Elastic rho(0) photoproduction has been measured using the ZEUS detector at HERA. Untagged photoproduction events from ep interactions were used to measure the reaction gamma p --> rho(0)P (rho(0) --> pi(+)pi(-)) at photon-proton centre-of-mass energies between 60 and 80 GeV and \t\ < 0.5 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The differential cross section d sigma/dM(pi pi), where M(pi pi) is the invariant mass of the two pions, and the integrated cross section, sigma(gamma p-->rho)o(p), are presented; the latter was measured to be 14.7 +/- 0.4 (stat.) +/- 2.4 (syst.) mu b. The differential cross section d sigma/dt has an approximately exponential shape; a fit of the type A'(t) exp (-b'(t)\t\ + c'(t)t(2)) yields a t-slope b'(t) = 9.9 +/- 1.2 (stat.) +/- 1.4 (syst.) GeV-2. The results, when compared to low energy data, show a weak energy dependence of both sigma(gamma p-->rho)o(P) and of the t-slope. The p(0) is produced predominantly with transverse polarisation, demostrating that s-channel helicity conservation holds at these energies. 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
Elastic rho(0) photoproduction has been measured using the ZEUS detector at HERA. Untagged photoproduction events from ep interactions were used to measure the reaction gamma p --> rho(0)P (rho(0) --> pi(+)pi(-)) at photon-proton centre-of-mass energies between 60 and 80 GeV and \t\ < 0.5 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The differential cross section d sigma/dM(pi pi), where M(pi pi) is the invariant mass of the two pions, and the integrated cross section, sigma(gamma p-->rho)o(p), are presented; the latter was measured to be 14.7 +/- 0.4 (stat.) +/- 2.4 (syst.) mu b. The differential cross section d sigma/dt has an approximately exponential shape; a fit of the type A'(t) exp (-b'(t)\t\ + c'(t)t(2)) yields a t-slope b'(t) = 9.9 +/- 1.2 (stat.) +/- 1.4 (syst.) GeV-2. The results, when compared to low energy data, show a weak energy dependence of both sigma(gamma p-->rho)o(P) and of the t-slope. The p(0) is produced predominantly with transverse polarisation, demostrating that s-channel helicity conservation holds at these energies.
MEASUREMENT OF ELASTIC P(0) PHOTOPRODUCTION AT HERA / Derrick, M; Krakauer, D; Magill, S; Mikunas, D; Musgrave, B; Repond, J; Stanek, R; Talaga, Rl; Zhang, H; Ayad, R; Bari, G; Basile, M; Bellagamba, L; Boscherini, D; Bruni, A; Bruni, G; Bruni, P; Romeo, Gc; Castellini, G; Chiarini, M; Cifarelli, L; Cindolo, F; Contin, A; Corradi, M; Gialas, I; Giusti, P; Iacobucci, G; Laurenti, G; Levi, G; Margotti, A; Massam, T; Nania, R; Nemoz, C; Palmonari, F; Polini, A; Sartorelli, G; Timellini, R; Garcia, Yz; Zichichi, A; Bargende, A; Bornheim, A; Crittenden, J; Desch, K; Diekmann, B; Doeker, T; Eckert, M; Feld, L; Frey, A; Geerts, M; Grothe, M; Hartmann, H; Heinloth, K; Hilger, E; Jakob, Hp; Katz, Uf; Mengel, S; Mollen, J; Paul, E; Pfeiffer, M; Rembser, C; Schramm, D; Stamm, J; Wedemeyer, R; Campbellrobson, S; Cassidy, A; Dyce, N; Foster, B; George, S; Gilmore, R; Heath, Gp; Heath, Hf; Llewellyn, Tj; Morgado, Cjs; Norman, Djp; Omara, Ja; Tapper, Rj; Wilson, Ss; Yoshida, R; Pau, Rr; Arneodo, M; Capua, Marcella; Garfagnini, A; Iannotti, L; Schioppa, M; Susinno, G; Bernstein, A; Caldwell, A; Cartiglia, N; Parsons, Ja; Ritz, S; Sciulli, F; Straub, Pb; Wai, L; Yang, S; Zhu, Q; Borzemski, P; Chwastowski, J; Eskreys, A; Piotrzkowski, K; Zachara, M; Zawiejski, L; Adamczyk, L; Bednarek, B; Jelen, K; Kisielewska, D; Kowalski, T; Rulikowskazarebska, E; Suszycki, L; Zajac, J; Kotanski, A; Przybycien, M; Bauerdick, Lat; Behrens, U; Beier, H; Bienlein, Jk; Coldewey, C; Deppe, O; Desler, K; Drews, G; Flasinski, M; Gilkinson, Dj; Glasman, C; Gottlicher, P; Grosseknetter, J; Gutjahr, B; Haas, T; Hain, W; Hasell, D; Hessling, H; Iga, Y; Johnson, K; Joos, P; Kasemann, M; Klanner, R; Koch, W; Kopke, L; Kotz, U; Kowalski, H; Labs, J; Ladage, A; Lohr, B; Lowe, M; Luke, D; Mainusch, J; Manczak, O; Monteiro, T; Ng, Jst; Nickel, S; Notz, D; Ohrenberg, K; Roco, M; Rohde, M; Roldan, J; Schneekloth, U; Schulz, W; Selonke, F; Stiliaris, E; Surrow, B; Voss, T; Westphal, D; Wolf, G; Youngman, C; Zeuner, W; Zhou, Jf; Grabosch, Hj; Kharchilava, A; Leich, A; Mattingly, Mck; Mari, Sm; Meyer, A; Schlenstedt, S; Wulff, N; Barbagli, G; Pelfer, P; Anzivino, G; Maccarrone, G; Depasquale, S; Votano, L; Bamberger, A; Eisenhardt, S; Freidhof, A; Soldnerrembold, S; Schroeder, J; Trefzger, T; Brook, Nh; Bussey, Pj; Doyle, At; Saxon, Dh; Utley, Ml; Wilson, As; Dannemann, A; Holm, U; Horstmann, D; Neumann, T; Sinkus, R; Wick, K; Badura, E; Burow, Bd; Hagge, L; Lohrmann, E; Milewski, J; Nakahata, M; Pavel, N; Poelz, G; Schott, W; Zetsche, F; Bacon, Tc; Bruemmer, N; Butterworth, I; Gallo, E; Harris, Vl; Hung, Byh; Long, Kr; Miller, Db; Morawitz, Ppo; Prinias, A; Sedgbeer, Jk; Whitfield, Af; Mallik, U; Mccliment, E; Wang, Mz; Wang, Sm; Wu, Jt; Cloth, P; Filges, D; An, Sh; Hong, Sm; Nam, Sw; Park, Sk; Suh, Mh; Yon, Sh; Imlay, R; Kartik, S; Kim, Hj; Mcneil, Rr; Metcalf, W; Nadendla, Vk; Barreiro, F; Cases, G; Fernandez, Jp; Graciani, R; Hernandez, Jm; Hervas, L; Labarga, L; Martinez, M; Delpeso, J; Puga, J; Terron, J; Detroconiz, Jf; Smith, Gr; Corriveau, F; Hanna, Ds; Hartmann, J; Hung, Lw; Lim, Jn; Matthews, Cg; Patel, Pm; Sinclair, Le; Stairs, Dg; Laurent, Ms; Ullnann, R; Zacek, G; Bashkirov, V; Dolgoshein, Ba; Stifulkin, A; Bashindzhagyan, Gl; Ermolov, Pf; Gladilin, Lk; Golubkov, Ya; Kobrin, Vd; Korzhavina, Ia; Kuzmin, Va; Lukina, Oy; Proskuryakov, As; Savin, Aa; Shcheglova, Lm; Solomin, An; Zotov, Np; Botje, M; Chlebana, F; Dake, A; Engelen, J; Dekamps, M; Kooijman, P; Kruse, A; Tiecke, H; Verkerke, W; Vreeswijk, M; Wiggers, L; Dewolf, E; Vanwoudenberg, R; Acosta, D; Bylsma, B; Durkin, Ls; Gilmore, J; Honscheid, K; Li, C; Ling, Ty; Mclean, Kw; Murray, Wn; Nylander, P; Park, Ih; Romanowski, Ta; Seidlein, R; Bailey, Ds; Byrne, A; Cashmere, Rj; Coopersarkar, Am; Devenish, Rce; Harnew, N; Lancaster, M; Lindemann, L; Mcfall, Jd; Nath, C; Noyes, Va; Quadt, A; Tickner, Jr; Uijterwaal, H; Walczak, R; Waters, Ds; Wilson, Ff; Yip, T; Abbiendi, G; Bertolin, A; Brugnera, R; Carlin, R; Dalcorso, F; Degiorgi, M; Dosselli, U; Limentani, S; Morandin, M; Posocco, M; Stanco, L; Stroili, R; Voci, C; Bulmahn, J; Butterworth, Jm; Feild, Rg; Oh, By; Whitmore, Jj; Dagostini, G; Marini, G; Nigro, A; Tassi, Enrico; Hart, Jc; Mccubbin, Na; Prytz, K; Shah, Tp; Short, Tl; Barberis, E; Dubbs, T; Heusch, C; Vanhook, M; Lockman, W; Rahn, Jt; Sadrozinski, Hfw; Seiden, A; Williams, Dc; Biltzinger, J; Seifert, Rj; Schwarzer, O; Walenta, Ah; Zech, G; Abramowicz, H; Briskin, G; Dagan, S; Levy, A; Fleck, Ji; Hasegawa, T; Hazumi, M; Ishii, T; Kuze, M; Mine, S; Nagasawa, Y; Nakao, M; Suzuki, I; Tokushuku, K; Yamada, S; Yamazaki, Y; Chiba, M; Hamatsu, R; Hirose, T; Homma, K; Kitamura, S; Nakamitsu, Y; Yamauchi, K; Cirio, R; Costa, M; Ferrero, Mi; Lamberti, L; Maselli, S; Peroni, C; Sacchi, R; Solano, A; Staiano, A; Dardo, M; Bailey, Dc; Bandyopadhyay, D; Benard, F; Brkic, M; Gingrich, Dm; Hartner, Gf; Joe, Kk; Levman, Gm; Martin, Jf; Orr, Rs; Polenz, S; Sampson, Cr; Teuscher, Rj; Catterall, Cd; Jones, Tw; Kaziewicz, Pb; Lane, Jb; Saunders, Rl; Shulman, J; Blankenship, K; Lu, B; Mo, Lw; Bogusz, W; Charchula, K; Ciborowski, J; Gajewski, J; Grzelak, G; Kasprzak, M; Krzyzanowski, M; Muchorowski, K; Nowak, Rj; Pawlak, Jm; Smieniecka, T; Wroblewski, Ak; Zakrzewski, Ja; Zarnecki, Af; Adamus, M; Eisenberg, Y; Karshon, U; Revel, D; Zerzion, D; Ali, I; Badgett, Wf; Behrens, B; Dasu, S; Fordham, C; Foudas, C; Goussiou, A; Loveless, Rj; Reeder, Dd; Silverstein, S; Smith, Wh; Vaiciulis, A; Wodarczyk, M; Tsurugai, T; Bhadra, S; Cardy, Ml; Fagerstroem, Cp; Frisken, Wr; Furutani, Km; Khakzad, M; Schmidke, Wb. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - 69:1(1995), pp. 39-54.
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Titolo: | MEASUREMENT OF ELASTIC P(0) PHOTOPRODUCTION AT HERA |
Autori: | |
Data di pubblicazione: | 1995 |
Rivista: | |
Citazione: | MEASUREMENT OF ELASTIC P(0) PHOTOPRODUCTION AT HERA / Derrick, M; Krakauer, D; Magill, S; Mikunas, D; Musgrave, B; Repond, J; Stanek, R; Talaga, Rl; Zhang, H; Ayad, R; Bari, G; Basile, M; Bellagamba, L; Boscherini, D; Bruni, A; Bruni, G; Bruni, P; Romeo, Gc; Castellini, G; Chiarini, M; Cifarelli, L; Cindolo, F; Contin, A; Corradi, M; Gialas, I; Giusti, P; Iacobucci, G; Laurenti, G; Levi, G; Margotti, A; Massam, T; Nania, R; Nemoz, C; Palmonari, F; Polini, A; Sartorelli, G; Timellini, R; Garcia, Yz; Zichichi, A; Bargende, A; Bornheim, A; Crittenden, J; Desch, K; Diekmann, B; Doeker, T; Eckert, M; Feld, L; Frey, A; Geerts, M; Grothe, M; Hartmann, H; Heinloth, K; Hilger, E; Jakob, Hp; Katz, Uf; Mengel, S; Mollen, J; Paul, E; Pfeiffer, M; Rembser, C; Schramm, D; Stamm, J; Wedemeyer, R; Campbellrobson, S; Cassidy, A; Dyce, N; Foster, B; George, S; Gilmore, R; Heath, Gp; Heath, Hf; Llewellyn, Tj; Morgado, Cjs; Norman, Djp; Omara, Ja; Tapper, Rj; Wilson, Ss; Yoshida, R; Pau, Rr; Arneodo, M; Capua, Marcella; Garfagnini, A; Iannotti, L; Schioppa, M; Susinno, G; Bernstein, A; Caldwell, A; Cartiglia, N; Parsons, Ja; Ritz, S; Sciulli, F; Straub, Pb; Wai, L; Yang, S; Zhu, Q; Borzemski, P; Chwastowski, J; Eskreys, A; Piotrzkowski, K; Zachara, M; Zawiejski, L; Adamczyk, L; Bednarek, B; Jelen, K; Kisielewska, D; Kowalski, T; Rulikowskazarebska, E; Suszycki, L; Zajac, J; Kotanski, A; Przybycien, M; Bauerdick, Lat; Behrens, U; Beier, H; Bienlein, Jk; Coldewey, C; Deppe, O; Desler, K; Drews, G; Flasinski, M; Gilkinson, Dj; Glasman, C; Gottlicher, P; Grosseknetter, J; Gutjahr, B; Haas, T; Hain, W; Hasell, D; Hessling, H; Iga, Y; Johnson, K; Joos, P; Kasemann, M; Klanner, R; Koch, W; Kopke, L; Kotz, U; Kowalski, H; Labs, J; Ladage, A; Lohr, B; Lowe, M; Luke, D; Mainusch, J; Manczak, O; Monteiro, T; Ng, Jst; Nickel, S; Notz, D; Ohrenberg, K; Roco, M; Rohde, M; Roldan, J; Schneekloth, U; Schulz, W; Selonke, F; Stiliaris, E; Surrow, B; Voss, T; Westphal, D; Wolf, G; Youngman, C; Zeuner, W; Zhou, Jf; Grabosch, Hj; Kharchilava, A; Leich, A; Mattingly, Mck; Mari, Sm; Meyer, A; Schlenstedt, S; Wulff, N; Barbagli, G; Pelfer, P; Anzivino, G; Maccarrone, G; Depasquale, S; Votano, L; Bamberger, A; Eisenhardt, S; Freidhof, A; Soldnerrembold, S; Schroeder, J; Trefzger, T; Brook, Nh; Bussey, Pj; Doyle, At; Saxon, Dh; Utley, Ml; Wilson, As; Dannemann, A; Holm, U; Horstmann, D; Neumann, T; Sinkus, R; Wick, K; Badura, E; Burow, Bd; Hagge, L; Lohrmann, E; Milewski, J; Nakahata, M; Pavel, N; Poelz, G; Schott, W; Zetsche, F; Bacon, Tc; Bruemmer, N; Butterworth, I; Gallo, E; Harris, Vl; Hung, Byh; Long, Kr; Miller, Db; Morawitz, Ppo; Prinias, A; Sedgbeer, Jk; Whitfield, Af; Mallik, U; Mccliment, E; Wang, Mz; Wang, Sm; Wu, Jt; Cloth, P; Filges, D; An, Sh; Hong, Sm; Nam, Sw; Park, Sk; Suh, Mh; Yon, Sh; Imlay, R; Kartik, S; Kim, Hj; Mcneil, Rr; Metcalf, W; Nadendla, Vk; Barreiro, F; Cases, G; Fernandez, Jp; Graciani, R; Hernandez, Jm; Hervas, L; Labarga, L; Martinez, M; Delpeso, J; Puga, J; Terron, J; Detroconiz, Jf; Smith, Gr; Corriveau, F; Hanna, Ds; Hartmann, J; Hung, Lw; Lim, Jn; Matthews, Cg; Patel, Pm; Sinclair, Le; Stairs, Dg; Laurent, Ms; Ullnann, R; Zacek, G; Bashkirov, V; Dolgoshein, Ba; Stifulkin, A; Bashindzhagyan, Gl; Ermolov, Pf; Gladilin, Lk; Golubkov, Ya; Kobrin, Vd; Korzhavina, Ia; Kuzmin, Va; Lukina, Oy; Proskuryakov, As; Savin, Aa; Shcheglova, Lm; Solomin, An; Zotov, Np; Botje, M; Chlebana, F; Dake, A; Engelen, J; Dekamps, M; Kooijman, P; Kruse, A; Tiecke, H; Verkerke, W; Vreeswijk, M; Wiggers, L; Dewolf, E; Vanwoudenberg, R; Acosta, D; Bylsma, B; Durkin, Ls; Gilmore, J; Honscheid, K; Li, C; Ling, Ty; Mclean, Kw; Murray, Wn; Nylander, P; Park, Ih; Romanowski, Ta; Seidlein, R; Bailey, Ds; Byrne, A; Cashmere, Rj; Coopersarkar, Am; Devenish, Rce; Harnew, N; Lancaster, M; Lindemann, L; Mcfall, Jd; Nath, C; Noyes, Va; Quadt, A; Tickner, Jr; Uijterwaal, H; Walczak, R; Waters, Ds; Wilson, Ff; Yip, T; Abbiendi, G; Bertolin, A; Brugnera, R; Carlin, R; Dalcorso, F; Degiorgi, M; Dosselli, U; Limentani, S; Morandin, M; Posocco, M; Stanco, L; Stroili, R; Voci, C; Bulmahn, J; Butterworth, Jm; Feild, Rg; Oh, By; Whitmore, Jj; Dagostini, G; Marini, G; Nigro, A; Tassi, Enrico; Hart, Jc; Mccubbin, Na; Prytz, K; Shah, Tp; Short, Tl; Barberis, E; Dubbs, T; Heusch, C; Vanhook, M; Lockman, W; Rahn, Jt; Sadrozinski, Hfw; Seiden, A; Williams, Dc; Biltzinger, J; Seifert, Rj; Schwarzer, O; Walenta, Ah; Zech, G; Abramowicz, H; Briskin, G; Dagan, S; Levy, A; Fleck, Ji; Hasegawa, T; Hazumi, M; Ishii, T; Kuze, M; Mine, S; Nagasawa, Y; Nakao, M; Suzuki, I; Tokushuku, K; Yamada, S; Yamazaki, Y; Chiba, M; Hamatsu, R; Hirose, T; Homma, K; Kitamura, S; Nakamitsu, Y; Yamauchi, K; Cirio, R; Costa, M; Ferrero, Mi; Lamberti, L; Maselli, S; Peroni, C; Sacchi, R; Solano, A; Staiano, A; Dardo, M; Bailey, Dc; Bandyopadhyay, D; Benard, F; Brkic, M; Gingrich, Dm; Hartner, Gf; Joe, Kk; Levman, Gm; Martin, Jf; Orr, Rs; Polenz, S; Sampson, Cr; Teuscher, Rj; Catterall, Cd; Jones, Tw; Kaziewicz, Pb; Lane, Jb; Saunders, Rl; Shulman, J; Blankenship, K; Lu, B; Mo, Lw; Bogusz, W; Charchula, K; Ciborowski, J; Gajewski, J; Grzelak, G; Kasprzak, M; Krzyzanowski, M; Muchorowski, K; Nowak, Rj; Pawlak, Jm; Smieniecka, T; Wroblewski, Ak; Zakrzewski, Ja; Zarnecki, Af; Adamus, M; Eisenberg, Y; Karshon, U; Revel, D; Zerzion, D; Ali, I; Badgett, Wf; Behrens, B; Dasu, S; Fordham, C; Foudas, C; Goussiou, A; Loveless, Rj; Reeder, Dd; Silverstein, S; Smith, Wh; Vaiciulis, A; Wodarczyk, M; Tsurugai, T; Bhadra, S; Cardy, Ml; Fagerstroem, Cp; Frisken, Wr; Furutani, Km; Khakzad, M; Schmidke, Wb. - In: ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS. - ISSN 0170-9739. - 69:1(1995), pp. 39-54. |
Abstract: | Elastic rho(0) photoproduction has been measured using the ZEUS detector at HERA. Untagged photoproduction events from ep interactions were used to measure the reaction gamma p --> rho(0)P (rho(0) --> pi(+)pi(-)) at photon-proton centre-of-mass energies between 60 and 80 GeV and \t\ < 0.5 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The differential cross section d sigma/dM(pi pi), where M(pi pi) is the invariant mass of the two pions, and the integrated cross section, sigma(gamma p-->rho)o(p), are presented; the latter was measured to be 14.7 +/- 0.4 (stat.) +/- 2.4 (syst.) mu b. The differential cross section d sigma/dt has an approximately exponential shape; a fit of the type A'(t) exp (-b'(t)\t\ + c'(t)t(2)) yields a t-slope b'(t) = 9.9 +/- 1.2 (stat.) +/- 1.4 (syst.) GeV-2. The results, when compared to low energy data, show a weak energy dependence of both sigma(gamma p-->rho)o(P) and of the t-slope. The p(0) is produced predominantly with transverse polarisation, demostrating that s-channel helicity conservation holds at these energies. 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/20.500.11770/145193 |
Appare nelle tipologie: | 1.1 Articolo in rivista |