+3pi%2B+3pi-+positron+electron%22&type=SU">electron positron --> 3pi+ 3pi- positron electron, rho(770)0: multiplicity, ddc:530, electron positron --> 2rho(770)0 pi+ pi- positron electron, rho(770)0: electroproduction, exchange: two-photon, photon photon: exclusive reaction, pi: multiple production, inelastic scattering [electron positron], pi [multiple production], mass spectrum: (pi+ pi-), bibliography, electron positron --> rho(770)0 2pi+ 2pi- positron electron, colliding beams: electron positron, JADE, multiplicity [rho(770)0], exchange [two-photon], experimental results
| Popis: |
22 pp. (1991).
The reactionγγ→3π+3π- has been studied usig the JADE detector at PETRA. The topological cross sectionσ(γγ→3π+3π-) was measured in the CM energy range 1.5–5.5 GeV. The production ofρ0,s was observed and the average number ofρ0,s per event measured. The contributions of the subprocessesγγ→ρ02π+2π-,γγ→ρ0ρ0π+2π- andγγ→ 3π+3π- (phase space) were studied and 95% C.L. upper limits for the cross sectionσ(γγ→ρ0ρ0π+π- determined. Finally the Bose-Einstein correlation for pairs of like signed pions was observed. A fit to a standard parametrization gave results consistent with other studies of this effect in pion systems. |
| Jazyk: |
English |
| DOI: |
10.3204/pubdb-2022-07311 |
| DOI: |
10.3204/PUBDB-2022-07311 |
| Přístupová URL adresa: |
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bba1fb683ea3be7cf1b7328d3682243 |
| Rights: |
OPEN |
| Přírůstkové číslo: |
edsair.doi.dedup.....4bba1fb683ea3be7cf1b7328d3682243 |
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| Autor: |
Pust, R., Olsson, J., Clarke, D., Dieckmann, A., Duerdoth, I. P., Eckerlin, Guenter, Elsen, E., Felst, R., Finch, A. J., Foster, F., Greenshaw, T., Hagemann, J., Allison, John, Haidt, D., Heintze, J., Heinzelmann, G., Hellenbrand, K. H., Hill, P., Hughes, G., Kado, H., Kawagoe, K., Kleinwort, C., Knies, G., Ambrus, K., Komamiya, S., Krehbiel, H., von Krogh, J., Kuhlen, M., Loebinger, F. K., Macbeth, A. A., Magnussen, N., Marshall, R., Meinke, R., Middleton, R. P., Barlow, Roger J., Murphy, P. G., Naroska, B., Nye, J. M., Ould-Saada, F., Pitzl, D., Ramcke, R., Rieseberg, H., Sato, A., Schmidt, D., Smolik, L., Bartel, W., Schneekloth, U., Skard, J. A. J., Spitzer, J., Steffen, P., Stephens, K., Takeshita, T., Wagner, A., Walker, I. W., Weber, G., Zimmer, M., Bethke, S., Zorn, G. T., JADE Collaboration, Bowdery, C. K., Cartwright, S. L., Chrin, J. |
| Jazyk: |
angličtina |
| Rok vydání: |
1991 |
| Předmět: |
|
| DOI: |
10.3204/pubdb-2022-07311 |
| Popis: |
22 pp. (1991).
The reactionγγ→3π+3π- has been studied usig the JADE detector at PETRA. The topological cross sectionσ(γγ→3π+3π-) was measured in the CM energy range 1.5–5.5 GeV. The production ofρ0,s was observed and the average number ofρ0,s per event measured. The contributions of the subprocessesγγ→ρ02π+2π-,γγ→ρ0ρ0π+2π- andγγ→ 3π+3π- (phase space) were studied and 95% C.L. upper limits for the cross sectionσ(γγ→ρ0ρ0π+π- determined. Finally the Bose-Einstein correlation for pairs of like signed pions was observed. A fit to a standard parametrization gave results consistent with other studies of this effect in pion systems. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
