Measurement of the high energy two-body deuteron photodisintegration differential cross section

• Published in: Physical review letters 2001-09, Vol.87 (10), p.102302-102302, Article 102302
• Main Authors: Schulte, E C, Ahmidouch, A, Armstrong, C S, Arrington, J, Asaturyan, R, Avery, S, Baker, O K, Beck, D H, Blok, H P, Bochna, C W, Boeglin, W, Bosted, P Y, Bouwhuis, M, Breuer, H, Brown, D S, Bruell, A, Cadman, R V, Carlini, R, Chant, N S, Cochran, A, Cole, L, Danagoulian, S, Day, D B, Dunne, J A, Dutta, D, Ent, R, Fenker, H C, Fox, B, Gan, L, Gao, H, Garrow, K, Gaskell, D, Gasparian, A, Geesaman, D F, Gilman, R, Glashausser, C, Gueye, P, Harvey, M, Holt, R J, Jackson, H E, Jiang, X, Keppel, C E, Kinney, E R, Liang, Y, Lorenzon, W, Lung, A F, Mack, D J, Markowitz, P E, Martin, J, McIlhany, K, McKee, D, Meekins, D G, Miller, M A, Milner, R G, Mitchell, J H, Mkrtchyan, H, Mueller, B A, Nathan, A M, Niculescu, G, Niculescu, I, O'Neill, T G, Papavassiliou, V, Pate, S F, Piercey, R B, Potterveld, D H, Ransome, R D, Reinhold, J, Rollinde, E, Roos, P, Saha, A, Sarty, A J, Sawafta, R, Segbefia, E, Shin, T, Stepanyan, S, Strauch, S, Sutter, M F, Tadevosyan, V, Tang, L, Tieulent, R, Uzzle, A, Vulcan, W F, Wood, S A, Xiong, F, Yuan, L, Zeier, M, Zihlmann, B, Ziskin, V
• Format: Article
• Language: English
• Subjects: CEBAF ACCELERATOR; DEUTERONS; DIFFERENTIAL CROSS SECTIONS; PARTICLE ACCELERATORS; PHOTONS; PHOTONUCLEAR REACTIONS
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PhysRevLett.87.102302

The first measurements of the d(gamma,p)n differential cross section at forward angles and photon energies above 4 GeV were performed at the Thomas Jefferson National Accelerator Facility (JLab). The results indicate evidence of an angular dependent scaling threshold. Results at straight theta(cm) = 37 degrees are consistent with the constituent counting rules for E(gamma) greater, similar 4 GeV, while those at 70 degrees are consistent with the constituent counting rules for E(gamma) greater, similar 1.5 GeV.