First measurement of polarisation transfer Cxjavax.xml.bind.JAXBElement@51f74940n in deuteron photodisintegration
Academic Article
Publication Date:
2023
abstract:
A first measurement of the polarisation transfer from a circularly-polarised photon to the final state neutron (Cxjavax.xml.bind.JAXBElement@c35188dn) in deuterium photodisintegration has been carried out. This quantity is determined over the photon energy range 370 – 700 MeV and for neutron centre-of-mass breakup angles ∼45−120∘. The polarisation of the final state neutrons was determined by an ancillary large-acceptance nucleon polarimeter, surrounding a cryogenic liquid deuterium target within the Crystal Ball detector at MAMI. The polarimeter characterised (n,p) charge exchange of the ejected neutrons to determine their polarisation. The new Cxjavax.xml.bind.JAXBElement@3e028df3n data are also compared to a theoretical model based on nucleonic and nucleon resonance degrees of freedom constrained by the current world-database of deuterium photodisintegration measurements. Structures in Cxjavax.xml.bind.JAXBElement@55f983f0n observed in the region of the d⁎(2380) could not be explained by conventional models of deuteron photodisintegration.
Iris type:
1.1 Articolo in rivista
List of contributors:
Bashkanov, M.; Watts, D. P.; Kay, S.; Abt, S.; Achenbach, P.; Adlarson, P.; Afzal, F.; Ahmed, Z.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Beck, R.; Biroth, M.; Borisov, N.; Braghieri, A.; Briscoe, W. J.; Cividini, F.; Collicott, C.; Costanza, S.; Denig, A.; Downie, E. J.; Drexler, P.; Fegan, S.; Fix, A.; Gardner, S.; Ghosal, D.; Glazier, D. I.; Gorodnov, I.; Gradl, W.; Gunther, M.; Gurevich, D.; Heijkenskj-ld, L.; Hornidge, D.; Huber, G. M.; Kaser, A.; Kashevarov, V. L.; Korolija, M.; Krusche, B.; Lazarev, A.; Livingston, K.; Lutterer, S.; Macgregor, I. J. D.; Manley, D. M.; Martel, P. P.; Miskimen, R.; Mornacchi, E.; Mullen, C.; Neganov, A.; Neiser, A.; Ostrick, M.; Otte, P. B.; Paudyal, D.; Pedroni, P.; Powell, A.; Prakhov, S. N.; Sokhoyan, V.; Spieker, K.; Steffen, O.; Strakovsky, I. I.; Strub, T.; Supek, I.; Thiel, A.; Thiel, M.; Thomas, A.; Usov, Y. A.; Wagner, S.; Wettig, J.; Wolfes, M.; Zachariou, N.
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