Published July 10, 1986
| Version v1
Journal article
Exclusive production of proton-antiproton pairs in photon-photon collisions
Creators
- Bartel, W.1
- Becker, L.1
- Cords, D.1
- Felst, R.1
- Haidt, D.1
- Knies, G.1
- Krehbiel, H.1
- Laurikainen, P.1
- Magnussen, N.1
- Meinke, R.1
- Naroska, B.1
- Olsson, J.1
- Schmidt, D.1
- Steffen, P.1
- Dietrich, G.2
- Hagemann, J.2
- Heinzelmann, G.2
- Kado, H.2
- Kawagoe, K.2
- Kleinwort, C.2
- Kuhlen, M.2
- Petersen, A.2
- Ramcke, R.2
- Schneekloth, U.2
- Weber, G.2
- Ambrus, K.3
- Bethke, S.3
- Dieckmann, A.3
- Elsen, E.3
- Heintze, J.3
- Hellenbrand, K.H.3
- Komamiya, S.3
- Krogh, J. von3
- Lennert, P.3
- Matsumura, H.3
- Rieseberg, H.3
- Spitzer, J.3
- Wagner, A.3
- Bowdery, C.K.4
- Finch, A.J.4
- Foster, F.4
- Hughes, G.4
- Nye, J.M.4
- Allison, J.5
- Ball, A.H.5
- Barlow, R.J.5
- Chrin, J.5
- Duerdoth, I.P.5
- Greenshaw, T.5
- Loebinger, F.K.5
- Macbeth, A.A.5
- Mills, H.E.5
- Murphy, P.G.5
- Stephens, K.5
- Warming, P.5
- Glasser, R.G.6
- Hill, P.6
- Skard, J.A.J.6
- Wagner, S.R.6
- Zorn, G.T.6
- Cartwright, S.L.7
- Clarke, D.7
- Marshall, R.7
- Middleton, R.P.7
- Kawamoto, T.8
- Kobayashi, T.8
- Takeda, H.8
- Takeshita, T.8
- Yamada, S.8
- JADE-Collaboration
- 1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
- 2. Hamburg Univ. (Germany, F.R.). 2. Inst. fuer Experimentalphysik
- 3. Heidelberg Univ. (Germany, F.R.). Physikalisches Inst.
- 4. Lancaster Univ. (UK)
- 5. Manchester Univ. (UK)
- 6. Maryland Univ., College Park (USA)
- 7. Science and Engineering Research Council, Chilton (UK). Rutherford Appleton Lab.
- 8. Tokyo Univ. (Japan). International Center for Elementary Particle Physics
Description
Total and differential cross sections for exclusive production of proton-antiproton pairs in photon-photon collisions have been measured using the JADE detector at PETRA. The total cross section in the CM angular range vertical strokecos thetasup(*)vertical stroke<0.6 reaches a maximum value of 3.8 nb for a γγ invariant mass of Wsub(γγ) = 2.25 GeV, and decreases rapidly for higher values of Wsub(γγ). In the range 2.0 GeV < Wsub(γγ) < 2.6 GeV the angular distribution is not isotropic. The nucleons are preferentially emitted at large angles to the collision axis. (orig.)
Additional details
Publishing Information
- Journal Title
- Phys. Lett., B
- Journal Volume
- 174
- Journal Issue
- 3
- Series
- Phys. Lett., B.
- Journal Page Range
- 350-356
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 17075961
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANGULAR CORRELATION; ANGULAR DISTRIBUTION; ANISOTROPY; ANTIPROTONS; DIFFERENTIAL CROSS SECTIONS; EFFECTIVE MASS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; ELECTROPRODUCTION; ENERGY DEPENDENCE; EXCITATION FUNCTIONS; EXCLUSIVE INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 01-10; GEV RANGE 10-100; INTEGRAL CROSS SECTIONS; MASS SPECTRA; PAIR PRODUCTION; PHOTON-PHOTON INTERACTIONS; PHOTONS; PHOTOPRODUCTION; POSITRONS; TRANSVERSE MOMENTUM
- Descriptors DEC
- ANTIBARYONS; ANTILEPTONS; ANTIMATTER; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; BASIC INTERACTIONS; BOSONS; CATIONS; CHARGED PARTICLES; CORRELATIONS; CROSS SECTIONS; DATA; DISTRIBUTION; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; LINEAR MOMENTUM; MASS; MASSLESS PARTICLES; MATTER; NUCLEI; NUCLEONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PROTONS; SPECTRA
Optional Information
- Collaborations
- JADE-Collaboration.