Published January 4, 1990
| Version v1
Journal article
A study of pion pair production in the two-photon process
Creators
- Adachi, I.1
- Fujimoto, J.1
- Kajikawa, R.1
- Matsushita, K.1
- Sasayama, N.1
- Shimozawa, K.1
- Sugiyama, A.1
- Suzuki, S.1
- Takahashi, T.1
- Takamure, H.1
- Doser, M.2
- Enomoto, R.2
- Fujii, H.2
- Fujii, K.2
- Ikeda, H.2
- Itoh, R.2
- Iwasaki, H.2
- Kawabata, S.2
- Kichimi, H.2
- Kobayashi, M.2
- Miyamoto, A.2
- Shirahashi, A.2
- Sugahara, R.2
- Tauchi, T.2
- Tsukamoto, T.2
- Uno, S.2
- Yamamoto, A.2
- Yamauchi, M.2
- Fujii, T.3
- Fujiwara, K.3
- Nagai, K.3
- Fujiwara, N.4
- Hayashii, H.4
- Iida, N.4
- Kayahara, Y.4
- Muramatsu, K.4
- Nagira, T.4
- Noguchi, S.4
- Yamashita, S.4
- Yoake, Y.4
- Higashi, S.5
- Kato, Y.5
- Maruyama, A.5
- Okusawa, T.5
- Shimonaka, A.5
- Takahashi, T.5
- Teramoto, Y.5
- Howell, B.6
- Koltick, D.6
- Levine, I.6
- Imanishi, A.7
- Ishii, T.7
- Kato, S.7
- Maruyama, K.7
- Okuno, H.7
- Ukai, K.7
- Iwashiro, K.8
- Nitoh, O.8
- Onodera, S.8
- Takahashi, K.8
- Yoshizawa, J.8
- Kamae, T.9
- Kishida, T.9
- Kusuki, N.9
- Takahashi, T.9
- Yamamoto, S.9
- Ochiai, F.10
- Watanabe, Y.11
- TOPAZ Collaboration
- 1. Nagoya Univ. (Japan). Dept. of Physics
- 2. National Lab. for High Energy Physics, Tsukuba, Ibaraki (Japan)
- 3. Kobe Univ. (Japan). Dept. of Physics
- 4. Nara Women's Univ. (Japan). Dept. of Physics
- 5. Osaka City Univ. (Japan). Dept. of Physics
- 6. Purdue Univ., Lafayette, IN (USA). Dept. of Physics
- 7. Tokyo Univ. (Japan). Inst. for Nuclear Study
- 8. Tokyo Univ. of Agriculture and Technology (Japan). Dept. of Applied Physics
- 9. Tokyo Univ. (Japan). Dept. of Physics
- 10. Tezukayama Univ. (Japan). Faculty of Liberal Arts
- 11. Tokyo Inst. of Tech. (Japan). Dept. of Physics
Description
We studied the e+e-→e+e-π+π- interaction with the untagged two-photon sample obtained bt the TOPAZ detector at the TRISTAN e+e- collider. The sample was taken in the energy region √s=55.0-60.8 GeV. One of the QED backgrounds, e+e-→e+e-e+e-, was clearly removed by the measurement of dE/dx by the TOPAZ-TPC. The π+π- invariant mass spectrum is well reproduced by the f2(1270) resonance, the Born term and their interference. We determined the radiative width of the f2(1270) to be 2.27±0.47(stat.)±0.11(syst.) keV. (orig.)
Additional details
Publishing Information
- Journal Title
- Physics Letters, (Section) B
- Journal Volume
- 234
- Journal Issue
- 1/2
- Series
- Phys. Lett., B.
- Journal Page Range
- 185-190
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 21034359
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BORN APPROXIMATION; DIFFERENTIAL CROSS SECTIONS; EFFECTIVE MASS; ELECTRON-POSITRON INTERACTIONS; ELECTRONS; ELECTROPRODUCTION; EXPERIMENTAL DATA; F2-1270 MESONS; GEV RANGE 01-10; GEV RANGE 10-100; HADRONIC PARTICLE DECAY; INTERFERENCE; MASS SPECTRA; PAIR PRODUCTION; PARTICLE WIDTHS; PHOTON-PHOTON INTERACTIONS; PHOTOPRODUCTION; PIONS MINUS; PIONS PLUS; POSITRONS; QUASI-ELASTIC SCATTERING; RADIATIVE DECAY
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BASIC INTERACTIONS; BOSONS; CROSS SECTIONS; DATA; DECAY; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; MASS; MATTER; MESONS; NUCLEAR REACTIONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; SCATTERING; SPECTRA; TENSOR MESONS
Optional Information
- Collaborations
- TOPAZ Collaboration.