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Book A Study of K sub S Lambda and bar Lambda Production in Hadronic Z sup 0 Decays

Download or read book A Study of K sub S Lambda and bar Lambda Production in Hadronic Z sup 0 Decays written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary measurement of the inclusive production rates of K[sub s], A and X hadrons produced in e[sup +]e[sup [minus]] annihilation at the Z[sup 0] pole. The analysis is based upon approximately 50K Z[sup 0] decays collected in the SLD experiment at SLAC in 1993. The observed rates of (K[sub s]) = 1.02 [plus-minus] 0.02 [plus-minus] 0.09 and ([Lambda]) + ([bar [Lambda]]) = 0.38 [plus-minus] 0.01 [plus-minus] 0.04 are consistent with previous measurements. Our differential cross section peak-position results are shown to be consistent with QCD predictions based on the modified leading logarithm approximation and local parton-hadron duality.

Book Preliminary Measurements of Production Of sup plus minus K sup plus minus P K And in Hadronic Z Decays

Download or read book Preliminary Measurements of Production Of sup plus minus K sup plus minus P K And in Hadronic Z Decays written by and published by . This book was released on 1996 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have measured production of?{sup {+-}},?{sup {+-}}, {ital p}/{ital {bar p}},?° and?°/{bar?}° as a function of momentum in inclusive hadronic {ital Z}° decay events and separately in events containing primary light-({ital uds}) and {ital b}-quarks. The SLD Cherenkov Ring Imaging Detector was used to identify charged pions, kaons, and protons over most of the available momentum range 0.8>{ital p}>33 GeV/c. The neutral?°{sub s} and {Lambda}° were reconstructed using the??− and {ital p}?− decay modes, respectively. We present the first comparisons of momentum of charged tracks measured in the SLD Vertex Detector. Substantial differences are observed, consistent with the kinematics of {ital B}-hadron production in Z° decays and the properties of {ital B}-hadron decays as measured at lower energies.

Book Production Of pi sup plus minus K sup plus minus P K sup 0 sub S Lambda sup 0 K sup 0 And phi in Hadronic Z sup 0 Decays

Download or read book Production Of pi sup plus minus K sup plus minus P K sup 0 sub S Lambda sup 0 K sup 0 And phi in Hadronic Z sup 0 Decays written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Production rates and momentum distributions have been measured for[pi][sup[+-]], K[sup[+-]], p, K[sup 0][sub s], [Lambda][sup 0], K[sup*0] and[phi] in 150,000 hadronic Z[sup 0] decays recorded by the SLD detector at the SLD collider at SLAC. The analysis uses the SLD Cerenkov Ring Imaging Detector (CRID) for clean and efficient identification of charged tracks and significant background reduction. In addition, K[sup*0] production has been studied in quark and anti-quark jet samples, which were identified by their electroweak forward backward asymmetries using the SLD high electron beam polarization. A difference between the two samples is observed in the K[sup*0] rate at high momentum, consistent with leading particle and strangeness suppression hypotheses.

Book Production of F 0 980 F 2 1270 and Phi 1020 in Hadronic Z 0 Decay

Download or read book Production of F 0 980 F 2 1270 and Phi 1020 in Hadronic Z 0 Decay written by and published by . This book was released on 1998 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Production Of sup plus minus K sup plus minus P K sub S K sup 0 And in Hadronic Z Decays

Download or read book Production Of sup plus minus K sup plus minus P K sub S K sup 0 And in Hadronic Z Decays written by and published by . This book was released on 1996 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Production rates and momentum distributions have been measured for?{sup {+-}}, K{sup {+-}}, p, K°{sub s},?°, K{sup *0} and? in 150,000 hadronic Z° decays recorded by the SLD detector at the SLD collider at SLAC. The analysis uses the SLD Cerenkov Ring Imaging Detector (CRID) for clean and efficient identification of charged tracks and significant background reduction. In addition, K{sup *0} production has been studied in quark and anti-quark jet samples, which were identified by their electroweak forward backward asymmetries using the SLD high electron beam polarization. A difference between the two samples is observed in the K{sup *0} rate at high momentum, consistent with leading particle and strangeness suppression hypotheses.

Book Measurement of the Q2 Dependence of the Hadronic Form Factor in D0 to K E Nu e Decays

Download or read book Measurement of the Q2 Dependence of the Hadronic Form Factor in D0 to K E Nu e Decays written by B. Aubert and published by . This book was released on 2006 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: A preliminary measurement of the q{sup 2} dependence of the D{sup 0} {yields} K{sup -}e{sup +}{nu}{sub e} decay rate is presented. This rate is proportional to the hadronic form factor squared, specified by a single parameter. This is either the mass in the simple pole ansatz m{sub pole} = (1.854 {+-} 0.016 {+-} 0.020) GeV/c{sup 2} or the scale in the modified pole ansatz {alpha}{sub pole} = 0.43 {+-} 0.03 {+-} 0.04. The first error refers to the statistical, the second to the systematic uncertainty.

Book A Study of K sub S Lambda and bar Lambda Production in Hadronic Z Decays

Download or read book A Study of K sub S Lambda and bar Lambda Production in Hadronic Z Decays written by and published by . This book was released on 1994 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary measurement of the inclusive production rates of K{sub s}, A and X hadrons produced in ee− annihilation at the Z° pole. The analysis is based upon approximately 50K Z° decays collected in the SLD experiment at SLAC in 1993. The observed rates of (K{sub s}) = 1.02 ± 0.02 ± 0.09 and ([Lambda]) + ({bar {Lambda}}) = 0.38 ± 0.01 ± 0.04 are consistent with previous measurements. Our differential cross section peak-position results are shown to be consistent with QCD predictions based on the modified leading logarithm approximation and local parton-hadron duality.

Book High Energy Physics Index

Download or read book High Energy Physics Index written by and published by . This book was released on 1990 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Measurement of D sup 0 mixing in D sup 0 to phi K sup 0 sub S decays

Download or read book Measurement of D sup 0 mixing in D sup 0 to phi K sup 0 sub S decays written by Anže Zupanc and published by . This book was released on 2009 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Department of Transportation Budget Program Analysis of Fiscal Year 1977 DOT Program by Policy and RD D Management Objectives Program Levels for Fiscal Years 1975 1976 1977

Download or read book Department of Transportation Budget Program Analysis of Fiscal Year 1977 DOT Program by Policy and RD D Management Objectives Program Levels for Fiscal Years 1975 1976 1977 written by and published by . This book was released on 1976 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book INIS Atomindeks

Download or read book INIS Atomindeks written by and published by . This book was released on 1988 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Measurement of the B J psi K 892 Decay Amplitudes

Download or read book Measurement of the B J psi K 892 Decay Amplitudes written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a measurement of the decay amplitudes in B[yields] J/[psi] K*(892) channels using 20.7 fb[sup -1] of data collected at the[Upsilon](4S) resonance with the BABAR detector at PEP-II. They measure a P-wave fraction R[perpendicular]= (16.0[+-] 3.2[+-] 1.4)% and a longitudinal polarization fraction (59.7[+-] 2.8[+-] 2.4)%. The measurement of a relative phase that is neither 0 nor[pi], [psi][parallel]= 2.50[+-] 0.20[+-] 0.08 radians, favors a departure from the factorization hypothesis. Although the decay B[yields] J/[psi] K[pi] proceeds mainly via K*(892), there is also evidence for K*[sub 2](1430) and K[pi] S-wave contributions.

Book The Production of pi sup K sup P K and Lambda in Hadronic Z Decays

Download or read book The Production of pi sup K sup P K and Lambda in Hadronic Z Decays written by and published by . This book was released on 1995 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have measured production fractions and spectra for [pi]{sup {+-}}, K{sup {+-}} and p, and production spectra for K° and [Lambda]° in both hadronic Z° decays and a Z° → light quark (uds) subset at SLD. The SLD Cherenkov Ring Imaging Detector was used to identify charged hadrons. The CCD vertex detector was used to select the enriched uds sample. For the global sample, the results are consistent with previous experiments. The authors observe a clear flavor dependence in production spectra, but only a small effect in hadron fractions and [xi] = ln(1/x{sub p}) peak positions.

Book The Production of pi sup P Ksup 0 and Lambdasup 0 in Hadronic Zsup 0 Decays

Download or read book The Production of pi sup P Ksup 0 and Lambdasup 0 in Hadronic Zsup 0 Decays written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: