The NuTeV Collaboration has extracted the electroweak parameter sin(2)theta(W) from the measurement of the ratios of neutral current to charged current nu and (-)nu cross sections. Our value, ...sin(2)theta((on-shell))(W) = 0.2277 +/- 0.0013(stat) +/- 0.0009(syst), is 3 standard deviations above the standard model prediction. We also present a model independent analysis of the same data in terms of neutral-current quark couplings.
Review of particle physics Hagiwara, K; Nakamura, K; Amsler, C ...
Physical review. D, Particles and fields,
07/2002, Letnik:
66, Številka:
1
Journal Article
Recenzirano
This biennial Review summarizes much of Particle Physics Using data from previous editions, plus 2205 new measurements from 667 papers, we list, evaluate, and average measured properties of gauge ...bosons, leptons, quarks, mesons, and baryons We also summarize searches for hypothetical particles such as Higgs bosons, heavy neutrinos, and supersymmetric particles All the particle properties and search limits are listed in Summary Tables We also give numerous tables, figures, formulae, and reviews of topics such as the Standard Model, particle detectors, probability, and statistics This edition features expanded coverage of CP violation in B mesons and of neutrino oscillations For the first time we cover searches for evidence of extra dimensions (both in the particle listings and in a new review) Another new review is on Grand Unified Theories A booklet is available containing the Summary Tables and abbreviated versions of some of the other sections of this full Review All tables, listings, and reviews (and errata) are also available on the Particle Data Group website http //pdg 1b1 gov.
A search for neutral heavy leptons (NHLs) has been performed using an instrumented decay channel at the NuTeV (E-815) experiment at Fermilab. The data were examined for NHLs decaying into muonic ...final states ({mu}{mu}{nu} , {mu}e{nu} , {mu}{pi} , and {mu}{rho} ); no evidence has been found for NHLs in the 0.25-2.0 GeV mass range. This analysis places limits on the mixing of NHLs with standard light neutrinos at a level up to an order of magnitude more restrictive than previous search limits in this mass range. (c) 1999 The American Physical Society.
The CCFR collaboration reports a precise measurement of electroweak parameters derived from the ratio of neutral-current to charged-current cross-sections in neutrino-nucleon scattering at the ...Fermilab Tevatron. We determine for GeV, GeV. This is equivalent to GeV. The good agreement of this measurement with Standard Model expectations implies the exclusion of additional contact interactions at 95% confidence at a mass scale of 1-8 TeV, depending on the form of the contact interaction.
Precision calibration of the NuTeV calorimeter Harris, D.A.; Yu, J.; Adams, T. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
06/2000, Letnik:
447, Številka:
3
Journal Article
Recenzirano
Odprti dostop
NuTeV is a neutrino–nucleon deep-inelastic scattering experiment at Fermilab. The detector consists of an iron-scintillator sampling calorimeter interspersed with drift chambers, followed by a muon ...toroidal spectrometer. We present determinations of response and resolution functions of the NuTeV calorimeter for electrons, hadrons, and muons over an energy range from 4.8 to 190
GeV. The absolute hadronic energy scale is determined to an accuracy of 0.43%. We compare our measurements to predictions from calorimeter theory and GEANT3 simulations.
A search for long-lived neutral particles ( N0's) with masses above 2.2 GeV/c(2) that decay into at least one muon has been performed using an instrumented decay channel at the NuTeV experiment at ...Fermilab. Data were examined for particles decaying into the final states mumu, mu(e), and mu(pi). Three mumu events were observed over an expected standard model background of 0.069+/-0.010 events; no events were observed in the other modes.
A preliminary measurement of sin{sup 2} {theta}{sub W} in {nu}-N deep inelastic scattering from the NuTeV experiment is presented. Using separate neutrino and antineutrino beams, NuTeV is able to ...determine sin{sup 2} {theta}{sub W} with low systematic errors. NuTeV measures sin{sup 2} {theta}{sub W}{sup (on-shell)}=0.2253{+-}0.0019(stat){+-}0.0010(syst), which implies M{sub W}=80.26{+-}0.11 GeV. Expectations are also presented for the NuTeV search for {nu}{sub {mu}}{yields}{nu}{sub {tau}} and {nu}{sub {mu}}{yields}{nu}{sub e} oscillations using the measured neutral to charged-current ratio. The future BooNE experiment is described which searches for {nu}{sub {mu}}{yields}{nu}{sub e} appearance and {nu}{sub {mu}} disappearance oscillations using a new neutrino beam created from the Fermilab 8 GeV Booster accelerator. The experiment is designed to cover definitively the {delta}m{sup 2}/sin{sup 2} 2{theta} region associated with the possible oscillation signal from the LSND experiment and to measure accurately the oscillation parameters if a signal is observed.
Phys. Rev. D 92, 092010 (2015) "KPipe" is a proposed experiment which will study muon neutrino disappearance
for a sensitive test of the $\Delta m^2\sim1 \mathrm{eV}^2$ anomalies, possibly
indicative ...of one or more sterile neutrinos. The experiment is to be located at
the J-PARC Materials and Life Science Facility's spallation neutron source,
which represents the world's most intense source of charged kaon decay-at-rest
monoenergetic (236 MeV) muon neutrinos. The detector vessel, designed to
measure the charged current interactions of these neutrinos, will be 3 m in
diameter and 120 m long, extending radially at a distance of 32 m to 152 m from
the source. This design allows a sensitive search for $\nu_\mu$ disappearance
associated with currently favored light sterile neutrino models and features
the ability to reconstruct the neutrino oscillation wave within a single,
extended detector. The required detector design, technology, and costs are
modest. The KPipe measurements will be robust since they depend on a known
energy neutrino source with low expected backgrounds. Further, since the
measurements rely only on the measured rate of detected events as a function of
distance, with no required knowledge of the initial flux and neutrino
interaction cross section, the results will be largely free of systematic
errors. The experimental sensitivity to oscillations, based on a shape-only
analysis of the $L/E$ distribution, will extend an order of magnitude beyond
present experimental limits in the relevant high-$\Delta m^2$ parameter space.
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