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7 results on '"B. Pszola"'

1. Prompt neutrino results from a proton beam dump experiment

Author

V. Hepp, Konrad Kleinknecht, W. von Rüden, H. Taureg, Jan Krolikowski, B. Falkenburg, T. Flottmann, P. Perez, Jean-Pierre Merlo, R. W. Williams, R. Turlay, B. Renk, F. Ranjard, Joseph Rothberg, D. Pollmann, H. D. Wahl, P. Berge, John Rander, R. Hagelberg, B. Peyaud, H. Blümer, J. Steinberger, J. De Groot, Claude Guyot, P. Buchholz, R. Belusević, K. Tittel, F. Dydak, P. Debu, F. Eisele, J. P. Schuller, J. Knobloch, C. Geweniger, A. Para, H. Keilwerth, B. Pszola, J. Duda, Jorg Wotschack, and H. Abramowicz

Subjects
Physics, Particle physics, Physics and Astronomy (miscellaneous), Proton, Physics::Instrumentation and Detectors, Branching fraction, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Hadron, Electron, law.invention, Nuclear physics, law, Antimatter, Physics::Accelerator Physics, High Energy Physics::Experiment, Beam dump, Neutrino, Engineering (miscellaneous), Lepton
Abstract

A study of prompt neutrino events from 400 GeV protons on a beam-dump is presented. The ratio of electron- to muon-neutrino rates is 0.86±0.14, in agreement withe−μ universality. The anti-neutrino to neutrino flux ratio is $$\bar v_\mu /v_\mu = 0.81 \pm 0.19$$ . The absolute rates and distributions observed are shown to be in quantitative agreement with the known properties of charmedquark production in hadron collisions.

Published
1992
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2. A measurement of differential cross-sections and nucleon structure functions in charged-current neutrino interactions on iron

Author

H. Taureg, F. Eisele, J. P. Schuller, Jan Krolikowski, Helmut Burkhardt, Holt Meyer, H. Blümer, H. D. Brummel, R. Turlay, R. W. Williams, B. Renk, R. Geiges, F. Ranjard, E. Müller, H. D. Wahl, T. Alvarez, K. Tittel, Konrad Kleinknecht, B. Kampschulte, P. Buchholz, P. Perez, Claude Guyot, R. Belusević, P. Berge, V. Hepp, F. Perrier, A. Para, B. Vallage, B. Pszola, F. Dydak, A. Lipniacka, J. Wotschack, B. Peyaud, Joseph Rothberg, J. Duda, R. Hagelberg, C. Geweniger, J. Knobloch, P. Debu, P. Palazzi, H. Keilwerth, J. Steinberger, Jean-Pierre Merlo, Halina Abramowicz, B. Falkenburg, and Mieczyslaw Witold Krasny

Subjects
Quantum chromodynamics, Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Inelastic scattering, Deep inelastic scattering, Nuclear physics, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Nucleon, Engineering (miscellaneous), Particle Physics - Experiment, Charged current, Lepton
Abstract

A high-statistics measurement of the differential cross-sections for neutrino-iron scattering in the wide-band neutrino beam at the CERN SPS is presented. Nucleon structure functions are extracted and theirQ 2 evolution is compared with the predictions of quantum chromodynamics.

Published
1991
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3. Total neutrino and antineutrino charged current cross section measurements in 100, 160, and 200 GeV narrow band beams

Author

M. Fiedler, John Rander, Joseph Rothberg, P. Palazzi, A. Grant, F. Eisele, N. Kurz, R. Belusević, J. P. Schuller, H. D. Brummel, A. Para, R. Geiges, H. Blümer, R. Turlay, B. Renk, H. D. Wahl, R. Hagelberg, Pablo Rodriguez Perez, J. Duda, P. Berge, B. Vallage, F. Ranjard, P. Debu, H. J. Meyer, H. Wachsmuth, P. Buchholz, F. Dydak, H. Taureg, A. Blondel, E. Müller, J. De Groot, Helmut Burkhardt, B. Pszola, B. Kampschulte, P. Böckmann, V. Hepp, H. Abramowicz, C. Geweniger, Jan Krolikowski, R. W. Williams, C. Guyot, Konrad Kleinknecht, B. Falkenburg, H. Keilwerth, Anna Lipniacka, J. P. Merlo, J. Knobloch, Boleslaw Wyslouch, Mieczyslaw Witold Krasny, Elliot Hughes, K. Tittel, J. Steinberger, J. Wotschack, and F. Perrier

Subjects
Physics, Nuclear reaction, Particle physics, Antiparticle, Muon, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Nuclear physics, Antimatter, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Nucleon, Engineering (miscellaneous), Particle Physics - Experiment, Charged current, Lepton
Abstract

Neutrino and antineutrino total charged current cross sections on iron were measured in the 100, 160, and 200 GeV narrow band beams at the CERN SPS in the energy range 10 to 200 GeV. Assuming σ/E to be constant, the values corrected for non-isoscalarity are σv/E = (0.686 ± 0.019) * 10−38 cm2/ (GeV · nucleon) and σv/E = (0.339 ± 0.010) * 10−38 cm2/ (GeV·nucleon). Between 50 and 150 GeV no energy dependence of σ/E was observed within ±3% for neutrino and ±4% for antineutrino interactions.

Published
1987
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4. Measurement of neutrino and antineutrino structure functions in hydrogen and iron

Author

A. Para, T. Flottmann, V. Hepp, B. Pszola, Claude Guyot, F. Eisele, C. Geweniger, A. Savoy-Navarro, H. Taureg, H. Lierl, R. Turlay, P. Palazzi, H. D. Wahl, Jp Schuller, B. Peyaud, B. Renk, F. Ranjard, J. May, F. Dydak, P. Perez, J. Królikowski, P. Debu, J. Knobloch, K. Tittel, H. Blümer, Jorg Wotschack, J. Steinberger, J. De Groot, P. Buchholz, Konrad Kleinknecht, John Rander, G. Hansl-Kozanecki, J. Duda, Halina Abramowicz, S. Whitaker, D. Schlatter, W. von Rüden, and Jean-Pierre Merlo

Subjects
Quark, Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Hydrogen, chemistry.chemical_element, Parton, Nuclear physics, Neutrino detector, chemistry, High Energy Physics::Experiment, Neutrino, Engineering (miscellaneous), Particle Physics - Experiment, Liquid hydrogen, Lepton
Abstract

The CDHS neutrino detector has been used to measure events originating in a tank of liquid hydrogen and in the iron of the detector. Total cross-sections, differential cross-sections, and structure functions are given for hydrogen and compared with those in iron. The measurements are in agreement with the expectations of the quark parton model. No significant differences indicative of nuclear binding effects in corresponding structure functions of protons and iron are observed. This may be of special interest in the case of the sea structure functions, since large differences are expected in some models.

Published
1984
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5. A search for νμ oscillations in the Δm2 range 0.3–90 eV2

Author

J. P. Schuller, B. Pszola, P. Perez, J. Steinberger, J. Wotschack, F. Eisele, A. Para, H. Taureg, H. Abramowicz, John Rander, H. Wachsmuth, P. Debu, T. Flottmann, Joseph Rothberg, Holt Meyer, R. Turlay, H. Blümer, J. Duda, H. D. Wahl, Jean-Pierre Merlo, H. Keilwerth, J. De Groot, K. Tittel, Konrad Kleinknecht, Jan Krolikowski, G.J. Feldman, W. von Rüden, B. Falkenburg, C. Geweniger, Peter Buchholz, B. Renk, J. Knobloch, F. Dydak, B. Peyaud, Claude Guyot, and R. Belusević

Subjects
Massless particle, Nuclear reaction, Nuclear physics, Physics, Nuclear and High Energy Physics, Particle physics, Muon, Proton, Elementary particle, Neutrino, Neutrino oscillation, Lepton
Abstract

We have searched for ν μ oscillations by comparing the rates of ν gm charged-current interactions in two detectors located 130 and 885 m from the target, which was struck by a 9.2 GeV/ c proton beam from the CERN Proton Synchroton. No evidence for ν μ oscillations was found. At the 90% confidence level, Δm 2 values between 0.26 and 90 eV 2 are excluded for maximal mixing. The most restrictive limit on the neutrino mixing-angle parameter sin 2 2 θ is 0.053 at Δm 2 =2.5 eV 2 .

Published
1984
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6. Are there 'prompt' like-sign dimuons?

Author

J. Krolikowski, T. Ruan, R. Hagelberg, R. Geiges, F. Dydak, C. Geweniger, H. D. Wahl, T. Flottmann, J. May, H. D. Brummel, R. Turlay, H. Abramowicz, K. Tittel, Konrad Kleinknecht, John Rander, H. Burkhardt, D. Schlatter, P. Palazzi, W. M. Wu, H. Taureg, P. Debu, H. Blümer, Mieczyslaw Witold Krasny, V. Hepp, P. Perez, J. Knobloch, B. Kampschulte, J. G. H. DeGroot, B. Pszola, R. Belusević, P. Buchholz, E. Müller, F. Eisele, B. Vallage, C. Guyot, A. Para, H. J. Meyer, J. P. Merlo, B. Renk, B. Falkenburg, F. Ranjard, B. Peyaud, Jp Schuller, J. Duda, Joseph Rothberg, K. Schmitz, F. Perrier, Jorg Wotschack, S. Loucatos, J. Steinberger, J. H. He, and H. Keilwerth

Subjects
Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Branching fraction, Perturbative QCD, Nuclear physics, Pair production, Antimatter, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Charged current, Lepton
Abstract

From exposures of the CDHS detector at the CERN SPS we have obtained 367μ + μ − events in neutrino beams and 73μ + μ + events in an antineutrino beam. The magnitude of a prompt like-sign signal has been controversial in the past and moreover could not be explained by known production mechanisms. A critical discussion of the experimental situation is given. We have tried to reduce the systematic uncertainties of previous experiments and to get more information on the dependence of the signal with energy and the muon momentum cut-off. This experiment yields a signal of 2.8σ (2.4σ) of prompt like-sign dimuon events in the case of neutrinos (antineutrinos). The rate to charged current events is of the order of 10−4 forp μ 100 GeV. The prompt signal has all the properties expected from the production and decay of charm-anticharm events. The magnitude, however, is substantially higher then the prediction of perturbative QCD but lower than some other experiments.

Published
1986
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7. Limit on right handed weak coupling parameters from inelastic neutrino interactions

Author

J. Steinberger, H. Taureg, John Rander, W Vonruden, Jt He, Jp Schuller, Hp Klasen, T. Flottmann, P. Buchholz, F. Dydak, R. Turlay, B. Pszola, Wm Wu, Jean-Pierre Merlo, J. Knobloch, F. Eisele, H. D. Wahl, B. Peyaud, J. Królikowski, Hj Willutzki, Konrad Kleinknecht, P. Palazzi, Jorg Wotschack, C. Geweniger, Joseph Rothberg, Claude Guyot, J. May, A. Para, Wd Schlatter, B. Renk, F. Ranjard, Halina Abramowicz, Jgh Degroot, K. Tittel, and Tz Ruan

Subjects
Quark, Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Scattering, High Energy Physics::Phenomenology, Sigma, Coupling (probability), High Energy Physics::Experiment, Neutrino, Engineering (miscellaneous), Mixing (physics), Particle Physics - Experiment, Lepton
Abstract

Right handed weak quark currents coupled to the usual left handed weak lepton current would be seen in inclusive antineutrino scattering on nuclei as a contribution at largey with the quark (not antiquark) structure function. We do not see such a term, and can therefore put an upper limit on the relative strengths of such right handed currents:\(\varrho ^2 = \frac{{\sigma _R }}{{\sigma _L }}< 0.009\), 90% confidence. This measurement puts limits on the mixing angle of left-right symmetric models. In distinction to similar limits derived from muon decay or β decay, our limits are also valid if the right handed neutrino is heavy.

Published
1981

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