B. Xin

Publications (195)242.14 Total impact

• Article: Improved measurement of absolute branching fraction of Ds+→τ+ντ

  P. U. E. Onyisi, J. L. Rosner, J. P. Alexander, D. G. Cassel, J. E. Duboscq, R. Ehrlich, L. Fields, R. S. Galik, L. Gibbons, R. Gray, [......], P. Naik, J. Rademacker, D. M. Asner, K. W. Edwards, J. Reed, A. N. Robichaud, G. Tatishvili, E. J. White, R. A. Briere, H. Vogel
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  ABSTRACT: We have studied the leptonic decay Ds+→τ+ντ, via the decay channel τ+→e+νeν̅ τ, using a sample of tagged Ds+ decays collected near the Ds*±Ds∓ peak production energy in e+e- collisions with the CLEO-c detector. We obtain B(Ds+→τ+ντ)=(5.30±0.47±0.22)% and determine the decay constant fDs=(252.5±11.1±5.2) MeV, where the first uncertainties are statistical and the second are systematic.
  Phys. Rev. D. 03/2009; 79(5).
• Article: Study of D0→π-e+νe, D+→π0e+νe, D0→K-e+νe, and D+→ Kmacr 0e+νe in tagged decays of the ψ(3770) resonance

  J. Y. Ge, D. H. Miller, V. Pavlunin, B. Sanghi, I. P. J. Shipsey, B. Xin, G. S. Adams, D. Hu, B. Moziak, J. Napolitano, [......], B. J. Y. Tan, A. Tomaradze, J. Libby, L. Martin, A. Powell, G. Wilkinson, W. Love, V. Savinov, H. Mendez, CLEO Collaboration
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  ABSTRACT: Using ψ(3770)→D Dmacr events collected with the CLEO-c detector at the Cornell e+e- storage ring, tagged by fully reconstructing one D meson in a hadronic decay mode, we measure absolute branching fractions and differential decay rates for D0→π-e+νe, D+→π0e+νe, D0→K-e+νe, and D+→ Kmacr 0e+νe. The measured decay rates are used to study semileptonic form factors governing these transitions and to test unquenched Lattice QCD (LQCD) calculations. We average our results with previously published CLEO-c measurements of the same quantities using a neutrino reconstruction technique. Combining LQCD calculations of form factor absolute normalizations f+(0) and measurements of f+π(0)|Vcd| and f+K(0)|Vcs|, we find |Vcd|=0.222(8)(3)(23) and |Vcs|=1.018(10)(8)(106), where the uncertainties are statistical, experimental systematic, and from LQCD, respectively.
  Physical review D: Particles and fields 02/2009; 79(5):52010.
• Article: J/psi and psi(2S) Radiative Transitions to eta_{c}.

  R E Mitchell, M R Shepherd, D Besson, T K Pedlar, D Cronin-Hennessy, K Y Gao, J Hietala, Y Kubota, T Klein, B W Lang, [......], R Patel, J Yelton, P Rubin, B I Eisenstein, I Karliner, S Mehrabyan, N Lowrey, M Selen, E J White, J Wiss
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  ABSTRACT: Using 2.45x10;{7} psi(2S) decays collected with the CLEO-c detector at the Cornell Electron Storage Ring we present the most precise measurements of magnetic dipole transitions in the charmonium system. We measure B(psi(2S)-->gammaeta_{c})=(4.32+/-0.16+/-0.60)x10;{-3}, B(J/psi-->gammaeta_{c})/B(psi(2S)-->gammaeta_{c})=4.59+/-0.23+/-0.64, and B(J/psi-->gammaeta_{c})=(1.98+/-0.09+/-0.30)%. We observe a distortion in the eta_{c} line shape due to the photon-energy dependence of the magnetic dipole transition rate. We find that measurements of the eta_{c} mass are sensitive to the line shape, suggesting an explanation for the discrepancy between measurements of the eta_{c} mass in radiative transitions and other production mechanisms.
  Physical Review Letters 02/2009; 102(1):011801. · 7.37 Impact Factor
• Article: Observation of eta' decays to pi+pi-pi0 and pi+pi-e+e-.

  P Naik, J Rademacker, D M Asner, K W Edwards, J Reed, A N Robichaud, G Tatishvili, R A Briere, H Vogel, P U E Onyisi, [......], N Sultana, T Skwarnicki, S Stone, J C Wang, L M Zhang, G Bonvicini, D Cinabro, M Dubrovin, A Lincoln, K M Ecklund
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  ABSTRACT: Using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector at the CESR e;{+}e;{-} collider, we make the first observations of the decays eta;{'}-->pi;{+}pi;{-}pi;{0} and eta;{'}-->pi;{+}pi;{-}e;{+}e;{-}, measuring absolute branching fractions (37_{-9};{+11}+/-4)x10;{-4} and (25_{-9};{+12}+/-5)x10;{-4}, respectively. For eta;{'}-->pi;{+}pi;{-}pi;{0}, this result probes the mechanism of isospin violation and the roles of pi;{0}/eta/eta;{'}-mixing and final state rescattering in strong decays. We also set upper limits on branching fractions for eta;{'} decays to pi;{+}pi;{-}micro;{+}micro;{-}, 2(pi;{+}pi;{-}), pi;{+}pi;{-}2pi;{0}, 2(pi;{+}pi;{-})pi;{0}, 3(pi;{+}pi;{-}), and invisible final states.
  Physical Review Letters 02/2009; 102(6):061801. · 7.37 Impact Factor
• Article: Observation of D+ --> etae + nue.

  R E Mitchell, M R Shepherd, D Besson, T K Pedlar, D Cronin-Hennessy, K Y Gao, J Hietala, Y Kubota, T Klein, B W Lang, [......], J Yelton, P Rubin, C Cawlfield, B I Eisenstein, I Karliner, D Kim, N Lowrey, M Selen, E J White, J Wiss
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  ABSTRACT: Using a 281 pb-1 data sample collected at the psi(3770) resonance with the CLEO-c detector at the Cornell Electron Storage Ring, we report the first observation of D+ --> etae + nue. We also set upper limits for D+ --> eta'e + nue and D + --> varphie + nue that are about 2 orders of magnitude more restrictive than those obtained by previous experiments.
  Physical Review Letters 02/2009; 102(8):081801. · 7.37 Impact Factor
• Article: Inclusive χbJ(nP) decays to D0X

  R. A. Briere, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, J. P. Alexander, D. G. Cassel, J. E. Duboscq, R. Ehrlich, [......], L. M. Zhang, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, P. Naik, J. Rademacker, D. M. Asner, K. W. Edwards, J. Reed
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  ABSTRACT: Using Υ(2S) and Υ(3S) data collected with the CLEO III detector we have searched for decays of χbJ to final states with open charm. We fully reconstruct D0 mesons with pD0>2.5 GeV/c in three decay modes (K-π+, K-π+π0, and K-π-π+π+) in coincidence with radiative transition photons that tag the production of one of the χbJ(nP) states. Significant signals are obtained for the two J=1 states. Recent nonrelativistic QCD (NRQCD) calculations of χbJ(nP)→cc̅ X depend on one nonperturbative parameter per χbJ triplet. The extrapolation from the observed D0X rate over a limited momentum range to a full cc̅ X rate also depends on these same parameters. Using our data to fit for these parameters, we extract results which agree well with NRQCD predictions, confirming the expectation that charm production is largest for the J=1 states. In particular, for J=1, our results are consistent with cc̅ g accounting for about one-quarter of all hadronic decays.
  Phys. Rev. D. 11/2008; 78(9).
• Article: First observation of exclusive χcJ decays to two charged and two neutral hadrons

  Q. He, J. Insler, H. Muramatsu, C. S. Park, E. H. Thorndike, F. Yang, M. Artuso, S. Blusk, S. Khalil, J. Li, [......], B. Sanghi, I. P. J. Shipsey, B. Xin, G. S. Adams, M. Anderson, J. P. Cummings, I. Danko, D. Hu, B. Moziak, J. Napolitano
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  ABSTRACT: We study exclusive χc0,1,2 decays to four-hadron final states involving two charged and two neutral hadrons: π+π-π0π0, K+K-π0π0, pp̅ π0π0, K+K-ηπ0, and K±π∓K0π0. The χc states are produced in radiative decays of 3.08×106 ψ(2S) resonance decays and observed in the CLEO detector. We also measure the largest substructure contributions to the modes π+π-π0π0 and K±π∓K0π0.
  Phys. Rev. D. 11/2008; 78(9).
• Article: Observation of Upsilon(2S)-->etaUpsilon(1S) and search for related transitions.

  Q He, J Insler, H Muramatsu, C S Park, E H Thorndike, F Yang, M Artuso, S Blusk, S Khalil, J Li, [......], D H Miller, I P J Shipsey, B Xin, G S Adams, M Anderson, J P Cummings, I Danko, D Hu, B Moziak, J Napolitano
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  ABSTRACT: We report the first observation of Upsilon(2S)-->etaUpsilon(1S), with a branching fraction B=(2.1(-0.6)+0.7(stat)+/-0.3(syst)) x 10(-4) and a statistical significance 5.3sigma. Data were acquired with the CLEO III detector at the CESR e+e(-) symmetric collider. This is the first process observed involving a b-quark spin flip. For related transitions, 90% confidence limits in units of 10(-4) are B(Upsilon(2S)-->pi0Upsilon(1S)) < 1.8, B(Upsilon(3S)-->etaUpsilon(1S)) < 1.8, B(Upsilon(3S)-->pi0Upsilon(1S)) < 0.7, and B(Upsilon(3S)-->pi0Upsilon(2S)) < 5.1.
  Physical Review Letters 11/2008; 101(19):192001. · 7.37 Impact Factor
• Source

  Available from: Todd Pedlar

  Article: Search for lepton flavor violation in upsilon decays.

  W Love, V Savinov, A Lopez, S Mehrabyan, H Mendez, J Ramirez, G S Huang, D H Miller, V Pavlunin, B Sanghi, [......], B W Lang, R Poling, A W Scott, A Smith, P Zweber, S Dobbs, Z Metreveli, K K Seth, A Tomaradze, K M Ecklund
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  ABSTRACT: In this Letter, we describe a search for lepton flavor violation (LFV) in the bottomonium system. We search for leptonic decays Upsilon(nS)-->mutau (n=1, 2, and 3) using the data collected with the CLEO III detector. We identify the tau lepton using its leptonic decay nu_{tau}nu[over ]_{e}e and utilize multidimensional likelihood fitting with probability density function shapes measured from independent data samples. We report our estimates of 95% C.L. upper limits on LFV branching fractions of Upsilon mesons. We interpret our results in terms of the exclusion plot for the energy scale of a hypothetical new interaction versus its effective LFV coupling in the framework of effective field theory.
  Physical Review Letters 11/2008; 101(20):201601. · 7.37 Impact Factor
• Source

  Available from: N. Sultana

  Article: Precision measurement of the mass of the hc(1P1) state of charmonium.

  S Dobbs, Z Metreveli, K K Seth, A Tomaradze, J Libby, A Powell, G Wilkinson, K M Ecklund, W Love, V Savinov, [......], T K Pedlar, D Cronin-Hennessy, K Y Gao, J Hietala, Y Kubota, T Klein, B W Lang, R Poling, A W Scott, P Zweber
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  ABSTRACT: A precision measurement of the mass of the h_{c}(1P1) state of charmonium has been made using a sample of 24.5x10;{6} psi(2S) events produced in e;{+}e;{-} annihilation at the Cornell Electron Storage Ring (CESR). The reaction used was psi(2S)-->pi;{0}h_{c}, pi;{0}-->gammagamma, h_{c}-->gammaeta_{c}, and the reaction products were detected in the CLEO-c detector. Data have been analyzed both for the inclusive reaction and for the exclusive reactions in which eta_{c} decays are reconstructed in 15 hadronic decay channels. Consistent results are obtained in the two analyses. The averaged results of the present measurements are M(h_{c})=3525.28+/-0.19(stat.)+/-0.12(syst.) MeV, and B(psi(2S)-->pi;{0}h_{c})xB(h_{c}-->gammaeta_{c})=(4.19+/-0.32+/-0.45)x10;{-4}. Using the ;{3}P_{J} centroid mass, DeltaM_{hf}(1P) identical withM(chi_{cJ})-M(h_{c})=+0.02+/-0.19+/-0.13 MeV.
  Physical Review Letters 10/2008; 101(18):182003. · 7.37 Impact Factor
• Article: Measurement of the eta'-meson mass using J/psi-->gammaeta'.

  J Libby, L Martin, A Powell, G Wilkinson, K M Ecklund, W Love, V Savinov, H Mendez, J Y Ge, D H Miller, [......], Y Kubota, T Klein, B W Lang, R Poling, A W Scott, P Zweber, S Dobbs, Z Metreveli, K K Seth, A Tomaradze
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  ABSTRACT: We measure the mass of the eta;{'} meson using psi(2S)-->pi;{+}pi;{-}J/psi, J/psi-->gammaeta;{'} events acquired with the CLEO-c detector operating at the CESR e;{+}e;{-} collider. Using three decay modes, eta;{'}-->rho;{0}gamma, eta;{'}-->pi;{+}pi;{-}eta with eta-->gammagamma, and eta;{'}-->pi;{+}pi;{-}eta with eta-->pi;{+}pi;{-}pi;{0}, we find M_{eta;{'}}=957.793+/-0.054+/-0.036 MeV, in which the uncertainties are statistical and systematic, respectively. This result is consistent with but substantially more precise than the current world average.
  Physical Review Letters 10/2008; 101(18):182002. · 7.37 Impact Factor
• Article: Observation of chicJ radiative decays to light vector mesons.

  J V Bennett, R E Mitchell, M R Shepherd, D Besson, T K Pedlar, D Cronin-Hennessy, K Y Gao, J Hietala, Y Kubota, T Klein, [......], R Patel, J Yelton, P Rubin, B I Eisenstein, I Karliner, S Mehrabyan, N Lowrey, M Selen, E J White, J Wiss
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  ABSTRACT: Using a total of 2.74 x 10(7) decays of the psi(2S) collected with the CLEO-c detector, we present a study of chi(cJ)-->gammaV, where V=rho(0), omega, phi. The transitions chi(c1)-->gammarho(0 and chi(c1)-->gammaomega are observed with B(chi(c1)-->gammarho(0))=(2.43+/-0.19+/-0.22) x 10(-4) and B(chi(c1)-->gammaomega)=(8.3+/-1.5+/-1.2) x 10(-5). In the chi(c1)-->gammarho(0) transition, the final state meson is dominantly longitudinally polarized. Upper limits on the branching fractions of other chi(cJ) states to light vector mesons are presented.
  Physical Review Letters 10/2008; 101(15):151801. · 7.37 Impact Factor
• Article: Search for very light CP-odd Higgs Boson in radiative decays of Upsilon(1S).

  W Love, V Savinov, H Mendez, J Y Ge, D H Miller, I P J Shipsey, B Xin, G S Adams, M Anderson, J P Cummings, [......], P Zweber, S Dobbs, Z Metreveli, K K Seth, A Tomaradze, J Libby, L Martin, A Powell, G Wilkinson, K M Ecklund
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  ABSTRACT: We search for a non-SM-like CP-odd Higgs boson (a(1)(0)) decaying to tau(+)tau(-) or mu(+)mu(-) in radiative decays of the Upsilon(1S). No significant signal is found, and upper limits on the product branching ratios are set. Our tau(+)tau(-) results are almost 2 orders of magnitude more stringent than previous upper limits. Our data provide no evidence for a Higgs state with a mass of 214 MeV decaying to mu(+)mu(-), previously proposed as an explanation for 3 Sigma(+)-->pmu(+)mu(-) events observed by the HyperCP experiment. Our results constrain NMSSM models.
  Physical Review Letters 10/2008; 101(15):151802. · 7.37 Impact Factor
• Article: Precision measurement of B(D+→μ+ν) and the pseudoscalar decay constant fD+

  B. I. Eisenstein, I. Karliner, S. Mehrabyan, N. Lowrey, M. Selen, E. J. White, J. Wiss, R. E. Mitchell, M. R. Shepherd, D. Besson, [......], A. Ryd, A. J. Sadoff, X. Shi, S. Stroiney, W. M. Sun, T. Wilksen, S. B. Athar, R. Patel, J. Yelton, P. Rubin
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  ABSTRACT: We measure the branching ratio of the purely leptonic decay of the D+ meson with unprecedented precision as B(D+→μ+ν)=(3.82±0.32±0.09)×10-4, using 818 pb-1 of data taken on the ψ(3770) resonance with the CLEO-c detector at the CESR collider. We use this determination to derive a value for the pseudoscalar decay constant fD+, combining with measurements of the D+ lifetime and assuming |Vcd|=|Vus|. We find fD+=(205.8±8.5±2.5) MeV. The decay rate asymmetry Γ(D+→μ+ν)-Γ(D-→μ-ν̅ )/Γ(D+→μ+ν)+Γ(D-→μ-ν̅ )=0.08±0.08, consistent with no CP violation. We also set 90% confidence level upper limits on B(D+→τ+ν)<1.2×10-3 and B(D+→e+ν)<8.8×10-6.
  Phys. Rev. D. 09/2008; 78(5).
• Article: Observation of J/psi-->3gamma.

  G S Adams, M Anderson, J P Cummings, I Danko, D Hu, B Moziak, J Napolitano, Q He, J Insler, H Muramatsu, [......], A Powell, G Wilkinson, K M Ecklund, W Love, V Savinov, H Mendez, J Y Ge, D H Miller, I P J Shipsey, B Xin
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  ABSTRACT: We report the first observation of the decay J/psi-->3gamma. The signal has a statistical significance of 6sigma and corresponds to a branching fraction of B(J/psi-->3gamma)=(1.2+/-0.3+/-0.2)x10;{-5}, in which the errors are statistical and systematic, respectively. The measurement uses psi(2S)-->pi;{+}pi;{-}J/psi events acquired with the CLEO-c detector operating at the CESR e;{+}e;{-} collider.
  Physical Review Letters 09/2008; 101(10):101801. · 7.37 Impact Factor
• Article: Determination of the D0→K+π- relative strong phase using quantum-correlated measurements in e+e-→D0D̅ 0 at CLEO

  D. M. Asner, K. W. Edwards, P. Naik, R. A. Briere, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, J. P. Alexander, [......], N. Sultana, T. Skwarnicki, S. Stone, J. C. Wang, L. M. Zhang, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, J. Rademacker
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  ABSTRACT: We exploit the quantum coherence between pair-produced D0 and D̅ 0 in ψ(3770) decays to study charm mixing, which is characterized by the parameters x and y, and to make a first determination of the relative strong phase δ between doubly Cabibbo-suppressed D0→K+π- and Cabibbo-favored D̅ 0→K+π-. We analyze a sample of 1.0×106 D0D̅ 0 pairs from 281 pb-1 of e+e- collision data collected with the CLEO-c detector at Ecm=3.77 GeV. By combining CLEO-c measurements with branching fraction input and time-integrated measurements of RM≡(x2+y2)/2 and RWS≡Γ(D0→K+π-)/Γ(D̅ 0→K+π-) from other experiments, we find cos⁡δ=1.03-0.17+0.31±0.06, where the uncertainties are statistical and systematic, respectively. In addition, by further including external measurements of charm mixing parameters, we obtain an alternate measurement of cos⁡δ=1.10±0.35±0.07, as well as xsin⁡δ=(4.4-1.8+2.7±2.9)×10-3 and δ=(22-12-11+11+9)°.
  Phys. Rev. D. 07/2008; 78(1).
• Article: Study of the decays D0-->pi{-}e{+}nu{e}, D{0}-->K{-}e{+}nu{e}, D{+}-->pi{0}e{+}nu{e}, and D{+}-->K0e{+}nu{e}.

  D Cronin-Hennessy, K Y Gao, D T Gong, J Hietala, Y Kubota, T Klein, B W Lang, R Poling, A W Scott, A Smith, [......], D Kim, N Lowrey, P Naik, C Sedlack, M Selen, E J White, J Wiss, M R Shepherd, D Besson, T K Pedlar
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  ABSTRACT: By using 1.8x10{6} DDpairs, we have measured B(D{0}-->pi{-}e{+}nu{e})=0.299(11)(9)%, B(D{+}-->pi{0}e{+}nu{e})=0.373(22)(13)%, B(D{0}-->K{-}e{+}nu{e})=3.56(3)(9)%, and B(D{+}-->K{0}e{+}nu{e})=8.53(13)(23)% and have studied the q;{2} dependence of the form factors. By combining our results with recent lattice calculations, we obtain |V{cd}|=0.217(9)(4)(23) and |V{cs}|=1.015(10)(11)(106).
  Physical Review Letters 06/2008; 100(25):251802. · 7.37 Impact Factor
• Article: Study of the semileptonic charm decays D0→π-e+νe, D+→π0e+νe, D0→K-e+νe, and D+→K̅ 0e+νe

  S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, J. Ernst, H. Severini, S. A. Dytman, W. Love, V. Savinov, O. Aquines, [......], K. Y. Gao, D. T. Gong, J. Hietala, Y. Kubota, T. Klein, B. W. Lang, R. Poling, A. W. Scott, A. Smith, P. Zweber
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  ABSTRACT: Using a sample of 1.8 million DD̅ mesons collected at the ψ(3770) with the CLEO-c detector, we study the semileptonic decays D0→π-e+νe, D+→π0e+νe, D0→K-e+νe, and D+→K̅ 0e+νe. For the total branching fractions we find B(D0→π-e+νe)=0.299(11)(9)%, B(D+→π0e+νe)=0.373(22)(13)%, B(D0→K-e+νe)=3.56(3)(9)%, and B(D+→K̅ 0e+νe)=8.53(13)(23)%, where the first error is statistical and the second systematic. In addition, form factors are studied through fits to the partial branching fractions obtained in five q2 ranges. By combining our results with recent unquenched lattice calculations, we obtain |Vcd|=0.217(9)(4)(23) and |Vcs|=1.015(10)(11)(106), where the final error is theoretical.
  Phys. Rev. D. 06/2008; 77(11).
• Article: Determination of the strong phase in D0-->K+pi- using quantum-correlated measurements.

  J L Rosner, J P Alexander, D G Cassel, J E Duboscq, R Ehrlich, L Fields, L Gibbons, R Gray, S W Gray, D L Hartill, [......], A Lincoln, J Rademacker, D M Asner, K W Edwards, P Naik, R A Briere, T Ferguson, G Tatishvili, H Vogel, M E Watkins
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  ABSTRACT: We exploit the quantum coherence between pair-produced D0 and D[over]0 in psi(3770) decays to study charm mixing, which is characterized by the parameters x and y, and to make a first determination of the relative strong phase delta between D0-->K+pi- and D[over]0-->K+pi-. Using 281 pb(-1) of e+e- collision data collected with the CLEO-c detector at Ecm=3.77 GeV, as well as branching fraction input and time-integrated measurements of RM identical with (x2 + y2)/2 and RWS identical with Gamma(D0-->K+pi-)/Gamma(D[over]0-->K+pi-) from other experiments, we find cosdelta=1.03(-0.17)(+0.31)+/-0.06, where the uncertainties are statistical and systematic, respectively. By further including other mixing parameter measurements, we obtain an alternate measurement of cosdelta=1.10+/-0.35+/-0.07, as well as x sindelta=(4.4(-1.8)(+2.7)+/-2.9)x10(-3) and delta=(22(-12-11)(+11+9)) degrees .
  Physical Review Letters 06/2008; 100(22):221801. · 7.37 Impact Factor
• Article: Study of the Decays D0→π-e+νe, D0→K-e+νe, D+→π0e+νe, and D+→ Kmacr 0e+νe

  D. Cronin-Hennessy, K. Y. Gao, D. T. Gong, J. Hietala, Y. Kubota, T. Klein, B. W. Lang, R. Poling, A. W. Scott, A. Smith, [......], D. Kim, N. Lowrey, P. Naik, C. Sedlack, M. Selen, E. J. White, J. Wiss, M. R. Shepherd, D. Besson, T. K. Pedlar
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  ABSTRACT: By using 1.8×106 D Dmacr pairs, we have measured B(D0→π-e+νe)=0.299(11)(9)%, B(D+→π0e+νe)=0.373(22)(13)%, B(D0→K-e+νe)=3.56(3)(9)%, and B(D+→ Kmacr 0e+νe)=8.53(13)(23)% and have studied the q2 dependence of the form factors. By combining our results with recent lattice calculations, we obtain |Vcd|=0.217(9)(4)(23) and |Vcs|=1.015(10)(11)(106).
  Physical Review Letters 05/2008; 100(25):251802. · 7.37 Impact Factor