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Related papers: BaBar: sin(2beta+gamma)

200 papers

We present a study of the decays B+ -> rho+ gamma, B0 -> rho0 gamma, and B0 -> omega gamma. The analysis is based on data containing 347 million BBbar events recorded with the BaBar detector at the PEP-II asymmetric B factory. We measure…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

We present results from an analysis of B0 -> rho+rho- using 232 million Upsilon(4S) decays collected with the BABAR detector at the PEP-II asymmetric-energy $B$ Factory at SLAC. We measure the longitudinal polarization fraction f_L = 0.978…

High Energy Physics - Experiment · Physics 2010-03-19 BABAR Collaboration , B. Aubert

Evidence is presented for the baryonic $B$ meson decay $\bar{B}\rightarrow D^0 \Lambda \bar{\Lambda}$ based on a data sample of $471 \times 10^6$ $B\bar{B}$ pairs collected with the {\it BABAR} detector at the PEP2 asymmetric $e^+e^-$…

High Energy Physics - Experiment · Physics 2014-06-11 The BABAR Collaboration , J. P. Lees , others

We present recent results of B and charm decays from the BaBar experiment. These results include searches for rare or forbidden charm decays, measurements of $|V_{ub}|$ from inclusive ${\bar B} \rightarrow X_u l {\bar \nu} $ decays,…

High Energy Physics - Experiment · Physics 2011-10-25 Fernando Palombo

We present branching fraction and CP asymmetry results for a variety of charmless B decays based on up to 124 fb^-1 collected by the BABAR experiment running near the Upsilon(4S) resonance at the PEP-II e+e- B-factory.

High Energy Physics - Experiment · Physics 2010-04-08 John J. Back

We report measurements of time-dependent CP asymmetries related to the CKM angle $\beta/\phi_1$, using decays of neutral B mesons to charmonium, open charm and in $b\to s$ loop processes. A preliminary measurement of time-dependent CP…

High Energy Physics - Experiment · Physics 2019-08-14 J. Ocariz

We present preliminary updated measurements of the CP-violating parameters $S_{\pi\pi}$ and $C_{\pi\pi}$ in $B^0\to\pi^+\pi^-$ decays. Using a sample of 227 million $\Upsilon(4S)\to B\bar{B}$ decays collected with the BaBar detector at the…

High Energy Physics - Experiment · Physics 2016-08-31 B. Aubert , BABAR Collaboration

We search for the decays B0->rho0rho0, B0->rho0f0, and B0->f0f0 in a sample of about 348 million Upsilon(4S)->BBbar decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We find evidence for…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

We present a preliminary measurement of CP-violating parameters S and C from fits of the time-dependence of B0 meson decays to eta'K0L. The data were recorded with the BABAR detector at PEP-II and correspond to 232 10^6 BBbar pairs produced…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert , BABAR Collaboration

We present a measurement of the direct CP violating asymmetry in the decay B0 -> K+pi- using 227 x 10^6 Y(4S) -> BBbar decays collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC, we observe a total signal…

High Energy Physics - Experiment · Physics 2008-11-26 BaBar Collaboration , B. Aubert

We present results for the branching fractions and charge asymmetries in $B^{\pm} \to h^{\pm} \pi^{0}$ (where $h^{\pm} = \pi^{\pm}, K^{\pm}$) and a search for the decay $B^{0} \to \pi^{0} \pi^{0}$ using a sample of approximately 88 million…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert

The (Delta I = 1) decay D_s^* --> Ds pi0 and (\Delta I = 0) decay D_s^* --> Ds gamma have been reconstructed using 90.4 fb^-1 of data recorded by the BaBar detector at the PEP-II asymmetric-energy e^+e^- collider. The relative branching…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

In this article I report on new and updated measurements of the CP-violating parameter beta (phi_1), which is related to the phase of the Cabibbo-Kobayashi-Maskawa (CKM) quark-mixing matrix of the electroweak interaction. Over the past few…

High Energy Physics - Experiment · Physics 2009-11-11 Rainer Bartoldus

We present a preliminary measurement of the CP asymmetry in singly Cabibbo-suppressed D+ -> K-K+\pi+ decays and in the resonant decays D+ -> \phi \pi+ and D+ -> K*0 K+. We use a data sample of 79.9 fb^{-1} recorded by the BABAR detector.…

High Energy Physics - Experiment · Physics 2012-08-03 BABAR Collaboration , B. Aubert

We present the results of a simulation study to perform the extraction of 2beta+gamma from B0->D+KsPi- decays through a time-dependent Dalitz analysis of BaBar data.

High Energy Physics - Experiment · Physics 2007-05-23 Francesco Polci , Marie-Helene Schune , Achille Stocchi

We present a study of the decays B- --> D*0 pi- and B- --> D*0 K-, where the D*0 decays into D0 pi0, with the D0 reconstructed in the CP eigenstates K- K+ and pi- pi+ and in the (non-CP) channels K- pi+, K- pi+ pi+ pi-, and K- pi+ pi0. We…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

We report the observation of the decay $B^- \to D_{\pi^+\pi^-\pi^0} K^-$, where $D_{\pi^+\pi^-\pi^0}$ indicates a neutral $D$ meson detected in the final state $\pi^+\pi^-\pi^0$, excluding $K_S \pi^0$. This doubly Cabibbo-suppressed decay…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

We measure the branching fraction of the radiative B- decay B(B- -> phi K- gamma) = (3.46 +/- 0.57^{+0.39}_{-0.37}) 10^-6, and set an upper limit on the radiative B0 decay B(B0 -> phi K0 gamma) < 2.71 10^-6 at 90% confidence level. We also…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

We measure the time-dependent $CP$ asymmetry in the radiative-penguin decay $B^0 \to {{K^0_{S}}} \pi^- \pi^+ \gamma$, using a sample of $471$ million $\Upsilon(4S) \to B{\kern 0.18em\overline{\kern -0.18em B}}$ events recorded with the…

High Energy Physics - Experiment · Physics 2016-04-06 P. del Amo Sanchez , others

We present updated 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 60 million Y(4S) to BB…

High Energy Physics - Experiment · Physics 2007-05-23 P. D. Dauncey