Measurement of the t distribution in diffractive photoproduction at HERA
European Physical Journal C 2:2 (1998) 237-246
Authors:
J Breitweg, M Derrick, D Krakauer, S Magill, D Mikunas, B Musgrave, J Repond, R Stanek, RL Talaga, R Yoshida, H Zhang, MCK Mattingly, F Anselmo, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, G Cara Romeo, G Castellini, M Chiarini, L Cifarelli, F Cindolo, A Contin, M Corradi, S de Pasquale, I Gialas, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, C Nemoz, F Palmonari, A Pesci, A Polini, F Ricci, G Sartorelli, Y Zamora Garcia, A Zichichi, C Amelung, A Bornheim, I Brock, K Coböken, J Crittenden, R Deffner, M Eckert, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, HP Jakob, UF Katz, R Kerger, E Paul, M Pfeiffer, C Rembser, J Stamm, R Wedemeyer, H Wieber, DS Bailey, S Campbell-Robson, WN Cottingham, B Foster, R Hall-Wilton, ME Hayes, GP Heath, HF Heath, JD McFall, D Piccioni, DG Roff, RJ Tapper, M Arneodo, R Ayad, M Capua, A Garfagnini, L Iannotti, M Schioppa, G Susinno, JY Kim, JH Lee, IT Lim, MY Pac, A Caldwell, N Cartiglia, Z Jing, W Liu, B Mellado, JA Parsons, S Ritz, S Sampson, F Sciulli, PB Straub, Q Zhu, P BorzemskiAbstract:
Photon diffractive dissociation, γp → Xp, has been studied at HERA with the ZEUS detector using ep interactions where the virtuality Q2 of the exchanged photon is smaller than 0.02 GeV2. The squared four-momentum t exchanged at the proton vertex was determined in the range 0.073 < \t\ < 0.40 GeV2 by measuring the scattered proton in the ZEUS Leading Proton Spectrometer. In the photonproton centre-of-mass energy interval 176 < W < 225 GeV and for masses of the dissociated photon system 4 < Mx < 32 GeV, the t distribution has an exponential shape, dN/d\t\ ∝ exp (-b\t\), with a slope parameter b = 6.8 ± 0.9 (stat.) +1.2-1.1 (syst.) GeV-2.Charged particles and neutral kaons in photoproduced jets at HERA
EUROPEAN PHYSICAL JOURNAL C 2:1 (1998) 77-93
Authors:
J Breitweg, M Derrick, D Krakauer, S Magill, D Mikunas, BR Yoshida, H Zhang, MCK Mattingly, F Anselmo, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, GC Romeo, G Castellini, L Cifarelli, F Cindolo, A Contin, M Corradi, S De Pasquale, I Gialas, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, F Palmonari, A Pesci, A Polini, F Ricci, G Sartorelli, YZ Garcia, A Zichichi, C Amelung, A Bornheim, I Brock, K Coboken, J Crittenden, R Deffner, M Eckert, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, HP Jakob, UF Katz, R Kerger, E Paul, M Pfeiffer, C Rembser, J Stamm, R Wedemeyer, H Wieber, DS Bailey, S Campbell-Robson, WN Cottingham, B Foster, R Hall-Wilton, ME Hayes, GP Heath, HF Heath, JD McFall, D Piccioni, DG Roff, RJ Tapper, M Arneodo, R Ayad, M Capua, A Garfagnini, L Iannotti, M Schioppa, G Susinno, JY Kim, JH Lee, IT Lim, MY Pac, A Caldwell, N Cartiglia, Z Jing, W Liu, B Mellado, JA Parsons, S Ritz, S Sampson, F Sciulli, PB Straub, Q Zhu, P Borzemski, J Chwastowski, A Eskreys, J Figiel, K Klimek, MB Przybycien, L Zawiejski, L Adamczyk, B Bednarek, M Bukowy, A Czermak, K Jelen, D Kisielewska, T Kowalski, M Przybycien, E Rulikowska-Zarebska, L Suszycki, J Zajac, Z Dulinski, A Kotanski, G Abbiendi, LAT Bauerdick, U Behrens, H Beier, JK Bienlein, G Cases, O Deppe, K Desler, G Drews, U Fricke, DJ Gilkinson, C Glasman, P Gottlicher, T Haas, W Hain, D Hasell, KF Johnson, M Kasemann, W Koch, U Kotz, H Kowalski, J Labs, L Lindemann, B Lohr, M Lowe, O Manczak, J Milewski, T Monteiro, JST Ng, D Notz, K Ohrenberg, IH Park, A Pellegrino, F Pelucchi, K Piotrzkowski, M Roco, M Rohde, J Roldan, JJ Ryan, AA Savin, U Schneekloth, O Schwarzer, F Selonke, B Surrow, E Tassi, T Voss, D Westphal, G Wolf, U Wollmer, C Youngman, AF Zarnecki, W Zeuner, BD Burow, HJ Grabosch, A Meyer, S Schlenstedt, G Barbagli, E Gallo, P Pelfer, G Maccarrone, L Votano, A Bamberger, S Eisenhardt, P Markun, T Trefzger, S Wolfle, JT Bromley, NK Brook, PJ Bussey, AT Doyle, N Macdonald, DH Saxon, LE Sinclair, E Strickland, R Waugh, AS Wilson, I Bohnet, N Gendner, U Holm, A Meyler-Larsen, H Salehi, K Wick, LK Gladilin, D Horstmann, D Kcira, R Klanner, E Lohrmann, G Poelz, W Schott, F Zetsche, TC Bacon, I Butterworth, JE Cole, G Howell, BHY Hung, L Lamberti, KR Long, DB Miller, N Pavel, A Prinias, JK Sedgbeer, D Sideris, R Walker, U Mallik, SM Wang, JT Wu, P Cloth, D Filges, JI Fleck, T Ishii, M Kuze, I Suzuki, K Tokushuku, S Yamada, K Yamauchi, Y Yamazaki, SJ Hong, SB Lee, SW Nam, SK Park, F Barreiro, JP Fernandez, G Garcia, R Graciani, JM Hernandez, L Hervas, L Labarga, M Martinez, J del Peso, J Puga, J Terron, JF de Troconiz, F Corriveau, DS Hanna, J Hartmann, LW Hung, WN Murray, A Ochs, M Riveline, DG Stairs, M St-Laurent, R Ullmann, T Tsurugai, V Bashkirov, BA Dolgoshein, A Stifutkin, GL Bashindzhagyan, PF Ermolov, YA Golubkov, LA Khein, NA Korotkova, IA Korzhavina, VA Kuzmin, OY Lukina, AS Proskuryakov, LM Shcheglova, AN Solomin, SA Zotkin, C Bokel, M Botje, N Brummer, F Chlebana, J Engelen, E Koffeman, P Kooijman, A van Sighem, H Tiecke, N Tuning, W Verkerke, J Vossebeld, M Vreeswijk, L Wiggers, E de Wolf, D Acosta, B Bylsma, LS Durkin, J Gilmore, CM Ginsburg, CL Kim, TY Ling, P Nylander, TA Romanowski, HE Blaikley, RJ Cashmore, AM Cooper-Sarkar, RCE Devenish, JK Edmonds, J Grosse-Knetter, N Harnew, C Nath, VA Noyes, A Quadt, O Ruske, JR Tickner, H Uijterwaal, R Walczak, DS Waters, A Bertolin, R Brugnera, R Carlin, F Dal Corso, U Dosselli, S Limentani, M Morandin, M Posocco, L Stanco, R Stroili, C Voci, J Bulmahn, BY Oh, JR Okrasinski, WS Toothacker, JJ Whitmore, Y Iga, G D'Agostini, G Marini, A Nigro, M Raso, JC Hart, NA McCubbin, TP Shah, D Epperson, C Heusch, JT Rahn, HFW Sadrozinski, A Seiden, R Wichmann, DC Williams, H Abramowicz, G Briskin, S Dagan, S Kananov, A Levy, T Abe, T Fusayasu, M Inuzuka, K Nagano, K Umemori, T Yamashita, R Hamatsu, T Hirose, K Homma, S Kitamura, T Matsushita, R Cirio, M Costa, MI Ferrero, S Maselli, V Monaco, C Peroni, MC Petrucci, M Ruspa, R Sacchi, A Solano, A Staiano, M Dardo, DC Bailey, CP Fagerstroem, R Galea, GF Hartner, KK Joo, GM Levman, JF Martin, RS Orr, S Polenz, A Sabetfakhri, D Simmons, RJ Teuscher, JM Butterworth, CD Catterall, TW Jones, JB Lane, RL Saunders, MR Sutton, M Wing, J Ciborowski, G Grzelak, M Kasprzak, K Muchorowski, RJ Nowak, JM Pawlak, R Pawlak, T Tymieniecka, AK Wroblewski, JA Zakrzewski, M Adamus, C Coldewey, Y Eisenberg, D Hochman, U Karshon, WF Badgett, D Chapin, R Cross, S Dasu, C Foudas, RJ Loveless, S Mattingly, DD Reeder, WH Smith, A Vaiciulis, M Wodarczyk, A Deshpande, S Dhawan, VW Hughes, S Bhadra, WR Frisken, M Khakzad, WB SchmidkeDiffractive dijet cross sections in photoproduction at HERA
EUROPEAN PHYSICAL JOURNAL C 5:1 (1998) 41-56
Authors:
J Breitweg, M Derrick, D Krakauer, S Magill, T Mikunas, B Musgrave, J Repond, R Stanek, RL Talaga, R Yoshida, H Zhang, MCK Mattingly, F Anselmo, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, GC Romeo, G Castellini, L Cifarelli, F Cindolo, A Contin, N Coppola, M Corradi, S De Pasquale, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, F Palmonari, A Pesci, A Polini, G Satorelli, YZ Garcia, A Zichichi, C Amelung, A Bornheim, I Brock, E Coboken, J Crittenden, R Deffner, M Eckert, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, HP Jakob, A Kappes, UF Katz, R Kerger, E Paul, M Pfeiffer, J Stamm, H Wieber, DS Bailey, S Campbell-Robson, WN Cottingham, B Foster, R Hall-Wilton, GP Heath, HF Heath, JD McFall, D Piccioni, DG Roff, RJ Tapper, R Ayad, M Capua, L Iannotti, M Schioppa, G Susinno, JY Kim, JH Lee, LT Lim, MY Pac, A Caldwell, N Cartiglia, Z Jing, W Liu, B Mellado, JA Parsons, J Ritz, S Sampson, F Sciulli, PB Straub, Q Zhu, P Borzemski, J Chwastowski, A Eskreys, J Figiel, K Klimek, MB Przybycien, L Zamiejski, L Adamczyk, B Bedaarek, M Bukowy, AM Czermak, K Jelen, D Kisielewska, T Kowalski, M Przybycien, E Rulikowska-Zarebska, L Suszycki, J Zajac, Z Dulinski, A Kotanskii, G Abbiendi, LAT Bauerdick, U Behrens, H Beier, JK Bienlein, K Desler, G Drews, U Fricke, I Gialas, F Goebel, P Gottlicher, R Graciani, T Haas, W Hain, D Hasell, E Hebbel, KF Johnson, M Kasemann, W Koch, U Kotz, H Kowalski, L Lindemann, B Lohr, J Milewski, M Milite, T Monteiro, JST Ng, D Notz, IH Park, A Pellegrino, F Pelucchi, K Piotrzkowski, M Rohde, J Roldan, JJ Ryan, AA Savin, U Schneekloth, O Schwarzer, F Selonke, S Stonjek, B Surrow, E Tassi, D Westphal, G Wolf, U Wollmer, C Youngman, W Zeuner, BD Burow, C Coldewey, HJ Grabosch, A Meyer, S Schlenstedt, G Barbagli, E Gallo, P Pelfer, G Maccarrone, L Votano, A Bamberger, S Eisenhardt, P Markun, H Raach, T Trefzger, S Wolfle, JT Bromley, NH Brook, PJ Bussey, AT Doyle, N Macdonald, DH Saxon, LE Sinclair, IO Skillicorn, E Strickland, R Waugh, I Bohnet, N Gendner, U Holm, A Meyer-Larsen, H Salehi, K Wick, A Garfagnini, LK Gladilin, D Horstmann, D Kcira, R Klanner, E Lohrmann, G Poelz, W Schott, F Zetsche, TC Bacon, I Butterworth, JE Cole, G Howell, L Lamberti, KR Long, DB Miller, N Pavel, A Prinias, JK Sedgbeer, D Sideris, R Walker, T Mallik, SM Wang, JT Wu, P Cloth, D Filges, JI Fleck, T Ishii, M Kuze, I Suzuki, K Tokushuku, S Yamada, K Yaqmauchi, Y Yamazaki, SJ Hong, SB Lee, SW Nam, SK Park, F Barreiro, JP Fernandez, G Garcia, C Glasman, JM Hernandez, L Hervas, L Labarga, M Martinez, J del Peso, J Puga, J Terron, JF de Troconiz, F Corriveau, DS Hanna, J Hartmaan, LW Hung, WN Murray, A Ochs, M Riveline, DG Stairs, M St-Laurent, R Ullmann, T Tsurugai, V Bashkirov, BA Dolgoshein, A Stifutkin, GL Bashindzhagyan, PF Ermolov, YA Golubkov, LA Khein, NA Korotkova, IA Korzhavina, VA Kuzmin, OY Lukina, AS Proskuryakov, LM Shcheglova, AN Solomin, SA Zotkin, C Bokel, M Botje, N Brummer, J Engelen, E Koffeman, P Kooijman, A van Sighem, E Tiecke, N Tuning, W Verkerke, J Vossebeld, L Wiggers, E de Wolf, D Acosta, B Bylsma, LS Durkin, J Gilmore, CM Ginsburg, CL Kim, TY Ling, P Nylander, TA Romanowski, HE Blaikley, RJ Cashmore, AM Cooper-Sarkar, RCE Devenish, JK Edmonds, J Grosse-Knetter, N Harnew, C Nath, VA Noyes, A Quadt, O Ruske, JR Tickner, R Walczak, DS Waters, A Bertolin, R Brugnera, R Carlin, F Dal Corso, U Dosselli, S Limentani, M Morandin, M Posocco, L Stanco, R Stroili, C Voci, J Bulmahn, BY Oh, JR Okrasinski, WS Toothacker, JJ Whitmore, G D'Agostini, G Marini, A Nigro, M Raso, JC Hart, NA McCubbin, TP Shah, D Epperson, C Heusch, JT Rahn, HFW Sadrozinski, A Seiden, R Wichmann, DC Williams, H Abramowicz, G Briskin, S Dagan, S Kananov, A Levy, T Abe, T Fusayasu, M Inuzuka, K Nagano, K Umemori, T Yamashita, R Hamatsu, T Hirose, K Homma, S Kitamura, T Matsushita, T Arneodo, R Cirio, M Costa, MI Ferrero, S Maselli, V Monaco, C Peroni, TC Petrucci, M Ruspa, R Sacchi, A Solano, A Staiano, M Dardo, DC Bailey, CP Fagerstroem, R Galea, GF Hartner, KK Joe, GM Levman, JF Martin, RS Orr, S Polenz, A Sabetfakhri, D Simmons, RJ Teuscher, JM Butterworth, CD Catterall, ME Hayes, TW Jones, JB Lane, RL Saunders, MR Sutton, M Wing, J Ciborowski, G Grzelak, M Kasprzak, RJ Nowak, JM Pawlak, R Paylak, T Tymieniecka, AK Wroblewski, JA Zakrzewski, AF Zarnecki, M Adamus, O Deppe, Y Eisenberg, D Hochman, U Karshon, WF Badgett, D Chapin, R Cross, S Dasu, C Foudas, RJ Loveless, S Mattingly, DD Reeder, WH Smith, A Vaiciulis, M Wodarczyk, A Deshpande, S Dhawan, VW Hughes, S Bhadra, WR Frisken, M Khakzad, WB SchmidkeEvent shape analysis of deep inelastic scattering events with a large rapidity gap at HERA
PHYSICS LETTERS B 421:1-4 (1998) 368-384
Authors:
J Breitweg, M Derrick, D Krakauer, S Magill, D Mikunas, B Musgrave, J Repond, R Stanek, RL Talaga, R Yoshida, H Zhang, MCK Mattingly, F Anselmo, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, GC Romeo, G Castellini, L Cifarelli, F Cindolo, A Contin, M Corradi, S De Pasquale, I Gialas, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, F Palmonari, A Pesci, A Polini, F Ricci, G Sartorelli, YZ Garcia, A Zichichi, C Amelung, A Bornheim, I Brock, K Coboken, J Crittenden, R Deffner, M Eckert, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, HP Jakob, UF Katz, R Kerger, E Paul, M Pfeiffer, C Rembser, J Stamm, R Wedemeyer, H Wieber, DS Bailey, S Campbell-Robson, WN Cottingham, B Foster, R Hall-Wilton, ME Hayes, GP Heath, HF Heath, JD McFall, D Piccioni, DG Roff, RJ Tapper, M Arneodo, R Ayad, M Capua, A Garfagnini, L Iannotti, M Schioppa, G Susinno, JY Kim, JH Lee, IT Lim, MY Pac, A Caldwell, N Cartiglia, Z Jing, W Liu, B Mellado, JA Parsons, S Ritz, S Sampson, F Sciulli, PB Straub, Q Zhu, P Borzemski, J Chwastowski, A Eskreys, J Figiel, K Klimek, MB Przybycien, L Zawiejski, L Adamczyk, B Bednarek, M Bukowy, K Jelen, D Kisielewska, T Kowalski, M Przybycien, E Rulikowska-Zarebska, L Suszycki, J Zajac, Z Dulinski, A Kotanski, G Abbiendi, LAT Bauerdick, U Behrens, H Beier, JK Bienlein, G Cases, O Deppe, K Desler, G Drews, U Fricke, DJ Gilkinson, C Glasman, P Gottlicher, T Haas, W Hain, D Hasell, KF Johnson, M Kasemann, W Koch, U Kotz, H Kowalski, J Labs, L Lindemann, B Lohr, M Lowe, O Manczak, J Milewski, T Monteiro, JST Ng, D Notz, K Ohrenberg, IH Park, A Pellegrino, F Pelucchi, K Piotrzkowski, M Roco, M Rohde, J Roldan, JJ Ryan, AA Savin, U Schneekloth, F Selonke, B Surrow, E Tassi, T Voss, D Westphal, G Wolf, U Wollmer, C Youngman, AF Zarnecki, W Zeuner, BD Burow, HJ Grabosch, A Meyer, S Schlenstedt, G Barbagli, E Gallo, P Pelfer, G Maccarrone, L Votano, A Bamberger, S Eisenhardt, P Markun, T Trefzger, S Wolfle, JT Bromley, NH Brook, PJ Bussey, AT Doyle, N Macdonald, DH Saxon, LE Sinclair, E Strickland, R Waugh, I Bohnet, N Gendner, U Holm, A Meyer-Larsen, H Salehi, K Wick, LK Gladilin, D Horstmann, D Kcira, R Klanner, E Lohrmann, G Poelz, W Schott, F Zetsche, TC Bacon, I Butterworth, JE Cole, G Howell, BHY Hung, L Lamberti, KR Long, DB Miller, N Pavel, A Prinias, JK Sedgbeer, D Sideris, R Walker, U Mallik, SM Wang, JT Wu, P Cloth, D Filges, JI Fleck, T Ishii, M Kuze, I Suzuki, K Tokushuku, S Yamada, K Yamauchi, Y Yamazaki, SJ Hong, SB Lee, SW Nam, SK Park, F Barreiro, JP Fernandez, G Garcia, R Graciani, JM Hernandez, L Hervas, L Labarga, M Martinez, J del Peso, J Puga, J Terron, JF de Troconiz, F Corriveau, DS Hanna, J Hartmann, LW Hung, WN Murray, A Ochs, M Riveline, DG Stairs, M St-Laurent, R Ullmann, T Tsurugai, V Bashkirov, BA Dolgoshein, A Stifutkin, GL Bashindzhagyan, PF Ermolov, YA Golubkov, LA Khein, NA Korotkova, IA Korzhavina, VA Kuzmin, OY Lukina, AS Proskuryakov, LM Shcheglova, AN Solomin, SA Zotkin, C Bokel, M Botje, N Brummer, F Chlebana, J Engelen, E Koffeman, P Kooijman, A van Sighem, H Tiecke, N Tuning, W Verkerke, J Vossebeld, M Vreeswijk, L Wiggers, E de Wolf, D Acosta, B Bylsma, LS Durkin, J Gilmore, CM Ginsburg, CL Kim, TY Ling, P Nylander, TA Romanowski, HE Blaikley, RJ Cashmore, AM Cooper-Sarkar, RCE Devenish, JK Edmonds, J Grosse-Knetter, N Harnew, C Nath, VA Noyes, A Quadt, O Ruske, JR Tickner, H Uijterwaal, R Walczak, DS Waters, A Bertolin, R Brugnera, R Carlin, F Dal Corso, U Dosselli, S Limentani, M Morandin, M Posocco, L Stanco, R Stroili, C Voci, J Bulmahn, BY Oh, JR Okrasinski, WS Toothacker, JJ Whitmore, Y Iga, G D'Agostini, G Marini, A Nigro, M Raso, JC Hart, NA McCubbin, TP Shah, D Epperson, C Heusch, JT Rahn, HFW Sadrozinski, A Seiden, R Wichmann, DC Williams, O Schwarzer, AH Walenta, H Abramowicz, G Briskin, S Dagan, S Kananov, A Levy, T Abe, T Fusayasu, M Inuzuka, K Nagano, K Umemori, T Yamashita, R Hamatsu, T Hirose, K Homma, S Kitamura, T Matsushita, R Cirio, M Costa, MI Ferrero, S Maselli, V Monaco, C Peroni, MC Petrucci, M Ruspa, R Sacchi, A Solano, A Staiano, M Dardo, DC Bailey, CP Fagerstroem, R Galea, GF Hartner, KK Joo, GM Levman, JF Martin, RS Orr, S Polenz, A Sabetfakhri, D Simmons, RJ Teuscher, JM Butterworth, CD Catterall, TW Jones, SB Lane, RL Saunders, MR Sutton, M Wing, J Ciborowski, G Grzelak, M Kasprzak, K Muchorowski, RJ Nowak, JM Pawlak, R Pawlak, T Tymieniecka, AK Wroblewski, JA Zakrzewski, M Adamus, C Coldewey, Y Eisenberg, D Hochman, U Karshon, WF Badgett, D Chapin, R Cross, S Dasu, C Foudas, RJ Loveless, S Mattingly, DD Reeder, WH Smith, A Vaiciulis, M Wodarczyk, A Deshpande, S Dhawan, VW Hughes, S Bhadra, WR Frisken, M Khakzad, WB SchmidkeHigh-ET inclusive jet cross sections in photoproduction at HERA
EUROPEAN PHYSICAL JOURNAL C 4:4 (1998) 591-606