Leading particles and diffraction dissociation in 150-GeV/c π-p interactions
Creators
- Brick, D.1
- Fong, D.1
- Heller, M.1
- Shapiro, A.M.1
- Widgoff, M.1
- Bruyant, F.1
- Lucas, P.1
- Bogert, D.1
- Johnson, M.1
- Burnstein, R.1
- Fu, C.1
- Petersen, D.1
- Robertson, D.1
- Rubin, C.1
- Sard, R.1
- Snyder, A.1
- Tortora, J.1
- Alyea, E.D. Jr.1
- Chien, C.1
- Pevsner, A.1
- Zdanis, R.1
- Barriero, F.1
- Benary, O.1
- Brau, J.F.1
- Grunhaus, J.1
- Hafen, A.S.1
- Hulsizer, R.I.1
- Karshon, U.1
- Kistiakowsky, V.1
- Levy, A.1
- Napier, A.1
- Pless, I.A.1
- Silvermann, J.P.1
- Trepagnier, P.C.1
- Wolfson, J.1
- Yamamoto, R.K.1
- Cohn, H.O.1
- Jacques, P.F.1
- Ou, T.C.1
- Plano, R.J.1
- Watts, T.L.1
- Brucker, E.1
- Koller, E.L.1
- Stamer, P.E.1
- Taylor, S.1
- Bugg, W.1
- Condo, G.1
- Handler, T.1
- Hart, E.1
- Kraybill, H.1
- Ljung, D.1
- Ludlam, I.1
- Taft, C.D.1
- 1. Brown University, Providence, Rhode Island 02912
Description
Diffraction dissociation of both the beam and target particles has been observed in 150-GeV/c π-p interactions in the Fermilab 30-in.-bubble-chamber--proportional-wire-chamber hybrid spectrometer. The dissociations are observed as recoil systems opposite leading particles, the signals of which are separated from background where appropriate by a variant of the Van Hove sector cut, thus allowing the high-mass portion of the spectrum to be observed. Pion dissociation has a cross section of 1758 +- 105 μb, divided among two-, four-, and six-prong events; some rho0 production is seen and comes primarily from the π- → 2π-π+ channel. The proton dissociation cross section is 1726 +- 100 μb, again divided among two-, four-, and six-prong events. The final state contains a neutron more frequently than a proton in the two- and six-prong events, a proton more frequently in the four-prong events. Production of Δ++ is observed in the p → pπ+π- dissociations
Additional details
Publishing Information
- Journal Title
- Phys. Rev., D
- Journal Volume
- 21
- Journal Issue
- 7
- Series
- Phys. Rev., D.
- Journal Page Range
- 1726-1743
- ISSN
- 0556-2821
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11550999
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BUBBLE CHAMBERS; CROSS SECTIONS; DELTA-1236 RESONANCES; DIFFRACTION MODELS; GEV RANGE 100-1000; MULTIPLICITY; MULTIWIRE PROPORTIONAL CHAMBER; PARTICLE PRODUCTION; PION MINUS-PROTON INTERACTIONS; QUANTUM NUMBERS; RECOILS; RHO-765 RESONANCES
- Descriptors DEC
- BARYON RESONANCES; BARYONS; BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GAS TRACK DETECTORS; GEV RANGE; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; MESON RESONANCES; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MESONS; N*RESONANCES; PARTICLE INTERACTIONS; PARTICLE MODELS; PION-NUCLEON INTERACTIONS; PION-PROTON INTERACTIONS; PROPORTIONAL COUNTERS; RADIATION DETECTORS; RESONANCE PARTICLES