339fb-1 of e+e- annihilation data collected at a center-of-mass energy near 10.58 GeV by the BABAR detector at the SLAC PEP-II storage ring. No evidence of a signal has been found, and upper limits on the branching fractions are set at the 10-7 level.
  Physical Review Letters 01/2007; 98(6):61803. · 7.37 Impact Factor
• Article: Improved measurements of the branching fractions for B0→π+π- and B0→K+π-, and a search for B0→K+K-

  B. Aubert, R. Barate, M. Bona, D. Boutigny, F. Couderc, Y. Karyotakis, J. P. Lees, V. Poireau, V. Tisserand, A. Zghiche, [......], J. J. Hollar, P. E. Kutter, B. Mellado, A. Mihalyi, Y. Pan, M. Pierini, R. Prepost, S. L. Wu, Z. Yu, H. Neal
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  ABSTRACT: We present measurements of the branching fractions for the charmless two-body decays B0→π+π- and B0→K+π-, and a search for the decay B0→K+K-. We include the effects of final-state radiation from the daughter mesons for the first time, and quote branching fractions for the inclusive processes B0→h+h′-nγ, where h and h′ are pions or kaons. The maximum value of the sum of the energies of the n undetected photons, Eγmax⁡, is mode-dependent. Using a data sample of approximately 227×106 Υ(4S)→BB̅ decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC, we measure: B(B0→π+π-nγ;Eγmax⁡=150 MeV)=(5.1±0.4±0.2)×10-6, B(B0→K+π-nγ;Eγmax⁡=105 MeV)=(18.1±0.6±0.6)×10-6, B(B0→K+K-nγ;Eγmax⁡=59 MeV)<0.5×10-6(90% confidence level), where the first uncertainty is statistical and the second is systematic. Theoretical calculations can be used to extrapolate from the above measurements the nonradiative branching fractions, B0. Using one such calculation, we find: B0(B0→π+π-)=(5.5±0.4±0.3)×10-6, B0(B0→K+π-)=(19.1±0.6±0.6)×10-6, B0(B0→K+K-)<0.5×10-6(90% confidence level). Meaningful comparison between theory and experiment, as well as combination of measurements from different experiments, can be performed only in terms of these nonradiative quantities.
  Phys. Rev. D. 01/2007; 75(1).
• Article: Inclusive Λc+ production in e+e- annihilations at √s=10.54 GeV and in Υ(4S) decays

  B. Aubert, M. Bona, D. Boutigny, F. Couderc, Y. Karyotakis, J. P. Lees, V. Poireau, V. Tisserand, A. Zghiche, E. Grauges, [......], J. J. Hollar, P. E. Kutter, B. Mellado, A. Mihalyi, Y. Pan, M. Pierini, R. Prepost, S. L. Wu, Z. Yu, H. Neal
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  ABSTRACT: We present measurements of the total production rates and momentum distributions of the charmed baryon Λc+ in e+e-→hadrons at a center-of-mass energy of 10.54 GeV and in Υ(4S) decays. In hadronic events at 10.54 GeV, charmed hadrons are almost exclusively leading particles in e+e-→cc̅ events, allowing direct studies of c-quark fragmentation. We measure a momentum distribution for Λc+ baryons that differs significantly from those measured previously for charmed mesons. Comparing with a number of models, we find none that can describe the distribution completely. We measure an average scaled momentum of ⟨xp⟩=0.574±0.009 and a total rate of NΛcqq̅ =0.057±0.002(exp⁡.)±0.015(BF) Λc+ per hadronic event, where the experimental error is much smaller than that due to the branching fraction into the reconstructed decay mode, pK-π+. In Υ(4S) decays we measure a total rate of NΛcΥ=0.091±0.006(exp⁡.)±0.024(BF) per Υ(4S) decay, and find a much softer momentum distribution than expected from B decays into a Λc+ plus an antinucleon and one to three pions.
  Phys. Rev. D. 01/2007; 75(1).
• Article: Observation of an excited charm baryon Omega c* decaying to Omega c0gamma.

  B Aubert, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We report the first observation of an excited singly charmed baryon Omega c* (css) in the radiative decay Omega c0gamma, where the Omega c0 baryon is reconstructed in the decays to the final states Omega(-)pi+, Omega(-)pi+pi0, Omega(-)pi+pi(-)pi+, and Xi(-)K(-)pi+pi+. This analysis is performed using a data set of 230.7 fb(-1) collected by the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The mass difference between the Omega c* and the Omega c0 baryons is measured to be 70.8+/-1.0(stat)+/-1.1(syst) MeV/c2. We also measure the ratio of inclusive production cross sections of Omega c* and Omega c0 in e+e(-) annihilation.
  Physical Review Letters 01/2007; 97(23):232001. · 7.37 Impact Factor
• Article: Observation of CP violation in B --> eta'K0 decays.

  B Aubert, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We present measurements of the time-dependent CP-violation parameters S and C in B(0) --> eta(')K(0) decays. The data sample corresponds to 384 x 10(6) BB pairs produced by e(+)e(-) annihilation at the Upsilon(4S). The results are S=0.58+/-0.10+/-0.03 and C=-0.16+/-0.07+/-0.03. We observe mixing-induced CP violation with a significance of 5.5 standard deviations in this b --> s penguin dominated mode.
  Physical Review Letters 01/2007; 98(3):031801. · 7.37 Impact Factor
• Source

  Available from: Shahriar Abachi

  Article: Observation of a new Ds meson decaying to DK at a mass of 2.86 GeV/c2.

  B Aubert, R Barate, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We observe a new D_{s} meson with mass (2856.6+/-1.5_{stat}+/-5.0_{syst}) MeV/c;{2} and width (48+/-7_{stat}+/-10_{syst}) MeV/c;{2} decaying into D0K+ and D;{+}K_{S};{0}. In the same mass distributions, we also observe a broad structure with mass (2688+/-4_{stat}+/-3_{syst}) MeV/c;{2} and width (112+/-7_{stat}+/-36_{syst}) MeV/c;{2}. To obtain this result, we use 240 fb;{-1} of data recorded by the BABAR detector at the PEP-II asymmetric-energy e;{+}e;{-} storage rings at the Stanford Linear Accelerator Center running at center-of-mass energies near 10.6 GeV.
  Physical Review Letters 01/2007; 97(22):222001. · 7.37 Impact Factor
• Article: Observation of B(+)-->phiphiK(+) and evidence for B(0)-->phiphiK(0) below eta(c) threshold.

  B Aubert, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We report measurements of the decays B(+)-->phiphiK(+) and B(0)-->phiphiK(0) using a sample of 231 x 10(6) BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The branching fractions are measured to be B(B(+)-->phiphiK(+))=(7.5+/-1.0(stat)+/-0.7(syst)) x 10(-6) and B(B(0)-->phiphiK(0))=(4.1(-1.4)(+1.7)(stat)+/-0.4(syst)) x 10(-6) for a phiphi invariant mass below 2.85 GeV/c(2).
  Physical Review Letters 12/2006; 97(26):261803. · 7.37 Impact Factor
• Article: Measurements of branching fraction, polarization, and charge asymmetry of B(+/-)-->rho(+/-)rho(0) and a search for B(+/-)-->rho(+/-)f(0)(980).

  B Aubert, M Bona, D Boutigny, F Couderc, Y Karyotakis, J P Lees, V Poireau, V Tisserand, A Zghiche, E Grauges, [......], J J Hollar, P E Kutter, B Mellado, A Mihalyi, Y Pan, M Pierini, R Prepost, S L Wu, Z Yu, H Neal
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  ABSTRACT: We measure the branching fraction (B), polarization (f(L)), and CP asymmetry (A(CP)) of B(+/-)-->rho(+/-)rho(0) decays and search for the decay B(+/-)-->rho(+/-)f(0)(980) based on a data sample of 231.8 x 10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. In B(+/-)-->rho(+/-)rho(0) decays we measure B=(16.8+/-2.2+/-2.3) x 10(-), f(L)=0.905+/-0.042(-0.027)(+0.023), and A(CP)=-0.12+/-0.13+/-0.10, and find an upper limit on the branching fraction of B(+/-)-->rho(+/-)f(0)(980)(-->pi(+)pi(-)) decays of 1.9 x 10(-6) at 90% confidence level.
  Physical Review Letters 12/2006; 97(26):261801. · 7.37 Impact Factor