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Cross Sections For The Reactions E E To K K Pi Pi K K Pi0pi0 And K K K K Measured Using Initial State Radiation
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Book Synopsis Cross Sections for the Reactions E+e to K+ K- Pi+pi-, K+ K- Pi0pi0, and K+ K- K+ K- Measured Using Initial-State Radiation by :
Download or read book Cross Sections for the Reactions E+e to K+ K- Pi+pi-, K+ K- Pi0pi0, and K+ K- K+ K- Measured Using Initial-State Radiation written by and published by . This book was released on 2011 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the processes ee− 2!K+K−?+?-?, K+K−?°?°?, and K+K−K+K−?, where the photon is radiated from the initial state. About 84000, 8000, and 4200 fully reconstructed events, respectively, are selected from 454 fb−1 of BABAR data. The invariant mass of the hadronic final state defines the e+e− center-of-mass energy, so that the K+K−?+?−? data can be compared with direct measurements of the e+e− 2!K+K−?+?− reaction. No direct measurements exist for the e+e− 2!K+K−?°?° or e+e− 2!K+K−K+K− reactions, and we present an update of our previous result with doubled statistics. Studying the structure of these events, we find contributions from a number of intermediate states, and extract their cross sections. In particular, we perform a more detailed study of the e+e− 2!?(1020)??? reaction, and confirm the presence of the Y (2175) resonance in the?(1020)f0(980) and K+K− f0(980) modes. In the charmonium region, we observe the J/? in all three final states and in several intermediate states, as well as the?(2S) in some modes, and measure the corresponding branching fractions.
Book Synopsis Measurements of E+e- to KKeta, KKpi0 and KsKpi CrossSections Using Initial State Radiation Events by :
Download or read book Measurements of E+e- to KKeta, KKpi0 and KsKpi CrossSections Using Initial State Radiation Events written by and published by . This book was released on 2007 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper reports measurements of processes: ee− →?K°{sub s}K{sup {+-}}?{sup {+-}}, e+e− →?K+K−?°, e+e− →??? and e+e− →???°. The initial state radiated photon allows to cover the hadronic final state in the energy range from thresholds up to ≈ 4.6 GeV. The overall size of the data sample analyzed is 232 fb−1, collected by the BABAR detector running at the PEP-II e+e− storage ring. From the Dalitz plot analysis of the K°{sub s}K{sup {+-}}?{sup {+-}} final state, moduli and relative phase of the isoscalar and the isovector components of the e+e− → KK*(892) cross section are determined. Parameters of? and? recurrences are also measured, using a global fitting procedure which exploits the interconnection among amplitudes, moduli and phases of the e+e− →K°{sub s}K{sup {+-}}?{sup {+-}}, K+K−?°,?? final states. The cross section for the OZI-forbidden process e+e− →??° and the J/? branching fractions to KK*(892) and K+K−? are also measured.
Book Synopsis Measurement of the E+ E- to Pi+ Pi- Pi+ Pi-, K+ K- Pi+ Pi-, K+ K- K+ K- Cross Sections Using Initial State Radiation at BaBar by :
Download or read book Measurement of the E+ E- to Pi+ Pi- Pi+ Pi-, K+ K- Pi+ Pi-, K+ K- K+ K- Cross Sections Using Initial State Radiation at BaBar written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: First results of a study of the ee− → ?+?−?+?−? process with hard photon emitted from initial state are presented. About 60000 fully reconstructed events have been selected based on 89.3 fb−1 of BABAR data. The invariant mass of the hadronic final state defines the effective collision c.m. energy, and so BABAR ISR data can be compared to the relevant direct e+e− measurements. From obtained 4? mass spectrum we evaluate e+e− → ?+?−?+?− cross section for the range of c.m.s. energy from 0.6 to 4.5 GeV. The systematic error of the cross section measurement is 5% and comparable with the best e+e− data. The cross sections for identified 2K2? and 4K final states also have been presented.
Book Synopsis The E+e- to to K+ K- \pi+\pi-, K+ K- \pi0\pi0 and K+ K- K+ K- Cross Sections Measured with Initial-State Radiation by :
Download or read book The E+e- to to K+ K- \pi+\pi-, K+ K- \pi0\pi0 and K+ K- K+ K- Cross Sections Measured with Initial-State Radiation written by and published by . This book was released on 2007 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the processes e+e− → K+K−?+?−?, K+K−?°?°? and K+K−K+K−?, where the photon is radiated from the initial state. About 34600, 4400 and 2300 fully reconstructed events respectively, are selected from 232 fb−1 of BABAR data. The invariant mass of the hadronic final state defines the effective e+e− center-of-mass energy, so that the K+K−?+?−? data can be compared with direct measurements of the e+e− → K+K−?+?−? reaction; no direct measurements exist for the e+e− → K+K−?°?°? or e+e− → K+K−K+K− reactions. Studying the structure of these events, we find contributions from a number of intermediate states, and we extract their cross sections where possible. In particular, we isolate the contribution from e+e− → ?(1020)f0(980) and study its structure near threshold. In the charmonium region, we observe the J/? in all three final states and several intermediate states, as well as the ?/(2S) in some modes, and measure the corresponding branching fractions. We see no signal for the Y(4260) and obtain an upper limit of ?{sub Y(4260)→??+?−} · ?{sub ee}{sup Y}
Download or read book The Contrast written by and published by . This book was released on 1876* with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compilation of Cross Sections: 4 (2.14) induced reactions by :
Download or read book Compilation of Cross Sections: 4 (2.14) induced reactions written by and published by . This book was released on 1970 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Epem to Pi+ Pi- Pi+ Pi-, K+ K- Pi+ Pi-, and K+ K- K+ K- Cross Sections at Center-of-Mass Energies 0.5--4.5G̃eV Measured with Initial-State Radiation by :
Download or read book The Epem to Pi+ Pi- Pi+ Pi-, K+ K- Pi+ Pi-, and K+ K- K+ K- Cross Sections at Center-of-Mass Energies 0.5--4.5G̃eV Measured with Initial-State Radiation written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the process ee− 2!?+?−?+?−?, with a hard photon radiated from the initial state. About 60,000 fully reconstructed events have been selected from 89 fb−1 of BABAR data. The invariant mass of the hadronic final state defines the effective e+e− center-of-mass energy, so that these data can be compared with the corresponding direct e+e− measurements. From the 4?-mass spectrum, the cross section for the process e+e− 2!?+?−?+?− is measured for center-of-mass energies from 0.6 to 4.5 GeV. The uncertainty in the cross section measurement is typically 5%. We also measure the cross sections for the final states K+K−?+− and K+K−K+K−. We observe the J/? in all three final states and measure the corresponding branching fractions. We search for X(3872) in J/?(2!?+?−)?+?− and obtain an upper limit on the product of the e+e− width of the X(3872) and the branching fraction for X(3872) 2!J/??+?−.
Book Synopsis Compilation of Cross Sections: K−induced reactions by :
Download or read book Compilation of Cross Sections: K−induced reactions written by and published by . This book was released on 1970 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Total and Differential [pi-pi] Cross Sections in [pi-rho] Interactions at 1.25 Bev/c by : D. Duane Carmony
Download or read book Total and Differential [pi-pi] Cross Sections in [pi-rho] Interactions at 1.25 Bev/c written by D. Duane Carmony and published by . This book was released on 1961 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the e+ e- → pi+ pi- 2pi0 and e+ e- → pi+ pi- 3pi0 cross sections using initial state radiation at BaBar by : Konrad Griessinger
Download or read book Measurement of the e+ e- → pi+ pi- 2pi0 and e+ e- → pi+ pi- 3pi0 cross sections using initial state radiation at BaBar written by Konrad Griessinger and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Oak Ridge National Laboratory. Charged-Particle Cross-Section Data Center Publisher : ISBN 13 : Total Pages :518 pages Book Rating :4.3/5 (91 download)
Book Synopsis Nuclear Cross Sections for Charged-particle Induced Reactions by : Oak Ridge National Laboratory. Charged-Particle Cross-Section Data Center
Download or read book Nuclear Cross Sections for Charged-particle Induced Reactions written by Oak Ridge National Laboratory. Charged-Particle Cross-Section Data Center and published by . This book was released on 1964 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compilation of Invariant Cross Sections for the Reactions. Pi by :
Download or read book Compilation of Invariant Cross Sections for the Reactions. Pi written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the invariant cross section for various beam species to produce .pi.° mesons at high transverse momentum in the reaction beam + proton .-->. .pi.0 anything are presented. These measurements were taken at Fermilab at 100, 200 and 300 GeV/c. 8 references.
Book Synopsis Compilation of Cross Sections: Compilations of cross sections III - K+induced reactions by :
Download or read book Compilation of Cross Sections: Compilations of cross sections III - K+induced reactions written by and published by . This book was released on 1970 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compilation of Cross Sections by : E. Flaminio
Download or read book Compilation of Cross Sections written by E. Flaminio and published by . This book was released on 1970 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compilation of Cross Sections I by :
Download or read book Compilation of Cross Sections I written by and published by . This book was released on 1983 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Compilation of Cross Sections written by and published by . This book was released on 1971 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compilation of Cross Sections. 2 by :
Download or read book Compilation of Cross Sections. 2 written by and published by . This book was released on 1970 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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