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Study of photon dissociation in diffractive photoproduction at HERA

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 75:3 (1997) 421-435

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 DePasquale, I Gialas, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, F Palmonari, A Pesci, A Polini, G Sartorelli, YZ Garcia, A Zichichi, C Amelung, A Bornheim, I Brock, K Coboken, J Crittenden, R Deffner, M Eckert, L Feld, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, HP Jakob, UF Katz, E Paul, M Pfeiffer, C Rembser, J Stamm, R Wedemeyer, DS Bailey, S CampbellRobson, WN Cottingham, B Foster, R HallWilton, ME Hayes, GP Heath, HF Heath, 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, JA Parsons, S Ritz, S Sampson, F Sciulli, PB Straub, Q Zhu, P Borzemski, J Chwastowski, A Eskreys, Z Jakubowski, MB Przybycien, M Zachara, L Zawiejski, L Adamczyk, B Bednarek, K Jelen, D Kisielewska, T Kowalski, M Przybycien, E RulikowskaZarebska, 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, J GrosseKnetter, T Haas, W Hain, D Hasell, H Hessling, KF Johnson, M Kasemann, W Koch, U Kotz, H Kowalski, J Labs, L Lindemann, B Lohr, M Lowe, J Mainusch, 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, W Schulz, 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, DH Saxon, LE Sinclair, E Strickland, ML Utley, R Waugh, AS Wilson, I Bohnet, N Gendner, U Holm, A MeyerLarsen, H Salehi, K Wick, LK Gladilin, R Klanner, E Lohrmann, G Poelz, W Schott, F Zetsche, TC Bacon, I Butterworth, JE Cole, VL Harris, G Howell, BHY Hung, L Lamberti, KR Long, DB Miller, N Pavel, A Prinias, JK Sedgbeer, D Sideris, AF Whitfield, U Mallik, SM Wang, JT Wu, P Cloth, D Filges, JI Fleck, T Ishii, M Kuze, M Nakao, K Tokushuku, S Yamada, Y Yamazaki, SH An, SB Lee, SW Nam, HS Park, SK Park, F Barreiro, JP Fernandez, R Graciani, JM Hernandez, L Hervas, L Labarga, M Martinez, J delPeso, J Puga, J Terron, JF deTroconiz, F Corriveau, DS Hanna, J Hartmann, LW Hung, JN Lim, WN Murray, A Ochs, M Riveline, DG Stairs, M StLaurent, R Ullmann, T Tsurugai, V Bashkirov, BA Dolgoshein, A Stifutkin, GL Bashindzhagyan, PF Ermolov, YA Golubkov, LA Khein, NA Korotkova, LA Korzhavina, VA Kuzmin, OY Lukina, AS Proskuryakov, LM Shcheglova, AV Shumilin, AN Solomin, SA Zotkin, C Bokel, M Botje, N Brummer, F Chlebana, J Engelen, P Kooijman, A Kruse, A vanSighem, H Tiecke, W Verkerke, J Vossebeld, M Vreeswijk, L Wiggers, E deWolf, D Acosta, B Bylsma, LS Durkin, J Gilmore, CM Ginsburg, CL Kim, TY Ling, P Nylander, TA Romanowski, HE Blaikley, RJ Cashmore, AM CooperSarkar, RCE Devenish, JK Edmonds, N Harnew, M Lancaster, JD McFall, C Nath, VA Noyes, A Quadt, JR Tickner, H Uijterwaal, R Walczak, DS Waters, T Yip, A Bertolin, R Brugnera, R Carlin, F DalCorso, U Dosselli, S Limentani, M Morandin, M Posocco, L Stanco, R Stroili, C Voci, J Bulmahn, RG Feild, BY Oh, JR Okrasinski, JJ Whitmore, Y Iga, G DAgostini, G Marini, A Nigro, M Raso, JC Hart, NA McCubbin, TP Shah, E Barberis, T Dubbs, C Heusch, M VanHook, W Lockman, JT Rahn, HFW Sadrozinski, A Seiden, DC Williams, O Schwarzer, AH Walenta, H Abramowicz, G Briskin, S Dagan, T Doeker, S Kananov, A Levy, T Abe, M Inuzuka, K Nagano, I Suzuki, K Umemori, R Hamatsu, T Hirose, K Homma, S Kitamura, T Matsushita, K Yamauchi, R Cirio, M Costa, MI Ferrero, S Maselli, V Monaco, C Peroni, MC Petrucci, R Sacchi, A Solano, A Staiano, M Dardo, DC Bailey, M Brkic, CP Fagerstroem, GF Hartner, KK Joo, GM Levman, JF Martin, RS Orr, S Polenz, CR Sampson, D Simmons, RJ Teuscher, JM Butterworth, CD Catterall, TW Jones, PB Kaziewicz, JB Lane, RL Saunders, J Shulman, MR Sutton, B Lu, LW Mo, 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, D Revel, WF Badgett, D Chapin, R Cross, S Dasu, C Foudas, RJ Loveless, S Mattingly, DD Reeder, WH Smith, A Vaiciulis, M Wodarczyk, S Bhadra, WR Frisken, M Khakzad, WB Schmidke
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The ZEUS Leading Proton Spectrometer and its use in the measurement of elastic rho(0) photoproduction at HERA

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 73:2 (1997) 253-268

Authors:

M Derrick, D Krakauer, S Magill, D Mikunas, B Musgrave, JR Okrasinski, J Repond, R Stanek, RL Talaga, H Zhang, MCK Mattingly, F Anselmo, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, P Bruni, GC Romeo, G Castellini, M Chiarini, L Cifarelli, F Cindolo, A Contin, M Corradi, I Gialas, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, C Nemoz, F Palmonari, A Pesci, A Polini, G Sartorelli, YZ Garcia, A Zichichi, C Amelung, A Bornheim, J Crittenden, R Deffner, M Eckert, L Feld, A Frey, M Geerts, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, HP Jakob, UF Katz, S Mengel, E Paul, M Pfeiffer, C Rembser, D Schramm, J Stamm, R Wedemeyer, S CampbellRobson, A Cassidy, WN Cottingham, N Dyce, B Foster, S George, ME Hayes, GP Heath, HF Heath, D Piccioni, DG Roff, RJ Tapper, R Yoshida, M Arneodo, R Ayad, M Capua, A Garfagnini, L Iannotti, M Schioppa, G Susinno, A Caldwell, N Cartiglia, Z Jing, W Liu, JA Parsons, S Ritz, F Sciulli, PB Straub, L Wai, S Yang, Q Zhu, P Borzemski, J Chwastowski, A Eskreys, Z Jakubowski, MB Przybycien, M Zachara, L Zawiejski, L Adamczyk, B Bednarek, K Jelen, D Kisielewska, T Kowalski, M Przybycien, E RulikowskaZarebska, 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, M Flasinski, DJ Gilkinson, C Glasman, P Gottlicher, J GrosseKnetter, T Haas, W Hain, D Hasell, H Hessling, Y Iga, KF Johnson, P Joos, M Kasemann, R Klanner, W Koch, U Kotz, H Kowalski, J Labs, A Ladage, B Lohr, M Lowe, D Luke, J Mainusch, O Manczak, J Milewski, T Monteiro, JST Ng, D Notz, K Ohrenberg, K Piotrzkowski, M Roco, M Rohde, J Roldan, U Schneekloth, W Schulz, F Selonke, B Surrow, E Tassi, T Voss, D Westphal, G Wolf, U Wollmer, C Youngman, W Zeuner, HJ Grabosch, SM Mari, A Meyer, S Schlenstedt, G Barbagli, E Gallo, P Pelfer, G Anzivino, G Maccarrone, S DePasquale, L Votano, A Bamberger, S Eisenhardt, T Trefzger, S Wolfle, JT Bromley, NH Brook, PJ Bussey, AT Doyle, DH Saxon, LE Sinclair, E Strickland, ML Utley, R Waugh, AS Wilson, A Dannemann, U Holm, D Horstmann, R Sinkus, K Wick, BD Burow, L Hagge, E Lohrmann, G Poelz, W Schott, F Zetsche, TC Bacon, N Brummer, I Butterworth, VL Harris, G Howell, BHY Hung, L Lamberti, KR Long, DB Miller, N Pavel, A Prinias, JK Sedgbeer, D Sideris, AF Whitfield, U Mallik, MZ Wang, SM Wang, JT Wu, P Cloth, D Filges, SH An, GH Cho, BJ Ko, SB Lee, SW Nam, HS Park, SK Park, HJ Kim, RR McNeil, W Metcalf, VK Nadendla, F Barreiro, JP Fernandez, R Graciani, JM Hernandez, L Hervas, L Labarga, M Martinez, J delPeso, J Puga, J Terron, JF deTroconiz, F Corriveau, DS Hanna, J Hartmann, LW Hung, JN Lim, CG Matthews, WN Murray, A Ochs, PM Patel, M Riveline, DG Stairs, M StLaurent, R Ullmann, G Zacek, T Tsurugai, V Bashkirov, BA Dolgoshein, A Stifutkin, GL Bashindzhagyan, PF Ermolov, LK Gladilin, YA Golubkov, VD Kobrin, IA Korzhavina, VA Kuzmin, OY Lukina, AS Proskuryakov, AA Savin, LM Shcheglova, AN Solomin, NP Zotov, M Botje, F Chlebana, J Engelen, M deKamps, P Kooijman, A Kruse, A vanSighem, H Tiecke, W Verkerke, J Vossebeld, M Vreeswijk, L Wiggers, E deWolf, R vanWoudenberg, D Acosta, B Bylsma, LS Durkin, J Gilmore, CM Ginsburg, CL Kim, C Li, TY Ling, P Nylander, IH Park, TA Romanowski, RJ Cashmore, AM CooperSarkar, RCE Devenish, N Harnew, M Lancaster, L Lindemann, JD McFall, C Nath, VA Noyes, A Quadt, JR Tickner, H Uijterwaal, R Walczak, DS Waters, FF Wilson, T Yip, A Bertolin, R Brugnera, R Carlin, F DalCorso, M DeGiorgi, U Dosselli, S Limentani, M Morandin, M Posocco, L Stanco, R Stroili, C Voci, F Zuin, J Bulmahn, RG Feild, BY Oh, JJ Whitmore, G DAgostini, G Marini, A Nigro, JC Hart, NA McCubbin, TP Shah, E Barberis, T Dubbs, C Heusch, M VanHook, W Lockman, JT Rahn, HFW Sadrozinski, A Seiden, DC Williams, J Biltzinger, RJ Seifert, O Schwarzer, AH Walenta, H Abramowicz, G Briskin, S Dagan, T Doeker, A Levy, JI Fleck, M Inuzuka, T Ishii, M Kuze, S Mine, M Nakao, I Suzuki, K Tokushuku, K Umemori, S Yamada, Y Yamazaki, M Chiba, R Hamatsu, T Hirose, K Homma, S Kitamura, T Matsushita, K Yamauchi, R Cirio, M Costa, MI Ferrero, S Maselli, C Peroni, R Sacchi, A Solano, A Staiano, M Dardo, DC Bailey, F Benard, M Brkic, CP Fagerstroem, GF Hartner, KK Joo, GM Levman, JF Martin, RS Orr, S Polenz, CR Sampson, D Simmons, RJ Teuscher, JM Butterworth, CD Catterall, TW Jones, PB Kaziewicz, JB Lane, RL Saunders, J Shulman, MR Sutton, B Lu, LW Mo, W Bogusz, J Ciborowski, J Gajewski, G Grzelak, M Kasprzak, M Krzyzanowski, K Muchorowski, RJ Nowak, JM Pawlak, T Tymieniecka, AK Wroblewski, JA Zakrzewski, AF Zarnecki, M Adamus, C Coldewey, Y Eisenberg, D Hochman, U Karshon, D Revel, D ZerZion, WF Badgett, J Breitweg, D Chapin, R Cross, S Dasu, C Foudas, RJ Loveless, S Mattingly, DD Reeder, S Silverstein, WH Smith, A Vaiciulis, M Wodarczyk, S Bhadra, ML Cardy, WR Frisken, M Khakzad, WB Schmidke
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An upper limit for Br(Z° -→ ggg) from symmetric 3-jet Z° hadronic decays

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 389:2 (1996) 405-415

Authors:

P Abreu, W Adam, T Adye, I Ajinenko, GD Alekseev, R Alemany, PP Allport, S Almehed, U Amaldi, S Amato, A Andreazza, ML Andrieux, P Antilogus, WD Apel, B Åsman, JE Augustin, A Augustinus, P Baillon, P Bambade, F Barao, R Barate, M Barbi, DY Bardin, A Baroncelli, O Barring, JA Barrio, W Bartl, MJ Bates, M Battaglia, M Baubillier, J Baudot, KH Becks, M Begalli, P Beilliere, Y Belokopytov, K Belous, AC Benvenuti, M Berggren, D Bertini, D Bertrand, M Besancon, F Bianchi, M Bigi, MS Bilenky, P Billoir, MA Bizouard, D Bloch, M Blume, T Bolognese, M Bonesini, W Bonivento, PSL Booth, C Bosio, O Botner, E Boudinov, B Bouquet, C Bourdarios, TJV Bowcock, M Bozzo, P Branching, KD Brand, T Brenke, RA Brenner, C Bricman, RCA Brown, P Brackman, JM Brunet, L Bugge, T Buran, T Burgsmueller, P Buschmann, A Buys, S Cabrera, M Caccia, M Calvi, AJ Camacho Rozas, T Camporesi, V Canale, M Canepa, K Cankocak, F Cao, F Carena, L Carroll, C Caso, MV Castillo Gimenez, A Cattai, FR Cavallo, V Chabaud, P Charpentier, L Chaussard, P Checchia, GA Chelkov, M Chen, R Chierici, P Chliapnikov, P Chochula, V Chorowicz, J Chudoba, V Cindro, P Collins

Abstract:

An upper limit for BR(Z0 -»3g) is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle multiplicity distributions. From the sample of threefold symmetric three-jet events collected by the DELPHI experiment at LEP during 1991-1994, the 95% confidence level upper limit is deduced to be: BR(Zn -> 3g) < 1.6 x 10~2 for the JADE and BR(Z0 -> 3g) < 1.5 x 10~2 for the DURHAM jet-finder.
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Measurement of elastic ω photoproduction at HERA

Zeitschrift fur Physik C-Particles and Fields 73:1 (1996) 73-84

Authors:

M Derrick, D Krakauer, S Magill, D Mikunas, B Musgrave, JR Okrasiński, J Repond, R Stanek, RL Talaga, H Zhang, MCK Mattingly, F Anselmo, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, P Bruni, G Cara Romeo, G Castellini, L Cifarelli, F Cindolo, A Contin, M Corradi, I Gialas, P Giusti, G Iacobucci, G Laurenti, G Levi, A Margotti, T Massam, R Nania, F Palmonari, A Pesci, A Polini, G Sartorelli, Y Zamora Garcia, A Zichichi, C Amelung, A Bornheim, J Crittenden, R Deffner, M Eckert, L Feld, A Frey, M Geerts, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, HP Jakob, UF Katz, S Mengel, E Paul, M Pfeiffer, C Rembser, D Schramm, J Stamm, R Wedemeyer, S Campbell-Robson, A Cassidy, WN Cottingham, N Dyce, B Foster, S George, ME Hayes, GP Heath, HF Heath, D Piccioni, DG Roff, RJ Tapper, R Yoshida, M Arneodo, R Ayad, M Capua, A Garfagnini, L Iannotti, M Schioppa, G Susinno, A Caldwell, N Cartiglia, Z Jing, W Liu, JA Parsons, S Ritz, F Sciulli, PB Straub, L Wai, S Yang, Q Zhu, P Borzemski, J Chwastowski, A Eskreys, Z Jakubowski, MB Przybycień, M Zachara, L Zawiejski
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Search for neutralinos, scalar leptons and scalar quarks in e+e- interactions at √s = 130 GeV and 136 GeV

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 387:3 (1996) 651-666

Authors:

P Abreu, W Adam, T Adye, E Agasi, I Ajinenko, GD Alekseev, R Alemany, PP Allport, S Almehed, U Amaldi, S Amato, P Andersson, A Andreazza, ML Andrieux, P Antilogus, WD Apel, B Åsman, JE Augustin, A Augustinus, P Baillon, P Bambade, F Barao, R Barate, M Barbi, DY Bardin, A Baroncelli, O Barring, JA Barrio, W Bartl, MJ Bates, M Battaglia, M Baubillier, J Baudot, KH Becks, M Begalli, P Beilliere, Y Belokopytov, AC Benvenuti, M Berggren, D Bertini, D Bertrand, M Besancon, F Bianchi, M Bigi, MS Bilenky, P Billoir, D Bloch, M Blume, T Bolognese, M Bonesini, W Bonivento, PSL Booth, C Bosio, O Botner, E Boudinov, B Bouquet, C Bourdarios, TJV Bowcock, M Bozzo, P Branchin, KD Brand, T Brenke, RA Brenner, C Bricman, RCA Brown, P Bruckman, JM Brunet, L Bugge, T Buran, T Burgsmueller, P Buschmann, A Buys, S Cabrera, M Caccia, M Calvi, A Camacho Rozas, T Camporesi, V Canale, M Canepa, K Cankocak, F Cao, F Carena, L Carroll, C Caso, MV Castillo Gimenez, A Cattai, FR Cavallo, V Chabaud, P Charpentier, L Chaussard, P Checchia, GA Chelkov, M Chen, R Chierici, P Chliapnikov, P Chochula, V Chorowicz, J Chudoba, V Cindro, P Collins

Abstract:

Using data accumulated by DELPHI during the November 1995 LEP run at 130-136 GeV, searches have been made for events with jets or leptons in conjunction with missing momentum. The results are interpreted in terms of limits on the production of neutralinos, scalar leptons, and scalar quarks.
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