Search Results - "Günther, P.O"
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Search for doubly charged Higgs bosons with the OPAL detector at LEP
Published in Physics letters. B (07-02-2002)“…A search for pair-produced doubly charged Higgs bosons has been performed using data samples corresponding to an integrated luminosity of about 614 pb−1…”
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2
Search for the single production of doubly-charged Higgs bosons and constraints on their couplings from Bhabha scattering
Published in Physics letters. B (25-12-2003)“…A search for the single production of doubly-charged Higgs bosons is performed using e+e− collision data collected by the OPAL experiment at centre-of-mass…”
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3
Search for single top quark production at LEP2
Published in Physics letters. B (29-11-2001)“…A search for single top quark production via flavour changing neutral currents (FCNC) was performed with data collected by the OPAL detector at the e+e−…”
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4
Search for scalar top and scalar bottom quarks at LEP
Published in Physics letters. B (10-10-2002)“…Searches for a scalar top quark and a scalar bottom quark have been performed using a data sample of 438 pb−1 at centre-of-mass energies of s=192–209 GeV…”
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5
W boson polarisation at LEP2
Published in Physics letters. B (15-04-2004)“…Elements of the spin density matrix for W bosons in e+e−→W+W−→qq̄′ℓνℓ events are measured from data recorded by the OPAL detector at LEP. This information is…”
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6
Measurement of heavy quark forward–backward asymmetries and average B mixing using leptons in hadronic Z decays
Published in Physics letters. B (18-12-2003)“…A measurement of the forward–backward asymmetries of e+e−→bb̄ and e+e−→cc̄ events using electrons and muons produced in semileptonic decays of bottom and charm…”
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7
Measurement of the charm structure function F2,c of the photon at LEP
Published in Physics letters. B (11-07-2002)Get full text
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8
Measurements of Rb in e+e− collisions at s between 182 and 209 GeV
Published in Physics letters. B (10-03-2005)“…Measurements of Rb, the ratio of the bb¯ cross-section to the qq¯ cross-section in e+e− collisions, are presented. The data were collected by the OPAL…”
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9
Measurements of R b in e + e − collisions at s between 182 and 209 GeV
Published in Physics letters. B (01-03-2005)Get full text
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10
Multi-photon events with large missing energy in e+e− collisions at s=192–209 GeV
Published in Physics letters. B (25-11-2004)“…Events with a final state consisting of two or more photons and large missing transverse energy have been observed in e+e− collisions at centre-of-mass…”
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11
Bose–Einstein correlations of π0 pairs from hadronic Z0 decays
Published in Physics letters. B (01-05-2003)“…We observe Bose–Einstein correlations in π0 pairs using back-to-back two jet hadronic events from Z0 decays in the data sample collected by the OPAL detector…”
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12
A measurement of the [formula omitted] branching ratio
Published in Physics letters. B (02-01-2003)“…The τ−→μ−ν̄μντ branching ratio has been measured using data collected from 1990 to 1995 by the OPAL detector at the LEP collider. The resulting value of…”
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13
A measurement of the τ−→μ−ν̄μντ branching ratio
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14
Charged particle multiplicities in heavy and light quark initiated events above the Z0 peak
Published in Physics letters. B (12-12-2002)“…We have measured the mean charged particle multiplicities separately for bb̄, cc̄ and light quark (uū,dd̄,ss̄) initiated events produced in e+e− annihilations…”
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15
Measurement of the b quark forward–backward asymmetry around the Z0 peak using an inclusive tag
Published in Physics letters. B (17-10-2002)“…The b quark forward–backward asymmetry has been measured using hadronic Z0 decays collected by the OPAL experiment at LEP. Z0→bb̄ decays were selected using a…”
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16
Search for associated production of massive states decaying into two photons in e+e− annihilations at [formula omitted]–209 GeV
Published in Physics letters. B (19-09-2002)“…A search is performed for production of short-lived particles in e+e−→XY, with X→γγ and Y→ff̄, for scalar X and scalar or vector Y. Model-independent limits in…”
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17
Search for associated production of massive states decaying into two photons in e+e− annihilations at =88–209 GeV
Published in Physics letters. B (01-09-2002)Get full text
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18
Search for charged excited leptons in e+e− collisions at =183–209 GeV
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19
Measurement of the charm structure function F2,cγ of the photon at LEP
Published in Physics letters. B (2002)“…The production of charm quarks is studied in deep-inelastic electron–photon scattering using data recorded by the OPAL detector at LEP at nominal e +e −…”
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20
Genuine correlations of like-sign particles in hadronic Z0 decays
Published in Physics letters. B (20-12-2001)“…Correlations among hadrons with the same electric charge produced in Z0 decays are studied using the high statistics data collected from 1991 through 1995 with…”
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