Measurement of the proton structure function F-2 at very low Q(2) at HERA

Breitweg, J , Chekanov, S , Derrick, M , Krakauer, D , Magill, S , Musgrave, B , Pellegrino, A , Repond, J , Stanek, R , Yoshida, R , Mattingly, M C K , Abbiendi, G , Anselmo, F , Antonioli, P , Bari, G , Basile, M , Bellagamba, L , Boscherini, D , Bruni, A , Bruni, G , Romeo, G C , Castellini, G , Cifarelli, L , Cindolo, F , Contin, A , Coppola, N , Corradi, M , De Pasquale, S , Giusti, P , Iacobucci, G , Laurenti, G , Levi, G , Margotti, A , Massam, T , Nania, R , Palmonari, F , Pesci, A , Polini, A , Sartorelli, G , Garcia, Y Z , Zichichi, A , Amelung, C , Bornheim, A , Brock, I , Coboken, K , Crittenden, J , Deffner, R , Hartmann, H , Heinloth, K , Hilger, E , Irrgang, P , Jakob, H P , Kappes, A , Katz, U F , Kerger, R , Paul, E , Schnurbusch, H , Stifutkin, A , Tandler, J , Voss, K C , Weber, A , Wieber, H , Bailey, D S , Barret, O , Brook, N H , Foster, B , Heath, G P , Heath, H F , McFall, J D , Piccioni, D , Rodrigues, E , Scott, J , Tapper, R J , Capua, M , Mastroberardino, A , Schioppa, M , Susinno, G , Jeoung, H Y , Kim, J Y , Lee, J H , Lim, I T , Ma, K J , Pac, M Y , Caldwell, A , Liu, W , Liu, X , Mellado, B , Paganis, S , Sampson, S , Schmidke, W B , Sciulli, F , Chwastowski, J , Eskreys, A , Figiel, J , Klimek, K , Olkiewicz, K , Piotrzkowski, K , Przybycien, M B , Stopa, P , Zawiejski, L , Bednarek, B , Jelen, K , Kisielewska, D , Kowal, A M , Kowalski, T , Przybycien, M , Rulikowska-Zarebska, E , Suszycki, L , Szuba, D , Kotanski, A , Bauerdick, L A T , Behrens, U , Bienlein, J K , Burgard, C , Dannheim, D , Desler, K , Drews, G , Fox-Murphy, A , Fricke, U , Goebel, F , Gottlicher, P , Graciani, R , Haas, T , Hain, W , Hartner, G F , Hasell, D , Hebbel, K , Johnson, K F , Kasemann, M , Koch, W , Kotz, U , Kowalski, H , Lindemann, L , Lohr, B , Martinez, M , Milite, M , Monteiro, T , Moritz, M , Notz, D , Pelucchi, F , Petrucci, M C , Rohde, M , Saull, P R B , Savin, A A , Schneekloth, U , Selonke, F , Sievers, M , Stonjek, S , Tassi, E , Wolf, G , Wollmer, U , Youngman, C , Zeuner, W , Coldewey, C , Viani, A L D , Meyer, A , Schlenstedt, S , Straub, P B , Barbagli, G , Gallo, E , Pelfer, P , Maccarrone, G , Votano, L , Bamberger, A , Benen, A , Eisenhardt, S , Markun, P , Raach, H , Wolfle, S , Bussey, P J , Bell, M , Doyle, A T , Lee, S W , Lupi, A , Macdonald, N , McCance, G J , Saxon, D H , Sinclair, L E , Skillicorn, I O , Waugh, R , Bohnet, I , Gendner, N , Holm, U , Meyer-Larsen, A , Salehi, H , Wick, K , Garfagnini, A , Gialas, I , Gladilin, L K , Kcira, D , Klanner, R , Lohrmann, E , Poelz, G , Zetsche, F , Goncalo, R , Long, K R , Miller, D B , Tapper, A D , Walker, R , Mallik, U , Cloth, P , Filges, D , Ishii, T , Kuze, M , Nagano, K , Tokushuku, K , Yamada, S , Yamazaki, Y , Ahn, S H , Lee, S B , Park, S K , Lim, H , Park, I H , Son, D , Barreiro, F , Garcia, G , Glasman, C , Gonzalez, O , Labarga, L , del Peso, J , Redondo, I , Terron, J , Barbi, M , Corriveau, F , Hanna, D S , Ochs, A , Padhi, S , Riveline, M , Stairs, D G , Wing, M , Tsurugai, T , Antonov, A , Bashkirov, V , Danilov, M , Dolgoshein, B A , Gladkov, D , Sosnovtsev, V , Suchkov, S , Dementiev, R K , Ermolov, P F , Golubkov, Y A , Katkov, I I , Khein, L A , Korotkova, N A , Korzhavina, I A , Kuzmin, V A , Lukina, O Y , Proskuryakov, A S , Shcheglova, L M , Solomin, A N , Vlasov, N N , Zotkin, S A , Bokel, C , Botje, M , Brummer, N , Engelen, J , Grijpink, S , Koffeman, E , Kooijman, P , Schagen, S , van Sighem, A , Tiecke, H , Tuning, N , Velthuis, J J , Vossebeld, J , Wiggers, L , de Wolf, E , Acosta, D , Bylsma, B , Durkin, L S , Gilmore, J , Ginsburg, C M , Kim, C L , Ling, T Y , Boogert, S , Cooper-Sarkar, A M , Devenish, R C E , Grosse-Knetter, J , Matsushita, T , Quadt, A , Ruske, O , Sutton, M R , Walczak, R , Bertolin, A , Brugnera, R , Carlin, R , Dal Corso, F , Dosselli, U , Dusini, S , Limentani, S , Morandin, M , Posocco, M , Stanco, L , Stroili, R , Turcato, M , Voci, C , Adamczyk, L , Iannotti, L , Oh, B Y , Okrasinski, J R , Toothacker, W S , Whitmore, J J , Iga, Y , D'Agostini, G , Marini, G , Nigro, A , Cormack, C , Hart, J C , McCubbin, N A , Shah, T P , Epperson, D , Heusch, C , Sadrozinski, H F W , Seiden, A , Wichmann, R , Williams, D C , Pavel, N , Abramowicz, H , Dagan, S , Kananov, S , Kreisel, A , Levy, A , Abe, T , Fusayasu, T , Umemori, K , Yamashita, T , Hamatsu, R , Hirose, T , Inuzuka, M , Kitamura, S , Nishimura, T , Arneodo, M , Cartiglia, N , Cirio, R , Costa, M , Ferrero, M I , Maselli, S , Monaco, V , Peroni, C , Ruspa, M , Sacchi, R , Solano, A , Staiano, A , Dardo, M , Bailey, D C , Fagerstroem, C P , Galea, R , Koop, T , Levman, G M , Martin, J F , Orr, R S , Polenz, S , Sabetfakhri, A , Simmons, D , Butterworth, J M , Catterall, C D , Hayes, M E , Heaphy, E A , Jones, T W , Lane, J B , West, B J , Ciborowski, J , Ciesielski, R , Grzelak, G , Nowak, R J , Pawlak, J M , Pawlak, R , Smalska, B , Tymieniecka, T , Wroblewski, A K , Zakrzewski, J A , Zarnecki, A F , Adamus, M , Gadaj, T , Deppe, O , Eisenberg, Y , Hochman, D , Karshon, U , Badgett, W F , Chapin, D , Cross, R , Foudas, C , Mattingly, S , Reeder, D D , Smith, W H , Vaiciulis, A , Wildschek, T , Wodarczyk, M , Deshpande, A , Dhawan, S , Hughes, V W , Bhadra, S , Catterall, C , Cole, J E , Frisken, W R , Hall-Wilton, R , Khakzad, M , Menary, S and , ZEUS Collaboration

(2000)

Breitweg, J , Chekanov, S , Derrick, M , Krakauer, D , Magill, S , Musgrave, B , Pellegrino, A , Repond, J , Stanek, R , Yoshida, R , Mattingly, M C K , Abbiendi, G , Anselmo, F , Antonioli, P , Bari, G , Basile, M , Bellagamba, L , Boscherini, D , Bruni, A , Bruni, G , Romeo, G C , Castellini, G , Cifarelli, L , Cindolo, F , Contin, A , Coppola, N , Corradi, M , De Pasquale, S , Giusti, P , Iacobucci, G , Laurenti, G , Levi, G , Margotti, A , Massam, T , Nania, R , Palmonari, F , Pesci, A , Polini, A , Sartorelli, G , Garcia, Y Z , Zichichi, A , Amelung, C , Bornheim, A , Brock, I , Coboken, K , Crittenden, J , Deffner, R , Hartmann, H , Heinloth, K , Hilger, E , Irrgang, P , Jakob, H P , Kappes, A , Katz, U F , Kerger, R , Paul, E , Schnurbusch, H , Stifutkin, A , Tandler, J , Voss, K C , Weber, A , Wieber, H , Bailey, D S , Barret, O , Brook, N H , Foster, B , Heath, G P , Heath, H F , McFall, J D , Piccioni, D , Rodrigues, E , Scott, J , Tapper, R J , Capua, M , Mastroberardino, A , Schioppa, M , Susinno, G , Jeoung, H Y , Kim, J Y , Lee, J H , Lim, I T , Ma, K J , Pac, M Y , Caldwell, A , Liu, W , Liu, X , Mellado, B , Paganis, S , Sampson, S , Schmidke, W B , Sciulli, F , Chwastowski, J , Eskreys, A , Figiel, J , Klimek, K , Olkiewicz, K , Piotrzkowski, K , Przybycien, M B , Stopa, P , Zawiejski, L , Bednarek, B , Jelen, K , Kisielewska, D , Kowal, A M , Kowalski, T , Przybycien, M , Rulikowska-Zarebska, E , Suszycki, L , Szuba, D , Kotanski, A , Bauerdick, L A T , Behrens, U , Bienlein, J K , Burgard, C , Dannheim, D , Desler, K , Drews, G , Fox-Murphy, A , Fricke, U , Goebel, F , Gottlicher, P , Graciani, R , Haas, T , Hain, W , Hartner, G F , Hasell, D , Hebbel, K , Johnson, K F , Kasemann, M , Koch, W , Kotz, U , Kowalski, H , Lindemann, L , Lohr, B , Martinez, M , Milite, M , Monteiro, T , Moritz, M , Notz, D , Pelucchi, F , Petrucci, M C , Rohde, M , Saull, P R B , Savin, A A , Schneekloth, U , Selonke, F , Sievers, M , Stonjek, S , Tassi, E , Wolf, G , Wollmer, U , Youngman, C , Zeuner, W , Coldewey, C , Viani, A L D , Meyer, A , Schlenstedt, S , Straub, P B , Barbagli, G , Gallo, E , Pelfer, P , Maccarrone, G , Votano, L , Bamberger, A , Benen, A , Eisenhardt, S , Markun, P , Raach, H , Wolfle, S , Bussey, P J , Bell, M , Doyle, A T , Lee, S W , Lupi, A , Macdonald, N , McCance, G J , Saxon, D H , Sinclair, L E , Skillicorn, I O , Waugh, R , Bohnet, I , Gendner, N , Holm, U , Meyer-Larsen, A , Salehi, H , Wick, K , Garfagnini, A , Gialas, I , Gladilin, L K , Kcira, D , Klanner, R , Lohrmann, E , Poelz, G , Zetsche, F , Goncalo, R , Long, K R , Miller, D B , Tapper, A D , Walker, R , Mallik, U , Cloth, P , Filges, D , Ishii, T , Kuze, M , Nagano, K , Tokushuku, K , Yamada, S , Yamazaki, Y , Ahn, S H , Lee, S B , Park, S K , Lim, H , Park, I H , Son, D , Barreiro, F , Garcia, G , Glasman, C , Gonzalez, O , Labarga, L , del Peso, J , Redondo, I , Terron, J , Barbi, M , Corriveau, F , Hanna, D S , Ochs, A , Padhi, S , Riveline, M , Stairs, D G , Wing, M , Tsurugai, T , Antonov, A , Bashkirov, V , Danilov, M , Dolgoshein, B A , Gladkov, D , Sosnovtsev, V , Suchkov, S , Dementiev, R K , Ermolov, P F , Golubkov, Y A , Katkov, I I , Khein, L A , Korotkova, N A , Korzhavina, I A , Kuzmin, V A , Lukina, O Y , Proskuryakov, A S , Shcheglova, L M , Solomin, A N , Vlasov, N N , Zotkin, S A , Bokel, C , Botje, M , Brummer, N , Engelen, J , Grijpink, S , Koffeman, E , Kooijman, P , Schagen, S , van Sighem, A , Tiecke, H , Tuning, N , Velthuis, J J , Vossebeld, J , Wiggers, L , de Wolf, E , Acosta, D , Bylsma, B , Durkin, L S , Gilmore, J , Ginsburg, C M , Kim, C L , Ling, T Y , Boogert, S , Cooper-Sarkar, A M , Devenish, R C E , Grosse-Knetter, J , Matsushita, T , Quadt, A , Ruske, O , Sutton, M R , Walczak, R , Bertolin, A , Brugnera, R , Carlin, R , Dal Corso, F , Dosselli, U , Dusini, S , Limentani, S , Morandin, M , Posocco, M , Stanco, L , Stroili, R , Turcato, M , Voci, C , Adamczyk, L , Iannotti, L , Oh, B Y , Okrasinski, J R , Toothacker, W S , Whitmore, J J , Iga, Y , D'Agostini, G , Marini, G , Nigro, A , Cormack, C , Hart, J C , McCubbin, N A , Shah, T P , Epperson, D , Heusch, C , Sadrozinski, H F W , Seiden, A , Wichmann, R , Williams, D C , Pavel, N , Abramowicz, H , Dagan, S , Kananov, S , Kreisel, A , Levy, A , Abe, T , Fusayasu, T , Umemori, K , Yamashita, T , Hamatsu, R , Hirose, T , Inuzuka, M , Kitamura, S , Nishimura, T , Arneodo, M , Cartiglia, N , Cirio, R , Costa, M , Ferrero, M I , Maselli, S , Monaco, V , Peroni, C , Ruspa, M , Sacchi, R , Solano, A , Staiano, A , Dardo, M , Bailey, D C , Fagerstroem, C P , Galea, R , Koop, T , Levman, G M , Martin, J F , Orr, R S , Polenz, S , Sabetfakhri, A , Simmons, D , Butterworth, J M , Catterall, C D , Hayes, M E , Heaphy, E A , Jones, T W , Lane, J B , West, B J , Ciborowski, J , Ciesielski, R , Grzelak, G , Nowak, R J , Pawlak, J M , Pawlak, R , Smalska, B , Tymieniecka, T , Wroblewski, A K , Zakrzewski, J A , Zarnecki, A F , Adamus, M , Gadaj, T , Deppe, O , Eisenberg, Y , Hochman, D , Karshon, U , Badgett, W F , Chapin, D , Cross, R , Foudas, C , Mattingly, S , Reeder, D D , Smith, W H , Vaiciulis, A , Wildschek, T , Wodarczyk, M , Deshpande, A , Dhawan, S , Hughes, V W , Bhadra, S , Catterall, C , Cole, J E , Frisken, W R , Hall-Wilton, R , Khakzad, M , Menary, S and , ZEUS Collaboration (2000) Measurement of the proton structure function F-2 at very low Q(2) at HERA. Physics Letters B, 487 (1-2).

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Abstract

A measurement of the proton structure function F-2(x, Q(2)) is presented in the kinematic range 0.045 GeV2 < Q(2) < 0.65 GeV2 and 6 . 10(-7) < x < 1 . 10(-3). The results were obtained using a data sample corresponding to an integrated luminosity of 3.9 pb(-1) in e(+)p reactions recorded with the ZEUS detector at HERA. Information from a silicon-strip tracking detector, installed in front of the small electromagnetic calorimeter used to measure the energy of the final-state positron at small scattering angles, together with an enhanced simulation of the hadronic final state, has permitted the extension of the kinematic range beyond that of previous measurements. The uncertainties in F-2 are typically less than 4%. At the low Q(2) values of the present measurement, the rise of F-2 at low x is slower than observed in HERA data at higher Q(2) and can be described by Regge theory with a constant logarithmic slope partial derivative lnF(2)/partial derivative ln(1/x). The dependence of F-2 on Q(2) is stronger than at higher Q(2) values, approaching, at the lowest Q(2) values of this measurement, a region where F-2 becomes nearly proportional to Q(2). (C) 2000 Elsevier Science B.V. All rights reserved.

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This is a Submitted version
This version's date is: 10/8/2000
This item is not peer reviewed

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https://repository.royalholloway.ac.uk/items/97374ebb-8770-a0b8-1dae-95a155e83d83/6/

Item TypeJournal Article
TitleMeasurement of the proton structure function F-2 at very low Q(2) at HERA
AuthorsBreitweg, J
Chekanov, S
Derrick, M
Krakauer, D
Magill, S
Musgrave, B
Pellegrino, A
Repond, J
Stanek, R
Yoshida, R
Mattingly, M C K
Abbiendi, G
Anselmo, F
Antonioli, P
Bari, G
Basile, M
Bellagamba, L
Boscherini, D
Bruni, A
Bruni, G
Romeo, G C
Castellini, G
Cifarelli, L
Cindolo, F
Contin, A
Coppola, N
Corradi, M
De Pasquale, S
Giusti, P
Iacobucci, G
Laurenti, G
Levi, G
Margotti, A
Massam, T
Nania, R
Palmonari, F
Pesci, A
Polini, A
Sartorelli, G
Garcia, Y Z
Zichichi, A
Amelung, C
Bornheim, A
Brock, I
Coboken, K
Crittenden, J
Deffner, R
Hartmann, H
Heinloth, K
Hilger, E
Irrgang, P
Jakob, H P
Kappes, A
Katz, U F
Kerger, R
Paul, E
Schnurbusch, H
Stifutkin, A
Tandler, J
Voss, K C
Weber, A
Wieber, H
Bailey, D S
Barret, O
Brook, N H
Foster, B
Heath, G P
Heath, H F
McFall, J D
Piccioni, D
Rodrigues, E
Scott, J
Tapper, R J
Capua, M
Mastroberardino, A
Schioppa, M
Susinno, G
Jeoung, H Y
Kim, J Y
Lee, J H
Lim, I T
Ma, K J
Pac, M Y
Caldwell, A
Liu, W
Liu, X
Mellado, B
Paganis, S
Sampson, S
Schmidke, W B
Sciulli, F
Chwastowski, J
Eskreys, A
Figiel, J
Klimek, K
Olkiewicz, K
Piotrzkowski, K
Przybycien, M B
Stopa, P
Zawiejski, L
Bednarek, B
Jelen, K
Kisielewska, D
Kowal, A M
Kowalski, T
Przybycien, M
Rulikowska-Zarebska, E
Suszycki, L
Szuba, D
Kotanski, A
Bauerdick, L A T
Behrens, U
Bienlein, J K
Burgard, C
Dannheim, D
Desler, K
Drews, G
Fox-Murphy, A
Fricke, U
Goebel, F
Gottlicher, P
Graciani, R
Haas, T
Hain, W
Hartner, G F
Hasell, D
Hebbel, K
Johnson, K F
Kasemann, M
Koch, W
Kotz, U
Kowalski, H
Lindemann, L
Lohr, B
Martinez, M
Milite, M
Monteiro, T
Moritz, M
Notz, D
Pelucchi, F
Petrucci, M C
Rohde, M
Saull, P R B
Savin, A A
Schneekloth, U
Selonke, F
Sievers, M
Stonjek, S
Tassi, E
Wolf, G
Wollmer, U
Youngman, C
Zeuner, W
Coldewey, C
Viani, A L D
Meyer, A
Schlenstedt, S
Straub, P B
Barbagli, G
Gallo, E
Pelfer, P
Maccarrone, G
Votano, L
Bamberger, A
Benen, A
Eisenhardt, S
Markun, P
Raach, H
Wolfle, S
Bussey, P J
Bell, M
Doyle, A T
Lee, S W
Lupi, A
Macdonald, N
McCance, G J
Saxon, D H
Sinclair, L E
Skillicorn, I O
Waugh, R
Bohnet, I
Gendner, N
Holm, U
Meyer-Larsen, A
Salehi, H
Wick, K
Garfagnini, A
Gialas, I
Gladilin, L K
Kcira, D
Klanner, R
Lohrmann, E
Poelz, G
Zetsche, F
Goncalo, R
Long, K R
Miller, D B
Tapper, A D
Walker, R
Mallik, U
Cloth, P
Filges, D
Ishii, T
Kuze, M
Nagano, K
Tokushuku, K
Yamada, S
Yamazaki, Y
Ahn, S H
Lee, S B
Park, S K
Lim, H
Park, I H
Son, D
Barreiro, F
Garcia, G
Glasman, C
Gonzalez, O
Labarga, L
del Peso, J
Redondo, I
Terron, J
Barbi, M
Corriveau, F
Hanna, D S
Ochs, A
Padhi, S
Riveline, M
Stairs, D G
Wing, M
Tsurugai, T
Antonov, A
Bashkirov, V
Danilov, M
Dolgoshein, B A
Gladkov, D
Sosnovtsev, V
Suchkov, S
Dementiev, R K
Ermolov, P F
Golubkov, Y A
Katkov, I I
Khein, L A
Korotkova, N A
Korzhavina, I A
Kuzmin, V A
Lukina, O Y
Proskuryakov, A S
Shcheglova, L M
Solomin, A N
Vlasov, N N
Zotkin, S A
Bokel, C
Botje, M
Brummer, N
Engelen, J
Grijpink, S
Koffeman, E
Kooijman, P
Schagen, S
van Sighem, A
Tiecke, H
Tuning, N
Velthuis, J J
Vossebeld, J
Wiggers, L
de Wolf, E
Acosta, D
Bylsma, B
Durkin, L S
Gilmore, J
Ginsburg, C M
Kim, C L
Ling, T Y
Boogert, S
Cooper-Sarkar, A M
Devenish, R C E
Grosse-Knetter, J
Matsushita, T
Quadt, A
Ruske, O
Sutton, M R
Walczak, R
Bertolin, A
Brugnera, R
Carlin, R
Dal Corso, F
Dosselli, U
Dusini, S
Limentani, S
Morandin, M
Posocco, M
Stanco, L
Stroili, R
Turcato, M
Voci, C
Adamczyk, L
Iannotti, L
Oh, B Y
Okrasinski, J R
Toothacker, W S
Whitmore, J J
Iga, Y
D'Agostini, G
Marini, G
Nigro, A
Cormack, C
Hart, J C
McCubbin, N A
Shah, T P
Epperson, D
Heusch, C
Sadrozinski, H F W
Seiden, A
Wichmann, R
Williams, D C
Pavel, N
Abramowicz, H
Dagan, S
Kananov, S
Kreisel, A
Levy, A
Abe, T
Fusayasu, T
Umemori, K
Yamashita, T
Hamatsu, R
Hirose, T
Inuzuka, M
Kitamura, S
Nishimura, T
Arneodo, M
Cartiglia, N
Cirio, R
Costa, M
Ferrero, M I
Maselli, S
Monaco, V
Peroni, C
Ruspa, M
Sacchi, R
Solano, A
Staiano, A
Dardo, M
Bailey, D C
Fagerstroem, C P
Galea, R
Koop, T
Levman, G M
Martin, J F
Orr, R S
Polenz, S
Sabetfakhri, A
Simmons, D
Butterworth, J M
Catterall, C D
Hayes, M E
Heaphy, E A
Jones, T W
Lane, J B
West, B J
Ciborowski, J
Ciesielski, R
Grzelak, G
Nowak, R J
Pawlak, J M
Pawlak, R
Smalska, B
Tymieniecka, T
Wroblewski, A K
Zakrzewski, J A
Zarnecki, A F
Adamus, M
Gadaj, T
Deppe, O
Eisenberg, Y
Hochman, D
Karshon, U
Badgett, W F
Chapin, D
Cross, R
Foudas, C
Mattingly, S
Reeder, D D
Smith, W H
Vaiciulis, A
Wildschek, T
Wodarczyk, M
Deshpande, A
Dhawan, S
Hughes, V W
Bhadra, S
Catterall, C
Cole, J E
Frisken, W R
Hall-Wilton, R
Khakzad, M
Menary, S
, ZEUS Collaboration
Uncontrolled KeywordsDEEP-INELASTIC SCATTERING, LUND MONTE-CARLO, LOW-X, JET FRAGMENTATION, E+E-PHYSICS, GENERATOR, ENERGY, MODEL, QCD, EP
DepartmentsFaculty of Science\Physics
Research Groups and Centres\Physics\Low Temperature Physics

Identifiers

Deposited by Research Information System (atira) on 18-Nov-2014 in Royal Holloway Research Online.Last modified on 18-Nov-2014


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