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dc.contributor.authorEllis, John R.
dc.contributor.authorKarliner, Marek
dc.date.accessioned2010-02-04T14:16:33Z
dc.date.available2010-02-04T14:16:33Z
dc.date.issued2005-01
dc.identifier.urihttp://www.dspace.cam.ac.uk/handle/1810/224276
dc.description.abstractWe make a first crude direct estimate of the net gluon polarization in the proton, G, combining data on the asymmetries in high-pT hadron production from the HERMES, SMC and COMPASS collaborations. Although these data sample a restricted range of x, they provide no hint that G is large. Fixing the normalizations of different theoretical parametrizations using the hadron asymmetry data, we find typical central values of G ∼ 0.5, with uncertainties of similar magnitude. Values of G ≥ 2 are disfavoured by 2 ∼ 9 to 20, depending on the parametrization used.en
dc.language.isoenen
dc.publisherHEP, Cavendish Laboratory, University of Cambridgeen
dc.relation.ispartofseriesCavendish-HEP-05-02en
dc.rightsAll Rights Reserveden
dc.rights.urihttps://www.rioxx.net/licenses/all-rights-reserved/en
dc.titleDirect estimate of the gluon polarization in the nucleon.en
dc.typeArticleen
dc.type.versionnot applicableen
pubs.declined2017-10-11T13:54:28.412+0100


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