Download or read book Quasi two body Decays of Nonstrange Baryons written by Simon Capstick and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quasi Two body Decays of Nonstrange Baryons written by and published by . This book was released on 1993 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: We examine the decays of nonstrange baryons to the final states Delta Pi, NRho, NEta, NEta', Nw, N.5 (1440)Pi, and Delta 3/2+(1600)Pi, in a relativized pair-creation (^3Po) model which has been developed in a previous study of the NPi decays of the same baryon states. As it is our goal to provide a guide for the possible discovery of new baryon states at CEBAF and elsewhere, we examine the decays of resonances which have already been seen in the partial-wave analyses, along with those of states which are predicted by the quark model but which remain undiscovered. The level of agreement between our calculation and the available widths from the partial-wave analyses in encouraging.
Download or read book New Baryons in The And Channels written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The decays of excited nonstrange baryons into the final states?? and?? are examined in a relativized quark pair creation model. The wavefunctions and parameters of the model are fixed by previous calculations of N? and N??, etc., decays through various quasi-two body channels including N? and N?. The results show that the combination of thresholds just below the region of interest and the isospin selectivity of these channels should allow the discovery of several new baryons in such experiments.
Download or read book Baryons 95 Proceedings Of The 7th International Conference On The Structure Of Baryons written by Benjamin F Gibson and published by World Scientific. This book was released on 1996-09-20 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference focused on the current status of baryon spectroscopy, form factors and structure functions, electroweak interactions and symmetries, strange and exotic states, chiral perturbation theory, heavy quark physics, and medium modifications, through plenary session summaries and reviews and parallel session reports of recent experimental and theoretical advances. Plans for future facilities and upgrades were highlighted in special plenary sessions.
Download or read book NSTAR 2005 written by Simon Capstick and published by World Scientific. This book was released on 2006 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together experts on the quark-gluon structure of matter as it applies to nucleon resonance physics. The contributions discuss the latest findings in areas such as meson production via electromagnetic and hadronic reactions, baryon resonance structure in chiral and lattice QCD approaches, and the extraction of resonance parameters from coupled-channels analysis of data.
Download or read book Nstar 2005 Proceedings Of The Workshop On The Physics Of Excited Nucleons written by Simon Capstick and published by World Scientific. This book was released on 2006-06-08 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together experts on the quark-gluon structure of matter as it applies to nucleon resonance physics. The contributions discuss the latest findings in areas such as meson production via electromagnetic and hadronic reactions, baryon resonance structure in chiral and lattice QCD approaches, and the extraction of resonance parameters from coupled-channels analysis of data.
Download or read book Decays of Non strange Positive Parity Excited Baryons in the 1 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The decays of non-strange positive parity baryons via emission of a pseudo-scalar meson are studied in the framework of the 1/Nc expansion to order 1/Nc. In particular, the pionic decays of the l=0 Roper baryons and of the l=2 baryons in the mass interval 1680-1950 MeV are analyzed using the available partial decay widths. Decay widths by emission of an eta meson are shown to be suppressed by a factor 1/Nc2 with respect to the pionic ones.
Download or read book Strange Decays of Nonstrange Baryons written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The strong decays of excited nonstrange baryons into the final states [Lambda]K, [Sigma]K, and for the first time into [Lambda](1405)K, [Lambda](1520)K, [Sigma](1385)K, [Lambda]K{sup *}, and [Sigma]K{sup *}, are examined in a relativized quark pair creation model. The wave functions and parameters of the model are fixed by previous calculations of N[pi] and N[pi][pi], etc., decays. The results show that it should be possible to discover several new negative parity excited baryons and confirm the discovery of several others by analyzing these final states in kaon production experiments. They also establish clear predictions for the relative strengths of certain states to decay to [Lambda](1405)K and [Lambda](1520)K, which can be tested to determine if a three-quark model of the [Lambda](1405)K is valid. The authors results compare favorably with the results of partial wave analyses of the limited existing data for the [Lambda]K and [Sigma]K channels. They do not find large [Sigma]K decay amplitudes for a substantial group of predicted and weakly established negative-parity states, in contrast to the only previous work to consider decays of these states into the strange final states [Lambda]K and [Sigma]K.
Download or read book N Physics and Nonperturbative Quantum Chromodynamics written by Silvano Simula and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Workshop N* Physics and non-perturbative QeD was held at the Eu ropean Center for Theoretical Studies and Related Areas (ECT*) in Trento, Italy, during May 18-29, 1998. Previous workshops of the series on N* Physics took place at the Florida State University (1994), at CEBAF (1995), at the Institute for Nuclear Theory in Seattle (1996) and at the George Washington University (1997). The Workshop was devoted to a summary of recent experimental and the oretical research on N* phsyics and special emphasis was given to the infor mation that photo-and electro-production of nucleon resonances can provide on the non-perturbative regime of Quantum Chromodynamics. The idea was to stimulate discussions among experimentalists and theoreticians in order to pursue the interpretation of the huge amount of forthcoming data from several laboratories in the world. It was therefore decided to have both experimental and theoretical lectures on the main topics, like ,among the others, single and double pion production, TJ-and K-meson production, the GDH sum rule, the spin of the proton, etc. Thanks to the unusual two-week extension of the Work shop, the allotted time for the lectures was extended up to one hour in order to allow the invited lecturers to give a detailed presentation of their topics. Fi nally, various short contributions were selected to sharpen the discussion about selected items.
Download or read book Decays of J written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results for the decays of psi(3100) into baryon and hyperon final states. The sample studied here consists of 1.3 million produced psi decays. The decays into nonstrange baryons agree well with currently established results, but with better statistics. In addition, significant resonance formation in multibody final states is observed. The decay psi .-->. anti pp.gamma., the first direct photon decay of the psi involving baryons in the final state, is presented and the theoretical implications of the decays are briefly explored. Several new decays of the psi involving strange baryons are explored, including the first observations of three body final states involving hyperons. The I-spin symmetry of the strong decay psi .-->. baryons has clearly been observed. The reduced matrix elements for psi .-->. B anti B are presented for final states of different SU(3) content. The B anti B results are in excellent agreement with the psi being an SU(3) singlet as are the results for psi .-->. B10 anti B10. We present the first evidence for the SU(3) violating decays of the type psi .-->. B8 anti B10 + c.c. Angular distributions for psi .-->. B8 anti B8 are presented and compared with theoretical predictions. Statistics are limited, but the data tends to prefer other than a 1 + Cos2theta distribution.
Download or read book Nstar 2004 Proceedings Of The Workshop On The Physics Of Excited Nucleons written by Viatcheslav Kouznetsov and published by World Scientific. This book was released on 2004-11-23 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers recent advances in the field of nucleon resonances presented at the IX International Workshop on the Physics of Excited Baryons, NSTAR2004. A complete overview of the most recent experimental results obtained worldwide on baryon spectroscopy is presented together with theoretical progress on related topics ranging from resonance parameters extraction to lattice-QCD calculations through effective field theory. Of particular interest, a large part of the book is devoted to exotic states with quantum numbers of pentaquarks, whose recent discovery represents a new chapter in hadronic physics.The proceedings have been selected for coverage in:• Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)• CC Proceedings — Engineering & Physical Sciences
Download or read book New Baryons in the Delta eta and Delta omega Channels written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The decays of excited nonstrange baryons into the final states [Delta][eta] and [Delta][omega] are examined in a relativized quark pair creation model. The wavefunctions and parameters of the model are fixed by previous calculations of N[pi] and N[pi][pi], etc., decays through various quasi-two body channels including N[eta] and N[omega]. The results show that the combination of thresholds just below the region of interest and the isospin selectivity of these channels should allow the discovery of several new baryons in such experiments.
Download or read book Hadron Spectroscopy and the Confinement Problem written by D.V. Bugg and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This meeting on Hadron Spectroscopy and the Confinement Problem took place from June 27 to July 8, 1995. The first four days were at Queen Mary and Westfield College, London and the last six at the University College of Swansea, Wales. The reason for the split sites was a question of accomodating the 54 students and 12 lecturers. However, it was enjoyed by all concerned, providing the opportunity to sample the nightlife of London one week and enjoy the delightful coastal area around Swansea the following week. The meeting immediately preceded the Hadron '95 conference in Manchester. The contents of this volume run roughly parallel to the order of the lectures. Martin Faessler's brief and that of Madjid Boutemeur was to review experimental tech niques as well as physics results. We have tried to review all the areas which are currently active experimentally. This means mostly Light Meson Spectroscopy. However, Simon Capstick gave us a welcome review of Baryon Spectroscopy and the coming CEBAF program. This is an opportunity to thank NATO for their generous financial support, and also the two host institutions for excellent coordination and an enjoyable stay.
Download or read book Final State Interactions in Strong Two body Baryon Decays written by and published by . This book was released on 2014 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies of Charmless Two Body Quasi Two Body and Three Body B Decays written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary results are presented on a search for several exclusive charmless hadronic B decays, from data collected by the BABAR detector near the [Upsilon](4S) resonance. These include two-body decay modes h{sup {+-}}h{sup {-+}}, three-body decay modes with final states h{sup {+-}}h{sup {-+}}h{sup {+-}} and h{sup {+-}}h{sup {-+}}[pi]°, and quasi-two-body decay modes with final states X°h and X°K{sub s}°, where h = [pi] or K and X° = [eta]' or [omega]. The measurement of branching fractions for four decay modes, and upper limits for nine modes are presented.
