We report a measurement of the rate of prompt diphoton production in p (p) over bar collisions at root s = 1: 96 TeV using a data sample of 207 pb(-1) collected with the upgraded Collider Detector at Fermilab. The background from nonprompt sources is determined using a statistical method based on differences in the electromagnetic showers. The cross section is measured as a function of the diphoton mass, the transverse momentum of the diphoton system, and the azimuthal angle between the two photons and is found to be consistent with perturbative QCD predictions.
Measurement of the cross section for prompt diphoton production in p(p)over-bar collisions at root s=1.96 TeV / Acosta, D; Adelman, J; Affolder, T; Akimoto, T; Albrow, Mg; Ambrose, D; Amerio, S; Amidei, D; Anastassov, A; Anikeev, K; Annovi, A; Antos, J; Aoki, M; Apollinari, G; Arisawa, T; Arguin, Jf; Artikov, A; Ashmanskas, W; Attal, A; Azfar, F; AZZI BACCHETTA, P; Bacchetta, N; Bachacou, H; Badgett, W; BARBARO GALTIERI, A; Barker, Gj; Barnes, Ve; Barnett, Ba; Baroiant, S; Barone, M; Bauer, G; Bedeschi, F; Behari, S; Belforte, S; Bellettini, G; Bellinger, J; BEN HAIM, E; Benjamin, D; Beretvas, A; Bhatti, A; Binkley, M; Bisello, D; Bishai, M; Blair, Re; Blocker, C; Bloom, K; Blumenfeld, B; Bocci, A; Bodek, A; Bolla, G; Bolshov, A; Booth, Psl; Bortoletto, D; Boudreau, J; Bourov, S; Brau, B; Bromberg, C; Brubaker, E; Budagov, J; Budd, Hs; Burkett, K; Busetto, G; Bussey, P; Byrum, Kl; Cabrera, S; Campanelli, M; Campbell, M; Canepa, A; Casarsa, M; Carlsmith, D; Carron, S; Carosi, R; CAVALLI SFORZA, M; 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[10.1103/physrevlett.95.022003]
Measurement of the cross section for prompt diphoton production in p(p)over-bar collisions at root s=1.96 TeV
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TETHER S; THOM J; THOMPSON AS; THOMSON E; TIPTON P; TIWARI V; TKACZYK S; TOBACK D; TOLLEFSON K; TOMURA T; TONELLI D; TONNESMANN M; TORRE S; TORRETTA D; TOURNEUR S; TRISCHUK W; TSENG J; TSUCHIYA R; TSUNO S; TSYBYCHEV D; TURINI N; TURNER M; UKEGAWA F; UNVERHAU T; UOZUMI S; USYNIN D; VACAVANT L; VAICIULIS A; VARGANOV A; VATAGA E; VEJCIK S; VELEV G; VESZPREMI V; VERAMENDI G; VICKEY T; VIDAL R; VILA I; VILAR R; VOLLRATH I; VOLOBOUEV I; VON DER MEY M; WAGNER P; WAGNER RG; WAGNER RL; WAGNER W; WALLNY R; WALTER T; YAMASHITA T; YAMAMOTO K; WAN Z; WANG MJ; WANG SM; WARBURTON A; WARD B; WASCHKE S; WATERS D; WATTS T; WEBER M; WESTER WC; WHITEHOUSE B; WICKLUND AB; WICKLUND E; WILLIAMS HH; WILSON P; WINER BL; WITTICH P; WOLBERS S; WOLTER M; WORCESTER M; WORM S; WRIGHT T; WU X; WURTHWEIN F; WYATT A; YAGIL A; YANG C; YANG UK; YAO W; YEH GP; YI K; YOH J; YOON P; YORITA K; YOSHIDA T; YU I; YU S; YU Z; YUN JC; ZANELLO L; ZANETTI A; ZAW I; ZETTI F; ZHOU J; ZSENEI A; ZUCCHELLI S.
2005
Abstract
We report a measurement of the rate of prompt diphoton production in p (p) over bar collisions at root s = 1: 96 TeV using a data sample of 207 pb(-1) collected with the upgraded Collider Detector at Fermilab. The background from nonprompt sources is determined using a statistical method based on differences in the electromagnetic showers. The cross section is measured as a function of the diphoton mass, the transverse momentum of the diphoton system, and the azimuthal angle between the two photons and is found to be consistent with perturbative QCD predictions.
Citazione
Measurement of the cross section for prompt diphoton production in p(p)over-bar collisions at root s=1.96 TeV / Acosta, D; Adelman, J; Affolder, T; Akimoto, T; Albrow, Mg; Ambrose, D; Amerio, S; Amidei, D; Anastassov, A; Anikeev, K; Annovi, A; Antos, J; Aoki, M; Apollinari, G; Arisawa, T; Arguin, Jf; Artikov, A; Ashmanskas, W; Attal, A; Azfar, F; AZZI BACCHETTA, P; Bacchetta, N; Bachacou, H; Badgett, W; BARBARO GALTIERI, A; Barker, Gj; Barnes, Ve; Barnett, Ba; Baroiant, S; Barone, M; Bauer, G; Bedeschi, F; Behari, S; Belforte, S; Bellettini, G; Bellinger, J; BEN HAIM, E; Benjamin, D; Beretvas, A; Bhatti, A; Binkley, M; Bisello, D; Bishai, M; Blair, Re; Blocker, C; Bloom, K; Blumenfeld, B; Bocci, A; Bodek, A; Bolla, G; Bolshov, A; Booth, Psl; Bortoletto, D; Boudreau, J; Bourov, S; Brau, B; Bromberg, C; Brubaker, E; Budagov, J; Budd, Hs; Burkett, K; Busetto, G; Bussey, P; Byrum, Kl; Cabrera, S; Campanelli, M; Campbell, M; Canepa, A; Casarsa, M; Carlsmith, D; Carron, S; Carosi, R; CAVALLI SFORZA, M; 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