Measurement Of The Proton Structure Function F-2 And Sigma(Gamma*P)(Tot) At Low Q(2) And Very Low X At Hera J Breitweg , M Derrick , D Krakauer , S Magill , D Mikunas , B Musgrave , J Repond , R Stanek , Rl Talaga , R Yoshida , H Zhang , Mck Mattingly , 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 , M Corradi , S Depasquale , I Gialas , P Giusti , G Iacobucci , G Laurenti , G Levi , A Margotti , T Massam , R Nania , F Palmonari , A Pesci , A Polini , F Ricci , G Sartorelli , Yz Garcia , A Zichichi , C Amelung , A Bornheim , I Brock , K Coboken , J Crittenden , R Deffner , M Eckert , M Grothe , H Hartmann , K Heinloth , L Heinz , E Hilger , Hp Jakob , Uf Katz , R Kerger , E Paul , M Pfeiffer , C Rembser , J Stamm , R Wedemeyer , H Wieber , Ds Bailey , S Campbellrobson , Wn Cottingham , B Foster , R Hallwilton , Me Hayes , Gp Heath , Hf Heath , D Piccioni , Dg Roff , Rj Tapper , M Arneodo , R Ayad , M Capua , A Garfagnini , L Iannotti , M Schioppa , G Susinno , Jy Kim , Jh Lee , It Lim , My Pac , A Caldwell , N Cartiglia , Z Jing , W Liu , B Mellado , Ja Parsons , S Ritz , S Sampson , F Sciulli , Pb Straub , Q Zhu , P Borzemski , J Chwastowski , A Eskreys , Z Jakubowski , Mb Przybycien , M Zachara , L Zawiejski , L Adamczyk , B Bednarek , K Jelen , D Kisielewska , T Kowalski , M Przybycien , E Rulikowskazarebska , L Suszycki , J Zajac , Z Dulinski , A Kotanski , G Abbiendi , Lat Bauerdick , U Behrens , H Beier , Jk Bienlein , G Cases , O Deppe , K Desler , G Drews , U Fricke , Dj Gilkinson , C Glasman , P Gottlicher , J Grosseknetter , T Haas , W Hain , D Hasell , Kf Johnson , M Kasemann , W Koch , U Kotz , H Kowalski , J Labs , L Lindemann , B Lohr , M Lowe , O Manczak , J Milewski , T Monteiro , Jst Ng , D Notz , K Ohrenberg , Ih Park , A Pellegrino , F Pelucchi , K Piotrzkowski , M Roco , M Rohde , J Roldan , Jj Ryan , Aa Savin , U Schneekloth , F Selonke , B Surrow , E Tassi , T Voss , D Westphal , G Wolf , U Wollmer , C Youngman , Af Zarnecki , W Zeuner , Bd Burow , Hj Grabosch , A Meyer , S Schlenstedt , G Barbagli , E Gallo , P Pelfer , G Maccarrone , L Votano , A Bamberger , S Eisenhardt , P Markun , T Trefzger , S Wolfle , Jt Bromley , Nh Brook , Pj Bussey , At Doyle , Dh Saxon , Le Sinclair , E Strickland , Ml Utley , R Waugh , As Wilson , I Bohnet , N Gendner , U Holm , A Meyerlarsen , H Salehi , K Wick , Lk Gladilin , D Horstmann , D Kcira , R Klanner , E Lohrmann , G Poelz , W Schott , F Zetsche , Tc Bacon , I Butterworth , Je Cole , Vl Harris , G Howell , Bhy Hung , L Lamberti , Kr Long , Db Miller , N Pavel , A Prinias , Jk Sedgbeer , D Sideris , Af Whitfield , U Mallik , Sm Wang , Jt Wu , P Cloth , D Filges , Ji Fleck , T Ishii , M Kuze , M Nakao , K Tokushuku , S Yamada , Y Yamazaki , Sh An , Sb Lee , Sw Nam , Hs Park , Sk Park , F Barreiro , Jp Fernandez , G Garcia , R Graciani , Jm Hernandez , L Hervas , L Labarga , M Martinez , J Delpeso , J Puga , J Terron , Jf Detroconiz , F Corriveau , Ds Hanna , J Hartmann , Lw Hung , Jn Lim , Wn Murray , A Ochs , M Riveline , Dg Stairs , M Stlaurent , R Ullmann , T Tsurugai , V Bashkirov , Ba Dolgoshein , A Stifutkin , 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 Brummer , F Chlebana , J Engelen , P Kooijman , A Vansighem , H Tiecke , N Tuning , W Verkerke , J Vossebeld , M Vreeswijk , L Wiggers , E Dewolf , D Acosta , B Bylsma , Ls Durkin , J Gilmore , Cm Ginsburg , Cl Kim , Ty Ling , P Nylander , Ta Romanowski , He Blaikley , Rj Cashmere , Am Coopersarkar , Rce Devenish , Jk Edmonds , N Harnew , M Lancaster , Jd Mcfall , C Nath , Va Noyes , A Quadt , O Ruske , Jr Tickner , H Uijterwaal , R Walczak , Ds Waters , A Bertolin , R Brugnera , R Carlin , F Dalcorso , U Dosselli , S Limentani , M Morandin , M Posocco , L Stanco , R Stroili , C Voci , J Bulmahn , Rg Feild , By Oh , Jr Okrasinski , Jj Whitmore , Y Iga , G Dagostini , G Marini , A Nigro , M Raso , Jc Hart , Na Mccubbin , Tp Shah , D Epperson , C Heusch , Jt Rahn , Hfw Sadrozinski , A Seiden , Dc Williams , O Schwarzer , Ah Walenta , H Abramowicz , G Briskin , S Dagan , T Doeker , S Kananov , A Levy , T Abe , T Fusayasu , M Inuzuka , K Nagano , I Suzuki , K Umemori , T Yamashita , R Hamatsu , T Hirose , K Homma , S Kitamura , T Matsushita , K Yamauchi , R Cirio , M Costa , Mi Ferrero , S Maselli , V Monaco , C Peroni , Mc Petrucci , R Sacchi , A Solano , A Staiano , M Dardo , Dc Bailey , M Brkic , Cp 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 , J Ciborowski , G Grzelak , M Kasprzak , K Muchorowski , Rj Nowak , Jm Pawlak , R Pawlak , T Tymieniecka , Ak Wroblewski , Ja Zakrzewski , C Coldewey , Y Eisenberg , D Hochman , U Karshon , D Revel , Wf Badgett , D Chapin , R Cross , S Dasu , C Foudas , Rj Loveless , S Mattingly , Dd Reeder , Wh Smith , A Vaiciulis , M Wodarczyk , S Bhadra , Wr Frisken , M Khakzad , Wb Schmidke PHYSICS LETTERS B（1997）
摘要
A small electromagnetic sampling calorimeter, installed in the ZEUS experiment in 1995, significantly enhanced the acceptance for very low x and low Q(2) inelastic neutral current scattering, e(+)p --> e(+)X, at HERA. A measurement of the proton structure function F-2 and the total virtual photon-proton (gamma*p) cross-section is presented for 0.11 less than or equal to Q(2) less than or equal to 0.65 GeV2 and 2 x 10(-6) less than or equal to x less than or equal to 6 x 10(-5), corresponding to a range in the gamma*p c.m. energy of 100 less than or equal to W less than or equal to 230 GeV. Comparisons with various models are also presented. (C) 1997 Published by Elsevier Science B.V.
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