Direct photon production at high p sub T in. pi. sup minus Be and p Be collisions at 500 GeV/ c

We report new measurements of inclusive direct photon production at high transverse momenta ({ital p}{sub {ital T}}) for {pi}{sup {minus}} and {ital p} interactions on Be at 500 GeV/{ital c}. The yields as a function of {ital p}{sub {ital T}} and rapidity ({ital y}) are in good agreement with expect...

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Veröffentlicht in:Physical review letters 1992-04, Vol.68:17
Hauptverfasser: Alverson, G., Baker, W.F., Ballocchi, G., Benson, R., Berg, D., Blusk, S., Bromberg, C., Brown, D., Carey, D., Chand, T., Chandlee, C., Choudhary, B.C., Chung, W.H., de Barbaro, L., DeSoi, W., Dlugosz, W., Dunlea, J., Easo, S., Engels, E. Jr, Faissler, W., Fanourakis, G., Ferbel, T., Garelick, D., Ginther, G., Glass, G., Glaubman, M., Gutierrez, P., Hartman, K., Huston, J., Johnstone, C., Kapoor, V., Kourbanis, I., Lanaro, A., Lirakis, C., Lobkowicz, F., Lukens, P., Mani, S., Maul, A., Mansour, J., Miller, R., Nelson, C.A. Jr, Oh, B., Orris, D., Pothier, E., Prebys, E., Rajaram, B.M., Roser, R., Ruddick, K., Shepard, P., Shivpuri, R.K., Sinanidis, A., Skow, D., Slattery, P., Sorrell, L., Toothacker, W., Varelas, N., Weerasundara, D., Whitmore, J., Wu, G., Yasuda, T., Yosef, C., Zielinski, M.
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Sprache:eng
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Zusammenfassung:We report new measurements of inclusive direct photon production at high transverse momenta ({ital p}{sub {ital T}}) for {pi}{sup {minus}} and {ital p} interactions on Be at 500 GeV/{ital c}. The yields as a function of {ital p}{sub {ital T}} and rapidity ({ital y}) are in good agreement with expectations from next-to-leading-log QCD calculations employing recently extracted quark and gluon structure functions.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.68.2584