Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Observation Of An Excited Charm Baryon Omega C Decaying To Omega0 C Gamma
Download Observation Of An Excited Charm Baryon Omega C Decaying To Omega0 C Gamma full books in PDF, epub, and Kindle. Read online Observation Of An Excited Charm Baryon Omega C Decaying To Omega0 C Gamma ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Observation of an Excited Charm Baryon Omega^*_C Decaying to Omega^0_C Gamma by : B. Aubert
Download or read book Observation of an Excited Charm Baryon Omega^*_C Decaying to Omega^0_C Gamma written by B. Aubert and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report the first observation of an excited singly-charmed baryon {Omega}*{sub c} (css) in the radiative decay {Omega}{sub c}{sup 0}{gamma}, where the {Omega}{sub c}{sup 0} baryon is reconstructed in the decays to the final states {Omega}{sup -}{pi}{sup +}, {Omega}{sup -} {pi}{sup +}{pi}{sup 0}, {Omega}{sup -}{pi}{sup +}{pi}{sup -}{pi}{sup +}, and {Xi}{sup -} K{sup -} {pi}{sup +}{pi}{sup +}. This analysis is performed using a dataset of 230.7 fb{sup -1} collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center. The mass difference between the {Omega}*{sub c} and the {Omega}{sub c}{sup 0} baryons is measured to be 70.8 {+-} 1.0(stat) {+-} 1.1(syst) MeV/c{sup 2}. They also measure the ratio of inclusive production cross sections of {Omega}*{sub c} and {Omega}{sub c}{sup 0} in e{sup +}e{sup -} annihilation.
Book Synopsis First Observation of An Excited Charm Baryon Decaying to Omega Charm Baryon at the BaBar Experiment by :
Download or read book First Observation of An Excited Charm Baryon Decaying to Omega Charm Baryon at the BaBar Experiment written by and published by . This book was released on 2006 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have carried out a search for a charmed baryon [Omega]$*\atop{c}$ decaying to [Omega]$0\atop{c}$ and a [gamma] where [Omega] c candidates are reconstructed using decay modes [Omega]-[pi]+(c1), [Omega]-[pi]+[pi]0(c2), [Omega]-[pi]+[pi]-[pi]+(c3) and [Xi]-K-[pi]+[pi]+(c4). This search is performed by analyzing integrated luminosity of 230.7 fb-1 data collected by the BABAR detector at the Stanford Linear Accelerator Center. In decay channel [Omega]$*\atop{c}$ → [Omega]$0\atop{c}$([Omega]-[pi]+)[gamma] (C1), we observe a signal yield of 39.2$+9.8\atop{-9.1}$ (stat)±6.0(syst) events with a significance of 4.2 standard deviations. In decay channels [Omega]$*\atop{c}$ → [Omega]$0\atop{c}$([Omega]-[pi]+[pi]0)[gamma] (C2) and [Omega]$*\atop{c}$ →} [Omega]$0\atop{c}$([Xi]-K-[pi]+[pi]+)[gamma] (C4), we observe signal yields of 55.2$+16.1\atop{-15.2}$ ± 5.6 and 20.2$+9.3\atop{-8.5}$ ± 3.1 with significances of 3.4 and 2.0 [sigma], respectively. As for the [Omega]$*\atop{c}$ → [Omega]$0\atop{c}$([Omega]-[pi]+[pi]-[pi]+)[gamma] (C3) decay channel, we observe signal yields of -5.1$+5.3.8\atop{-4.7}$±1.0 without a positive significance. We assume the same production mechanism for the four decay channels of [Omega]$*\atop{c}$ studied. By combining these four channels, the fit results in a signal yield of 105.3$+21.2\atop{-20.5}$± 6.0 events with a significance of 5.2 [sigma]. We report the mass difference [Omega]$*\atop{c}$ - [Omega]$0\atop{c}$([delta]m) of the singly charmed baryon [Omega]$*\atop{c}$ to be 70.8$+1.0\atop{-1.0}$±1.1 MeV. Finally, the ratios of production cross sections are calculated: [sigma](e+e-→C1)/[sigma](e+e-→c1) = 0.71$+0.19\atop{-0.18}$±0.11, [sigma](e+e-→C2)/[sigma](e+e-→c2) = 1.76$+0.71\atop{-0.69}$±0.19, [sigma](e+e-→C3)/[sigma](e+e-→c3) = -0.66$+0.74\atop{-0.66}$±0.13, [sigma](e+e-→C4)/[sigma](e+e-→c4) = 1.70{sup +1.0}{sub -1.0}±0.27 and [sigma](e+e-→[Omega]$*\atop{c}$ (combined))/[sigma](e+e-→[Omega]$0\atop{c}$) = 1.0$+0.23\atop{-0.22}$±0.11.
Book Synopsis First Observation of an Exited Charm Baryon [omega] [suprascript]* [subscript]c Decaying to [omega] [suprascript]0 [subscript]c Y at the BABAR Experiment by : Rahmi Bula
Download or read book First Observation of an Exited Charm Baryon [omega] [suprascript]* [subscript]c Decaying to [omega] [suprascript]0 [subscript]c Y at the BABAR Experiment written by Rahmi Bula and published by . This book was released on 2006 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book الروح الايماني في الشعر العربي written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation of Charmed Strange [omega]0/c Baryon in E+e- Collisions and First Observation of Charmed Strange Baryons [xi]+'/c (c{s, U}) and [xi]0'/c (c{s, D}) by : Syed Basit Athar
Download or read book Observation of Charmed Strange [omega]0/c Baryon in E+e- Collisions and First Observation of Charmed Strange Baryons [xi]+'/c (c{s, U}) and [xi]0'/c (c{s, D}) written by Syed Basit Athar and published by . This book was released on 2001 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Double-Charm and Charm-Strange Baryons InElectron-Positron Annihilations by :
Download or read book A Study of Double-Charm and Charm-Strange Baryons InElectron-Positron Annihilations written by and published by . This book was released on 2007 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation I describe a study of double-charm and charm-strange baryons based on data collected with the BABAR Detector at the Stanford Linear Accelerator Center. In this study I search for new baryons and make precise measurements of their properties and decay modes. I seek to verify and expand upon double-charm and charm-strange baryon observations made by other experiments. The BABAR Detector is used to measure subatomic particles that are produced at the PEP-II storage rings. I analyze approximately 300 million e+e- → c{bar c} events in a search for the production of double-charm baryons. I search for the double-charm baryons?{sub cc} (containing the quarks ccd) and?{sup ++}{sub cc} (ccu) in decays to?+{sub c}K−?+ and?+{sub c}K−?+?+, respectively. No statistically significant signals for their production are found, and upper limits on their production are determined. Statistically significant signals for excited charm-strange baryons are observed with my analysis of approximately 500 million e+e- → c{bar c} events. The charged charm-strange baryons?{sub c}(2970)+,?{sub c}(3055)+,?{sub c}(3123)+ are found in decays to?+{sub c}K−?+, the same decay mode used in the?+{sub cc} search. The neutral charm-strange baryon?{sub c}(3077)° is observed in decays to?+{sub c}K?−. I also search for excited charm-strange baryon decays to?+{sub c}K8,?+{sub c}K−,?+{sub c}K8?−?+, and?+{sub c}K−?−?+. No significant charm-strange baryon signals a f h these decay modes. For each excited charm-strange baryon state that I observe, I measure its mass, natural width (lifetime), and production rate. The properties of these excited charm-strange baryons and their decay modes provide constraints for phenomenological models of quark interactions through quantum chromodynamics. My discovery of the two new charm-strange baryons?{sub c}(3055)+ and?{sub c}(3123)+ influences our theoretical understanding of charm-strange baryon states.
Book Synopsis Observation of Two Excited Charmed Baryons Decaying Into Lambda(c)+ Pi+- by :
Download or read book Observation of Two Excited Charmed Baryons Decaying Into Lambda(c)+ Pi+- written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Using data recorded by the CLEO-II detector at CESR, we report evidence of a pair of excited charmed baryons, one decaying into[Lambda][sub c][sup+][pi][sup+] and the other into[Lambda][sub c][sup+][pi][sup -]. The doubly charged state has a measured mass difference M([Lambda][sub c][sup+][pi][sup+]) - M([Lambda][sub c][sup+]) of 234.5[+-] 1.1[+-] 0.8 MeV and a width of 17.9[sub -3.2][sup+3.8][+-] 4.0 MeV, and the neutral state has a measured mass difference M([Lambda][sub c][sup+][pi][sup -]) - M([Lambda][sub c][sup+]) of 232.6[+-] 1.0[+-] 0.8 MeV and a width of 13.0[sub -3.0][sup+3.7][+-] 4.0 MeV. We identify these states as[Sigma]*[sub c][sup++] and[Sigma]*[sub c][sup 0], the spin 3/2[sup+] excitations of the[Sigma][sub c] baryons.
Book Synopsis A Study of Excited Charm-Strange Baryons WithEvidence for New Baryons Xi_c(3055)+ and Xi_c(3123) by :
Download or read book A Study of Excited Charm-Strange Baryons WithEvidence for New Baryons Xi_c(3055)+ and Xi_c(3123) written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a study of excited charm-strange baryon states produced in ee− annihilations at or near a center-of-mass energy of 10.58 GeV, in a data sample with an integrated luminosity of 384 fb−1 recorded with the BABAR detector at the PEP-II e+e storage rings at the Stanford Linear Accelerator Center. We study strong decays of charm-strange baryons to?{sub c}+K{sub S}°,?{sub c}+K−,?{sub c}+K−?+,?{sub c}+K{sub S}°?−,?{sub c}+K{sub S}°?−?+,?{sub c}+K−?−?+. This study confirms the existence of the states?{sub c}(2980)+,?{sub c}(3077)+, and?{sub c}(3077)−, with a more accurate determination of the?{sub c}(2980)+ mass and width. We also present evidence for two new states,?{sub c}(3055)+ and?{sub c}(3123)+, decaying through the intermediate resonant modes?{sub c}(2455){sup ++}K− and?{sub c}(2520){sup ++}K−, respectively. For each of these baryons, we measure the yield in each final state, determine the statistical significance, and calculate the product of the production cross-section and branching fractions. We also measure the masses and widths of these excited charm-strange baryons.
Book Synopsis Charm Baryon Studies at BaBar by : V. Ziegler
Download or read book Charm Baryon Studies at BaBar written by V. Ziegler and published by . This book was released on 2006 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a precision measurement of the mass of the {Lambda}{sub c}{sup +} and studies of the production and decay of the {Omega}{sub c}{sup 0} and {Xi}{sub c}{sup 0} charm baryons using data collected by the BABAR experiment. To keep the systematic uncertainty as low as possible, the {Lambda}{sub c}{sup +} mass measurement is performed using the low Q-value decays, {Lambda}{sub c}{sup +} {yields} {Lambda}{sup 0} K{sub S}{sup 0}K{sup +} and {Lambda}{sub c}{sup +} {yields} {Sigma}{sup 0} K{sub S}{sup 0}K{sup +}. Several hadronic final states involving an {Omega}{sup -} and a {Xi}{sup -} hyperon are analyzed to reconstruct the {Xi}{sub c}{sup 0} and the {Omega}{sub c}{sup 0}.
Book Synopsis Observation of a Charmed Baryon Decaying to D0 P at a Mass Near 2.94 GeV/c2 by : B. Aubert
Download or read book Observation of a Charmed Baryon Decaying to D0 P at a Mass Near 2.94 GeV/c2 written by B. Aubert and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for charmed baryons decaying to D{sup 0}p reveals two states: the {Lambda}{sub c}(2880){sup +} baryon and a previously unobserved state at a mass of [2939.8 {+-} 1.3 (stat.) {+-} 1.0 (syst.)] MeV/c{sup 2} and with an intrinsic width of [17.5 {+-} 5.2 (stat.) {+-} 5.9 (syst.)] MeV. Consistent and significant signals are observed for the K{sup -}{pi}{sup +} and K{sup -}{pi}{sup +}{pi}{sup -}{pi}{sup +} decay modes of the D{sup 0} in 287 fb{sup -1} annihilation data recorded by the BABAR detector at a center-of-mass energy of 10.58 GeV. There is no evidence in the D{sup +}p spectrum of doubly-charged partners. The mass and intrinsic width of the {Lambda}{sub c}(2880){sup +} baryon and relative yield of the two baryons are also measured.
Book Synopsis Observation of Charmed C-baryon Decay Into +pi-pi+ in Nuclear Emulsion by : Raymond G. Ammar
Download or read book Observation of Charmed C-baryon Decay Into +pi-pi+ in Nuclear Emulsion written by Raymond G. Ammar and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hadronic weak decays of the charmed doubly-strange baryon Ω0c [Omega 0 c] by : Zhongliang Ren
Download or read book Hadronic weak decays of the charmed doubly-strange baryon Ω0c [Omega 0 c] written by Zhongliang Ren and published by . This book was released on 1995 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Decay Properties of the Charm Baryon [Lambda] [subscript C] by : Eric James Mannel
Download or read book Decay Properties of the Charm Baryon [Lambda] [subscript C] written by Eric James Mannel and published by . This book was released on 1991 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis First Observation of Doubly Charmed Baryons by :
Download or read book First Observation of Doubly Charmed Baryons written by and published by . This book was released on 2003 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The SELEX experiment (E781) at Fermilab has observed two statistically compelling high mass states near 3.6 GeV/c2, decaying to?{sub c} K−?+ and?{sub c}+ K−?+?+. These final states are Cabibbo-allowed decay modes of doubly charmed baryons?{sub cc}+ and?{sub cc}{sup ++}, respectively. The masses are in the range expected from theoretical considerations, but the spectroscopy is surprising. SELEX also has weaker preliminary evidence for a state near 3.8 GeV/c2, a high mass state decaying to?{sub c}+ K−?+?+, possibly an excited?{sub cc}{sup ++} (ccu*). Data are presented and discussed.
Book Synopsis First Observation of a Family of Double-charm Baryons by :
Download or read book First Observation of a Family of Double-charm Baryons written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The SELEX experiment (E781) at Fermilab has candidates for high mass states decaying to[Lambda][sub c][sup+]K[sup -][pi][sup+] and[Lambda][sub c][sup+]K[sup -] pi[sup+][pi][sup+], Cabibbo-allowed decay modes of doubly-charmed baryons[Xi][sub cc][sup+] and[Xi][sub cc][sup++]. The masses are consistent with theoretical considerations, but the spectroscopy is surprising. Limited lifetime information suggests that[tau][sub[Xi][sub cc][sup++]][approx][tau][sub Xi][sub cc][sup+].
Book Synopsis Excited Charm Baryons in Semileptonic Lambda(sub)b Decay and Their Contribution to a Bjorken Sum Rule by :
Download or read book Excited Charm Baryons in Semileptonic Lambda(sub)b Decay and Their Contribution to a Bjorken Sum Rule written by and published by . This book was released on 1991 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: It has recently been shown that hadrons containing a single heavy quark exhibit a new flavor-spin symmetry of QCD. We exploit this symmetry to obtain model independent predictions for the form factors for the semileptonic decay of the Lambda(sub)b to the low-lying negative parity charm baryons. We discuss the connection between these results and the slope of the universal function Zeta that determines the Lambda(sub)b->Lambda(sub)c weak form factors.
Book Synopsis Hadronic Weak Decays of the Charmed Doubly-strange Baryon Omega 0 C by : Zhongliang Ren
Download or read book Hadronic Weak Decays of the Charmed Doubly-strange Baryon Omega 0 C written by Zhongliang Ren and published by . This book was released on 1995 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download First Observation of an Exited Charm Baryon [omega] [suprascript]* [subscript]c Decaying to [omega] [suprascript]0 [subscript]c Y at the BABAR Experiment PDF Online Free](https://books.google.com/books/content/images/frontcover/coCawgEACAAJ?fife=w200-h370)
![Download Observation of Charmed Strange [omega]0/c Baryon in E+e- Collisions and First Observation of Charmed Strange Baryons [xi]+'/c (c{s, U}) and [xi]0'/c (c{s, D}) PDF Online Free](https://books.google.com/books/content/images/frontcover/24DxxgEACAAJ?fife=w200-h370)
![Download Hadronic weak decays of the charmed doubly-strange baryon Ω0c [Omega 0 c] PDF Online Free](https://books.google.com/books/content/images/frontcover/rprOzQEACAAJ?fife=w200-h370)
![Download Decay Properties of the Charm Baryon [Lambda] [subscript C] PDF Online Free](https://books.google.com/books/content/images/frontcover/xrDOtgAACAAJ?fife=w200-h370)
