Using the ZEUS detector at HERA, we have studied the reaction e(+)p --> e(+)X for Q(2) > 5000 GeV2 with a 20.1 pb(-1) data sample collected during the years 1993 to 1996. For Q(2) below 15000 GeV2, the data are in good agreement with Standard Model expectations. For Q(2) > 35000 GeV2. two events are observed while 0.145 +/- 0.013 events are expected, A statistical analysis of a large ensemble of simulated Standard Model experiments indicates that with probability 6.0%, an excess at least as unlikely as that observed would occur above some Q(2) cut. For x > 0.55 and y > 0.75, four events are observed where 0.91 +/- 0.08 events are expected, A statistical analysis of the two-dimensional distribution of the events in x and y yields a probability of 0.72% for the region x > 0.55 and y > 0.25 and a probability of 7.8% for the entire Q(2) > 5000 GeV2 data sample. The observed excess above Standard Model expectations is particularly interesting because it occurs in a previously unexplored kinematic region. RI Bashkirov, Vladimir/A-4818-2008; De Pasquale, Salvatore/B-9165-2008; Lancaster, Mark/C-1693-2008; Doyle, Anthony/C-5889-2009; Gladilin, Leonid/B-5226-2011; Golubkov, Yury/E-1643-2012
Using the ZEUS detector at HERA, we have studied the reaction e(+)p --> e(+)X for Q(2) > 5000 GeV2 with a 20.1 pb(-1) data sample collected during the years 1993 to 1996. For Q(2) below 15000 GeV2, the data are in good agreement with Standard Model expectations. For Q(2) > 35000 GeV2. two events are observed while 0.145 +/- 0.013 events are expected, A statistical analysis of a large ensemble of simulated Standard Model experiments indicates that with probability 6.0%, an excess at least as unlikely as that observed would occur above some Q(2) cut. For x > 0.55 and y > 0.75, four events are observed where 0.91 +/- 0.08 events are expected, A statistical analysis of the two-dimensional distribution of the events in x and y yields a probability of 0.72% for the region x > 0.55 and y > 0.25 and a probability of 7.8% for the entire Q(2) > 5000 GeV2 data sample. The observed excess above Standard Model expectations is particularly interesting because it occurs in a previously unexplored kinematic region.
Comparison of ZEUS data with standard model predictions for e(+)p->e(+)X scattering at high x and Q(2) / Breitweg, J; Derrick, M; Krakauer, D; Magill, S; Mikunas, D; Musgrave, B; Repond, J; Stanek, R; Talaga, Rl; Yoshida, R; Zhang, H; Mattingly, Mck; Anselmo, F; Antonioli, P; Bari, G; Basile, M; Bellagamba, L; Boscherini, D; Bruni, A; Bruni, G; Romeo, Gc; Castellini, G; Cifarelli, L; Cindolo, F; Contin, A; Corradi, M; Depasquale, S; Gialas, I; Giusti, P; Iacobucci, G; Laurenti, G; Levi, G; Margotti, A; Massam, T; Nania, R; Palmonari, F; Pesci, A; Polini, A; Sartorelli, G; Garcia, Yz; Zichichi, A; Amelung, C; Bornheim, A; Brock, I; Coboken, K; Crittenden, J; Deffner, R; Eckert, M; Feld, L; Grothe, M; Hartmann, H; Heinloth, K; Heinz, L; Hilger, E; Jakob, Hp; Katz, Uf; Paul, E; Pfeiffer, M; Rembser, C; Stamm, J; Wedemeyer, R; Bailey, Ds; Campbellrobson, S; Cottingham, Wn; Foster, B; Hallwilton, R; Hayes, Me; Heath, Gp; Heath, Hf; Piccioni, D; Roff, Dg; Tapper, Rj; Arneodo, M; Ayad, R; Garfagnini, A; Iannotti, L; Schioppa, Marco; Susinno, G; Kim, Jy; Lee, Jh; Lim, It; Pac, My; Caldwell, A; Cartiglia, N; Jing, Z; Liu, W; Parsons, Ja; Ritz, S; Sampson, S; Sciulli, F; Straub, Pb; Zhu, Q; Borzemski, P; Chwastowski, J; Eskreys, A; Jakubowski, Z; Przybycien, Mb; Zachara, M; Zawiejski, L; Adamczyk, L; Bednarek, B; Jelen, K; Kisielewska, D; Kowalski, T; Przybycieo, M; Rulikowskazarebska, E; Suszycki, L; Zajac, J; Dulinski, Z; Kotanski, A; Abbiendi, G; Bauerdick, Lat; Behrens, U; Beier, H; Bienlein, Jk; Cases, G; Deppe, O; Desler, K; Drews, G; Gilkinson, Dj; Glasman, C; Gottlicher, P; Grosseknetter, J; Haas, T; Hain, W; Hasell, D; Hessling, H; Iga, Y; Johnson, Kf; Kasemann, M; Koch, W; Kotz, U; Kowalski, H; Labs, J; Lindemann, L; Lohr, B; Lowe, M; Mainusch, J; Manczak, O; Milewski, J; Monteiro, T; Ng, Jst; Notz, D; Ohrenberg, K; Park, Jh; Pellegrino, A; Pelucchi, F; Piotrkowski, K; Roco, M; Rohde, M; Roldan, J; Savin, Aa; Schneekloth, U; Schulz, W; Selonke, F; Surrow, B; Voss, T; Westphal, D; Wolf, G; Wollmer, U; Youngman, C; Zarnecki, Af; Zeuner, W; Burow, Bd; Grabosch, Hj; Meyer, A; Schlenstedt, S; Barbagli, G; Gallo, E; Pelfer, P; Maccarrone, G; Votano, L; Bamberger, A; Eisenhardt, S; Markun, P; Trefzger, T; Wolfle, S; Bromley, Jt; Brook, Nh; Bussey, Pj; Doyle, At; Saxon, Dh; Sinclair, Le; Strickland, E; Utley, Ml; Waugh, R; Wilson, As; Bohnet, I; Gendner, N; Holm, U; Meyerlarsen, A; Salehi, H; Wick, K; Gladilin, Lk; Klanner, R; Lohrmann, E; Poelz, G; Schott, W; Zetsche, F; Bacon, Tc; Butterworth, I; Cole, Je; Harris, Vl; Howell, G; Hung, Bhy; Lamberti, L; Long, Kr; Miller, Db; Pavel, N; Prinias, A; Sedgbeer, Jk; Sideris, D; Whitfield, Af; Mallik, U; Wang, Sm; Wu, Jt; Cloth, P; Filges, D; An, Sh; Lee, Sb; Nam, Sw; Park, Hs; Park, Sk; Barreiro, F; Fernandez, Jp; Graciani, R; Hernandez, Jm; Hervas, L; Labarga, L; Martinez, M; Delpeso, J; Puga, J; Terron, J; Detroconiz, Jf; Corriveau, F; Hanna, Ds; Hartmann, J; Hung, Lw; Lim, Jn; Murray, Wn; Ochs, A; Riveline, M; Stairs, Dg; Stlaurent, M; Ullmann, R; Tsurugai, T; Bashkirov, V; Dolgoshein, Ba; Stifutkin, A; Bashindzhagyan, Gl; Ermolov, Pf; Golubkov, Ya; Kobrin, Vd; Korzhavina, La; Kuzmin, Va; Lukina, Oy; Proskuryakov, As; Shcheglova, Lm; Solomin, An; Zotov, Np; Bokel, C; Botje, M; Brummer, N; Chlebana, F; Engelen, J; Dekamps, M; Kooijman, P; Kruse, A; Vansighem, A; Tiecke, H; Verkerke, W; Vossebeld, J; Vreeswijk, M; Wiggers, L; Dewolf, E; Acosta, D; Bylsma, B; Durkin, Ls; Gilmore, J; Ginsburg, Ch; Kim, Cl; Ling, Ty; Nylander, P; Romanowski, Ta; Blaikley, He; Cashmore, Rj; Coopersarkar, Am; Devenish, Rce; Edmonds, Jk; Harnew, N; Lancaster, M; Mcfall, Jd; Nath, C; Noyes, Va; Quadt, A; Tickner, Jr; Uijterwaal, H; Walczak, R; Waters, Ds; Yip, T; Bertolin, A; Brugnera, R; Carlin, R; Dalcorso, F; Dosselli, U; Limentani, S; Morandin, M; Posocco, M; Stanco, L; Stroili, R; Voci, C; Bulmahn, J; Feild, Rg; Oh, By; Okrasinski, Jr; Whitmore, Jj; Marini, G; Nigro, A; Hart, Jc; Mccubbin, Na; Shah, Tp; Barberis, E; Dubbs, T; Heusch, C; Vanhook, M; Lockman, W; Rahn, Jt; Sadrozinski, Hfw; Seiden, A; Williams, Dc; Schwarzer, O; Walenta, Ah; Abramowicz, H; Briskin, G; Dagan, S; Doeker, T; Kananov, S; Levy, A; Abe, T; Fleck, Ji; Inuzuka, M; Ishii, T; Kuze, M; Nagano, K; Nakao, M; Suzuki, I; Tokushuku, K; Umemori, K; Yamada, S; Yamazaki, Y; Hamatsu, R; Hirose, T; Homma, K; Kitamura, S; Matsushita, T; Yamauchi, K; Cirio, R; Costa, M; Ferrero, Mi; Maselli, S; Monaco, V; Peroni, C; Petrucci, Mc; Sacchi, R; Solano, A; Staiano, A; Dardo, M; Bailey, Dc; Brkic, M; Fagerstroem, Cp; Hartner, Gf; Joe, Kk; Levman, Gm; Martin, Jf; Orr, Rs; Polenz, S; Sampson, Cr; Simmons, D; Teuscher, Rj; Butterworth, Jm; Catterall, Cd; Jones, Tw; Kaziewicz, Pb; Lane, Jb; Saunders, Rl; Shulman, J; Sutton, Mr; Lu, B; Mo, Lw; Ciborowski, J; Grzelak, G; Kasprzak, M; Muchorowski, K; Nowak, Rj; Pawlak, Jm; Pawlak, R; Tymieniecka, T; Wroblewski, Ak; Zakrzewski, Ja; Adamus, M; Coldewey, C; Eisenberg, Y; Hochman, D; Karshon, U; Revel, D; Badgett, Wf; Chapin, D; Cross, R; Dasu, S; Foudas, C; Loveless, Rj; Mattingly, S; Reeder, Dd; Smith, Wh; Vaiciulis, A; Wodarczyk, M; Bhadra, S; Frisken, Wr; Khakzad, M; Schmidke, Wb; Capua, Marcella; Schioppa, M; Tassi, Enrico. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - 74:2(1997), pp. 207-220.
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Titolo: | Comparison of ZEUS data with standard model predictions for e(+)p->e(+)X scattering at high x and Q(2) |
Autori: | |
Data di pubblicazione: | 1997 |
Rivista: | |
Citazione: | Comparison of ZEUS data with standard model predictions for e(+)p->e(+)X scattering at high x and Q(2) / Breitweg, J; Derrick, M; Krakauer, D; Magill, S; Mikunas, D; Musgrave, B; Repond, J; Stanek, R; Talaga, Rl; Yoshida, R; Zhang, H; Mattingly, Mck; Anselmo, F; Antonioli, P; Bari, G; Basile, M; Bellagamba, L; Boscherini, D; Bruni, A; Bruni, G; Romeo, Gc; Castellini, G; Cifarelli, L; Cindolo, F; Contin, A; Corradi, M; Depasquale, S; Gialas, I; Giusti, P; Iacobucci, G; Laurenti, G; Levi, G; Margotti, A; Massam, T; Nania, R; Palmonari, F; Pesci, A; Polini, A; Sartorelli, G; Garcia, Yz; Zichichi, A; Amelung, C; Bornheim, A; Brock, I; Coboken, K; Crittenden, J; Deffner, R; Eckert, M; Feld, L; Grothe, M; Hartmann, H; Heinloth, K; Heinz, L; Hilger, E; Jakob, Hp; Katz, Uf; Paul, E; Pfeiffer, M; Rembser, C; Stamm, J; Wedemeyer, R; Bailey, Ds; Campbellrobson, S; Cottingham, Wn; Foster, B; Hallwilton, R; Hayes, Me; Heath, Gp; Heath, Hf; Piccioni, D; Roff, Dg; Tapper, Rj; Arneodo, M; Ayad, R; Garfagnini, A; Iannotti, L; Schioppa, Marco; Susinno, G; Kim, Jy; Lee, Jh; Lim, It; Pac, My; Caldwell, A; Cartiglia, N; Jing, Z; Liu, W; Parsons, Ja; Ritz, S; Sampson, S; Sciulli, F; Straub, Pb; Zhu, Q; Borzemski, P; Chwastowski, J; Eskreys, A; Jakubowski, Z; Przybycien, Mb; Zachara, M; Zawiejski, L; Adamczyk, L; Bednarek, B; Jelen, K; Kisielewska, D; Kowalski, T; Przybycieo, M; Rulikowskazarebska, E; Suszycki, L; Zajac, J; Dulinski, Z; Kotanski, A; Abbiendi, G; Bauerdick, Lat; Behrens, U; Beier, H; Bienlein, Jk; Cases, G; Deppe, O; Desler, K; Drews, G; Gilkinson, Dj; Glasman, C; Gottlicher, P; Grosseknetter, J; Haas, T; Hain, W; Hasell, D; Hessling, H; Iga, Y; Johnson, Kf; Kasemann, M; Koch, W; Kotz, U; Kowalski, H; Labs, J; Lindemann, L; Lohr, B; Lowe, M; Mainusch, J; Manczak, O; Milewski, J; Monteiro, T; Ng, Jst; Notz, D; Ohrenberg, K; Park, Jh; Pellegrino, A; Pelucchi, F; Piotrkowski, K; Roco, M; Rohde, M; Roldan, J; Savin, Aa; Schneekloth, U; Schulz, W; Selonke, F; Surrow, B; Voss, T; Westphal, D; Wolf, G; Wollmer, U; Youngman, C; Zarnecki, Af; Zeuner, W; Burow, Bd; Grabosch, Hj; Meyer, A; Schlenstedt, S; Barbagli, G; Gallo, E; Pelfer, P; Maccarrone, G; Votano, L; Bamberger, A; Eisenhardt, S; Markun, P; Trefzger, T; Wolfle, S; Bromley, Jt; Brook, Nh; Bussey, Pj; Doyle, At; Saxon, Dh; Sinclair, Le; Strickland, E; Utley, Ml; Waugh, R; Wilson, As; Bohnet, I; Gendner, N; Holm, U; Meyerlarsen, A; Salehi, H; Wick, K; Gladilin, Lk; Klanner, R; Lohrmann, E; Poelz, G; Schott, W; Zetsche, F; Bacon, Tc; Butterworth, I; Cole, Je; Harris, Vl; Howell, G; Hung, Bhy; Lamberti, L; Long, Kr; Miller, Db; Pavel, N; Prinias, A; Sedgbeer, Jk; Sideris, D; Whitfield, Af; Mallik, U; Wang, Sm; Wu, Jt; Cloth, P; Filges, D; An, Sh; Lee, Sb; Nam, Sw; Park, Hs; Park, Sk; Barreiro, F; Fernandez, Jp; Graciani, R; Hernandez, Jm; Hervas, L; Labarga, L; Martinez, M; Delpeso, J; Puga, J; Terron, J; Detroconiz, Jf; Corriveau, F; Hanna, Ds; Hartmann, J; Hung, Lw; Lim, Jn; Murray, Wn; Ochs, A; Riveline, M; Stairs, Dg; Stlaurent, M; Ullmann, R; Tsurugai, T; Bashkirov, V; Dolgoshein, Ba; Stifutkin, A; Bashindzhagyan, Gl; Ermolov, Pf; Golubkov, Ya; Kobrin, Vd; Korzhavina, La; Kuzmin, Va; Lukina, Oy; Proskuryakov, As; Shcheglova, Lm; Solomin, An; Zotov, Np; Bokel, C; Botje, M; Brummer, N; Chlebana, F; Engelen, J; Dekamps, M; Kooijman, P; Kruse, A; Vansighem, A; Tiecke, H; Verkerke, W; Vossebeld, J; Vreeswijk, M; Wiggers, L; Dewolf, E; Acosta, D; Bylsma, B; Durkin, Ls; Gilmore, J; Ginsburg, Ch; Kim, Cl; Ling, Ty; Nylander, P; Romanowski, Ta; Blaikley, He; Cashmore, Rj; Coopersarkar, Am; Devenish, Rce; Edmonds, Jk; Harnew, N; Lancaster, M; Mcfall, Jd; Nath, C; Noyes, Va; Quadt, A; Tickner, Jr; Uijterwaal, H; Walczak, R; Waters, Ds; Yip, T; Bertolin, A; Brugnera, R; Carlin, R; Dalcorso, F; Dosselli, U; Limentani, S; Morandin, M; Posocco, M; Stanco, L; Stroili, R; Voci, C; Bulmahn, J; Feild, Rg; Oh, By; Okrasinski, Jr; Whitmore, Jj; Marini, G; Nigro, A; Hart, Jc; Mccubbin, Na; Shah, Tp; Barberis, E; Dubbs, T; Heusch, C; Vanhook, M; Lockman, W; Rahn, Jt; Sadrozinski, Hfw; Seiden, A; Williams, Dc; Schwarzer, O; Walenta, Ah; Abramowicz, H; Briskin, G; Dagan, S; Doeker, T; Kananov, S; Levy, A; Abe, T; Fleck, Ji; Inuzuka, M; Ishii, T; Kuze, M; Nagano, K; Nakao, M; Suzuki, I; Tokushuku, K; Umemori, K; Yamada, S; Yamazaki, Y; Hamatsu, R; Hirose, T; Homma, K; Kitamura, S; Matsushita, T; Yamauchi, K; Cirio, R; Costa, M; Ferrero, Mi; Maselli, S; Monaco, V; Peroni, C; Petrucci, Mc; Sacchi, R; Solano, A; Staiano, A; Dardo, M; Bailey, Dc; Brkic, M; Fagerstroem, Cp; Hartner, Gf; Joe, Kk; Levman, Gm; Martin, Jf; Orr, Rs; Polenz, S; Sampson, Cr; Simmons, D; Teuscher, Rj; Butterworth, Jm; Catterall, Cd; Jones, Tw; Kaziewicz, Pb; Lane, Jb; Saunders, Rl; Shulman, J; Sutton, Mr; Lu, B; Mo, Lw; Ciborowski, J; Grzelak, G; Kasprzak, M; Muchorowski, K; Nowak, Rj; Pawlak, Jm; Pawlak, R; Tymieniecka, T; Wroblewski, Ak; Zakrzewski, Ja; Adamus, M; Coldewey, C; Eisenberg, Y; Hochman, D; Karshon, U; Revel, D; Badgett, Wf; Chapin, D; Cross, R; Dasu, S; Foudas, C; Loveless, Rj; Mattingly, S; Reeder, Dd; Smith, Wh; Vaiciulis, A; Wodarczyk, M; Bhadra, S; Frisken, Wr; Khakzad, M; Schmidke, Wb; Capua, Marcella; Schioppa, M; Tassi, Enrico. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - 74:2(1997), pp. 207-220. |
Abstract: | Using the ZEUS detector at HERA, we have studied the reaction e(+)p --> e(+)X for Q(2) > 5000 GeV2 with a 20.1 pb(-1) data sample collected during the years 1993 to 1996. For Q(2) below 15000 GeV2, the data are in good agreement with Standard Model expectations. For Q(2) > 35000 GeV2. two events are observed while 0.145 +/- 0.013 events are expected, A statistical analysis of a large ensemble of simulated Standard Model experiments indicates that with probability 6.0%, an excess at least as unlikely as that observed would occur above some Q(2) cut. For x > 0.55 and y > 0.75, four events are observed where 0.91 +/- 0.08 events are expected, A statistical analysis of the two-dimensional distribution of the events in x and y yields a probability of 0.72% for the region x > 0.55 and y > 0.25 and a probability of 7.8% for the entire Q(2) > 5000 GeV2 data sample. The observed excess above Standard Model expectations is particularly interesting because it occurs in a previously unexplored kinematic region. RI Bashkirov, Vladimir/A-4818-2008; De Pasquale, Salvatore/B-9165-2008; Lancaster, Mark/C-1693-2008; Doyle, Anthony/C-5889-2009; Gladilin, Leonid/B-5226-2011; Golubkov, Yury/E-1643-2012 |
Handle: | http://hdl.handle.net/20.500.11770/133117 |
Appare nelle tipologie: | 1.1 Articolo in rivista |