Date: Thu, 28 Aug 08 00:00:23 GMT Subject: hep-ex daily 4 new + 1 crosses received by eprepget ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Send any complaints regarding submissions directly to submitter. ------------------------------------------------------------------------------ Point your www client at http://arXiv.org/ To unsubscribe, e-mail To: hep-ex@arXiv.org, Subject: cancel ------------------------------------------------------------------------------ received by eprepget from Tue 26 Aug 08 20:00:02 GMT to Wed 27 Aug 08 20:00:03 GMT ------------------------------------------------------------------------------ \\ arXiv:0808.3586 Date: Tue, 26 Aug 2008 20:54:19 GMT (192kb) Title: Time-dependent and time-integrated angular analysis of $B\to\varphi K^0_S\pi^0$ and $\varphi K^\pm\pi^\mp$ Authors: The BABAR Collaboration: B. Aubert, et al Categories: hep-ex Comments: 30 pages, 15 figures, submitted to PRD Report-no: BABAR-pub-08/036, SLAC-PUB-13337 \\ We perform a time-dependent and time-integrated angular analysis of the decays $B^0\to\varphi K^{*}(892)^0$, $\varphi K^{*}_2(1430)^0$, and $\varphi(K\pi)^{*0}_{0}$ with the final sample of about 465 million $\BB$ pairs recorded with the $\babar$ detector. Twenty-four parameters are investigated, including the branching fractions, CP-violation parameters, and parameters sensitive to final-state interactions. We use the dependence on the $K\pi$ invariant mass of the interference between the scalar and vector or tensor components to resolve discrete ambiguities of the strong and weak phases. We use the time-evolution of the $B\to\varphi K^0_S\pi^0$ channel to extract the CP-violation phase difference $\Delta\phi_{00}=0.28\pm0.42\pm 0.04$ between the $B$ and $\Bbar$ decay amplitudes. When the $B\to\varphi K^\pm\pi^\mp$ channel is included, the fractions of longitudinal polarization ${f_L}$ of the vector-vector and vector-tensor decay modes are measured to be $0.494\pm0.034\pm0.013$ and $0.901^{+0.046}_{-0.058}\pm 0.037$, respectively. This polarization pattern requires the presence of a positive-helicity amplitude in the vector-vector decay from a currently unknown source. \\ ( http://arxiv.org/abs/0808.3586 , 192kb) ------------------------------------------------------------------------------ \\ arXiv:0808.3650 Date: Wed, 27 Aug 2008 08:26:24 GMT (2377kb) Title: Study of intermediate two-body decays in $\bar{B}^0\to \Sigma_c(2455)^{0}\bar{p}\pi^{+}$ Authors: Belle collaboration: H.O.Kim, et al. Categories: hep-ex Comments: 15 pages, 7 figures, submitted to Physics Letters B Report-no: Belle Preprint 2008-23, KEK Preprint 2008-23 \\ We present results of a detailed study of the three-body $\bar{B}^0\to\Sigma_c(2455)^{0}\bar{p}\pi^{+}$ decay. A significant enhancement of signal events is observed in the $\bar{p}\pi^+$ mass system near $1.5 {\rm GeV}/c^2$ that is consistent with the presence of an intermediate baryonic resonance $\bar{N}^0$, where $\bar{N}^0$ is the $\bar{N}(1440)^0 P_{11}$ or $\bar{N}(1535)^0 S_{11}$ state, or an admixture of the two states. We measure the product ${\cal B}(\bar{B}^0\to\Sigma_c(2455)^{0}\bar{N}^0)\times{\cal B}(\bar{N}^0\to\bar{p}\pi^+)$= ($0.80\pm0.15\rm{(stat.)}\pm0.14\rm{(syst.)}\pm0.21$)$\times10^{-4}$, where the last error is due to the uncertainty in ${\cal B}(\Lambda_c^+\to p K^-\pi^+)$. The significance of the signal is 6.1 standard deviations. This analysis is based on a data sample of 357 fb$^{-1}$, accumulated at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. \\ ( http://arxiv.org/abs/0808.3650 , 2377kb) ------------------------------------------------------------------------------ \\ arXiv:0808.3663 Date: Wed, 27 Aug 2008 09:38:16 GMT (20kb) Title: Recent HERA Results on Leptoquarks and other SUSY-related Signatures Authors: Stefan Schmitt Categories: hep-ex Comments: SUSY08 conference proceedings \\ The HERA ep collider and the experiments H1 and ZEUS operated from 1994-2007. A total integrated luminosity of almost 1 fb^-1 was collected at centre-of-mass energies up to 320 GeV. Results from searches for leptoquarks and squarks, final states with an isolated lepton and missing transverse momentum and final states with multi-leptons are presented. The leptoquark limits are interpreted in terms of limits on squark production in SUSY models with R-parity violating couplings. \\ ( http://arxiv.org/abs/0808.3663 , 20kb) ------------------------------------------------------------------------------ \\ arXiv:0808.3677 Date: Wed, 27 Aug 2008 11:58:08 GMT (39kb) Title: Study of \Omega_c^0 and \Omega_c^{*0} Baryons at Belle Authors: E.Solovieva, R.Chistov, et al., for the Belle Collaboration Categories: hep-ex Comments: 11 pages, 5 figures, prepared for 34th International Conference on High Energy Physics (ICHEP 08), Philadelphia, PA, 29 Jul - 5 Aug 2008 Report-no: BELLE-CONF-0851 \\ We report results from a study of the charmed double strange baryons \Omega_c^0 and \Omega_c^{*0} at Belle. The \Omega_c^0 is reconstructed using the \Omega_c^0 --> \Omega^- \pi^+ decay mode, and its mass is measured to be (2693.6 \pm 0.3 {+1.8 \atop -1.5}) MeV/c^2. The \Omega_c^{*0} baryon is reconstructed in the \Omega_c^0 \gamma mode. The mass difference M_{\Omega_c^{*0}} - M_{\Omega_c^0} is measured to be (70.7 \pm 0.9 {+0.1 \atop -0.9}) MeV/c^2. The analysis is performed using 673 fb^{-1} of data on and near the \Upsilon(4S) collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. \\ ( http://arxiv.org/abs/0808.3677 , 39kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:0808.3527 (*cross-listing*) Date: Tue, 26 Aug 2008 14:37:40 GMT (178kb) Title: The influence of direct $D$-meson production to the determination on the nucleon strangeness asymmetry via dimuon events in neutrino experiments Authors: Puze Gao, Bo-Qiang Ma Categories: hep-ph hep-ex Comments: 9 latex pages, 7 figures \\ Experimentally, the production of oppositely charged dimuon events by neutrino and anti-neutrino deep inelastic scattering (DIS) is used to determine the strangeness asymmetry inside a nucleon. Here we point out that the direct production of $D$-meson in DIS may make substantial influence to the measurement of nucleon strange distributions. The direct $D$-meson production is via the heavy quark recombination (HQR) and via the light quark fragmentation from perturbative QCD (LQF-P). To see the influence precisely, we compute the direct $D$-meson productions via HQR and LQF-P quantitatively and estimate their corrections to the analysis of the strangeness asymmetry. The results show that HQR has stronger effect than LQF-P does, and the former may influence the experimental determination of the nucleon strangeness asymmetry. \\ ( http://arxiv.org/abs/0808.3527 , 178kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:0805.2262 replaced with revised version Wed, 27 Aug 2008 14:45:34 GMT (407kb) Title: Search for the decay K_S->e+e- Authors: Flavio Archilli, for KLOE Collaboration Categories: hep-ex Comments: 4 pages, 4 figures, to appear in the proceedings of 43rd Rencontres de Moriond EW, La Thuile, Italy, 1-8 March 2008 \\ ( http://arxiv.org/abs/0805.2262 , 407kb) ------------------------------------------------------------------------------ \\ arXiv:0806.3140 (*cross-listing*) replaced with revised version Wed, 27 Aug 2008 02:26:26 GMT (144kb) Title: Possible contributions to $e^+e^- \to J/\psi + \eta_c$ due to intermediate meson rescatterings Authors: Yuan-Jiang Zhang, Qiang Zhao, and Cong-Feng Qiao Categories: hep-ph hep-ex Comments: revised version to appear in Phys. Rev. D \\ ( http://arxiv.org/abs/0806.3140 , 144kb) ------------------------------------------------------------------------------ \\ arXiv:0807.2170 replaced with revised version Wed, 27 Aug 2008 07:44:34 GMT (50kb) Title: Observation of $B^{\pm} \to \psi(2S) \pi^{\pm}$ and search for direct CP-violation Authors: V.Bhardwaj, R.Kumar, J.B.Singh, et al, for the Belle Collaboration Categories: hep-ex Comments: 6 pages, 3 figures, submitted to PRD(RC) Report-no: Belle Preprint 2008-20, KEK Preprint 2008-18 \\ ( http://arxiv.org/abs/0807.2170 , 50kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- For subscribe options to combined physics archives, e-mail To: physics@arXiv.org, Subject: subscribe ----------------------------------------------------------------------------- For help on viewing and making submissions, see http://arXiv.org/help/ For a list of archive mirror sites, see http://arXiv.org/servers.html ----------------------------------------------------------------------------- Third-party submissions cause excessive problems. 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