Published October 26, 1989
| Version v1
Journal article
Observation of Δ(1232)++ production in e+e- annihilations around 10 GeV
Creators
- Albrecht, H.1
- Glaeser, R.1
- Harder, G.1
- Krueger, A.1
- Nippe, A.1
- Oest, T.1
- Reidenbach, M.1
- Schaefer, M.1
- Schmidt-Parzefall, W.1
- Schroeder, H.1
- Schulz, H.D.1
- Sefkow, F.1
- Wurth, R.1
- Appuhn, R.D.2
- Drescher, A.2
- Hast, C.2
- Herrera, G.2
- Kamp, D.2
- Kolanoski, H.2
- Lange, A.2
- Lindner, A.2
- Mankel, R.2
- Scheck, H.2
- Schweda, G.2
- Spaan, B.2
- Walther, A.2
- Wegener, D.2
- Paulini, M.3
- Reim, K.3
- Volland, U.3
- Wegener, H.3
- Funk, W.4
- Stiewe, J.4
- Werner, S.4
- Gabriel, J.C.5
- Hoelscher, A.5
- Hofmann, W.5
- Khan, S.5
- Spengler, J.5
- Charlesworth, C.E.K.6
- Kutschke, R.6
- Orr, R.S.6
- Parsons, J.A.6
- Prentice, J.D.6
- Seidel, S.C.6
- Swain, J.D.6
- Yoon, T.S.6
- Edwards, K.W.7
- Kapitza, H.7
- Frisken, W.R.8
- MacFarlane, D.B.9
- McLean, K.W.9
- Patel, P.M.9
- Tsipolitis, G.9
- Ball, S.10
- Davis, R.10
- Kwak, N.10
- Ruf, T.11
- Schael, S.11
- Schubert, K.R.11
- Strahl, K.11
- Waldi, R.11
- Weseler, S.11
- Bostjancic, B.12, 13
- Kernel, G.12, 13
- Krizan, P.12, 13
- Kriznic, E.12, 13
- Plesko, M.12, 13
- Cornstroem, H.I.14
- Joensson, L.14
- Nilsson, A.W.14
- Babaev, A.15
- Danilov, M.15
- Fominykh, B.15
- Golutvin, A.15
- Gorelov, I.15
- Lubimov, V.15
- Rostovtsev, A.15
- Semenov, A.15
- Semenov, S.15
- Shevchenko, V.15
- Soloshenko, V.15
- Tchistilin, V.15
- Tichomirov, I.15
- Zaitsev, Yu.15
- Childers, R.16
- Darden, C.W.16
- ARGUS Collaboration
- 1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.)
- 2. Dortmund Univ. (Germany, F.R.). Inst. fuer Physik
- 3. Erlangen-Nuernberg Univ., Erlangen (Germany, F.R.). Physikalisches Inst.
- 4. Heidelberg Univ. (Germany, F.R.). Inst. fuer Hochenergiephysik
- 5. Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany, F.R.)
- 6. Toronto Univ., Ontario (Canada)
- 7. Carleton Univ., Ottawa, Ontario (Canada)
- 8. York Univ., Downsview, Ontario (Canada)
- 9. McGill Univ., Montreal, Quebec (Canada)
- 10. Kansas Univ., Lawrence (USA)
- 11. Karlsruhe Univ. (T.H.) (Germany, F.R.). Inst. fuer Experimentelle Kernphysik
- 12. Ljubljana Univ. (Yugoslavia). Dept. of Physics
- 13. Institut Jozef Stefan, Ljubljana (Yugoslavia)
- 14. Lund Univ. (Sweden). Inst. of Physics
- 15. Institut Teoreticheskoj i Ehksperimental'noj Fiziki, Moscow (USSR)
- 16. South Carolina Univ., Columbia (USA)
Description
We report on the first observation of Δ(1232)++ and anti Δ(1232)++ baryons in e+e- annihilation at energies around 10 GeV, using the ARGUS detector at DORIS II. The sum of the rates of Δ++ and anti Δ++ per hadronic event in the continuum is measured to be 0.040±0.008±0.006, and the rate in direct Υ(1S) decays is 0.124±0.016±0.015. The momentum spectrum od Δ++ baryons in direct Υ(1S) decays has been measured. (orig.)
Additional details
Publishing Information
- Journal Title
- Physics Letters, (Section) B
- Journal Volume
- 230
- Journal Issue
- 1/2
- Series
- Phys. Lett., B.
- Journal Page Range
- 169-174
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 21009172
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANNIHILATION; BRANCHING RATIO; DELTA-1232 BARYONS; EFFECTIVE MASS; ELECTRON-POSITRON INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE 01-10; HADRONIC PARTICLE DECAY; INCLUSIVE INTERACTIONS; INTEGRAL CROSS SECTIONS; MASS SPECTRA; PARTICLE PRODUCTION; PARTICLE WIDTHS; PIONS PLUS; REST MASS; UPSILON-9460 MESONS
- Descriptors DEC
- BARYONS; BOSONS; BOTTOMONIUM; CROSS SECTIONS; DATA; DECAY; DELTA BARYONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MASS; MESONS; N*BARYONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; QUARKONIUM; SPECTRA; VECTOR MESONS
Optional Information
- Contract/Grant/Project number
- Contract BMFT 054DO51P; BMFT 054ER11P(5); BMFT 054HD24P; BMFT 054KA17P
- Collaborations
- ARGUS Collaboration.