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AbstractAbstract
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Original Title
Analyse der Dip-Struktur in der πp Streuung bei hohen Energien
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Conferences on nuclear physics - particle physics; Karlsruhe, Germany, F.R; 22 - 27 Mar 1982; Published in summary form only.
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Journal Article
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Conference
Journal
Verhandlungen der Deutschen Physikalischen Gesellschaft; ISSN 0420-0195;
; v. 17(8); p. 1410-1411

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AbstractAbstract
No abstract available
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Tran Thanh Van, J. (ed.); Paris-11 Univ., 91 - Orsay (France). Lab. de Physique Theorique et Particules Elementaires; p. 451-462; nd; Universite Paris-11, Lab. de Physique Theorique et Particules elementaires; Orsay, France; 8. Rencontre de Moriond; Meribel-les-Allues, France; 04 Mar 1973
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Book
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AbstractAbstract
[en] Two new methods for determining the coupling constant g are proposed: dispersion relations and integral equalities with a damping function, due to the introduction of which they are practically finite-energy; that enables one to determine the constant g more accurately and reliably. It is shown that the amplitude of forward π+ p scattering has only two zeroes in the complex E-plane outside cuts. Two theorems are proved, which establish new conventional exiomatic boundaries: the lower one for [dsigma1(E)/dΩ][dsigma2(E)/dΩ] and the upper one for [sigma1(E)sigma2(E)]/[sigma3(E)dΩ]. The second boundary is a specific generalization of the Pomeranchuk theorem
Original Title
Novye integral'nye aksiomaticheskie ogranicheniya na amplitudu rasseyaniya adronov
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Source
24 refs.; for English translation see the journal Ukr. Phys. J.
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Journal Article
Journal
Ukrainskij Fizicheskij Zhurnal; v. 22(8); p. 1283-1292
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[en] The study of the π-p → ρ0n and π-p → ωn amplitudes close and below the vector meson production threshold (1.2<√(s)<1.8 GeV) reveals a rich dynamics arising from the presence of specific baryon resonances in this energy range. The interference pattern of the e+e- decays of the ρ0- and ω-mesons produced in π-p reactions reflects directly this dynamics. We discuss this interference pattern in the π-p → e+e-n reaction as function of the total center of mass energy √(s). We emphasize the importance of an experimental study of this reaction, which could be made with the HADES detector and the available pion beam at GSI. (orig.)
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Source
Buballa, M.; Noerenberg, W.; Schaefer, B.J.; Wambach, J. (eds.); Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany); 346 p; ISSN 0720-8715;
; Mar 2000; p. 170-176; Hirschegg 2000: 28. international workshop on Gross properties of nuclei and nuclear excitation - hadrons in dense matter; Hirschegg (Austria); 16-22 Jan 2000; Available from TIB Hannover: RN 5605(28); 9 refs.

Record Type
Miscellaneous
Literature Type
Conference
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BARYON RESONANCES, INTERFERENCE PATTERN, MESON LEPTONIC DECAY, MESON PRODUCTION, NEUTRON PRODUCTION, NUCLEAR MATTER, OMEGA DECAY INTO POSITRON+ELECTRON, OMEGA MESON PRODUCTION, OMEGA MESONS, PAIR PRODUCTION, PION-+PROTON PRODUCING OMEGA+NEUTRON, PION-+PROTON PRODUCING POSITRON+ELECTRON+NEUTRON, PION-+PROTON PRODUCING RHO0+NEUTRON, PION-PROTON INTERACTIONS, QUANTUM INTERFERENCE, RHO MESONS, RHO0 DECAY INTO POSITRON+ELECTRON, RHO0 MESON PRODUCTION, VECTOR MESON PRODUCTION THRESHOLD
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AbstractAbstract
No abstract available
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Source
2. International conference on elementary particles; Aix-en-Provence, France; 06 Sep 1973
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Journal Article
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Conference
Journal
J. Phys. (Paris), Colloq; (no.1); p. 303-304
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AbstractAbstract
[en] The uncertainty principle provides the optimal lower bound on the mean square orbital angular momentum for any two-body system in terms of its angular distribution. Lower bound on the mean square total angular momentum is also given
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Journal Article
Journal
Lett. Nuovo Cim; v. 19(7); p. 256-260
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AbstractAbstract
No abstract available
Original Title
Protsessy mezon-barionnogo rasseyaniya s perezaryadkoj i narushenie obmennogo vyrozhdeniya
Primary Subject
Source
Short note. For English translation see the journal Ukrainian Physics Journal (USA).
Record Type
Journal Article
Journal
Ukrainskij Fizicheskij Zhurnal; ISSN 0503-1265;
; v. 27(12); p. 1870-1872

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[en] The question of the existence of the soft-photon expansion and its connection with the derivation of the soft-photon theorem is studied. We find that the soft-phonon expansion does not necessarily exist for all possible bremsstrahlung cross sections, and if such an expansion does not exist for some types of cross section, then the soft-photon theorem cannot be derived for them. We define two different classes of bremsstrahlung cross section for our study, which we call the H-type cross section and the R-type cross section. We find that the R-type cross section can be expanded in powers of k (photon momentum) with all coefficients of the expansion which are independent of k, while the H-type cross section can only have an expansion whose coefficients are all functions of k. Moreover, we have shown that those coefficients which are functions of k must necessarily contain off-shell parameters. Therefore, we conclude that the soft-photon expansion exists and hence the soft-photon theorem can be derived only for the R-type cross section. This strongly implies that the R-type cross section is to be preferred for the study of bremsstrahlung processes
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Journal Article
Journal
Physical Review. D, Particles Fields; v. 18(9); p. 3390-3402
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AbstractAbstract
No abstract available
Original Title
Bystryj protsessor dlya otbora sobytij uprugogo rasseyaniya
Source
Komenskeho Univ., Bratislava (Czechoslovakia); 114 p; 1983; p. II/12; 11. international symposium on nuclear electronics; Bratislava (Czechoslovakia); 6-12 Sep 1983; Published in summary form only.
Record Type
Miscellaneous
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Conference
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[en] A simple model of resonance formation and decay in hadronic collisions is studied and compared to the data of the EHS/NA22 Collaboration on π-p interactions. The data indicate a rather short formation time of resonances, about 0.2-0.4 fm/c. (author)
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Source
Csoergoe, T.; Hegyi, S.; Hwa, R.C.; Jancso, G. (eds.); Hungarian Academy of Sciences, Budapest (Hungary). Central Research Inst. for Physics; [64 p.]; 1998; p. 39; 8. international workshop on multiparticle production. Correlation and fluctuations '98; Matrahaza (Hungary); 14-21 Jun 1998
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Report
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