; Ciullo, G. ; Contalbrigo, M. ; Dalpiaz, P. F. ; Deconinck, W.
; De Leo, R. ; De Nardo, L. ; De Sanctis, E. ; Diefenthaler, M. ; Di Nezza, P. ; Düren, M. ; Ehrenfried, M. ; Elbakian, G. ; Ellinghaus, F.
; Fantoni, A. ; Felawka, L. ; Frullani, S. ; Gabbert, D. ; Gapienko, G. ; Gapienko, V. ; Garibaldi, F. ; Gavrilov, G. ; Gharibyan, V. ; Giordano, F. ; Gliske, S.
; Golembiovskaya, M. ; Hadjidakis, C. ; Hartig, M. ; Hasch, D. ; Hillenbrand, A. ; Hoek, M.
; Holler, Y. ; Hristova, I. ; Imazu, Y. ; Ivanilov, A. ; Jackson, H. E. ; Jo, H. S. ; Joosten, S. ; Kaiser, R. ; Karyan, G. ; Keri, T. ; Kinney, E. ; Kisselev, A. ; Korotkov, V. ; Kozlov, V. ; Kravchenko, P. ; Krivokhijine, V. G. ; Lagamba, L.
; Lapikás, L. ; Lehmann, I. ; Lenisa, P. ; López Ruiz, A. ; Lorenzon, W. ; Ma, B.-Q. ; Mahon, D. ; Makins, N. C. R. ; Manaenkov, S. I. ; Manfré, L. ; Mao, Y. ; Marianski, B. ; Martinez de la Ossa, A. ; Marukyan, H. ; Miller, C. A. ; Miyachi, Y. ; Movsisyan, A. ; Muccifora, V. ; Murray, M. ; Mussgiller, A. ; Nappi, E. ; Naryshkin, Y. ; Nass, A. ; Negodaev, M. ; Nowak, W.-D. ; Pappalardo, L. L. ; Perez-Benito, R. ; Petrosyan, A. ; Reimer, P. E.
; Reolon, A. R. ; Riedl, C. ; Rith, K. ; Rosner, G. ; Rostomyan, A. ; Rubin, J. ; Ryckbosch, D. ; Salomatin, Y. ; Sanftl, F. ; Schäfer, A. ; Schnell, G. ; Schüler, K. P. ; Seitz, B. ; Shibata, T.-A. ; Shutov, V. ; Stancari, M. ; Statera, M. ; Steffens, E. ; Steijger, J. J. M. ; Stewart, J. ; Stinzing, F. ; Taroian, S. ; Terkulov, A.
; Truty, R. ; Trzcinski, A. ; Tytgat, M.
; Vandenbroucke, A. ; Van Haarlem, Y. ; Van Hulse, C. ; Veretennikov, D. ; Vikhrov, V. ; Vilardi, I. ; Wang, S. ; Yaschenko, S. ; Ye, Z. ; Yen, S. ; Zagrebelnyy, V. ; Zeiler, D. ; Zihlmann, B. ; Zupranski, P. | Item type: | Article | ||||
|---|---|---|---|---|---|
| Journal or Publication Title: | The European Physical Journal C | ||||
| Publisher: | SPRINGER | ||||
| Place of Publication: | NEW YORK | ||||
| Volume: | 72 | ||||
| Number of Issue or Book Chapter: | 3 | ||||
| Date: | 2012 | ||||
| Institutions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer | ||||
| Identification Number: |
| ||||
| Keywords: | DEEP-INELASTIC-SCATTERING; ELECTRON STORAGE-RING; SUM-RULES; HERA; POLARIZATION; POLARIMETER; TARGET; | ||||
| Dewey Decimal Classification: | 500 Science > 530 Physics | ||||
| Status: | Published | ||||
| Refereed: | Yes, this version has been refereed | ||||
| Created at the University of Regensburg: | Yes | ||||
| Item ID: | 63962 |
Abstract
A measurement of the virtual-photon asymmetry A(2)(x, Q(2)) and of the spin-structure function g(2)(x, Q(2)) of the proton are presented for the kinematic range 0.004 < x < 0.9 and 0.18 GeV2 < Q(2) < 20 GeV2. The data were collected by the HERMES experiment at the HERA storage ring at DESY while studying inclusive deep-inelastic scattering of 27.6 GeV longitudinally polarized leptons off a ...

Abstract
A measurement of the virtual-photon asymmetry A(2)(x, Q(2)) and of the spin-structure function g(2)(x, Q(2)) of the proton are presented for the kinematic range 0.004 < x < 0.9 and 0.18 GeV2 < Q(2) < 20 GeV2. The data were collected by the HERMES experiment at the HERA storage ring at DESY while studying inclusive deep-inelastic scattering of 27.6 GeV longitudinally polarized leptons off a transversely polarized hydrogen gas target. The results are consistent with previous experimental data from CERN and SLAC. For the x-range covered, the measured integral of g(2)(x) converges to the null result of the Burkhardt-Cottingham sum rule. The x(2) moment of the twist-3 contribution to g(2)(x) is found to be compatible with zero.
Metadata last modified: 19 Dec 2024 09:42
Altmetric