Recent results in light quark meson spectroscopy from Fermilab experiment E760

none67Fermilab experiment E760 light-quark meson spectroscopy data for proton-antiproton annihilation to 3 pi0, 2pi0 eta, pi0 2eta and 3eta in-flight have confirmed the 1500 MeV state at rest seen previously at CERN.noneT.ARMSTRONG; D.BETTONI; V.BHARADWAJ; C.BIINO; G.BORREANI; D.BROEMMELSIEK; A.BUZZO; R.CALABRESE; A.CECCUCCI; R.CESTER; M.CHURCH; P.DALPIAZ; P.FERRETTI DALPIAZ; R.DIBENEDETTO; D. DIMITROYANNIS; M.G. FABBRI; J.E.FAST; S.FERRONI; A.GIANOLI; C.M.GINSBURG; K.E.GOLLWITZER; A.A.HAHN; M.A.HASAN; S.Y.HSUEH; R.LEWIS; E.LUPPI; M.MACRI'; A.MAJEWSKA; M.MANDELKERN; F.MARCHETTO; M.MARINELLI; J.MARQUES; W.MARSCH; M.MARTINI; M.MASUZAWA; E.MENICHETTI; A.MIGLIORI; R.MUSSA; S.PALESTINI; N.PASTRONE; C.PATRIGNANI; J.PEOPLES JR.; L.PESANDO; F. PETRUCCI; M.G.PIA; S.PORDES; P.RAPIDIS; R.RAY; J.REID; G.RINAUDO; B.ROCCUZZO; J.L.ROSEN; A.SANTRONI; M.SARMIENTO; M.SAVRIE\'; A.SCALISI; J.SCHULTZ; K.K.SETH; A.SMITH; G.A.SMITH; M.SOZZI; S.TROKENHEIM; M.F.WEBER; S.WERKEMA; Y. ZHANG; J.L. ZHAO; G. ZIOULAST., Armstrong; Bettoni, Diego; V., Bharadwaj; C., Biino; G., Borreani; D., Broemmelsiek; A., Buzzo; Calabrese, Roberto; A., Ceccucci; R., Cester; M., Church; Dalpiaz, Pietro; Ferretti, Paola; R., Dibenedetto; D., Dimitroyannis; M. G., Fabbri; J. E., Fast; S., Ferroni; Gianoli, Alberto; C. M., Ginsburg; K. E., Gollwitzer; A. A., Hahn; M. A., Hasan; S. Y., Hsueh; R., Lewis; Luppi, Eleonora; M., Macri'; A., Majewska; M., Mandelkern; F., Marchetto; M., Marinelli; J., Marques; W., Marsch; M., Martini; M., Masuzawa; E., Menichetti; A., Migliori; R., Mussa; S., Palestini; N., Pastrone; C., Patrignani; J. PEOPLES J., R.; L., Pesando; Petrucci, Ferruccio Carlo; M. G., Pia; S., Pordes; P., Rapidis; R., Ray; J., Reid; G., Rinaudo; B., Roccuzzo; J. L., Rosen; A., Santroni; M., Sarmiento; Savrie', Mauro; A., Scalisi; J., Schultz; K. K., Seth; A., Smith; G. A., Smith; M., Sozzi; S., Trokenheim; M. F., Weber; S., Werkema; Y., Zhang; J. L., Zhao; G., Zioula

First measurements of the total proton-proton cross section at the LHC energy of 1as =7TeV

TOTEM has measured the differential cross-section for elastic proton-proton scattering at the LHC energy of analysing data from a short run with dedicated large-\u3b2* optics. A single exponential fit with a slope B=(20.1\ub10.2stat\ub10.3syst) GeV 122 describes the range of the four-momentum transfer squared |t| from 0.02 to 0.33 GeV2. After the extrapolation to |t|=0, a total elastic scattering cross-section of (24.8\ub10.2stat\ub11.2syst) mb was obtained. Applying the optical theorem and using the luminosity measurement from CMS, a total proton-proton cross-section of (98.3\ub10.2stat\ub12.8syst) mb was deduced which is in good agreement with the expectation from the overall fit of previously measured data over a large range of center-of-mass energies. From the total and elastic pp cross-section measurements, an inelastic pp cross-section of was inferred

Measurements of Branching Fractions and Dalitz Distributions for B0→D(*)±K0π∓ Decays

We present measurements of the branching fractions for the three-body decays B0→D(*)∓K0π± and their resonant submodes B0→D(*)∓K*± using a sample of approximately 88×106 BB̅ pairs collected by the BABAR detector at the SLAC PEP-II asymmetric energy storage ring. We measure: B(B0→D∓K0π±)=(4.9±0.7stat±0.5syst)×10-4, B(B0→D*∓K0π±)=(3.0±0.7stat±0.3syst)×10-4, B(B0→D∓K*±)=(4.6±0.6stat±0.5syst)×10-4, B(B0→D*∓K*±)=(3.2±0.6stat±0.3syst)×10-4. From these measurements we determine the fractions of resonant events to be f(B0→D∓K*±)=0.63±0.08stat±0.04syst and f(B0→D*∓K*±)=0.72±0.14stat±0.05syst

Search for the Rare Decays B0→Ds(∗)+a0(2)−B^0 \to D_s^{(*)+} a_{0(2)}^-

8 pages, 8 postscript figures, submitted to PRD-RCWe have searched for the decays $B^0 \rightarrow D_s^{+}a_0^-$, $B^0 \rightarrow D_s^{*+}a_0^-$, $B^0 \rightarrow D_s^{+}a_2^-$ and $B^0 \rightarrow D_s^{*+}a_2^-$ in a sample of about 230 million $\Upsilon(4S) \rightarrow B{\bar B}$ decays collected with the {\sl BaBar} detector at the PEP-II asymmetric-energy $B$-factory at SLAC. We find no evidence for these decays and set upper limits at 90\% C.L. on the branching fractions: ${\cal B}(B^0 \rightarrow D_s^+ a_0^-) < 1.9\times 10^{-5}$, ${\cal B}(B^0 \rightarrow D_s^{*+} a_0^-) < 3.6\times 10^{-5}$, ${\cal B}(B^0 \rightarrow D_s^+ a_2^-) < 1.9 \times 10^{-4}$, and ${\cal B}(B^0 \rightarrow D_s^{*+} a_2^-) < 2.0\times 10^{-4}$

Measurement of the Branching Fractions and CP Asymmetry of B-→D(CP)0K- Decays with the BABAR Detector

The measurement of R, Rcp+, and Acp+ were presented. B- → D° K-decays with D° mesons decaying to non-CP and CP-even eigenstates were reconstructed. It was observed that the charged-particle tracking was provided by a five-layer silicon vertex tracker (SVT). It was shown that the parametrization of the particle identication PDF was performed by fitting with a Gaussian distribution

Search for Lepton Flavor Violation in the Decay τ^{±}→μ^{±}γ

A search for the nonconservation of lepton flavor number in the decay τ±→μ±γ has been performed using 2.07×108 e+e-→τ+τ- events produced at a center-of-mass energy near 10.58 GeV with the BABAR detector at the PEP-II storage ring. We find no evidence for a signal and set an upper limit on the branching ratio of B(τ±→μ±γ)<6.8×10-8 at 90% confidence level

Measurement of D-s(+) and D-s(*+) production in B meson decays and from continuum e(+)e(-) annihilation at root s=10.6 GeV

New measurements of D-s(+) and D-s(*+) meson production rates from B decays and from q(q) over bar continuum events near the Y(4S) resonance are presented. Using 20.8 fb(-1) of data on the Y(4S) resonance and 2.6 fb(-1) off-resonance, we find the inclusive branching fractions B(B-->Ds+X) = (10.93+/-0.19+/-0.58+/-2.73)% and B(B-->Ds*+X) = (7.9+/-0.8+/-0.7+/-2.0)%, where the first error is statistical, the second is systematic, and the third is due to the D-s(+)-->phipi(+) branching fraction uncertainty. The production cross sections sigma(e(+)e(-)-->Ds+X)xB(D-s(+)-->phipi(+)) = 7.55+/-0.20+/-0.34 pb and sigma(e(+)e(-)-->Ds*+/-X)xB(D-s(+)-->phipi(+)) = 5.8+/-0.7+/-0.5 pb are measured at center-of-mass energies about 40 MeV below the Y(4S) mass. The branching fractions SigmaB(B-->D-s((*)+)(D) over bar ((*))) = (5.07+/-0.14+/-0.30+/-1.27)% and SigmaB(B-->D-s(*+)(D) over bar ((*))) = (4.1+/-0.2+/-0.4+/-1.0)% are determined from the D-s((*)+) momentum spectra. The mass difference m(D-s(+)) -m(D+) = 98.4+/-0.1+/-0.3 MeV/c(2) is also measured