Experimental check of the Gerasimov-Drell-Hearn sum rule for H-1

For the first time we checked the fundamental Gerasimov-Drell-Hearn (GDH) sum rule for the proton experimentally in the photon energy range from 0.2-2.9 GeV with the tagged photon facilities at MAMI (Mainz) and ELSA (Bonn). New data of the doubly polarized total cross section difference are presented in the energy range from 1.6 to 2.9 GeV. The contribution to the GDH integral from 0.2-2.9 GeV yields [254+/-5(stat)+/-12(syst)] mub with negative contributions in the Regge regime at photon energies above 2.1 GeV. This trend supports the validity of the GDH sum rule.

Helbing, K (author)
Krimmer, J (author)
Speckner, T (author)
Zeitler, G (author)
Ahrens, J (author)
Altieri, S (author)
Annand, JRM (author)
Anton, G (author)
Arends, HJ (author)
Beck, R (author)
Bock, A (author)
Bradtke, C (author)
Braghieri, A (author)
von Drachenfels, W (author)
Frommberger, F (author)
Godo, M (author)
Goertz, S (author)
Grabmayr, P (author)
Hasegawa, S (author)
Hansen, KurtLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)maxl-kha (author)
Harmsen, J (author)
Heid, E (author)
Hillert, W (author)
Holvoet, H (author)
Horikawa, N (author)
Iwata, T (author)
Van Hoorebeke, L (author)
d'Hose, N (author)
Jennewein, P (author)
Kiel, B (author)
Klein, F (author)
Kondratiev, R (author)
Lang, M (author)
Lannoy, B (author)
Leukel, R (author)
Lisin, V (author)
Menze, D (author)
Meyer, W (author)
Michel, T (author)
Naumann, J (author)
Panzeri, A (author)
Pedroni, P (author)
Pinelli, T (author)
Preobrajenski, I (author)
Radtke, E (author)
Reicherz, G (author)
Rohlof, C (author)
Rostomyan, T (author)
Sauer, M (author)
Schoch, B (author)
Schumacher, M (author)
Tamas, G (author)
Thomas, A (author)
van de Vyver, R (author)
Weihofen, W (author)
Zapadtka, F (author)
Lunds universitetMAX IV-laboratoriet (creator_code:org_t)

About the subject

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.