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Author : Matthew Graham
Publisher :
ISBN 13 :
Total Pages : 278 pages
Book Rating : 4.:/5 (319 download)
Download or read book The Two Photon Decay of the X0 State of Charmonium written by Matthew Graham and published by . This book was released on 2002 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Two Photon Decays of Charmonia from Lattice QCD. written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We make the first calculation in lattice QCD of two-photon decays of mesons. Working in the charmonium sector, using the LSZ reduction to relate a photon to a sum of hadronic vector eigenstates, we compute form-factors in both the space-like and time-like domains for the transitions [eta]{sub c} → [gamma]*[gamma]* and [chi]{sub c0} → [gamma]*[gamma]*. At the on-shell point we find approximate agreement with experimental world-average values.
Author : Roger Fulton
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (339 download)
Download or read book Two-Photon Production of Charmonium States written by Roger Fulton and published by . This book was released on 1995 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christopher Walz
Publisher : Springer
ISBN 13 : 3319271830
Total Pages : 169 pages
Book Rating : 4.3/5 (192 download)
Download or read book The Two-Photon Decay of the 11-/2 Isomer of 137Ba and Mixed-Symmetry States of 92,94Zr and 94Mo written by Christopher Walz and published by Springer. This book was released on 2015-12-24 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work focuses on new electromagnetic decay mode in nuclear physics. The first part of the thesis presents the observation of the two-photon decay for a transition where the one-photon decay is allowed. In the second part, so called quadrupole mixed-symmetry is investigated in inelastic proton scattering experiments. In 1930 Nobel-prize winner M. Goeppert-Mayer was the first to discuss the two-photon decay of an exited state in her doctoral thesis. This process has been observed many times in atomic physics. However in nuclear physics data is sparse. Here this decay mode has only been observed for the special case of a transition between nuclear states with spin and parity quantum number 0+. For such a transition, the one-photon decay – the main experimental obstacle to observe the two-photon decay – is forbidden. Furthermore, the energy sharing and angular distributions were measured, allowing conclusions to be drawn about the multipoles contributing to the two-photon transition. Quadrupole mixed-symmetry states are an excitation mode in spherical nuclei which are sensitive to the strength of the quadrupole residual interaction. A new signature for these interesting states is presented which allows identification of mixed-symmetry states independently of electromagnetic transition strengths. Furthermore this signature represents a valuable additional observable to test model predictions for mixed-symmetry states.
Author : Jasper Kirkby
Publisher : Atlantica Séguier Frontières
ISBN 13 : 9782863321492
Total Pages : 870 pages
Book Rating : 4.3/5 (214 download)
Download or read book Third Workshop on the Tau-Charm Factory written by Jasper Kirkby and published by Atlantica Séguier Frontières. This book was released on 1994 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Two Photon Production of Charm States - a Charmonium Calculation written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The comparison of the nonrelativistic multichannel calculation with the double Rutherford process shows that duality is satisfied, in the sense that if one averages the actual cross sections for a wide enough range of W one gets the same result as for nonstrongly interacting point like quarks. It has been shown for the case of ee− annihilation that duality in this sense follows from nonrelativistic potential models; and it has been verified that this proof can be extended to two-photon processes.
Author : Mirko Mušič
Publisher :
ISBN 13 :
Total Pages : 85 pages
Book Rating : 4.:/5 (632 download)
Download or read book Search for the two-photon decay of the 2+ first excited states in O and Si 18O and 28Si written by Mirko Mušič and published by . This book was released on 1985 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wenqing Shen
Publisher : World Scientific
ISBN 13 : 9813201207
Total Pages : 564 pages
Book Rating : 4.8/5 (132 download)
Download or read book Heavy Ion Physics And Application - International Symposium written by Wenqing Shen and published by World Scientific. This book was released on 1991-03-29 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings covers current research work by experts in the following aspects:
![Download Search for the two-photon decay of the 2+ first excited states in 18O [hoch 18 O] and 28Si [hoch 28 Si] PDF Online Free](https://books.google.com/books/content/images/frontcover/w0guHAAACAAJ?fife=w200-h370)
Author : Mirko Mušič
Publisher :
ISBN 13 :
Total Pages : 85 pages
Book Rating : 4.:/5 (246 download)
Download or read book Search for the two-photon decay of the 2+ first excited states in 18O [hoch 18 O] and 28Si [hoch 28 Si] written by Mirko Mušič and published by . This book was released on 1986 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 644 pages
Book Rating : 4.X/5 (1 download)
Download or read book Soviet Journal of Nuclear Physics written by and published by . This book was released on 1990 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Charmonium Spectroscopy from Radiative Decays of the J/[psi] and [psi]ʹ PDF Online Free](https://books.google.com/books/content/images/frontcover/JnYgAQAAIAAJ?fife=w200-h370)
Author : John Erthal Gaiser
Publisher :
ISBN 13 :
Total Pages : 428 pages
Book Rating : 4.F/5 ( download)
Download or read book Charmonium Spectroscopy from Radiative Decays of the J/[psi] and [psi]ʹ written by John Erthal Gaiser and published by . This book was released on 1983 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A.J. Finch
Publisher : American Inst. of Physics
ISBN 13 : 9780735400108
Total Pages : 510 pages
Book Rating : 4.4/5 (1 download)
Download or read book Photon 2000 written by A.J. Finch and published by American Inst. of Physics. This book was released on 2001-09-21 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference covers recent experimental and theoretical advances in the study of the nature of photons at high energy. These photons are studied at large particle accelerators, such as the LEP accelerator based in Geneva, Switzerland, and the HERA accelerator in Hamburg, Germany. The prospects for this work at planned future accelerators are also described.
Author : D Page
Publisher : World Scientific
ISBN 13 : 9814549851
Total Pages : 570 pages
Book Rating : 4.8/5 (145 download)
Download or read book Particle Physics And Cosmology - Proceedings Of The Ninth Lake Louise Winter Institute written by D Page and published by World Scientific. This book was released on 1995-02-22 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume explores the recent trends in particle physics and cosmology. The invited lecturers include D Caldwell, A Linde, A B MacDonald, J Peebles, K Rolfs and D Schramm.
Download or read book Radiative Decays of the Psi Prime to All-photon Final States written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of studies of selected radiative decays of the psi' to charmonium and non-charmonium states which decay into photons are presented. These studies were performed using a sample of 1.8 x 106 produced psi''s collected by the Crystal Ball detector at the SPEAR electron-positron storage ring. The branching ratios of the chi0, chi2, and eta'/sub c/ to two photons have been measured to be (4.5 +- 2.2 +- 2.0) x 10−4, (9.5 +- 2.9 +- 4.5) x 10−4 (first errors statistical, second systematic), and 1 x 10−2 (90% C.L.). The signal from the decay chain psi' .--. .gamma.chi0, chi0 .-->. .pi.°.pi.° has been observed with essentially no background. Using the observed line shape of the radiative photon in this reaction, the full width of the psi0 has been found to be 8.8 +- 1.3 +- 1.5 MeV/c2. In addition, the branching ratios of the chi0 and chi2 to .pi.°.pi.° have been measured to be (3.5 +- 0.3 +- 1.2) x 10−3 and (1.2 +- 0.2 +- 0.4) x 10−3; the branching ratios of the chi0 and chi2 to eta eta have been measured to be (2.8 +- 0.9 +- 1.3) x 10−3 and (8.4 +- 4.2 +- 4.0) x 10−4. The decays of the psi' to four non-charmonium states have been investigated. The branching ratios and upper limits of these decays have been normalized to the branching ratios of the corresponding decays from the J/psi which have been measured using a sample of 2.2 x 106 produced J/psi's collected by the Crystal Ball detector. The ratios of the psi' branching ratios to the J/psi branching ratios for the final states .gamma.eta, .gamma.eta', .gamma.theta, and .gamma.f have been measured to be
Author : Juliet Lee-Franzini
Publisher : World Scientific
ISBN 13 : 9789810248802
Total Pages : 672 pages
Book Rating : 4.2/5 (488 download)
Download or read book XX International Symposium on Lepton and Photon Interactions at High Energies written by Juliet Lee-Franzini and published by World Scientific. This book was released on 2002 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book covers topics that are of major interest to the high energy physics community, including the most recent results from flavour factories, dark matter and neutrino physics. In addition, it considers future high energy machines.
Author : M M Block
Publisher : World Scientific
ISBN 13 : 9814550841
Total Pages : 650 pages
Book Rating : 4.8/5 (145 download)
Download or read book Multiparticle Dynamics - Proceedings Of The Xxiii International Symposium written by M M Block and published by World Scientific. This book was released on 1994-04-26 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: This international meeting on ultrahigh energy multiparticle phenomena started with a summary of neutrino physics, followed by a detailed review of LEP results. It moved on to the fast-breaking field of rapidity gaps, hard pomeron and small-x structure functions at both Hera and the FermiLab Tevatron. The major collider experiments at FermiLab, and in particular, the results of the top quark search were presented in complete detail. The fields of intermittency, multiplicities, correlation functions, heavy quarks, soft and semihard hadronic physics, and the particle physics aspects of cosmic rays were subjects of spirited debate.
Author : Fabio Bossi
Publisher : World Scientific
ISBN 13 : 9814489239
Total Pages : 661 pages
Book Rating : 4.8/5 (144 download)
Download or read book Lepton-photon 01 - Proceedings Of The Xx International Symposium On Lepton And Photon Interactions At High Energies written by Fabio Bossi and published by World Scientific. This book was released on 2002-08-08 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book covers topics that are of major interest to the high energy physics community, including the most recent results from flavour factories, dark matter and neutrino physics. In addition, it considers future high energy machines.
