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Measurement of the proton structure function F2 at very low Q2 at HERA

PHYSICS LETTERS B 487:1-2 (2000) 53-73

Authors:

J Breitweg, S Chekanov, M Derrick, D Krakauer, S Magill, B Musgrave, A Pellegrino, J Repond, R Stanek, R Yoshida, MCK Mattingly, G Abbiendi, 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 Sartorelli, YZ Garcia, A Zichichi, C Amelung, A Bornheim, I Brock, K Coböken, J Crittenden, R Deffner, H Hartmann, K Heinloth, E Hilger, P Irrgang, HP Jakob, A Kappes, UF Katz, R Kerger, E Paul, H Schnurbusch, A Stifutkin, J Tandler, KC Voss, A Weber, H Wieber, DS Bailey, O Barret, NH Brook, B Foster, GP Heath, HF Heath, JD McFall, D Piccioni, E Rodrigues, J Scott, RJ Tapper, M Capua, A Mastroberardino, M Schioppa, G Susinno, HY Jeoung, JY Kim, JH Lee, IT Lim, KJ Ma, MY Pac, A Caldwell, W Liu, X Liu, B Mellado, S Paganis, S Sampson, WB Schmidke, F Sciulli, J Chwastowski, A Eskreys, J Figiel, K Klimek, K Olkiewicz, K Piotrzkowski, MB Przybycien, P Stopa, L Zawiejski, B Bednarek, K Jelen, D Kisielewska, AM Kowal, T Kowalski, M Przybycien, E Rulikowska-Zarebska, L Suszycki, D Szuba, A Kotanski, LAT Bauerdick, U Behrens, JK Bienlein, C Burgard, D Dannheim, K Desler, G Drews, A Fox-Murphy, U Fricke, F Goebel, P Göttlicher, R Graciani, T Haas, W Hain, GF Hartner, D Hasell, K Hebbel, KF Johnson, M Kasemann, W Koch, U Kötz, H Kowalski, L Lindemann, B Löhr, M Martínez, M Milite, T Monteiro, M Moritz, D Notz, F Pelucchi, MC Petrucci, M Rohde, PRB Saull, AA Savin, U Schneekloth, F Selonke, M Sievers, S Stonjek, E Tassi, G Wolf, U Wollmer, C Youngman, W Zeuner, C Coldewey, ALD Viani, A Meyer, S Schlenstedt, PB Straub, G Barbagli, E Gallo, P Pelfer, G Maccarrone, L Votano, A Bamberger, A Benen, S Eisenhardt, P Markun, H Raach, S Wölfle, PJ Bussey, M Bell, AT Doyle, SW Lee, A Lupi, N Macdonald, GJ McCance, DH Saxon, LE Sinclair, IO Skillicorn, R Waugh, I Bohnet, N Gendner, U Holm, A Meyer-Larsen, H Salehi, K Wick, A Garfagnini, I Gialas, LK Gladilin, D Kçira, R Klanner, E Lohrmann, G Poelz, F Zetsche, R Goncalo, KR Long, DB Miller, AD Tapper, R Walker, U Mallik, P Cloth, D Filges, T Ishii, M Kuze, K Nagano, K Tokushuku, S Yamada, Y Yamazaki, SH Ahn, SB Lee, SK Park, H Lim, IH Park, D Son, F Barreiro, G García, C Glasman, O González, L Labarga, J del Peso, I Redondo, J Terrón, M Barbi, F Corriveau, DS Hanna, A Ochs, S Padhi, M Riveline, DG Stairs, M Wing, T Tsurugai, A Antonov, V Bashkirov, M Danilov, BA Dolgoshein, D Gladkov, V Sosnovtsev, S Suchkov, RK Dementiev, PF Ermolov, YA Golubkov, II Katkov, LA Khein, NA Korotkova, IA Korzhavina, VA Kuzmin, OY Lukina, AS Proskuryakov, LM Shcheglova, AN Solomin, NN Vlasov, SA Zotkin, C Bokel, M Botje, N Brümmer, J Engelen, S Grijpink, E Koffeman, P Kooijman, S Schagen, A van Sighem, H Tiecke, N Tuning, JJ Velthuis, J Vossebeld, L Wiggers, E de Wolf, D Acosta, B Bylsma, LS Durkin, J Gilmore, CM Ginsburg, CL Kim, TY Ling, S Boogert, AM Cooper-Sarkar, RCE Devenish, J Grosse-Knetter, T Matsushita, A Quadt, O Ruske, MR Sutton, R Walczak, A Bertolin, R Brugnera, R Carlin, F Dal Corso, U Dosselli, S Dusini, S Limentani, M Morandin, M Posocco, L Stanco, R Stroili, M Turcato, C Voci, L Adamczyk, L Iannotti, BY Oh, JR Okrasinski, WS Toothacker, JJ Whitmore, Y Iga, G D'Agostini, G Marini, A Nigro, C Cormack, JC Hart, NA McCubbin, TP Shah, D Epperson, C Heusch, HFW Sadrozinski, A Seiden, R Wichmann, DC Williams, N Pavel, H Abramowicz, S Dagan, S Kananov, A Kreisel, A Levy, T Abe, T Fusayasu, K Umemori, T Yamashita, R Hamatsu, T Hirose, M Inuzuka, S Kitamura, T Nishimura, M Arneodo, N Cartiglia, R Cirio, M Costa, MI Ferrero, S Maselli, V Monaco, C Peroni, M Ruspa, R Sacchi, A Solano, A Staiano, M Dardo, DC Bailey, CP Fagerstroem, R Galea, T Koop, GM Levman, JF Martin, RS Orr, S Polenz, A Sabetfakhri, D Simmons, JM Butterworth, CD Catterall, ME Hayes, EA Heaphy, TW Jones, JB Lane, BJ West, J Ciborowski, R Ciesielski, G Grzelak, RJ Nowak, JM Pawlak, R Pawlak, B Smalska, T Tymieniecka, AK Wróblewski, JA Zakrzewski, AF Zarnecki, M Adamus, T Gadaj, O Deppe, Y Eisenberg, D Hochman, U Karshon, WF Badgett, D Chapin, R Cross, C Foudas, S Mattingly, DD Reeder, WH Smith, A Vaiciulis, T Wildschek, M Wodarczyk, A Deshpande, S Dhawan, VW Hughes, S Bhadra, C Catterall, JE Cole, WR Frisken, R Hall-Wilton, M Khakzad, S Menary
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Measurement of the spin-density matrix elements in exclusive electroproduction of ρ0 mesons at HERA

EUROPEAN PHYSICAL JOURNAL C 12:3 (2000) 393-410

Authors:

J Breitweg, S Chekanov, M Derrick, D Krakauer, S Magill, B Musgrave, A Pellegrino, J Repond, R Stanek, R Yoshida, MCK Mattingly, G Abbiendi, 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 Sartorelli, YZ Garcia, A Zichichi, C Amelung, A Bornheim, I Brock, K Coböken, J Crittenden, R Deffner, M Eckert, H Hartmann, K Heinloth, E Hilger, HP Jakob, A Kappes, UF Katz, R Kerger, E Paul, J Rautenberg, H Schnurbusch, A Stifutkin, J Tandler, A Weber, H Wieber, DS Bailey, O Barret, WN Cottingham, B Foster, GP Heath, HF Heath, JD McFall, D Piccioni, J Scott, RJ Tapper, M Capua, A Mastroberardino, M Schioppa, G Susinno, HY Jeoung, JY Kim, JH Lee, IT Lim, KJ Ma, MY Pac, A Caldwell, W Liu, X Liu, B Mellado, JA Parsons, S Ritz, R Sacchi, S Sampson, F Sciulli, J Chwastowski, A Eskreys, J Figiel, K Klimek, K Olkiewicz, MB Przybycien, P Stopa, L Zawiejski, L Adamczyk, B Bednarek, K Jelen, D Kisielewska, AM Kowal, T Kowalski, M Przybycien, E Rulikowska-Zarebska, L Suszycki, J Zajac, Z Dulinski, A Kotanski, LAT Bauerdick, U Behrens, JK Bienlein, C Burgard, K Desler, G Drews, A Fox-Murphy, U Fricke, F Goebel, P Göttlicher, R Graciani, T Haas, W Hain, GF Hartner, D Hasell, K Hebbel, KF Johnson, M Kasemann, W Koch, U Kötz, H Kowalski, L Lindemann, B Löhr, M Martínez, J Milewski, M Milite, T Monteiro, M Moritz, D Notz, F Pelucci, MC Petrucci, K Piotrzkowski, M Rohde, PRB Saull, AA Savin, U Schneekloth, O Schwarzer, F Selonke, M Sievers, S Stonjek, E Tassi, G Wolf, U Wollmer, C Youngman, W Zeuner, BD Burow, C Coldewey, HJ Grabosch, ALD Viani, A Meyer, K Mönig, S Schlenstedt, PB Straub, G Barbagli, E Gallo, P Pelfer, G Maccarrone, L Votano, A Bamberger, S Eisenhardt, P Markun, H Raach, S Wölfle, NH Brook, PJ Bussey, AT Doyle, SW Lee, N Macdonald, GJ McCance, 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, I Gialas, LK Gladilin, D Kçira, R Klanner, E Lohrmann, G Poelz, F Zetsche, TC Bacon, JE Cole, G Howell, L Lamberti, KR Long, DB Miller, A Prinias, JK Sedgbeer, D Sideris, AD Tapper, R Walker, U Mallik, SM Wang, P Cloth, D Filges, T Ishii, M Kuze, I Suzuki, K Tokushuku, S Yamada, K Yamauchi, Y Yamazaki, SH Ahn, SH An, SJ Hong, SB Lee, SW Nam, SK Park, H Lim, IH Park, D Son, F Barreiro, JP Fernández, G García, C Glasman, JM Hernández, L Labarga, J del Peso, J Puga, I Redondo, J Terrón, F Corriveau, DS Hanna, J Hartmann, WN Murray, A Ochs, S Padhi, M Riveline, DG Stairs, M St-Laurent, M Wing, T Tsurugai, V Bashkirov, BA Dolgoshein, 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 Brümmer, J Engelen, E Koffeman, P Kooijman, A van Sighem, K Tiecke, N Tuning, JJ Velthuis, 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, HE Blaikley, S Boogert, RJ Cashmore, AM Cooper-Sarkar, RCE Devenish, JK Edmonds, J Grosse-Knetter, N Harnew, T Matsushita, VA Noyes, A Quadt, O Ruske, MR Sutton, R Walczak, DS Waters, A Bertolin, R Brugnera, R Carlin, F Dal Corso, S Dondana, U Dosselli, S Dusini, S Limentani, M Morandin, M Posocco, L Stanco, R Stroili, C Voci, L Iannotti, BY Oh, JR Okrasinski, WS Toothacker, JJ Whitmore, Y Iga, G D'Agostini, G Marini, A Nigro, M Raso, C Cormack, JC Hart, NA McCubbin, TP Shah, D Epperson, C Heusch, HFW Sadrozinski, A Seiden, R Wichmann, DC Williams, N Pavel, H Abramowicz, S Dagan, S Kananov, A Kreisel, A Levy, T Abe, T Fusayasu, M Inuzuka, K Nagano, K Umemori, T Yamashita, R Hamatsu, T Hirose, K Homma, S Kitamura, T Nishimura, M Arneodo, N Cartiglia, R Cirio, M Costa, MI Ferrero, S Maselli, V Monaco, C Peroni, M Ruspa, A Solano, A Staiano, M Dardo, DC Bailey, CP Fagerstroem, R Galea, T Koop, GM Levman, JF Martin, RS Orr, S Polenz, A Sabetfakhri, D Simmons, JM Butterworth, CD Catterall, ME Hayes, EA Heaphy, TW Jones, JB Lane, BJ West, J Ciborowski, R Ciesielski, G Grzelak, RJ Nowak, JM Pawlak, R Pawlak, B Smalska, T Tymieniecka, AK Wróblewski, JA Zakrzewski, AF Zarnecki, M Adamus, T Gadaj, O Deppe, Y Eisenberg, D Hochman, U Karshon, WF Badgett, D Chapin, R Cross, C Foudas, S Mattingly, DD Reeder, WH Smith, A Vaiciulis, T Wildschek, R Wodarczyk, A Deshpande, S Dhawan, VW Hughes, S Bhadra, WR Frisken, R Hall-Wilton, M Khakzad, S Menary, WB Schmidke
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Probing Balitsky-Fadin-Kuraev-Lipatov dynamics in the dijet cross section at large rapidity intervals in p(p)over-bar collisions at √s=1800 and 630 GeV

PHYSICAL REVIEW LETTERS 84:25 (2000) 5722-5727

Authors:

B Abbott, M Abolins, V Abramov, BS Acharya, DL Adams, M Adams, V Akimov, GA Alves, N Amos, EW Anderson, MM Baarmand, VV Babintsev, L Babukhadia, A Baden, B Baldin, S Banerjee, J Bantly, E Barberis, P Baringer, JF Bartlett, U Bassler, A Bean, A Belyaev, SB Beri, G Bernardi, I Bertram, VA Bezzubov, PC Bhat, V Bhatnagar, M Bhattacharjee, G Blazey, S Blessing, A Boehnlein, NI Bojko, F Borcherding, A Brandt, R Breedon, G Briskin, R Brock, G Brooijmans, A Bross, D Buchholz, V Buescher, VS Burtovoi, JM Butler, W Carvalho, D Casey, Z Casilum, H Castilla-Valdez, D Chakraborty, KM Chan, SV Chekulaev, W Chen, DK Cho, S Choi, S Chopra, BC Choudhary, JH Christenson, M Chung, D Claes, AR Clark, WG Cobau, J Cochran, L Coney, B Connolly, WE Cooper, D Coppage, D Cullen-Vidal, MAC Cummings, D Cutts, OI Dahl, K Davis, K De, K Del Signore, M Demarteau, D Denisov, SP Denisov, HT Diehl, M Diesburg, G Di Loreto, P Draper, Y Ducros, LV Dudko, SR Dugad, A Dyshkant, D Edmunds, J Ellison, VD Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, OV Eroshin, J Estrada, H Evans, VN Evdokimov, T Fahland, S Feher, D Fein, T Ferbel, HE Fisk, Y Fisyak, E Flattum, F Fleuret, M Fortner, KC Frame, S Fuess, E Gallas, AN Galyaev, P Gartung, V Gavrilov, RJ Genik, K Genser, CE Gerber, Y Gershtein, B Gibbard, R Gilmartin, G Ginther, B Gobbi, B Gómez, PI Goncharov, JLG Solís, H Gordon, LT Goss, K Gounder, A Goussiou, N Graf, PD Grannis, JA Green, H Greenlee, S Grinstein, P Grudberg, S Grünendahl, G Guglielmo, A Gupta, SN Gurzhiev, G Gutierrez, P Gutierrez, NJ Hadley, H Haggerty, S Hagopian, V Hagopian, KS Hahn, RE Hall, P Hanlet, S Hansen, JM Hauptman, C Hays, C Hebert, D Hedin, AP Heinson, U Heintz, T Heuring, R Hirosky, JD Hobbs, B Hoeneisen, JS Hoftun, AS Ito, SA Jerger, R Jesik, T Joffe-Minor, K Johns, M Johnson, A Jonckheere, M Jones, H Jöstlein, SY Jun, A Juste, S Kahn, E Kajfasz, D Karmanov, D Karmgard, R Kehoe, SK Kim, B Klima, C Klopfenstein, B Knuteson, W Ko, JM Kohli, AV Kostritskiy, J Kotcher, AV Kotwal, AV Kozelov, EA Kozlovsky, J Krane, MR Krishnaswamy, S Krzywdzinski, M Kubantsev, S Kuleshov, Y Kulik, S Kunori, G Landsberg, A Leflat, F Lehner, J Li, QZ Li, JGR Lima, D Lincoln, SL Linn, J Linnemann, R Lipton, JG Lu, A Lucotte, L Lueking, C Lundstedt, AKA Maciel, RJ Madaras, V Manankov, S Mani, HS Mao, R Markeloff, T Marshall, MI Martin, RD Martin, KM Mauritz, B May, AA Mayorov, R McCarthy, J McDonald, T McKibben, T McMahon, HL Melanson, M Merkin, KW Merritt, C Miao, H Miettinen, D Mihalcea, A Mincer, CS Mishra, N Mokhov, NK Mondal, HE Montgomery, M Mostafa, H da Motta, E Nagy, F Nang, M Narain, VS Narasimham, HA Neal, JP Negret, S Negroni, D Norman, L Oesch, V Oguri, B Olivier, N Oshima, P Padley, LJ Pan, A Para, N Parashar, R Partridge, N Parua, M Paterno, A Patwa, B Pawlik, J Perkins, M Peters, R Piegaia, H Piekarz, BG Pope, E Popkov, HB Prosper, S Protopopescu, J Qian, PZ Quintas, R Raja, S Rajagopalan, NW Reay, S Reucroft, M Rijssenbeek, T Rockwell, M Roco, P Rubinov, R Ruchti, J Rutherfoord, A Santoro, L Sawyer, RD Schamberger, H Schellman, A Schwartzman, J Sculli, N Sen, E Shabalina, HC Shankar, RK Shivpuri, D Shpakov, M Shupe, RA Sidwell, H Singh, JB Singh, V Sirotenko, P Slattery, E Smith, RP Smith, R Snihur, GR Snow, J Snow, S Snyder, J Solomon, XF Song, V Sorín, M Sosebee, N Sotnikova, M Souza, NR Stanton, G Steinbrück, RW Stephens, ML Stevenson, F Stichelbaut, D Stoker, V Stolin, DA Stoyanova, M Strauss, K Streets, M Strovink, L Stutte, A Sznajder, J Tarazi, W Taylor, S Tentindo-Repond, TLT Thomas, J Thompson, D Toback, TG Trippe, AS Turcot, PM Tuts, P van Gemmeren, V Vaniev, N Varelas, AA Volkov, AP Vorobiev, HD Wahl, H Wang, J Warchol, G Watts, M Wayne, H Weerts, A White, JT White, D Whiteson, JA Wightman, S Willis, SJ Wimpenny, JVD Wirjawan, J Womersley, DR Wood, R Yamada, P Yamin, T Yasuda, K Yip, S Youssef, J Yu, Z Yu, M Zanabria, H Zheng, Z Zhou, ZH Zhu, M Zielinski, D Zieminska, A Zieminski, V Zutshi, EG Zverev, A Zylberstejn
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Radiation hard optical links for the ATLAS SCT and pixel detectors.

CERN REPORT 2000:10 (2000) 294-298

Authors:

DG Charlton, JD Dowell, RJ Homer, P Jovanovic, G Mahout, HR Shaylor, JA Wilson, RL Wastie, AR Weidberg, S Galagedera, MC Morrissey, JK Troska, DJ White, A Rudge, IM Gregor, ML Chu, SC Lee, PK Teng

Abstract:

The radiation hard opto-electronic links being developed for the ATLAS Semiconductor Tracker (SCT) and Pixel detectors are described. The results of the radiation tests on all the on-detector components are reviewed. Results of environmental tests of irradiated opto-packages are mentioned. New results on Single Event Upset Studies are presented and the implications for ATLAS operation are discussed.Two versions of the ATLAS SCT style on-detector opto-package are described. The performance of these packages are compared to the ATLAS specifications. These packages have been integrated into the SCT system and extensive system tests have been performed. The experience with the assembly of the first larger scale integration is discussed.
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Radiation hardness and lifetime of VCSELs and PIN photodiodes for use in the ATLAS SCT

P SOC PHOTO-OPT INS 4134 (2000) 206-213

Authors:

G Mahout, DG Charlton, JD Dowell, IM Gregor, RJ Homer, P Jovanovic, A Kootz, RB Nickerson, R Wastie, AR Weidberg

Abstract:

This paper reports the radiation hardness of optical components to be used in the binary readout of one of the next generation of detectors in high energy physics. The optical components will have to sustain a total ionising dose of 500 kGy and a 1 MeV equivalent neutron fluence of 10(15)n cm(-2). Emitters of VCSEL type have been chosen and have shown a shift of 1 mA in the laser threshold current after irradiation, but are still suitable for our purpose. The epitaxial Si PIN photodiode receivers have an acceptable 30% drop in responsivity providing a higher reverse bias is applied. Speed and lifetime of both components appear to be unaffected by the radiation damage. Temperature characteristics showing differences from un-irradiated materials will be also presented.
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