Download or read book Study of Neutral Mesons Decaying Into Pi Pi 3 Gamma And Pi Pi 4 Gamma Proposed Experiment written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is proposed to use the Charged and Neutral Spectrometer in Beam 8 to study the reactions ..pi..−p ..-->.. ..pi ... pi..−3..gamma..n and ..pi..−p ..-->.. ..pi..+..pi..−4..gamma..n at 8.5 GeV/c. Improvements to the spectrometer will allow a data collection rate 4 to 5 times better than achieved for these reactions in E-397. Of particular interest are the radiative decays eta' ..-->.. ..omega gamma.., ..omega.. ..-->.. eta..gamma.., rho ..-->.. eta..gamma..; the decay f ..-->.. ..pi../sup +/..pi..−..pi..°..pi..°, in which A1..pi.. may occur; the decay A2 ..-->.. ..omega pi../sup +/..pi..−, in connection with an isoscalar under the A2; study/search for B° and delta°; rare final states such as eta eta, eta..omega.., eta'..pi..° and eta'eta.

Download or read book A Study of 3 pi Production in gamma p 2 n pi pi pi and gamma p 2 Delta pi pi pi with CLAS at Jefferson Lab n written by and published by . This book was released on 2016 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Apart from the mesons that the constituent quark model predicts, QCD allows for additional states beyond the qq system. Previous experiments have performed partial wave analysis on pion-production data and claim observation of an exotic JPC = 1-+ state decaying via p-[pi]. The g12 experiment took place at Jefferson Lab using the CLAS spectrometer, a liquid hydrogen target was used and a tagged photon beam. By studying the reactions [gamma]p → n-[pi]+[pi]+[pi]- and [gamma]p → [Delta]++[pi]+[pi]-[pi]-, the photoproduction of mesons decaying to 3-pi was studied using two different but complimentary channels. Events are selected with low four-momentum transfer to the baryon, in order to enhance one pion exchange production. For both 3-pi systems the data exhibit two intermediate decays, p-pi and f2[pi]. For the [gamma]p → n-[pi]+[pi]+[pi]- reaction over 600k events were acquired resulting in the largest 3 photoproduction dataset to date. The exotic JPC = 1-+ partial wave does not show resonant behavior and more so it is strongly consistent with a non-resonant non-interfering wave relative to a resonant [pi]2(1670). Furthermore, the partial wave analysis shows production of the a2(1320) and [pi]2(1670) mesons. For the first time we report observation of a photoproduced a1(1260) meson. For the [gamma]p → [Delta]++[pi]+[pi]-[pi]- reaction nearly 350k events were analyzed. A partial wave analysis was performed for the first time on this channel. The a1(1260), a2(1320), and the 2(1670) mesons were observed. Observation of the a1(1260) confirms the result first reported in [gamma]p → n-[pi]+[pi]+[pi]- reaction.

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Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 1468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1988 with total page 1428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

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Download or read book Government Reports Index written by and published by . This book was released on 1975 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Government Reports Announcements written by and published by . This book was released on 1973 with total page 1172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Summaries of Projects Completed in Fiscal Year written by and published by . This book was released on 1979 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt: