Download or read book An Analysis Of Gamma P P Pi sup Pi sup Using The CLAS Detector written by Matthew Bellis and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two charged pion final states are studied for GeV photons incident on protons. The data come from Thomas Jefferson National Accelerator Facility using the CLAS detector. A tagged photon beam of 0.5-2.4 GeV/c was produced through bremsstrahlung radiation and was incident on a liquid H{sub 2} target. This analysis looks at the reaction {gamma}p {yields} p{pi}{sup +}{pi}{sup -} using a partial wave analyis to identify intermediate baryon resonances. Total cross section is compared to previous experiments and preliminary differential cross sections for intermediate baryon resonance quantum numbers are shown.

Download or read book An Analysis Of Gamma P P Pi sup Pi sup Using The CLAS Detector written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two charged pion final states are studied for GeV photons incident on protons. The data come from Thomas Jefferson National Accelerator Facility using the CLAS detector. A tagged photon beam of 0.5-2.4 GeV/c was produced through bremsstrahlung radiation and was incident on a liquid H[sub 2] target. This analysis looks at the reaction [gamma]p [yields] p[pi][sup +][pi][sup -] using a partial wave analyis to identify intermediate baryon resonances. Total cross section is compared to previous experiments and preliminary differential cross sections for intermediate baryon resonance quantum numbers are shown.

Download or read book The Analysis of sup 14 N gamma Pi sup Sup 14 C sub G s E Gamma written by David B. Myers and published by . This book was released on 1988 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of Some of the Problems in Analyzing gamma Pi sup Data at E Gamma written by Theodore Z. Willard and published by . This book was released on 1987 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Detecting Final States in the Reaction written by Matthieu Guillo and published by . This book was released on 2000 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gamma Gamma Pi Pi at Large Q sup 2 written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The QCD analysis of the process[gamma]*[gamma][yields][pi][pi] at large Q[sup 2] and small center-of-mass energy allows one to access a new hadronic observable describing the exclusive transition from a q[bar q] or gg state to a pair of mesons. A fruitful study may be envisaged at existing machines.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurements of sup 14 N gamma pi sup sup 14 C sub G s at E Gamma written by Madhavkrishna Sankhavaram and published by . This book was released on 1987 with total page 103 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 199? with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1977 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Reactions Pd T pi sup and Pp D pi sup gamma written by A. M. Green and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transition Form Factor Gamma Gamma Pi sup 0 and QCD Sum Rules written by and published by . This book was released on 1996 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: We extend the QCD sum rule analysis of the form factor F(sub)(gamma*gamma* -> pi^0)(q(sub)1^2, q(sub)2^2) into the region of small virtuality of one of the photons.

Download or read book Spectrometer Study Of Pi sup Pi sup Pi sup 0 and Eta Pi sup Pi sup 8 5 GeV written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The reaction .pi./sup -/p .-->. .pi./sup +/.pi./sup -/.gamma gamma.n is studied with high statistics at 8.5 GeV with a charged and neutral particle spectrometer. Both charged pions and both .gamma.'s are detected. A search was made for the .pi./sup +/.pi./sup -/.pi./sup 0/ decays of the neutral A/sub 1/ and the two missing isoscalar companions of the B, and are seeking to clarify the status of the D and E mesons in .pi./sup +/.pi./sup -/eta.

Download or read book On the Physical Relevance of the Study of Gamma Gamma Pi Pi at Small T and Large Q2 written by and published by . This book was released on 2010 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We discuss the relevance of a dedicated measurement of exclusive production of a pair of neutral pions in a hard [gamma]*[gamma] scattering at small momentum transfer. In this case, the virtuality of one photon provides us with a hard scale in the process, enabling us to perform a QCD calculation of this reaction rate using the concept of Transition Distribution Amplitudes (TDA). Those are related by sum rules to the pion axial form factor F{sub A}{sup [pi]} and, as a direct consequence, a cross-section measurement of this process at intense beam electron-positron colliders such as CLEO, KEK-B and PEP-II, or Super-B would provide us with a unique measurement of the neutral pion axial form factor F{sub A}{sup [pi]0} at small scale. We believe that our models for the photon to meson transition distribution amplitudes are sufficiently constrained to give reasonable orders of magnitude for the estimated cross sections. Cross sections are large enough for quantitative studies to be performed at high luminosity ee− colliders. After verifying the scaling and the [phi] independence of the cross section, one should be able to measure these new hadronic matrix elements, and thus open a new gate to the understanding of the hadronic structure. In particular, we argued here that the study of [gamma]*[gamma] 2![pi]°{pi}° in the TDA regime could provide with a unique experimental measurement of the {pi}° axial form factor.