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Weddigen, C.
Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik1980
Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik1980
AbstractAbstract
[en] Using new data on the unpolarized differential cross section for the reaction pp → πd, obtained by the NESIKA collaboration at SIN, the energy dependence of the anisotropy parameters γ0, γ2, and γ4 is interpreted phenomenologically. Especially the energy dependence of γ4, which is stronger than predicted theoretically, could be understood as being due to the behaviour of a production amplitude with lsub(π) = 3 near threshold. Technical details are given in Appendix A,B, and C. (orig.)
[de]
Unter Verwendung neuer Daten ueber den unpolarisierten differentiellen Wirkungsquerschnitt fuer die Reaktion pp → πd, die von der NESIKA Kollaboration am SIN gewonnen wurden, wird die Energieabhaengigkeit der Anisotropieparameter γ0, γ2 und γ4 phenomenologisch interpretiert. Insbesondere koennte die Energieabhaengigkeit von γ4, die staerker ist als theoretisch vorhergesagt, durch das Schwellenverhalten einer Produktionsamplitude mit lsub(π) = 3 verstanden werden. Technische Details sind in den Anhaengen A, B und C beschrieben. (orig.)Primary Subject
Secondary Subject
Source
Jul 1980; 14 p
Record Type
Report
Report Number
Country of publication
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INIS VolumeINIS Volume
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Weddigen, C.
Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik1977
Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik1977
AbstractAbstract
[en] Up to now the reaction p + p → π+ + d has been investigated with an unpolarized target. The experimental knowledge of the differential cross section is briefly reviewed. Expressions are given for the differential cross section, using also a polarized target, and information obtained from such an experiment on production amplitudes is discussed. For proton lab. energies up to 1 GeV only pion partial s, p and d waves are supposed to be effective. The seven kinematically permissible production amplitudes can be fully determined from differential cross section measurements using polarized beam and target if only two deuteron vector polarizations without polarized target are determined in addition. Some solid angle restrictions for 'usual' dynamically polarized targets are discussed. (orig.)
[de]
Bisher wurde die Reaktion p + p → π+ + d nur mit unpolarisierten Targets untersucht. Die experimentelle Kenntnis des differentiellen Wirkungsquerschnitts wird kurz dargestellt. Ausdruecke fuer den differentiellen Wirkungsquerschnitt bei Verwendung eines polarisierten Targets werden angegeben und die von solchen Messungen zu erwartenden Informationen ueber die Produktionsamplituden diskutiert. Dabei wird angenommen, dass fuer Protonenenergieen bis zu 1 GeV im Laborsystem nur s-, p- und d-Pionpartialwellen auftreten. Die sieben kinematisch erlaubten Produktionsamplituden koennen vollstaendig durch Messung des differentiellen Wirkungsquerschnitts mit polarisiertem Strahl und polarisiertem Target ermittelt werden, sofern lediglich zwei Deuteronenvektorpolarisationen zusaetzlich bestimmt werden. Schliesslich wird der Einfluss von Raumwinkelbeschraenkungen diskutiert, die bei Verwendung ueblicher dynamisch polarisierter Targets auftreten. (orig.)Primary Subject
Source
Dec 1977; 24 p; 1 fig.; 6 tabs.; 8 refs.
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Fries, D.C.; Matussek, P.; Weddigen, C.
Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik1984
Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik1984
AbstractAbstract
[en] This report surveys the activities in fundamental research from July 1, 1983 to June 30, 1984 at the Institute for Nuclear Physics (IK) of the Kernforschungszentrum Karlsruhe. The research program of this institute comprises laser spectroscopy, nuclear reactions with light ions, neutron physics, neutrino physics and physics at medium and higher energies. (orig.)
[de]
Der vorliegende Bericht gibt einen Ueberblick ueber die Arbeiten am Institut fuer Kernphysik (IK) des Kernforschungszentrums Karlsruhe im Zeitraum vom 1. Juli 1983 bis zum 30. Juni 1984. Das Forschungsprogramm umfasst die Gebiete Laserspektroskopie, Kernreaktionen mit leichten Ionen, Neutronenphysik, Neutrino-Physik, sowie Mittel- und Hochenergiephysik. (orig.)Primary Subject
Source
Oct 1984; 214 p
Record Type
Report
Literature Type
Progress Report
Report Number
Country of publication
ALPHA REACTIONS, ANNIHILATION, ANTIPROTON REACTIONS, ASTROPHYSICS, ATOMS, BIBLIOGRAPHIES, CLUSTER MODEL, ELECTRON-POSITRON INTERACTIONS, FINE STRUCTURE, HADRONIC ATOMS, HYPERFINE STRUCTURE, ION SOURCES, KARLSRUHE CYCLOTRON, LASER SPECTROSCOPY, LITHIUM 6 REACTIONS, MAGNETIC SPECTROMETERS, NEUTRINO OSCILLATION, NEUTRON REACTIONS, NUCLEAR ELECTRIC MOMENTS, NUCLEAR PHYSICS, NUCLEAR RADII, PHOTON-PHOTON INTERACTIONS, PION REACTIONS, POLARIZED TARGETS, PROTON-PROTON INTERACTIONS, QUADRUPOLE MOMENTS, RADIATION DETECTORS, REVIEWS, TARGET CHAMBERS
ACCELERATOR FACILITIES, ACCELERATORS, ANTINUCLEON REACTIONS, BARYON REACTIONS, BARYON-BARYON INTERACTIONS, BASIC INTERACTIONS, CYCLIC ACCELERATORS, CYCLOTRONS, DOCUMENT TYPES, ELECTRIC MOMENTS, ELECTROMAGNETIC INTERACTIONS, HADRON REACTIONS, HADRON-HADRON INTERACTIONS, HEAVY ION REACTIONS, INTERACTIONS, ISOCHRONOUS CYCLOTRONS, LEPTON-LEPTON INTERACTIONS, MATHEMATICAL MODELS, MEASURING INSTRUMENTS, MESON REACTIONS, NUCLEAR MODELS, NUCLEAR PROPERTIES, NUCLEAR REACTIONS, NUCLEON REACTIONS, NUCLEON-NUCLEON INTERACTIONS, PARTICLE INTERACTIONS, PHYSICS, SPECTROMETERS, SPECTROSCOPY, TARGETS
Reference NumberReference Number
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AbstractAbstract
No abstract available
Original Title
Spin-Bahn oder Pauli-Prinzip
Primary Subject
Source
6 figs; 6 refs.
Record Type
Journal Article
Journal
KFK Nachrichten; v. 5(1); p. 29-34
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Berdoz, A.; Favier, B.; Foroughi, F.; Weddigen, C.
Annual report on nuclear physics activities from July 1, 1982 - June 30, 19831983
Annual report on nuclear physics activities from July 1, 1982 - June 30, 19831983
AbstractAbstract
No abstract available
Primary Subject
Source
Gemmeke, H.; Kaeppeler, F.; Weddigen, C. (eds.); Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik; 229 p; Nov 1983; p. 113-114; Published in summary form only.
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
BARYON-BARYON INTERACTIONS, BARYONS, BEAMS, CATIONS, CHARGED PARTICLES, DATA, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, HADRON-HADRON INTERACTIONS, HADRONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, INFORMATION, INTERACTIONS, IONS, MEV RANGE, NUCLEON-NUCLEON INTERACTIONS, NUCLEONS, NUMERICAL DATA, PARTICLE INTERACTIONS, SCATTERING
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The analyzing power, Ayo, of the reaction pp → π+d has been measured to an accuracy of about 1% at 4 energies between 500 and 600 MeV at S.I.N. Pions and deuterons were detected in coincidence with scintillation detectors, using TOF techniques for event identification. Asymmetry results show considerable energy dependence in magnitude and shape. Final results have been fit, together with precise differential cross section data which were corrected for multiple scattering, pion decay, and muon detection. Numerical values of Legendre polynomial coefficients to describe Ayo and the differential cross section are presented. 2 references, 1 figure, 1 table
Primary Subject
Source
5. international symposium on high energy spin physics; Upton, NY (USA); 16-22 Sep 1982; CONF-820941--
Record Type
Journal Article
Literature Type
Conference; Numerical Data
Journal
Country of publication
ANGULAR MOMENTUM, BEAMS, DIFFERENTIAL CROSS SECTIONS, EXPERIMENTAL DATA, HIGH ENERGY PHYSICS, INELASTIC SCATTERING, MAGNETIC MOMENTS, MEETINGS, MEV RANGE 100-1000, PARTICLE PROPERTIES, POLARIZATION-ASYMMETRY RATIO, POLARIZED BEAMS, POLARIZED PRODUCTS, POLARIZED TARGETS, PROTON-PROTON INTERACTIONS, SPIN, SPIN ORIENTATION, SYMMETRY, TIME-OF-FLIGHT METHOD
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The authors have measured the analysing power of elastic proton-proton scattering at 582 MeV for 14 angles from 20 to 800 CM. The angular range was limited to >200 by the energy loss of the recoil protons. The experiment was performed at the PM1 beam line at SIN. A beam intensity of about 108 particles s-1 was used. (Auth.)
Primary Subject
Record Type
Journal Article
Literature Type
Numerical Data
Journal
SIN (Schweizerisches Institut fuer Nuklearforschung) Newsletter; (no.16); p. 41-43
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Besset, D.; Do, Q.H.; Favier, B.; Greeniaus, L.G.; Hess, R.; Lechanoine, C.; Rapin, D.; Warren, D.W.; Weddigen, C.
Meeting on Saturne II. Aussois, 3-7 October 19771978
Meeting on Saturne II. Aussois, 3-7 October 19771978
AbstractAbstract
[en] The Wolfenstein parameters P, D, R, and A for 20<=theta(lab)<=150 have been measured at incident proton kinetic energies of 310, 390, 490 and 590 MeV. The experiment was performed at SIN, using multiwire proportional chambers placed directly in a polarized proton beam. Preliminary results are presented for 20<=theta(lab)<=80. Qualitatively good agreement with phase shift predictions is observed
Primary Subject
Source
Laboratoire National Saturne, Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France); p. 21-39; ISBN 2-7272-0030-7; 
; 1978; p. 21-39; Meeting on Saturne II; Aussois, France; 3 - 7 Oct 1977
; 1978; p. 21-39; Meeting on Saturne II; Aussois, France; 3 - 7 Oct 1977
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Chatelain, P.; Favier, B.; Foroughi, F.; Piffaretti, J.; Jaccard, S.; Walden, P.; Hoftiezer, J.; Weddigen, C.
Annual report on nuclear physics activities from July 1, 1982 - June 30, 19831983
Annual report on nuclear physics activities from July 1, 1982 - June 30, 19831983
AbstractAbstract
No abstract available
Primary Subject
Secondary Subject
Source
Gemmeke, H.; Kaeppeler, F.; Weddigen, C. (eds.); Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Inst. fuer Kernphysik; 229 p; Nov 1983; p. 109-111; Published in summary form only.
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
BARYON REACTIONS, BARYON-BARYON INTERACTIONS, BEAMS, BOSONS, CHARGED PARTICLES, CROSS SECTIONS, DATA, ELEMENTARY PARTICLES, ENERGY RANGE, FUNCTIONS, HADRON REACTIONS, HADRON-HADRON INTERACTIONS, HADRONS, INFORMATION, INTERACTIONS, MESONS, MEV RANGE, NUCLEAR REACTIONS, NUCLEON REACTIONS, NUCLEON-NUCLEON INTERACTIONS, NUMERICAL DATA, PARTICLE INTERACTIONS, PIONS, POLYNOMIALS, PSEUDOSCALAR MESONS, TARGETS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The analysing power Asub(yO) of elastic proton-proton scattering has been measured at 582 MeV for 14 angles from 20 to 800 CM. (author)
Primary Subject
Record Type
Journal Article
Literature Type
Numerical Data
Journal
Journal of Physics. G, Nuclear Physics; ISSN 0305-4616; ; v. 9(12); p. L261-L265
; v. 9(12); p. L261-L265
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
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