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Measurement of Z0 decays to hadrons, and a precise determination of the number of neutrino species
dc.contributor.authorAdeva, B.en_US
dc.date.accessioned2006-05-10T15:42:55Z
dc.date.available2006-05-10T15:42:55Z
dc.date.issued1990-03-08en_US
dc.identifier.citationAdeva, B. (1990/03/08)."Measurement of Z0 decays to hadrons, and a precise determination of the number of neutrino species." Physics Letters B 237(1): 136-146. <http://hdl.handle.net/2027.42/28683>en_US
dc.identifier.urihttp://www.sciencedirect.com/science/article/B6TVN-46YKMGK-1WB/2/fc55851f541d631c2e2169d7710aff72en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/28683
dc.description.abstractWe have made a precise measurement of the cross section for e+e---&gt;Z0--&gt;hadrons with the L3 detector at LEP, covering the range from 88.28 to 95.04 GeV. From a fit to the Z0 mass, total width, and the hadronic cross section to be MZ0=91.160 +/- 0.024 (experiment) +/-0.030(LEP) GeV, [Gamma]Z0=2.539+/-0.054 GeV, and [sigma]h(MZ0)=29.5+/-0.7 nb. We also used the fit to the Z0 peak cross section and the width todetermine [Gamma]invisible=0.548+/-0.029 GeV, which corresponds to 3.29+/-0.17 species of light neutrinos. The possibility of four or more neutrino flavors is thus ruled out at the 4[sigma] confidence level.en_US
dc.format.extent42272 bytes
dc.format.extent3118 bytes
dc.format.extent960321 bytes
dc.format.mimetypetext/plain
dc.format.mimetypetext/plain
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.titleMeasurement of Z0 decays to hadrons, and a precise determination of the number of neutrino speciesen_US
dc.typeArticleen_US
dc.rights.robotsIndexNoFollowen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbsecondlevelMathematicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationotherno department founden_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/28683/3/0000500.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1016/0370-2693(90)90476-Men_US
dc.identifier.sourcePhysics Letters Ben_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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