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Titolo:
Determination of the deep inelastic contribution to the generalised Gerasimov-Drell-Hearn integral for the proton and neutron
Autore:
Ackerstaff, K; Airapetian, A; Akopov, N; Akushevich, I; Amarian, M; Aschenauer, EC; Avakian, H; Avakian, R; Avetissian, A; Bains, B; Barrow, S; Baumgarten, C; Beckmann, M; Belostotski, S; Belz, JE; Benisch, T; Bernreuther, S; Bianchi, N; Blanchard, S; Blouw, J; Bottcher, H; Borissov, A; Brack, J; Brauksiepe, S; Braun, B; Bray, B; Brons, S; Bruckner, W; Brull, A; Bruins, EEW; Bulten, HJ; Cadman, R; Capitani, GP; Carter, P; Chumney, P; Cisbani, E; Court, GR; Dal Piaz, PF; Delheij, PPJ; De Sanctis, E; De Schepper, D; Devitsin, E; Huberts, PKAD; Di Nezza, P; Duren, M; Dvoredsky, A; Elbakian, G; Ely, J; Emerson, J; Fantoni, A; Fechtchenko, A; Ferstl, M; Fick, D; Fiedler, K; Filippone, BW; Fischer, H; Fortune, HT; Fox, B; Frabetti, S; Franz, J; Frullani, S; Funk, MA; Gagunashvili, ND; Galumian, P; Gao, H; Garber, Y; Garibaldi, F; Gavrilov, G; Geiger, P; Gharibyan, V; Gyurjyan, V; Golendoukhin, A; Graw, G; Grebeniouk, O; Green, PW; Greeniaus, LG; Grosshauser, C; Guidal, MG; Gute, A; Gyurjyan, V; Haas, JP; Haeberli, W; Hansen, JO; Hasch, D; Hausser, O; Heinsius, FH; Henderson, R; Henkes, T; Henoch, M; Hertenberger, R; Holler, Y; Holt, RJ; Hoprich, W; Ihssen, H; Iodice, M; Izotov, A; Jackson, HE; Jgoun, A; Jones, C; Kaiser, R; Kinney, E; Kirsch, M; Kisselev, A; Kitching, P; Kobayashi, H; Koch, N; Konigsmann, K; Kolstein, M; Kolster, H; Korotkov, V; Korsch, W; Kozlov, V; Kramer, LH; Krause, B; Krivokhijine, VG; Kuckes, M; Kummell, F; Kyle, G; Lachnit, W; Lorenzon, W; Lung, A; Makins, NCR; Manaenkov, SI; Martens, FK; Martin, JW; Masoli, F; Mateos, A; McAndrew, M; McIlhany, K; McKeown, RD; Meissner, F; Menden, F; Mercer, D; Metz, A; Meyners, N; Mikloukho, O; Miller, CA; Miller, MA; Milner, R; Mitsyn, V; Most, A; Mozzetti, R; Muccifora, V; Nagaitsev, A; Naryshkin, Y; Nathan, AM; Neunreither, F; Niczyporuk, M; Nowak, WD; Nupieri, M; Oelwein, P; Ogami, H; ONeill, TG; Openshaw, R; Ouyang, J; Owen, B; Papavassiliou, V; Pate, SF; Pitt, M; Poolman, HR; Potashov, S; Potterveld, DH; Rakness, G; Reali, A; Redwine, R; Reolon, AR; Ristinen, R; Rith, K; Roloff, H; Roper, G; Rossi, P; Rudnitsky, S; Ruh, M; Ryckbosch, D; Sakemi, Y; Savin, I; Scarlett, C; Schmidt, F; Schmitt, H; Schnell, G; Schuler, KP; Schwind, A; Seibert, J; Shibata, TA; Shin, T; Shutov, V; Simani, MC; Simon, A; Sinram, K; Slavich, P; Smythe, WR; Sowinski, J; Spengos, M; Steffens, E; Stenger, J; Stewart, J; Stock, F; Stoesslein, U; Sutter, M; Tallini, H; Taroian, S; Terkulov, A; Thiessen, DM; Thomas, E; Tipton, B; Trudel, A; Tytgat, M; Urciuoli, GM; van Hunen, JJ; van de Vyver, R; van den Brand, JFJ; van der Steenhoven, G; Vetterli, MC; Vincter, M; Visser, J; Volk, E; Wander, W; Welch, TP; Williamson, SE; Wise, T; Woller, K; Yoneyama, S; Zapfe-Duren, K; Zohrabian, H; Zurmuhle, R;
Indirizzi:
DESY, D-22603 Hamburg, Germany DESY Hamburg Germany D-22603DESY, D-22603 Hamburg, Germany Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada Univ Alberta Edmonton AB Canada T6G 2J1 hys, Edmonton, AB T6G 2J1, Canada Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA Argonne Natl Lab Argonne IL USA 60439 ab, Div Phys, Argonne, IL 60439 USA CALTECH, WK Kellogg Radiat Lab, Pasadena, CA 91125 USA CALTECH Pasadena CA USA 91125 Kellogg Radiat Lab, Pasadena, CA 91125 USA Univ Colorado, Phys Nucl Lab, Boulder, CO 80309 USA Univ Colorado BoulderCO USA 80309 , Phys Nucl Lab, Boulder, CO 80309 USA DESY Zeuthen, D-15738 Zeuthen, Germany DESY Zeuthen Zeuthen Germany D-15738 Y Zeuthen, D-15738 Zeuthen, Germany Joint Inst Nucl Res, Dubna 141980, Russia Joint Inst Nucl Res Dubna Russia 141980 t Nucl Res, Dubna 141980, Russia Univ Erlangen Nurnberg, Inst Phys, D-91058 Erlangen, Germany Univ ErlangenNurnberg Erlangen Germany D-91058 -91058 Erlangen, Germany Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy Univ Ferrara Ferrara Italy I-44100 partmento Fis, I-44100 Ferrara, Italy Ist Nazl Fis Nucl, I-44100 Ferrara, Italy Ist Nazl Fis Nucl Ferrara Italy I-44100 Fis Nucl, I-44100 Ferrara, Italy Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy Ist Nazl FisNucl Frascati Italy I-00044 ascati, I-00044 Frascati, Italy Florida Int Univ, Dept Phys, Miami, FL 33199 USA Florida Int Univ Miami FL USA 33199 Univ, Dept Phys, Miami, FL 33199 USA Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany Univ Freiburg Freiburg Germany D-79104 k Phys, D-79104 Freiburg, Germany State Univ Ghent, Dept Subatom & Radiat Phys, B-9000 Ghent, Belgium State Univ Ghent Ghent Belgium B-9000 Radiat Phys, B-9000 Ghent, Belgium Max Planck Inst Kernphys, D-69029 Heidelberg, Germany Max Planck Inst Kernphys Heidelberg Germany D-69029 Heidelberg, Germany Univ Illinois, Dept Phys, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 linois, Dept Phys, Urbana, IL 61801 USA Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA Univ Kentucky Lexington KY USA 40506 ys & Astron, Lexington, KY 40506 USA Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England Univ Liverpool Liverpool Merseyside England L69 3BX , Merseyside, England Univ Wisconsin, Dept Phys, Madison, WI 53706 USA Univ Wisconsin Madison WI USA 53706 sin, Dept Phys, Madison, WI 53706 USA Univ Marburg, Inst Phys, D-35037 Marburg, Germany Univ Marburg Marburg Germany D-35037 Inst Phys, D-35037 Marburg, Germany MIT, Nucl Sci Lab, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, Nucl Sci Lab, Cambridge, MA 02139 USA PN Lebedev Phys Inst, Moscow 117924, Russia PN Lebedev Phys Inst Moscow Russia 117924 ys Inst, Moscow 117924, Russia Univ Munich, Sekt Phys, D-85748 Garching, Germany Univ Munich Garching Germany D-85748 ekt Phys, D-85748 Garching, Germany Univ Michigan, Randall Lab Phys, Ann Arbor, MI 48109 USA Univ Michigan Ann Arbor MI USA 48109 ll Lab Phys, Ann Arbor, MI 48109 USA New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA New Mexico State Univ Las Cruces NM USA 88003 s, Las Cruces, NM 88003 USA NIKHEFlandsatl Inst Kernfys & Hoge Energiefys, NL-1009 DB Amsterdam, Nether NIKHEF H Amsterdam Netherlands NL-1009 DB , NL-1009 DB Amsterdam, Nether Univ Oregon, Eugene, OR 97403 USA Univ Oregon Eugene OR USA 97403Univ Oregon, Eugene, OR 97403 USA Univ Penn, Philadelphia, PA 19104 USA Univ Penn Philadelphia PA USA 19104Univ Penn, Philadelphia, PA 19104 USA Petersburg Nucl Phys Inst, Gatchina 188350, Russia Petersburg Nucl Phys Inst Gatchina Russia 188350 Gatchina 188350, Russia Ist Nazl Fis Nucl, Sez Sanita, I-00161 Rome, Italy Ist Nazl Fis Nucl Rome Italy I-00161 cl, Sez Sanita, I-00161 Rome, Italy Ist Super Sanita, Phys Lab, I-00161 Rome, Italy Ist Super Sanita Rome Italy I-00161 anita, Phys Lab, I-00161 Rome, Italy Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada Simon Fraser Univ Burnaby BC Canada V5A 1S6 , Burnaby, BC V5A 1S6, Canada TRIUMF, Vancouver, BC V6T 2A3, Canada TRIUMF Vancouver BC Canada V6T 2A3TRIUMF, Vancouver, BC V6T 2A3, Canada Tokyo Inst Technol, Tokyo 152, Japan Tokyo Inst Technol Tokyo Japan 152Tokyo Inst Technol, Tokyo 152, Japan Free Univ Amsterdam, Dept Phys & Astron, NL-1081 HV Amsterdam, NetherlandsFree Univ Amsterdam Amsterdam Netherlands NL-1081 HV terdam, Netherlands Yerevan Phys Inst, Yerevan 375036, Armenia Yerevan Phys Inst Yerevan Armenia 375036 s Inst, Yerevan 375036, Armenia
Titolo Testata:
PHYSICS LETTERS B
fascicolo: 3-4, volume: 444, anno: 1998,
pagine: 531 - 538
SICI:
0370-2693(199812)444:3-4<531:DOTDIC>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPIN STRUCTURE-FUNCTION; STRUCTURE-FUNCTION G(1)(N); RESONANCE REGION; POLARIZED HE-3; PARTON MODEL; SUM-RULES; E-P; SCATTERING; NUCLEON;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Ackerstaff, K DESY, D-22603 Hamburg, Germany DESY Hamburg Germany D-22603 ESY, D-22603 Hamburg, Germany
Citazione:
K. Ackerstaff et al., "Determination of the deep inelastic contribution to the generalised Gerasimov-Drell-Hearn integral for the proton and neutron", PHYS LETT B, 444(3-4), 1998, pp. 531-538

Abstract

The virtual photon absorption cross section differences [alpha(1/2) - alpha(3/2)] for the proton and neutron have been determined from measurements of polarised cross section asymmetries in deep inelastic scattering of 27.5 GeV longitudinally polarised positrons from polarised H-1 and He-3 internalgas targets. The data were collected in the region above the nucleon resonances in the kinematic range v < 23.5 GeV and 0.8 GeV2 < Q(2) < 12 GeV2. For the proton the contribution to the generalised Gerasimov-Drell-Hearn integral was found to be substantial and must be included for an accurate determination of the full integral. Furthermore the data are consistent with a QCD next-to-leading order fit based on previous deep inelastic scattering data. Therefore higher twist effects do not appear significant. (C) 1998 Elsevier Science B.V. All rights reserved.

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Documento generato il 29/09/20 alle ore 20:45:27