Download or read book Preliminary Measurements of Production Of pi sup plus minus K sup plus minus P K sup 0 And Lambda sup 0 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: We have measured production of[pi][sup[+-]], [Kappa][sup[+-]], [ital p]/[ital[bar p]], [Kappa][sup 0] and[Lambda][sup 0]/[bar[Lambda]][sup 0] as a function of momentum in inclusive hadronic[ital Z][sup 0] 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[lt][ital p][lt]33 GeV/c. The neutral[Kappa][sup 0][sub s] and[Lambda][sup 0] were reconstructed using the[pi][sup+][pi][sup -] and[ital p][pi][sup -] 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[sup 0] decays and the properties of[ital B]-hadron decays as measured at lower energies.
Download or read book Monument Marking Site of First Presbyterian Church of Hollidaysburg written by and published by . This book was released on with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
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.
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.
Download or read book INIS Atomindex written by and published by . This book was released on 1988 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for the Decay K Sub L Sup 0 Yields Pi Sup 0 E Sup E Sup Minus written by and published by . This book was released on 1990 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are presented of a recent search by AGS Experiment 845 for the CP violating decay K{sub L}° →?°ee−. The 90% C.L. limit B(K{sub L}° →?°e+e−)
Download or read book Partial Wave Analysis of the K Sup K Sup 0 Pi Sup Minus System Produced in the Reaction Pi Sup Minus P Yields K Sup K Sup 0 Pi Sup Minus N at 8 GeV c written by and published by . This book was released on 1988 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have performed a partial wave analysis of the KK{sub S}°?− system produced in the reaction?−p → K+{bar K}°?−n at 8 GeV/c. We present the results of the analysis of 30,740 events in the mass range 1.24--1.60 GeV/c2, with 0.0 ≤ -t
Download or read book Production of The Rho Sub 1 1300 in the Reaction K Sup Minus P Yields Pi Sup Pi Sup Minus Lambda at 11 GeV c written by and published by . This book was released on 1991 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prospects for Studying the Pi Sup Minus K Sup 0 Reaction at PILAC written by and published by . This book was released on 1990 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ([pi]−, K°) reaction, which complements the ([pi], K) reaction, offers another means to study [Lambda]-hypernulei at PILAC. The physics motivation for measuring the ([pi]−, K°) reaction is discussed. The feasibility or detecting K° at PILAC using the LAMPF Neutral Meson Spectrometer and a simple dipole spectrometer is studied with Monte-Carlo simulations. We conclude that the ([pi]−, K°) reaction can be well pursued at PILAC. 18 refs., 5 figs., 3 tabs.
Download or read book K sup K sup and pi sup pi sup Production in K sup p Interactions at 13 GeV written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The description of the K$sup -$p experiment includes the production of phi and rho$sup 0$ mesons, rho$sup 0$-$omega$ interference, and S* production. (JFP).
Download or read book CP Violation in the Decays B Sup 0 Yields Psi K Sub S and B Sup 0 Yields Pi Sup Pi Sup Minus written by and published by . This book was released on 1992 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: We point out the strong correlation between the CP-violating asymmetries in the decays B{sup o} →?K{sub s} and B{sup o} →??− that is predicted by the Kobayashi-Maskawa model. This results in a very restricted allowed region for the asymmetries, and so their measurement will provide a powerful test of the standard model. To show how new physics may give very different results, we look at the predictions of a simple model where both the standard model and superweak contributions to the K{sup o} and B{sup o} mass matrices coexist. We find that, for possible values of the parameters, practically any values are allowed for the asymmetries.
Download or read book The pi sup emission Puzzle in 4 Over Lambda He Decay written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The observed [pi][sup +] emission from the weak decay of 4 over [Lambda] He has long been an intriguing puzzle. Experimentally, the [pi][sup +] to [pi][sup [minus]] ratio for 4 over [Lambda] He decay is about 5%. Because mesonic decay modes of the free [Lambda] ([yields] p + [pi][sup [minus]], n + [pi][sup 0]) produce no [pi][sup +]s, more complicated mechanisms must be responsible for the [pi][sup +] decay of 4 over [Lambda] He. Dalitz and von Hippel explored two-body decay processes of the type: (1) [Lambda] [yields] [pi][sup 0] + n decay followed by a [pi][sup 0] + p [yields] [pi][sup +] + n charge-exchange reaction, and (2) [Sigma][sup +] [yields] [pi][sup +] + n decay following a [Lambda] + p [yields] [Sigma][sup +] + n conversion. They concluded that neither process could account for even a 1% [pi][sup +] + n decay as a p-wave process ruled out the promising explanation coming from von Hippel's calculations, which had found that s-wave [Sigma][sup +] decay might yield a sufficiently high rate. Cieply and Gal re-examined the charge-exchange contribution and concluded that, although up-to-date input parameters yield a 1.2% branching ratio, the charge-exchange mechanism cannot account for the experimental value of about 5%.
Download or read book A Study of Correlations Between Charged Pi K and P in Hadronic Z0 Decays written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary study of correlations in rapidity between pairs of identified charged pions, kaons and protons in the SLD data. Details of short-range charge correlations between all combinations of these hadron species are used to study the locality of quantum number conservation, and suggest local charge ordering along the entire hadronization chain. A strong long-range K[sup+]-K[sup -]correlation is observed at high-momentum and weaker long-range[pi][sup+]-[pi][sup -], [pi][sup+]-K[sup -] and p-K[sup -] and p[bar p] correlations are observed in light flavor events, providing new information on leading particle production in u, d and s jets. The long-range correlations observed in c[bar c] and b[bar b] events are markedly different and consistent with expectations based on known decay properties of the leading heavy hadrons. The SLC electron beam polarization is used to tag the quark hemisphere in each event, allowing the first study of rapidities signed relative to the quark (vs. antiquark) direction. Distributions of ordered, signed rapidity differences provide a new probe of the fragmentation process, including the first direct observation of baryon number ordering along the q[yields][bar q] axis.
Download or read book New Results in the Partial Wave Analysis of the K Sup Minus Omega System in the Reaction K Sup Minus P Yields K Sup Minus Pi Sup Pi Sup Minus Pi Sup 0 P written by and published by . This book was released on 1991 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary results are presented from the first large-statistics partial wave analysis of K−? system produced in the reaction K{sup -p {yields} K−??−?°p at 11 GeV/c observed with the LASS spectrometer at SLAC. The analysis is based on the moments of the joint angular distributions of the decay to the K−?} system, with subsequent? decay to?+?−?0. The resulting J{sup P} = 2−, 2+ and 3− amplitudes exhibit resonant behavior, and are discussed in the context of the relevant Briet-Wigner fits.
Download or read book CP Violation in K Sub L Yields Pi Sup 0 E Sup E Sup written by and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: It's been appreciated for many years that the decays K{sub L} → [pi]°l{bar {ell}} are CP violating to lowest order in the Standard Model, and that the component of direct CP violation in these decays is likely to be comparable to that of the CP violation due to state mixing ([epsilon]). This is to be contrasted with the case of K° → [pi][pi] wherein the latter contribution is predicted to be hundreds of times larger than the former. This paper investigates this CP violation further. 19 refs., 2 figs.
Download or read book Search for the Decay K sub L 0 Yields Pi sup 0 e e written by and published by . This book was released on 1990 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
