Measurement of $\pi^0\pi^0$ production in two-photon collisions

+2pi0+positron+electron%22&type=SU">electron positron --> 2pi0 positron electron, pi0 [electroproduction], helicity, ((1, interaction [photon photon], angular dependence [differential cross section], differential cross section [angular dependence], width [f0(1400)], colliding beams [electron positron], electron positron [inelastic scattering], ddc:530, electron positron [colliding beams], mass spectrum [(2pi0)], Crystal Ball, exchange [two-photon], (2pi0) [mass spectrum], width [f0(980)], experimental results -->
Popis: The reaction $e^+e^−→e^+e^−π^0π^0$ has been analyzed using 97pb$^{−1}$ of data taken with the Crystal Ball detector at the DESY $e^−e^+$ storage ring DORIS II at beam energies around 5.3 GeV. For the first time we have measured the cross section for $γγ→π^0π^0$ for π0π0 mvariant masses ranging from threshold to about 2 GeV. We measure an approximately flat cross section of about 10 nb for W=$mπ^0π^0
Jazyk: English
DOI: 10.1103/PhysRevD.41.3324
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=od______1108::1ef4094d6d76d2c50a148db5d2160a77
https://bib-pubdb1.desy.de/record/328690
Rights: OPEN
Přírůstkové číslo: edsair.od......1108..1ef4094d6d76d2c50a148db5d2160a77
Autor: Marsiske, H., Antreasyan, D., Cabenda, R., Cartacci, A., Cavalli-Sforza, M., Clare, R., Compagnucci, A., Conforto, G., Cooper, S., Cowan, R., Coyne, D., Engler, A., Bartels, H. W., Fairfield, K., Folger, G., Fridman, A., Gaiser, D., Gelphman, D., Glaser, G., Godfrey, G., Graaf, K., Heimlich, F. H., Heinsius, F. H., Besset, D., Hofstadter, R., Irion, J., Jakubowski, Z., Janssen, H., Karch, K., Keh, S., Kiel, T., Kilian, H., Kirkbride, I., Kloiber, T., Bieler, Ch., Kobel, M., Koch, W., Konig, A. C., Konigsmann, K., Kraemer, R. W., Kruger, S., Landi, G., Lee, R., Leffler, S., Lekebusch, R., Bienlein, J. K., Litke, A. M., Lockman, W. S., Lowe, S., Lurz, B., Marlow, D., Maschmann, W., McBride, P., Messing, F., Metzger, W. J., Meyer, H., Bizzeti, A., Monteleoni, B., Muryn, B., Nernst, R., Niczyporuk, B., Nowak, G., Peck, C., Pelfer, P. G., Pollock, B., Porter, F. C., Prindle, D., Bloom, E. D., Ratoff, P., Reidenbach, M., Renger, B., Rippich, C., Scheer, M., Schmitt, P., Schotanus, J., Schutte, J., Schwarz, A., Sievers, D., Brock, I., Skwarnicki, T., Stock, V., Strauch, K., Strohbusch, U., Tompkins, J., Trost, H. J., van Uitert, B., Van de Walle, R. T., Vogel, H., Voigt, A., Brockmuller, K., Volland, U., Wachs, K., Wacker, K., Walk, W., Wegener, H., Williams, D. A., Zschorsch, P., Crystal Ball Collaboration
Jazyk: angličtina
Rok vydání: 1990
Předmět:
Zdroj: Physical review / D 41(11), 3324-3335 (1990). doi:10.1103/PhysRevD.41.3324
DOI: 10.1103/PhysRevD.41.3324
Popis: The reaction $e^+e^−→e^+e^−π^0π^0$ has been analyzed using 97pb$^{−1}$ of data taken with the Crystal Ball detector at the DESY $e^−e^+$ storage ring DORIS II at beam energies around 5.3 GeV. For the first time we have measured the cross section for $γγ→π^0π^0$ for π0π0 mvariant masses ranging from threshold to about 2 GeV. We measure an approximately flat cross section of about 10 nb for W=$mπ^0π^0
Databáze: OpenAIRE
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