J/ψ production in pp̄ collisions at √s = 1.8 TeV

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics 370:1-2 (1996) 239-248

Authors:

S Abachi, B Abbott, M Abolins, BS Acharya, I Adam, DL Adams, M Adams, S Ahn, H Aihara, J Alitti, G Álvarez, GA Alves, E Amidi, N Amos, EW Anderson, SH Aronson, R Astur, RE Avery, A Baden, V Balamurali, J Balderston, B Baldin, J Bantly, JF Bartlett, K Bazizi, J Bendich, SB Beri, I Bertram, VA Bezzubov, PC Bhat, V Bhatnagar, M Bhattacharjee, A Bischoff, N Biswas, G Blazey, S Blessing, P Bloom, A Boehnlein, NI Bojko, F Borcherding, J Borders, C Boswell, A Brandt, R Brock, A Bross, D Buchholz, VS Burtovoi, JM Butler, W Carvalho, D Casey, H Castilla-Valdez, D Chakraborty, SM Chang, SV Chekulaev, LP Chen, W Chen, S Chopra, BC Choudhary, JH Christenson, M Chung, D Claes, AR Clark, WG Cobau, J Cochran, WE Cooper, C Cretsinger, D Cullen-Vidal, MAC Cummings, D Cutts, OI Dahl, K De, M Demarteau, R Demina, K Denisenko, N Denisenko, D Denisov, SP Denisov, HT Diehl, M Diesburg, G di Loreto, R Dixon, P Draper, J Drinkard, Y Ducros, SR Dugad, S Durston-Johnson, D Edmunds, J Ellison, VD Elvira, R Engelmann, S Eno, G Eppley, P Ermolov, OV Eroshin, VN Evdokimov, S Fahey, T Fahland, M Fatyga, MK Fatyga, J Featherly

Abstract:

We have studied J/ψ production in pp̄ collisions at √s = 1.8 TeV with the DØ detector at Fermilab using μ+- data. We have measured the inclusive J/ψ production cross section as a function of J/ψ transverse momentum, pT. For the kinematic range pT > 8 GeV/c and |η\ < 0.6 we obtain σ(pp̄ → J/ψ + X) ·Br(J/ψ → μ+μ-) = 2.08 ± 0.17(stat) ± 0.46(syst) nb. Using the muon impact parameter we have estimated the fraction of J/ψ mesons coming from B meson decays to be fb = 0.35 ± 0.09(stat)±0.10(syst) and inferred the inclusive b production cross section. From the information on the event topology the fraction of nonisolated J/ψ events has been measured to be fnonisol = 0.64 ± 0.08(stat)±0.06(syst). We have also obtained the fraction of J/ψ events resulting from radiative decays of χc states, fχ = 0.32 ± 0.07(stat)±0.07(syst). We discuss the implications of our measurements for charmonium production processes.

Search for Chargino-Neutralino Production in \ppb\sp Collisions at $\sqrt{s} = 1.8$ TeV

ArXiv hep-ex/9603001 (1996)

Inclusive charged particle distributions in deep inelastic scattering events at HERA

Zeitschrift für Physik C Particles and Fields Springer Nature 70:1 (1996) 1-15

Authors:

M Derrick, D Krakauer, S Magill, D Mikunas, B Musgrave, J Repond, R Stanek, RL Talaga, H Zhang, 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 Polini, G Sartorelli, Y Zamora Garcia, A Zichichi, A Bornheim, J Crittenden, K Desch, B Diekmann, T Doeker, M Eckert, L Feld, A Frey, M Geerts, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, H-P Jakob, UF Katz, S Mengel, J Mollen, E Paul, M Pfeiffer, Ch 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, CJS Morgado, JA O’Mara, D Piccioni, DG Roff, RJ Tapper, R Yoshida, RR Rau, M Arneodo, R Ayad, M Capua, A Garfagnini, L Iannotti, M Schioppa, G Susinno, A Bernstein, A Caldwell, N Cartiglia, JA Parsons, S Ritz, F Sciulli, PB Straub, L Wai, S Yang, Q Zhu, P Borzemski, J Chwastowski, A Eskreys, K Piotrzkowski, M Zachara, L Zawiejski, L Adamczyk, B Bednarek, K Jeleń, D Kisielewska, T Kowalski, M Przybycień, E Rulikowska-Zarębska, L Suszycki, J Zajac, A Kotański, LAT Bauerdick, U Behrens, H Beier, JK Bienlein, C Coldewey, O Deppe, K Desler, G Drews, M Flasiński, DJ Gilkinson, C Glasman, P Göttlicher, J Große-Knetter, B Gutjahr, T Haas, W Hain, D Hasell, H Heßling, Y Iga, KF Johnson, P Joos, M Kasemann, R Klanner, W Koch, L Köpke, U Kötz, H Kowalski, J Labs, A Ladage, B Löhr, M Löwe, D Lüke, J Mainusch, O Mańczak, T Monteiro, JST Ng, S Nickel, D Notz, K Ohrenberg, M Roco, M Rohde, J Roldán, U Schneekloth, W Schulz, F Selonke, E Stiliaris, B Surrow, T Voß, D Westphal, G Wolf, C Youngman, W Zeuner, JF Zhou, HJ Grabosch, A Kharchilava, A Leich, SM Mari, MCK Mattingly, A Meyer, S Schlenstedt, N Wulff, G Barbagli, E Gallo, P Pelfer, G Maccarrone, S De Pasquale, L Votano, A Bamberger, S Eisenhardt, A Freidhof, S Söldner-Rembold, J Schroeder, T Trefzger, JT Bromley, NH Brook, PJ Bussey, AT Doyle, DH Saxon, ML Utley, AS Wilson, A Dannemann, U Holm, D Horstmann, T Neumann, R Sinkus, K Wick, E Badura, BD Burow, L Hagge, E Lohrmann, J Milewski, M Nakahata, N Pavel, G Poelz, W Schott, F Zetsche, TC Bacon, N Bruemmer, I Butterworth, VL Harris, BYH Hung, KR Long, DB Miller, PPO Morawitz, A Prinias, JK Sedgbeer, AF Whitfield, U Mallik, E McCliment, MZ Wang, SM Wang, JT Wu, P Cloth, D Filges, SH An, GH Cho, BJ Ko, SB Lee, SW Nam, HS Park, SK Park, R Imlay, S Kartik, H-J Kim, RR McNeil, W Metcalf, VK Nadendla, F Barreiro, G Cases, JP Fernandez, R Graciani, JM Hernández, L Hervás, L Labarga, M Martinez, J del Peso, J Puga, J Terron, JF de Trocóniz, GR Smith, F Corriveau, DS Hanna, J Hartmann, LW Hung, JN Lim, CG Matthews, PM Patel, LE Sinclair, DG Stairs, M St fnLaurent, R Ullmann, G Zacek, V Bashkirov, BA Dolgoshein, A Stifutkin, GL Bashindzhagyan, PF Ermolov, LK Gladilin, Yu A Golubkov, VD Kobrin, IA Korzhavina, VA Kuzmin, O Yu Lukina, AS Proskuryakov, AA Savin, LM Shcheglova, AN Solomin, NP Zotov, M Botje, F Chlebana, A Dake, J Engelen, M de Kamps, P Kooijman, A Kruse, H Tiecke, W Verkerke, M Vreeswijk, L Wiggers, E de Wolf, R van Woudenberg, D Acosta, B Bylsma, LS Durkin, J Gilmore, K Honscheid, C Li, TY Ling, KW Mclean, P Nylander, IH Park, TA Romanowski, R Seidlein, DS Bailey, A Byrne, RJ Cashmore, AM Cooper-Sarkar, 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, G Abbiendi, A Bertolin, R Brugnera, R Carlin, F Dal Corso, M De Giorgi, U Dosselli, S Limentani, M Morandin, M Posocco, L Stanco, R Stroili, C Voci, J Bulmahn, JM Butterworth, RG Feild, BY Oh, JR Okrasinski, JJ Whitmore, G D’Agostini, G Marini, A Nigro, E Tassi, JC Hart, NA McCubbin, K Prytz, TP Shah, TL Short, E Barberis, T Dubbs, C Heusch, M Van Hook, W Lockman, JT Rahn, HF-W Sadrozinski, A Seiden, DC Williams, J Biltzinger, RJ Seifert, O Schwarzer, AH Walenta, G Zech, H Abramowicz, G Briskin, S Dagan, A Levy, JI Fleck, T Hasegawa, M Hazumi, T Ishii, M Kuze, S Mine, Y Nagasawa, M Nakao, I Suzuki, K Tokushuku, S Yamada, Y Yamazaki, M Chiba, R Hamatsu, T Hirose, K Homma, S Kitamura, Y Nakamitsu, K Yamauchi, R Cirio, M Costa, MI Ferrero, L Lamberti, S Maselli, C Peroni, R Sacchi, A Solano, A Staiano, M Dardo, DC Bailey, F Benard, M Brkic, GF Hartner, KK Joo, GM Levman, JF Martin, RS Orr, S Polenz, CR Sampson, RJ Teuscher, CD Catterall, TW Jones, PB Kaziewicz, JB Lane, RL Saunders, J Shulman, K Blankenship, B Lu, LW Mo, W Bogusz, K Charchuła, J Ciborowski, J Gajewski, G Grzelak, M Kasprzak, M Krzyżanowski, K Muchorowski, RJ Nowak, JM Pawlak, T Tymieniecka, AK Wróblewski, JA Zakrzewski, AF Żarnecki, M Adamus, Y Eisenberg, U Karshon, D Revel, D Zer-Zion, I Ali, WF Badgett, B Behrens, S Dasu, C Fordham, C Foudas, A Goussiou, RJ Loveless, DD Reeder, S Silverstein, WH Smith, A Vaiciulis, M Wodarczyk, T Tsurugai, S Bhadra, ML Cardy, C-P Fagerstroem, WR Frisken, M Khakzad, WN Murray, WB Schmidke

Abstract:

A measurement of inclusive charged particle distributions in deep inelasticep scattering forγ*p centre-of-mass energies 75

Study of charged—currentep interactions atQ2>200 GeV2 with the ZEUS detector at HERA

Zeitschrift für Physik C Particles and Fields Springer Nature 72:1 (1996) 47-64

Authors:

M Derrick, D Krakauer, S Magill, D Mikunas, B Musgrave, JR Okrasinski, J Repond, R Stanek, RL Talaga, H Zhang, MCK Mattingly, 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, T Doeker, M Eckert, L Feld, A Frey, M Geerts, M Grothe, H Hartmann, K Heinloth, L Heinz, E Hilger, H-P Jakob, UF Katz, S Mengel, E Paul, M Pfeiffer, Ch 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, L Adamczyk, B Bednarek, K Jeleń, D Kisielewska, T Kowalski, M Przybycień, E Rulikowska-Zarębska, L Suszycki, J Zając, Z Duliński, A Kotański, G Abbiendi, LAT Bauerdick, U Behrens, H Beier, JK Bienlein, G Cases, O Deppe, K Desler, G Drews, M Flasiński, DJ Gilkinson, C Glasman, P Göttlicher, J Große-Knetter, T Haas, W Hain, D Hasell, H Heßling, Y Iga, KF Johnson, P Joos, M Kasemann, R Klanner, W Koch, U Kötz, H Kowalski, J Labs, A Ladage, B Löhr, M Löwe, D Lüke, J Mainusch, O Mańczak, J Milewski, T Monteiro, JST Ng, D Notz, K Ohrenberg, K Piotrzkowski, M Roco, M Rohde, J Roldán, U Schneekloth, W Schulz, F Selonke, B Surrow, E Tassi, T Voß, D Westphal, G Wolf, U Wollmer, C Youngman, W Zeuner, HJ Grabosch, A Kharchilava, SM Mari, A Meyer, S Schlenstedt, N Wulff, G Barbagli, E Gallo, P Pelfer, G Maccarrone, S De Pasquale, L Votano, A Bamberger, S Eisenhardt, T Trefzger, S Wölfle, JT Bromley, NH Brook, PJ Bussey, AT Doyle, DH Saxon, LE Sinclair, ML Utley, 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 Brümmer, 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, S Kartik, H-J Kim, RR McNeil, W Metcalf, VK Nadendla, F Barreiro, JP Fernandez, R Graciani, JM Hernández, L Hervás, L Labarga, M Martinez, J del Peso, J Puga, J Terron, JF de Trocóniz, F Corriveau, DS Hanna, J Hartmann, LW Hung, JN Lim, CG Matthews, PM Patel, M Riveline, DG Stairs, M St-Laurent, R Ullmann, G Zacek, T Tsurugai, V Bashkirov, BA Dolgoshein, A Stifutkin, GL Bashindzhagyan, PF Ermolov, LK Gladilin, Yu A Golubkov, VD Kobrin, IA Korzhavina, VA Kuzmin, O Yu Lukina, AS Proskuryakov, AA Savin, LM Shcheglova, AN Solomin, NP Zotov, M Botje, F Chlebana, J Engelen, M de Kamps, P Kooijman, A Kruse, A van Sighem, H Tiecke, W Verkerke, J Vossebeld, M Vreeswijk, L Wiggers, E de Wolf, R van Woudenberg, D Acosta, B Bylsma, LS Durkin, J Gilmore, C Li, TY Ling, P Nylander, IH Park, TA Romanowski, DS Bailey, RJ Cashmore, AM Cooper-Sarkar, 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 Dal Corso, M De Giorgi, 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 D’Agostini, G Marini, A Nigro, JC Hart, NA McCubbin, TP Shah, E Barberis, T Dubbs, C Heusch, M Van Hook, W Lockman, JT Rahn, HF-W Sadrozinski, A Seiden, DC Williams, J Biltzinger, RJ Seifert, O Schwarzer, AH Walenta, H Abramowicz, G Briskin, S Dagan, 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, C-P 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 Krzyżanowski, K Muchorowski, RJ Nowak, JM Pawlak, T Tymieniecka, AK Wróblewski, JA Zakrzewski, AF Żarnecki, M Adamus, C Coldewey, Y Eisenberg, D Hochman, U Karshon, D Revel, D Zer-Zion, 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, WN Murray, WB Schmidke

Measurement of the Diffractive Cross Section in Deep Inelastic Scattering

ArXiv hep-ex/9602010 (1996)