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    Adler, S.S.; Afanasiev, S.; Aidala, C.; Ajitanand, N.N.; Akiba, Y.; Alexander, J.; Amirikas, R.; Aphecetche, Laurent; Aronson, S.H.; Averbeck, R.; Awes, T.C.; Azmoun, R.; Babintsev, V.; Baldisseri, A.; Barish, K.N.; Barnes, P.D.; Bassalleck, B.; Bathe, S.; Batsouli, S.; Baublis, V.; Bazilevsky, A.; Belikov, S.; Berdnikov, Y.; Bhagavatula, S.; Boissevain, J.G.; Borel, H.; Borenstein, S.; Brooks, M.L.; Brown, D.S.; Bruner, N.; Bucher, D.; Buesching, H.; Bumazhnov, V.; Bunce, G.; Burward-Hoy, J.M.; Butsyk, S.; Camard, X.; Chai, J.-S.; Chand, P.; Chang, W.C.; Chernichenko, S.; Chi, C.Y.; Chiba, J.; Chiu, M.; Choi, I.J.; Choi, J.; Choudhury, R.K.; Chujo, T.; Cianciolo, V.; Cobigo, Y.; Cole, B.A.; Constantin, P.; d'Enterria, D.G.; David, G.; Delagrange, H.; Denisov, A.; Deshpande, A.; Desmond, E.J.; Devismes, A.; Dietzsch, O.; Drapier, O.; Drees, A.; Drees, K.A.; Du Rietz, R.; Durum, A.; Dutta, D.; Efremenko, Y.V.; El Chenawi, K.; Enokizono, A.; Enyo, H.; Esumi, S.; Ewell, L.; Fields, D.E.; Fleuret, F.; Fokin, S.L.; Fox, B.D.; Fraenkel, Z.; Frantz, J.E.; Franz, A.; Frawley, A.D.; Fung, S.-Y.; Garpman, S.; Ghosh, T.K.; Glenn, A.; Gogiberidze, G.; Gonin, M.; Gosset, J.; Goto, Y.; Granier de Cassagnac, R.; Grau, N.; Greene, S.V.; Grosse Perdekamp, M.; Guryn, W.; Gustafsson, H.-A.; Hachiya, T.; Haggerty, J.S.; Hamagaki, H.; Hansen, A.G.; Hartouni, E.P.; Harvey, M.

    Physical review. D, Particles, fields, gravitation, and cosmology, 2005, Letnik: 71
    Journal Article

    A measurement of direct photons in $p+p$ collisions at $\sqrt{s}$=200 GeV is presented. A photon excess above background from $\pi^0\rightarrow\gamma+\gamma$, $\eta\rightarrow\gamma+\gamma$, and other decays is observed in the transverse momentum range $5.5 < p_T < 7 GeV/c$. The result is compared to a next-to-leading-order perturbative QCD calculation. Within errors, good agreement is found between the QCD calculation and the measured result