Observation of Polarization in Bottomonium Production at sqrt(s)=38.8 GeV

Simple item page
dc.creatorBrown, C. N.
dc.creatorAwes, T. C.
dc.creatorBeddo, M. E.
dc.creatorBrooks, M. L.
dc.creatorBush, J. D.
dc.creatorCarey, T. A.
dc.creatorChang, T. H.
dc.creatorCooper, W. E.
dc.creatorGagliardi, C. A.
dc.creatorGarvey, G. T.
dc.creatorGeesaman, D. F.
dc.creatorHawker, E. A.
dc.creatorHe, X. C.
dc.creatorIsenhower, L. D.
dc.creatorKaplan, D. M.
dc.creatorKaufman, S. B.
dc.creatorKoetke, D. D.
dc.creatorKyle, G.
dc.creatorLee, W. M.
dc.creatorLeitch, M. J.
dc.creatorMakins, N.
dc.creatorMcGaughey, P. L.
dc.creatorMoss, J. M.
dc.creatorMueller, B. A.
dc.creatorNord, P. M.
dc.creatorPapavassiliou, V.
dc.creatorPark, B. K.
dc.creatorPeng, J. C.
dc.creatorPetitt, G.
dc.creatorReimer, P. E.
dc.creatorSadler, M. E.
dc.creatorStankus, P. W.
dc.creatorTowell, R. S.
dc.creatorTribble, R. E.
dc.creatorVasiliev, M. A.
dc.creatorWebb, J. C.
dc.creatorYoung, G. R.
dc.date2000-11-09
dc.date.accessioned2026-07-07T12:01:34Z
dc.date.available2026-07-07T12:01:34Z
dc.descriptionWe present a measurement of the polarization observed for bottomonium states produced in p-Cu collisions at sqrt(s)=38.8 GeV. The angular distribution of the decay dimuons of the Upsilon(1S) state show no polarization at small xF and pT but significant positive transverse production polarization for either pT > 1.8 GeV/c or for xF > 0.35. The Upsilon(2S+3S) unresolved states show a large transverse production polarization at all values of xF and pT measured. These observations are compared with an NRQCD calculation that predicts a transverse polarization in bottomonium production arising from quark-antiquark fusion and gluon-gluon fusion diagrams.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/hep-ex/0011030
dc.identifierhttp://arxiv.org/abs/hep-ex/0011030
dc.identifierPhys.Rev.Lett.86:2529-2532,2001
dc.identifierdoi:10.1103/PhysRevLett.86.2529
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207136
dc.subjectHigh Energy Physics - Experiment
dc.titleObservation of Polarization in Bottomonium Production at sqrt(s)=38.8 GeV
dc.typetext

Files

Collections

arXiv