Journalartikel

Extracting the spin polarizabilities of the proton by measurement of Compton double-polarization observables


AutorenlistePaudyal, D.; Martel, P. P.; Huber, G. M.; Hornidge, D.; Abt, S.; Achenbach, P.; Adlarson, P.; Afzal, F.; Ahmed, Z.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Bashkanov, M.; Beck, R.; Biroth, M.; Borisov, N. S.; Braghieri, A.; Briscoe, W. J.; Cividini, F.; Costanza, S.; Collicott, C.; Denig, A.; Dieterle, M.; Downie, E. J.; Drexler, P.; Ferretti-Bondy, M., I; Gardner, S.; Garni, S.; Glazier, D., I; Glowa, D.; Gorodnov, I; Gradl, W.; Guenther, S.; Gurevich, G. M.; Hamilton, D.; Heijkenskjoeld, L.; Kaeser, A.; Kashevarov, V. L.; Kay, S.; Keshelashvili, I; Kondratiev, R.; Korolija, M.; Krusche, B.; Lazarev, A. B.; Linturi, J. M.; Lisin, V; Livingston, K.; Lutterer, S.; MacGregor, I. J. D.; Macrae, R.; Mancell, J.; Manley, D. M.; Metag, V; Meyer, W.; Miskimen, R.; Mornacchi, E.; Mullen, C.; Mushkarenkov, A.; Neganov, A. B.; Neiser, A.; Oberle, M.; Ostrick, M.; Otte, P. B.; Pedroni, P.; Polonski, A.; Powell, A.; Prakhov, S. N.; Rajabi, A.; Reicherz, G.; Ron, G.; Rostomyan, T.; Sarty, A.; Sfienti, C.; Sikora, M. H.; Sokhoyan, V; Spieker, K.; Steffen, O.; Strakovsky, I. I.; Strub, Th; Supek, I; Thiel, A.; Thiel, M.; Thomas, A.; Unverzagt, M.; Usov, Yu A.; Wagner, S.; Walford, N. K.; Watts, D. P.; Werthmueller, D.; Wettig, J.; Witthauer, L.; Wolfes, M.; Zana, L.

Jahr der Veröffentlichung2020

ZeitschriftPhysical Review C

Bandnummer102

Heftnummer3

ISSN2469-9985

eISSN2469-9993

Open Access StatusHybrid

DOI Linkhttps://doi.org/10.1103/PhysRevC.102.035205

VerlagAmerican Physical Society


Abstract
The Compton double-polarization observable Sigma(2z) has been measured for the first time in the Delta(1232) resonance region using a circularly polarized photon beam incident on a longitudinally polarized proton target at the Mainz Microtron. This paper reports these results, together with the model-dependent extraction of four proton spin polarizabilities from fits to additional asymmetry data using either a dispersion relation calculation or a baryon chiral perturbation theory calculations with the weighted average of these two fits resulting -2.87 0.52, gamma(E1E1) = 2.70 0.43, gamma(E1M2) = in gamma(E1M2) = -0.85 +/- 0.72, and gamma(M1E2) = 2.04 +/- 0.43, in units of 10(-4) fm(4).



Zitierstile

Harvard-ZitierstilPaudyal, D., Martel, P., Huber, G., Hornidge, D., Abt, S., Achenbach, P., et al. (2020) Extracting the spin polarizabilities of the proton by measurement of Compton double-polarization observables, Physical Review C, 102(3), Article 035205. https://doi.org/10.1103/PhysRevC.102.035205

APA-ZitierstilPaudyal, D., Martel, P., Huber, G., Hornidge, D., Abt, S., Achenbach, P., Adlarson, P., Afzal, F., Ahmed, Z., Akondi, C., Annand, J., Arends, H., Bashkanov, M., Beck, R., Biroth, M., Borisov, N., Braghieri, A., Briscoe, W., Cividini, F., ...Zana, L. (2020). Extracting the spin polarizabilities of the proton by measurement of Compton double-polarization observables. Physical Review C. 102(3), Article 035205. https://doi.org/10.1103/PhysRevC.102.035205



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MAINZMAMIMICROTRONSPECTROMETER


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