Download or read book Search for Modification of Vector Meson Properties in Nuclei written by Clarisse Tur and published by . This book was released on 2005 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for Modification of Vector Meson Properties in Nuclei written by M. Wood and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for Modification of Vector Meson Properties in Nuclei written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: QCD sum rules depict the atomic nucleus as being a medium with partially restored chiral symmetry. This property of the nucleus would imply that the properties of vector mesons, such as their mass and width, are modified when produced in the nuclear medium, since they are controlled by chiral symmetry and its spontaneous as well as explicit breaking in QCD. The g7 (or E01-112) experiment was therefore designed to look for medium effects on the properties of the light vector mesons (rho, omega, and phi) in photoproduction, through their rare leptonic decay into e+e-. This decay channel has been preferred to the two pion channel to avoid distorting the information by strong final interactions. The data for this experiment was taken in the fall of 2002 using the CLAS detector at the Jefferson Laboratory. A bremsstrahlung photon beam was sent on a target containing a liquid deuterium cell and several nuclear targets: C, Fe, Ti, and Pb. Remarkably clean ee− invariant mass spectra were obtained thanks to the outstanding pion rejection with CLAS and its excellent mass resolution. They represent the first observation of the photoproduction of the rho, omega and phi mesons close to threshold via their rare decay into e+e-. A depletion of the omega and phi peaks was observed with increasing target density. This depletion was not seen as markedly in the simulations done using a code based on the BUU transport equations. The data was broken up per target and fitted using the unmodified rho, omega and phi invariant mass distributions from the BUU simulation code. The Dalitz decay contribution of the omega obtained with the same code as well as the combinatorial background shape from mixed e+e- events were also included in the fit. The overall quality of the fits is suggestive of no medium effects observed on the properties of the vector mesons from this data set. However the contribution from the Bethe-Heitler has to be fully understood and incorporated in the fits before a firm claim can be made.
Download or read book Search for In Medium Modifications of the rho Meson written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The photoproduction of vector mesons on various nuclei has been studied using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Laboratory, and here we present preliminary results. All three vector mesons, [rho], [omega], and [phi], are observed via their decay to e+e-, in order to reduce the effects of final state interactions in the nucleus. Of particular interest is possible in-medium effects on the properties of the [rho] meson. The [rho] spectral function is extracted from the data on various nuclei, carbon, iron, and titanium, and compared to the spectrum from liquid deuterium, which is relatively free of nuclear effects. We observe no effects on the mass of the [rho] meson, however, there is some widening of the resonance in titanium and iron, which is consistent with expected collisional broadening.
Download or read book Search for Medium Modification of the rho Meson written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The photoproduction of vector mesons on various nuclei has been studied using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Laboratory. The vector mesons, $\rho$, $\omega$, and $\phi$, are observed via their decay to $e^+e^-$, in order to reduce the effects of final state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of the $\rho$ meson. The $\rho$ spectral function is extracted from the data on various nuclei, carbon, iron, and titanium, and compared to the spectrum from liquid deuterium, which is relatively free of nuclear effects. We observe no significant mass shift for the $\rho$ meson; however, there is some widening of the resonance in titanium and iron, which is consistent with expected collisional broadening.
Download or read book Particle and Nuclear Physics at J PARC written by Takahiro Sato and published by Springer. This book was released on 2010-01-23 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the imminent operational start of the Japan Proton Accelerator Research Complex (J-PARC), a range of fundamental experiments in nuclear and particle physics will come within reach. This book details the most promising ones.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the 9th International Workshop on Meson Production Properties and Interaction MESON 2006 written by and published by . This book was released on 2007 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structure and Dynamics of Elementary Matter written by Walter Greiner and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ladies and gentlemen, dear colleagues, welcome to Kemer to the NATO Advanced Study Institute Structure and Dynamics of Elementary Matter. We have chosen Kemer as the place of our NASI because it is located in a be- tiful and hospitable surrounding. This part of the Mediterranean at the Turkish Riviera is a historic region where many cultures meet (e.g., the Oriental and the Greek and Roman European cultures) and where you ?nd numerous places which played a role in ancient science and in early Christianity. Moreover, with the hotel Ceylan Inter-Continental we have found a most excellent me- ing place, directly located at the beach, equipped with wonderful swimming pools and restaurants – an absolutely ?rst-class location. Our NASIwill deal withthemost recent developmentsin high-energyheavy ionphysicsandinthesearchforsuperheavynuclei–tworatherdistinctareasof research. Indeed, we want to bring two very active communities of nuclear and high-energy physics into close contact. The meeting is both a school and has also the character of a conference: A school because there are many advanced students, many of which are themselves already top researchers and who are contributing with their own research in seminars and posters. It is also a c- ference because new results in the exciting and wonderful ?elds of low- and high-energy heavy ion physics will be presented. We are mainly focussing on the topics of superheavy elements and of hot and dense nuclear matter.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Download or read book The CBM Physics Book written by Bengt Friman and published by Springer Science & Business Media. This book was released on 2011-03-10 with total page 973 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exhaustive survey is the result of a four year effort by many leading researchers in the field to produce both a readable introduction and a yardstick for the many upcoming experiments using heavy ion collisions to examine the properties of nuclear matter. The books falls naturally into five large parts, first examining the bulk properties of strongly interacting matter, including its equation of state and phase structure. Part II discusses elementary hadronic excitations of nuclear matter, Part III addresses the concepts and models regarding the space-time dynamics of nuclear collision experiments, Part IV collects the observables from past and current high-energy heavy-ion facilities in the context of the theoretical predictions specific to compressed baryonic matter. Part V finally gives a brief description of the experimental concepts. The book explicitly addresses everyone working or planning to enter the field of high-energy nuclear physics.
Download or read book High Energy Physics Index written by and published by . This book was released on 1990 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Physics Present and Future written by Walter Greiner and published by Springer. This book was released on 2014-09-17 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: State-of-the-art survey by leading experts in the field. Major foci are superheavy nuclei and neutron-rich exotic nuclei. In addition new developments in nuclear fission and nuclear cluster decay are shown. Finally developments in relativistic heavy ion collisions and the physics of supercritical fields are detailed.
Download or read book Sixth International Conference on Perspectives in Hadronic Physics written by S. Boffi and published by American Institute of Physics. This book was released on 2008-11-04 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the Conference was to discuss recent results and perspectives on the theoretical and experimental investigation of the structure of free hadrons and hadrons in the nuclear medium, as well as the structure of hadronic matter both at normal and extreme conditions. The Volume is a useful update of the subject for theorists and experimentalists working in medium and high energy nuclear physics.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 658 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 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics At The The Japan Hadron Facility Jhf Proceedings Of The Workshop written by Vadim Guzey and published by World Scientific. This book was released on 2002-09-16 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume outlines the exciting new opportunities in hadron physics which have been created by the Japan Hadron Facility (JHF), a major joint initiative between KEK and JAERI. The topics covered include unprecedented possibilities of studying strange matter, neutrino oscillations and hadron structure. The close interaction with lattice QCD is emphasised.
