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1. Constraints on additional Z bosons derived from neutrino-electron scattering measurements

Author

J. Vogt, A. G. Cocco, D. De Pedis, P. Strolin, P. Gorbunov, Antonio Ereditato, H. E. Roloff, R. Beyer, Denis Favart, Ramazan Sever, T. Mouthuy, W. Flegel, R. Nahnhauer, H. Grote, Alexandre Rozanov, G. Rädel, G. Fiorillo, A. Staude, C. Foos, G. Zacek, E.A. Grigoriev, V. Khovansky, H. Øverås, D. Macina, E. Knoops, Vincent Lemaitre, K. Hiller, Gaston Wilquet, P. Tolun, Pierre Vilain, E. Di Capua, U. Dore, G. Piredda, B. Saitta, A. Capone, J. Panman, L. Gerland, A. Maslennikov, Baki Akkuş, T. Layda, A. Nathaniel, T. Voss, W. Lippich, A. Frenkel-Rambaldi, K. Winter, V. Palladino, R. Santacesaria, F. Marchetti-Stasi, E. Arik, G. Grégoire, P. F. Loverre, F. W. Büsser, S. Ricciardi, P. Stähelin, V. Zacek, M. Serin-Zeyrek, F. Niebergall, P., Vilain, G., Wilquet, R., Beyer, W., Flegel, H., Grote, T., Mouthuy, H., Overa, J., Panman, A., Rozanov, K., Winter, G., Zacek, V., Zacek, F. W., Busser, C., Foo, L., Gerland, T., Layda, F., Niebergall, G., Radel, P., Stahelin, T., Vo, D., Favart, G., Gregoire, E., Knoop, V., Lemaitre, P., Gorbunov, E., Grigoriev, V., Khovansky, A., Maslennikov, W., Lippich, A., Nathaniel, A., Staude, J., Vogt, A. G., Cocco, A., Ereditato, Fiorillo, Giuliana, F., Marchettistasi, Palladino, Vittorio, P., Strolin, A., Capone, D., Depedi, U., Dore, A., Frenkelrambaldi, P. F., Loverre, D., Macina, G., Piredda, R., Santacesaria, E., Dicapua, S., Ricciardi, B., Saitta, B., Akku, E., Arik, M., Serinzeyrek, R., Sever, P., Tolun, K., Hiller, R., Nahnhauer, and H. E., Roloff

Subjects
GAUGE BOSONS, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Physics::Instrumentation and Detectors, Scattering, High Energy Physics::Phenomenology, Elementary particle, Supersymmetry, Nuclear physics, LIMITS, ELASTIC-SCATTERING, SEARCH, High Energy Physics::Experiment, VECTOR-BOSON, Charm (quantum number), Neutrino, MASSES, DETECTOR, Electron scattering, Particle Physics - Experiment, Boson
Abstract

We report new constraints on the existence of additional Z bosons derived from neutrino-electron scattering data. The analysis is based on data taken by the CHARM II Collaboration during five years of exposure of the detector to the wide band neutrino beam at CERN. The limits on the mass of these new particles are evaluated in the framework of E 6 superstring-inspired theories and Left-Right symmetric models. Limits on the so-called Z 1 are also reported.

Published
1994
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2. Search for νμ → ντ oscillation

Author

V. Palladino, A. Frenkel-Rambaldi, Alexandre Rozanov, G. Zacek, M. Gruwe, E. Di Capua, G. Grégoire, P. F. Loverre, G. Fiorillo, S. Ricciardi, P. Stähelin, V. Zacek, Denis Favart, F. W. Büsser, Antonio Ereditato, T. Layda, S. Buontempo, D. Macina, K. Winter, Antonio Capone, G. Rädel, H. Øverås, A. Maslennikov, F. Niebergall, F. Marchetti-Stasi, R. Santacesaria, K. Hiller, Alfredo G. Cocco, Vincent Lemaitre, L. Gerland, A. Nathaniel, B. Saitta, J. Vogt, W. Flegel, V. Khovansky, H. Grote, W. Lippich, P. Gorbunov, Pierre Vilain, R. Nahnhauer, C. Foos, J. Panman, R. Beyer, A. Staude, G. Piredda, D. De Pedis, P. Strolin, U. Dore, C. Mommaert, E. Grigoriev, T. Mouthuy, E. Knoops, T. Voss, Gaston Wilquet, and H. E. Roloff

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Calorimeter (particle physics), Oscillation, Physics::Instrumentation and Detectors, Detector, Hadron, Elementary particle, lcsh:QC1-999, Nuclear physics, Pion, High Energy Physics::Experiment, Granularity, Neutrino oscillation, lcsh:Physics
Abstract

The fine granularity of the CHARM-II detector has been exploited to search, in the CERN-SPS wide band neutrino beam, for quasi-elastic ντ interactions followed by the decay τ → πντ. Since the sampling thickness of the target calorimeter corresponds to ∼ 1 9 of an interaction length, these events appear in the detector as a single track followed by a hadronic shower. The study of the “single pion” events is used to set limits on the νμ → ντ oscillation parameters. The maximum sensitivity to the mixing angle θ is reached for Δm2 = 50 eV2 allowing to exclude values of sin22θ greater than 6.4 × 10−3 at 90% CL.

Published
1993

3. Experimental search for muonic photons

Author

A. Nathaniel, W. Lippich, R. Santacesaria, E.A. Grigoriev, T. Voss, S. Ricciardi, Pierre Vilain, H. E. Roloff, M. Serin-Zeyrek, P. Stähelin, W. Flegel, V. Zacek, J. Vogt, G. Grégoire, F. W. Büsser, V. A. Ilyin, F. Niebergall, D. De Pedis, Antonio Capone, Denis Favart, G. Zacek, P. Gorbunov, A. Staude, D. Macina, Gaston Wilquet, P. Tolun, Ramazan Sever, G. Piredda, G. Rädel, T. Layda, H. Øverås, Vincent Lemaitre, K. Hiller, C. Foos, E. Arik, V. Palladino, K. Winter, Lev B Okun, R. Beyer, P. F. Loverre, Antonio Ereditato, T. Mouthuy, J. Panman, B. Saitta, R. Nahnhauer, Alfredo G. Cocco, E. Knoops, A. Maslennikov, U. Dore, V. Khovansky, F. Marchetti-Stasi, E. Di Capua, P. Strolin, A. Frenkel-Rambaldi, Alexandre Rozanov, G. Fiorillo, L. Gerland, Baki Akkuş, B., Akku, E., Arik, R., Beyer, F. W., Busser, A., Capone, A. G., Cocco, D. D., Pedi, E. D., Capua, U., Dore, A., Ereditato, D., Favart, Fiorillo, Giuliana, W., Flegel, C., Foo, A., Frenkel Rambaldi, L., Gerland, P., Gorbunov, G., Gregoire, E., Grigoriev, K., Hiller, V., Ilyin, V., Khovansky, E., Knoop, T., Layda, V., Lemaitre, W., Lippich, P. F., Loverre, D., Macina, F., Marchetti Stasi, A., Maslennikov, T., Mouthuy, R., Nahnhauer, A., Nathaniel, F., Niebergall, L., Okun, H., Overa, Palladino, Vittorio, J., Panman, G., Piredda, G., Radel, S., Ricciardi, H., Roloff, A., Rozanov, B., Saitta, R., Santacesaria, M., Serin Zeyrek, R., Sever, P., Stahelin, A., Staude, P., Strolin, P., Tolun, P., Vilain, J., Vogt, T., Vo, G., Wilquet, K., Winter, G., Zacek, and V., Zacek

Subjects
Physics, Coupling constant, Nuclear and High Energy Physics, Particle physics, Photon, Large Hadron Collider, Muon, Anomalous magnetic dipole moment, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Nuclear physics, Muon neutrino, High Energy Physics::Experiment, Charm (quantum number), Neutrino, DETECTOR, Particle Physics - Experiment
Abstract

We report new limits on the production of muonic photons in the CERN neutrino beam. The results are based on the analysis of neutrino production of dimuons in the CHARM II detector. A 90% CL limit on the coupling constant of muonic photons, alpha(mu)/alpha(

Published
1998

4. Search For Muon To Electron Neutrino Oscillations

Author

J. Vogt, W. Flegel, T. Mouthuy, P. Gorbunov, F. Marchetti-Stasi, A. Staude, Ramazan Sever, C. Foos, Antonio Capone, Alfredo G. Cocco, Pierre Vilain, E. Knoops, U. Dore, R. Nahnhauer, A. Frenkel-Rambaldi, Alexandre Rozanov, G. Piredda, D. De Pedis, Gaston Wilquet, B. Saitta, T. Voss, G. Rädel, G. Grégoire, P. F. Loverre, Denis Favart, P. Tolun, G. Fiorillo, H. Øverås, F. W. Büsser, Baki Akkuş, Antonio Ereditato, A. Nathaniel, D. Macina, P. Strolin, E. Di Capua, R. Santacesaria, Vincent Lemaitre, E.A. Grigoriev, W. Lippich, H. E. Roloff, K. Hiller, K. Winter, M. Serin-Zeyrek, V. Palladino, A. Maslennikov, E. Arik, R. Beyer, F. Niebergall, V. Khovansky, L. Gerland, T. Layda, J. Panman, S. Ricciardi, P. Stähelin, V. Zacek, Mehmet Zeyrek, G. Zacek, P., Vilain, G., Wilquet, R., Beyer, W., Flegel, T., Mouthuy, H., Overa, J., Panman, A., Rozanov, K., Winter, G., Zacek, V., Zacek, F. W., Busser, C., Foo, L., Gerland, T., Layda, F., Niebergall, G., Radel, P., Stahelin, T., Vo, D., Favart, G., Gregoire, E., Knoop, V., Lemaitre, P., Gorbunov, E., Grigoriev, V., Khovansky, A., Maslennikov, W., Lippich, A., Nathaniel, A., Staude, J., Vogt, A. G., Cocco, A., Ereditato, Fiorillo, Giuliana, F., Marchettistasi, Palladino, Vittorio, P., Strolin, A., Capone, D., Depedi, U., Dore, A., Frenkelrambaldi, P. F., Loverre, D., Macina, G., Piredda, R., Santacesaria, E., Dicapua, S., Ricciardi, B., Saitta, B., Akku, E., Arik, M., Serinzeyrek, R., Sever, P., Tolun, M. T., Zeyrek, K., Hiller, R., Nahnhauer, and H. E., Roloff

Subjects
Physics, Particle physics, Muon, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Flux, Nuclear physics, SCATTERING, High Energy Physics::Experiment, Charm (quantum number), Neutrino, Neutrino oscillation, Engineering (miscellaneous), Electron neutrino, DETECTOR, Particle Physics - Experiment, Charged current, Bar (unit)
Abstract

A search for upsilon(mu) --> upsilon(e) and ($) over bar upsilon(mu) --> ($) over bar upsilon(e) oscillations has been carried out with the CHARM LI detector exposed to the CERN wide band neutrino beam. The data were collected over five years, alternating beams mainly composed of muon-neutrinos and muon-antineutrinos. The number of interactions of upsilon(e) and ($) over bar upsilon(e) observed is comparable with the number of events expected from flux calculations. For large squared mass differences the upper limits obtained on the mixing angle are sin(2)2 theta < 9.4.10(-3) for upsilon(mu) oscillating to upsilon(e) and sin(2)2 theta < 4.8.10(-3) for ($) over bar upsilon(mu) to ($) over bar upsilon(e) at the 90% confidence level. Combining neutrino and antineutrino data the upper limit is 5.6.10(-3).

Published
1994

5. Neutral Current Coupling-constants From Neutrino-electron Scattering

Author

Ramazan Sever, Baki Akkuş, A. Maslennikov, T. Mouthuy, A. Staude, E. Knoops, G. Zacek, T. Layda, L. Gerland, P. Strolin, D. De Pedis, R. Nahnhauer, Alfredo G. Cocco, S. Ricciardi, G. Rädel, K. Winter, J. Panman, G. Grégoire, P. F. Loverre, M. Caria, F. W. Büsser, Denis Favart, Antonio Capone, P. Stähelin, E. Arik, V. Zacek, V. Palladino, D. Macina, J. Vogt, E.A. Grigoriev, Gaston Wilquet, V. Khovansky, H. Øverås, P. Gorbunov, H. Grote, K. Hiller, G. Piredda, B. Eckart, Antonio Ereditato, C. Foos, E. Di Capua, U. Dore, Vincent Lemaitre, Pierre Vilain, M. Serin-Zeyrek, T. Voss, G. Fiorillo, B. Saitta, F. Niebergall, W. Flegel, A. Nathaniel, W. Lippich, A. Frenkel-Rambaldi, Alexandre Rozanov, R. Beyer, R. Santacesaria, P. Tolun, H. E. Roloff, B., Akku, E., Arik, R., Beyer, F. W., Busser, A., Capone, M., Caria, A. G., Cocco, D., Depedi, E., Dicapua, U., Dore, B., Eckart, A., Ereditato, D., Favart, Fiorillo, Giuliana, W., Flegel, C., Foo, A., Frenkelrambaldi, L., Gerland, P., Gorbunov, G., Gregoire, E., Grigoriev, H., Grote, K., Hiller, V., Khovansky, E., Knoop, T., Layda, V., Lemaitre, W., Lippich, P. F., Loverre, D., Macina, A., Maslennikov, T., Mouthuy, R., Nahnhauer, A., Nathaniel, F., Niebergall, H., Overa, Palladino, Vittorio, J., Panman, G., Piredda, G., Radel, S., Ricciardi, H. E., Roloff, A., Rozanov, B., Saitta, R., Santacesaria, M., Serinzeyrek, R., Sever, P., Stahelin, A., Staude, P., Strolin, P., Tolun, P., Vilain, J., Vogt, T., Vo, G., Wilquet, K., Winter, G., Zacek, and V., Zacek

Subjects
Physics, Coupling constant, Nuclear and High Energy Physics, Large Hadron Collider, Neutral current, Physics::Instrumentation and Detectors, Scattering, Detector, Weinberg angle, Atomic and Molecular Physics, and Optics, Nuclear physics, ELASTIC-SCATTERING, High Energy Physics::Experiment, Atomic physics, Neutrino, Electron scattering
Abstract

We are reporting on a determination of neutral current coupling constants from a study of differential cross sections of muon-(anti)neutrino electron scattering. The results were obtained with the CHARM-II detector which was exposed to the CERN wide band neutrino beam in the years 1987 to 1991. A total of about 3000 ve and 3000 v e scattering events were observed. We present a preliminary value of sin2φw determined with the ratio of neutrino and antineutrino electron scattering cross-sections, based on the full data sample, and we give a determination of the effective vector and axial-vector neutral current coupling constants and the first measurement of the shape of the y-distributions based on 80% of the total statistics.

Published
1993

6. Coherent single charged pion production by neutrinos

Author

T. Voss, A. Staude, R. Beyer, R. Santacesaria, E.A. Grigoriev, D. De Pedis, J. Panman, E. Arik, T. Mouthuy, K. Winter, B. Saitta, A. Maslennikov, Pierre Vilain, R. Nahnhauer, L. Gerland, S. Ricciardi, F. Marchetti-Stasi, G. Rädel, P. Stähelin, C. Foos, A. G. Cocco, G. Fiorillo, Antonio Capone, G. Piredda, Denis Favart, V. Palladino, V. Zacek, D. Macina, M. Serin-Zeyrek, J. Vogt, E. Knoops, P. Strolin, A. Frenkel-Rambaldi, Baki Akkuş, Alexandre Rozanov, A. Nathaniel, G. Grégoire, P. F. Loverre, P. Gorbunov, F. W. Büsser, F. Niebergall, W. Lippich, V. Khovansky, E. Di Capua, T. Layda, U. Dore, H. Øverås, K. Hiller, G. Zacek, Vincent Lemaitre, W. Flegel, H. Grote, H. E. Roloff, Gaston Wilquet, P. Tolun, Ramazan Sever, Antonio Ereditato, P., Vilain, G., Wilquet, R., Beyer, W., Flegel, H., Grote, T., Mouthuy, H., Overa, J., Panman, A., Rozanov, K., Winter, G., Zacek, V., Zacek, F. W., Busser, C., Foo, L., Gerland, T., Layda, F., Niebergall, G., Radel, P., Stahelin, T., Vo, D., Favart, G., Gregoire, E., Knoop, V., Lemaitre, P., Gorbunov, E., Grigoriev, V., Khovansky, A., Maslennikov, W., Lippich, A., Nathaniel, A., Staude, J., Vogt, A. G., Cocco, A., Ereditato, Fiorillo, Giuliana, F., Marchettistasi, Palladino, Vittorio, P., Strolin, A., Capone, D., Depedi, U., Dore, A., Frenkelrambaldi, P. F., Loverre, D., Macina, G., Piredda, R., Santacesaria, E., Dicapua, S., Ricciardi, B., Saitta, B., Akku, E., Arik, M., Serinzeyrek, R., Sever, P., Tolun, K., Hiller, R., Nahnhauer, and H. E., Roloff

Subjects
PI-0 PRODUCTION, Physics, Nuclear and High Energy Physics, Particle physics, ELECTRON SCATTERING, NUCLEI, Physics::Instrumentation and Detectors, Scattering, High Energy Physics::Phenomenology, Detector, MESONS, PI+, lcsh:QC1-999, Charged particle, Nuclear physics, Pion, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Phenomenology (particle physics), lcsh:Physics, Particle Physics - Experiment
Abstract

We report on a measurement of coherent single charged pion production in neutrino-nucleus scattering. The analysis is based on data taken with the CHARM II detector in beams of muon-neutrinos and -antineutrinos. The event numbers amount to N(μ−π) = 748 and N(μ+π) = 631. Cross sections and their dependence on the neutrino energy are determined. The results are in agreement with the predictions of models based on the PCAC hypothesis.

Published
1993

7. Calibration and performance of the CHARM-II detector

Author

R. Santacesaria, E.A. Grigoriev, A. Maslennikov, D. De Pedis, A. Staude, Pierre Vilain, D. Zanello, T. Mouthuy, J. Vogt, S. Mennella, P. Paolucci, H. Øverås, Antonio Ereditato, R. Beyer, Denis Favart, A. Tadsen, D. Macina, P. Gorbunov, G. Grégoire, P. F. Loverre, F. W. Büsser, G. Zacek, U. Dore, A. Nathaniel, D. Geiregat, H. Neumeyer, V. Palladino, T. Layda, V. Khovansky, A. G. Cocco, W. Lippich, P. Stähelin, H. Burkard, V. Zacek, A. Frenkel-Rambaldi, E. Knoops, Alexandre Rozanov, E. Di Capua, C. Foos, L. Gerland, G. Rädel, T. Voss, K. Winter, G. Piredda, U. Binder, F. Niebergall, P. Strolin, M. Caria, H. Grote, Vincent Lemaitre, G. Fiorillo, W. Flegel, Antonio Capone, B. Eckart, Gaston Wilquet, C. Cicalo, J. Panman, D., Geiregat, P., Vilain, G., Wilquet, U., Binder, H., Burkard, W., Flegel, H., Grote, T., Mouthuy, H., Overa, J., Panman, A., Rozanov, K., Winter, G., Zacek, V., Zacek, R., Beyer, F. W., Busser, C., Foo, L., Gerland, T., Layda, F., Niebergall, G., Radel, P., Stahelin, A., Tadsen, T., Vo, D., Favart, G., Gregoire, E., Knoop, V., Lemaitre, P., Gorbunov, E., Grigoriev, V., Khovansky, A., Maslennikov, W., Lippich, A., Nathaniel, H., Neumeyer, A., Staude, J., Vogt, M., Caria, C., Cicalo, B., Eckart, A. G., Cocco, A., Ereditato, Fiorillo, Giuliana, S., Mennella, Palladino, Vittorio, P., Paolucci, P., Strolin, A., Capone, D., Depedi, E., Dicapua, U., Dore, A., Frenkelrambaldi, P. F., Loverre, D., Macina, G., Piredda, R., Santacesaria, and D., Zanello

Subjects
Physics, Nuclear and High Energy Physics, NEUTRINO-ELECTRON-SCATTERING, Large Hadron Collider, Muon, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Detector, Electron, Nuclear physics, Pion, Neutrino detector, Physics::Accelerator Physics, High Energy Physics::Experiment, Charm (quantum number), CALORIMETER, Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation
Abstract

The neutrino detector CHARM-II at CERN, consisting of a large target calorimeter equipped with streamer tubes and a muon spectrometer, has been exposed to a test beam of electrons, pions and muons with momenta between 2 and 60 GeV/c in order to study the digital response of the streamer tubes, the analog response of the pickup strips and the momentum resolution of the muon spectrometer. Methods have been developed to carry the calibration results in space from the impact point of the test beam to the bulk of the detector and in time from the test beam period to all the data taking periods between 1987 and 1991, The number of hits along muon tracks was used to parametrize the dependence on fluctuations of temperature, tube voltage and gas composition. Curves and formulae are presented showing the energy response and the energy resolution for the different beam particles. The test beam data have been used to optimize and calibrate algorithms for the kinematical reconstruction of electron showers and for their extraction from the vast background of hadronic showers.

Published
1993

8. Measurement of Differential Cross-sections For Muon-neutrino Electron-scattering

Author

Alexandre Rozanov, R. Santacesaria, G. Fiorillo, U. Dore, H. Øverås, W. Flegel, Pierre Vilain, L. Gerland, V.D. Khovansky, E.A. Grigoriev, V. Palladino, D. De Pedis, T. Layda, J. Panman, H. Grote, P. Strolin, F. Marchetti-Stasi, A. Nathaniel, A. G. Cocco, G. Piredda, A. Staude, Denis Favart, W. Lippich, F. Niebergall, E. Di Capua, C. Foos, D. Macina, Vincent Lemaitre, E. Knoops, P. Stähelin, V. Zacek, Gaston Wilquet, T. Mouthuy, G. Zacek, K. Winter, Antonio Ereditato, G. Grégoire, P. F. Loverre, F. W. Büsser, A. Capone, A. Maslennikov, G. Rädel, J. Vogt, T. Voss, P. Gorbunov, A. Frenkel-Rambaldi, R. Beyer, P., Vilain, G., Wilquet, R., Beyer, W., Flegel, H., Grote, T., Mouthuy, H., Overa, J., Panman, A., Rozanov, K., Winter, G., Zacek, V., Zacek, F. W., Busser, C., Foo, L., Gerland, T., Layda, F., Niebergall, G., Radel, P., Stahelin, T., Vo, D., Favart, G., Gregoire, E., Knoop, V., Lemaitre, P., Gorbunov, E., Grigoriev, V., Khovansky, A., Maslennikov, W., Lippich, A., Nathaniel, A., Staude, J., Vogt, A. G., Cocco, A., Ereditato, Fiorillo, Giuliana, F., Marchettistasi, Palladino, Vittorio, P., Strolin, A., Capone, D., Depedi, E., Dicapua, U., Dore, A., Frenkelrambaldi, P. F., Loverre, D., Macina, G., Piredda, and R., Santacesaria

Subjects
Physics, Coupling constant, Scattering cross-section, Nuclear and High Energy Physics, Particle physics, Detector, Neutrino beam, Nuclear physics, High Energy Physics::Experiment, Muon neutrino, Charm (quantum number), Nuclear Experiment, Electron scattering, Particle Physics - Experiment, Differential (mathematics)
Abstract

We report on a study of the differential cross section dσ/dy for the processes of elastic νμ- and ν μ - electron scattering. The data on which this analysis is based were recorded between 1987 and 1990 with the CHARM II detector in the wide band neutrino beam at the CERN-SPS. For the first time the shapes of these y-distributions have been determined in a model-independent way. A fit to the data yields for the squares of the neutral coupling constants the ratio gR2/gL2=0.60 ± 0.19 (stat.) ± 0.09 (syst.).

Published
1993

9. Test results of the streamer-tube system of the CHARM II neutrino detector

Author

J. P. DEWULF, D. GEIREGAT, P. VILAIN, F. BERGSMA, C. BUSI, A. CAPONE, T. DELBAR, D. DEPEDIS, A. EREDITATO, W. FLEGEL, B. FRIEND, W. D. GLESSING, H. GROTE, A. KING, G. LEBEE, C. NIEUWENHUIS, J. PANMAN, A. SEIDEN, K. WINTER, V. ZACEK, T. BAUCHE, F. W. BUSSER, L. GERLAND, F. NIEBERGALL, H. RIEGE, J. SCHUTT, P. STAHELIN, A. TADSEN, J. L. DOUMONT, G. GREGOIRE, T. MOUTHUY, P. GORBUNOV, E. A. GRIGORIEV, V. JEMANOV, V. D. KHOVANSKY, M. KUBANTSEV, A. ROSANOV, D. BRAUN, H. HERBERT, W. LIPPICH, A. STAUDE, M. CARIA, C. GATTO, F. GRANCAGNOLO, R. IASEVOLI, V. PALLADINO, P. PARASCANDOLO, P. STROLIN, G. BASTI, E. DICAPUA, U. DORE, S. GUERRA, P. F. LOVERRE, G. PIREDDA, R. SANTACESARIA, D. ZANELLO, GORINI, Edoardo, J. P., Dewulf, D., Geiregat, P., Vilain, F., Bergsma, C., Busi, A., Capone, T., Delbar, D., Depedi, A., Ereditato, W., Flegel, B., Friend, W. D., Glessing, H., Grote, A., King, G., Lebee, C., Nieuwenhui, J., Panman, A., Seiden, K., Winter, V., Zacek, T., Bauche, F. W., Busser, L., Gerland, F., Niebergall, H., Riege, J., Schutt, P., Stahelin, A., Tadsen, J. L., Doumont, G., Gregoire, T., Mouthuy, P., Gorbunov, E. A., Grigoriev, V., Jemanov, V. D., Khovansky, M., Kubantsev, A., Rosanov, D., Braun, Gorini, Edoardo, H., Herbert, W., Lippich, A., Staude, M., Caria, C., Gatto, F., Grancagnolo, R., Iasevoli, V., Palladino, P., Parascandolo, P., Strolin, G., Basti, E., Dicapua, U., Dore, S., Guerra, P. F., Loverre, G., Piredda, R., Santacesaria, and D., Zanello

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, business.industry, Detector, Particle detector, Anode, Calorimeter, Nuclear physics, Optics, Neutrino detector, High Energy Physics::Experiment, Charm (quantum number), Electronics, Detectors and Experimental Techniques, business, Instrumentation, Electronic circuit
Abstract

The CHARM II Collaboration is building a massive, fine-grained and low-density detector for the study of neutrino-electron scattering. Its target calorimeter consists of 441 detector planes with 155 232 plastic streamer tubes with digital readout of the wires and analog readout of external pickup strips. At the time of this report, about 25% of the calorimeter planes were equipped with electronics. Results on the performance of these tubes are presented as obtained with cosmic-rays and with electron and pion beams. We have also investigated the use of water vapour as an additive to the gas to suppress coating of the anode wires. The use of water would be of particular importance when using the tubes in a high-rate environment.

Published
1986
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10. Experimental results obtained from a low-Z, fine-grained electromagnetic calorimeter

Author

A. Rosanov, F. Grancagnolo, E. Knoops, R. Santacesaria, E.A. Grigoriev, B. Emsens, T. Delbar, T. Mouthuy, A. Capone, E. Di Capua, C. Foos, Pierre Vilain, D. De Pedis, D. Zanello, P. Strolin, R. Beyer, L. Gerland, H. Øverås, G. Zacek, A. Tadsen, P. Stähelin, H. Burkard, V. Zacek, Antonio Ereditato, A. Staude, A. Nathaniel, W. Flegel, W. Lippich, U. Binder, T. Bauche, K. de Winter, E. Gorini, P. Gorbunov, F. Niebergall, V. Palladino, P. F. Loverre, F. W. Büsser, A. Maslennikov, D. Favart, Volker Blobel, V. Khovansky, J. Panman, Gaston Wilquet, G. Grégoire, H. Grote, A. Rambaldi-Frenkel, M. Caria, G. Piredda, U. Dore, D. Geiregat, C. Nieuwenhuis, F. Bergsma, R. Iasevoli, K. Winter, K., Dewinter, D., Geiregat, P., Vilain, G., Wilquet, F., Bergsma, U., Binder, H., Burkard, A., Capone, A., Ereditato, W., Flegel, H., Grote, C., Nieuwenhui, H., Overa, V., Palladino, J., Panman, G., Piredda, K., Winter, G., Zacek, V., Zacek, T., Bauche, R., Beyer, V., Blobel, F. W., Busser, C., Foo, L., Gerland, F., Niebergall, P., Stahelin, A., Tadsen, T., Delbar, B., Emsen, D., Favart, G., Gregoire, E., Knoop, T., Mouthuy, P., Gorbunov, E., Grigoriev, V., Khovansky, A., Maslennikov, A., Rosanov, W., Lippich, A., Nathaniel, A., Staude, M., Caria, Gorini, Edoardo, F., Grancagnolo, R., Iasevoli, P., Strolin, D., Depedi, E., Dicapua, U., Dore, P. F., Loverre, A., Rambaldifrenkel, R., Santacesaria, and D., Zanello

Subjects
Physics, Nuclear and High Energy Physics, Large Hadron Collider, Calorimeter (particle physics), Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Detector, Electron, Nuclear physics, Pion, Scintillation counter, High Energy Physics::Experiment, Angular resolution, Neutrino, Detectors and Experimental Techniques, Nuclear Experiment, Instrumentation
Abstract

We report on experimental results obtained with the neutrino target calorimeter of the CHARM II detector. The experiment is being performed at CERN and its aim is to measure sin2θw, the electroweak mixing parameter, via the study of neutrino-electron scattering. The detector, installed on the SPS neutrino wide-band beam line, consists of a glass calorimeter instrumented with plastic streamer tubes and scintillation counters, and of a muon spectrometer. The performance of the calorimeter has been explored during a test run with electron and pion beams. Results concerning the detector response, the energy and angular resolution, and the e π separation are presented here.

Published
1988

11. TEST-RESULTS AND CONDITIONING PROCEDURE OF A LIMITED STREAMER-TUBE CALORIMETER

Author

A. Tadsen, M. Kubantsev, E. Gorini, M. Caria, B. Friend, D. Braun, Antonio Ereditato, P. Parascandolo, F. Niebergall, V. Jemanov, T. Delbar, W. Lippich, S. Guerra, V. Zacek, G. Piredda, Alistair King, E. Di Capua, H. Riege, D. De Pedis, D. Zanello, G. Basti, J. P. Dewulf, A. Rosanov, F. Grancagnolo, K. Winter, V. Khovansky, Pierre Vilain, G. Grégoire, P. F. Loverre, F. W. Büsser, P. Gorbunov, D. Geiregat, G. Lebée, F. Bergsma, C. Busi, J. L. Doumount, V. Palladino, W. Flegel, A. Staude, H. Grote, C. Gatto, P. Stähelin, U. Dore, J. Schütt, R. Santacesaria, J. Panman, T. Mouthuy, L. Gerland, C. Nieuwenhuis, E. Grigoriev, Abraham Seiden, R. Iasevoli, W. Glessing, P. Strolin, T. Bauche, H. Herbert, A. Capone, J. P., Dewulf, D., Geiregat, P., Vilain, F., Bergsma, C., Busi, A., Capone, T., Delbar, D., Depedi, A., Ereditato, W., Flegel, B., Friend, W. D., Glessing, H., Grote, A., King, G., Lebee, C., Nieuwenhui, J., Panman, A., Seiden, K., Winter, V., Zacek, T., Bauche, F. W., Busser, L., Gerland, F., Niebergall, H., Riege, J., Schutt, P., Stahelin, A., Tadsen, J. L., Doumount, G., Gregoire, T., Mouthuy, P., Gorbunov, E. A., Grigoriev, V., Jemanov, V. D., Khovansky, M., Kubantsev, A., Rosanov, D., Braun, H., Herbert, W., Lippich, A., Staude, M., Caria, C., Gatto, Gorini, Edoardo, F., Grancagnolo, R., Iasevoli, V., Palladino, P., Parascandolo, P., Strolin, G., Basti, E., Dicapua, U., Dore, S., Guerra, P. F., Loverre, G., Piredda, R., Santacesaria, and D., Zanello

Subjects
Nuclear physics, Physics, Elastic scattering, Nuclear and High Energy Physics, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Detector, High Energy Physics::Experiment, Tube (fluid conveyance), Charm (quantum number), Electron, Instrumentation, Beam (structure)
Abstract

The CHARM II Collaboration has built a massive, fine-grained calorimeter for the study of the elastic scattering {A figure is presented} short description of the detector will be followed by the presentation of some results obtained by exposing 40 of the 441 planes of the calorimeter to a beam of electrons and pions. Comments will be given about the conditioning procedure followed for the 154560 limited streamer tubes which compose the active part of the calorimeter.

Published
1988

12. Leading-order QCD analysis of neutrino-induced dimuon events

Author

Vilain, P., Wilquet, G., Beyer, R., Flegel, W., Mouthuy, T., Øverås, H., Panman, J., Rozanov, A., Winter, K., Zacek, G., Zacek, V., Büsser, F. W., Foos, C., Gerland, L., Layda, T., Niebergall, F., Rädel, G., Stähelin, P., Voss, T., Favart, D., Grégoire, Gh, Knoops, E., Lemaître, V., Gorbunov, P., Grigoriev, E., Khovansky, V., Maslennikov, A., Lippich, W., Nathaniel, A., Staude, A., Vogt, J., Alfredo Giuseppe Cocco, Ereditato, A., Fiorillo, G., Marchetti-Stasi, F., Palladino, V., Strolin, P., Capone, A., Pedis, D., Dore, U., Frenkel-Rambaldi, A., Loverre, P. F., Macina, D., Piredda, G., Santacesaria, R., Di Capua, E., Ricciardi, S., Saitta, B., Akkus, B., Arik, E., Serin-Zeyrek, M., Sever, R., Tolun, P., Hiller, K., Nahnhauer, R., Roloff, H. E., P., Vilain, G., Wilquet, R., Beyer, W., Flegel, T., Mouthuy, H., Overa, J., Panman, A., Rozanov, K., Winter, G., Zacek, V., Zacek, F. W., Busser, C., Foo, L., Gerland, T., Layda, F., Niebergall, G., Radel, P., Stahelin, T., Vo, D., Favart, G., Gregoire, E., Knoop, V., Lemaitre, P., Gorbunov, E., Grigoriev, V., Khovansky, A., Maslennikov, W., Lippich, A., Nathaniel, A., Staude, J., Vogt, A. G., Cocco, A., Ereditato, Fiorillo, Giuliana, F., Marchetti Stasi, Palladino, Vittorio, P., Strolin, A., Capone, D. D., Pedi, U., Dore, A., Frenkel Rambaldi, P. F., Loverre, D., Macina, G., Piredda, R., Santacesaria, E. D., Capua, S., Ricciardi, B., Saitta, B., Akku, E., Arik, M., Serin Zeyrek, R., Sever, P., Tolun, K., Hiller, R., Nahnhauer, and H. E., Roloff

Subjects
Quark, Physics, Quantum chromodynamics, Strange quark, Particle physics, ELECTROWEAK MIXING ANGLE, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Order (ring theory), PRECISION-MEASUREMENT, CHARGED CURRENT, Charm quark, Nuclear physics, Content (measure theory), SCATTERING, High Energy Physics::Experiment, Production (computer science), HEAVY QUARKS, Charm (quantum number), Nuclear Experiment, DETECTOR, Engineering (miscellaneous), Particle Physics - Experiment
Abstract

The results of a leading-order QCD analysis of neutrino-induced charm production are presented. They are based on a sample of 4111 $\nu_\mu$ - and 871 $\bar \nu_\mu$ -induced opposite-sign dimuon events with $E_{\mu 1},E_{\mu 2} > 6{\rm GeV}$ , $35 < E_{\nu} < 290{\rm GeV}$ and $Q^2> 5.5\,{\rm GeV^2}$ , observed in the CHARM II detector exposed to the CERN wide band neutrino and antineutrino beams. The analysis yields the value of the charm quark mass $m_c=1.79\pm0.38\,{\rm GeV}/c^2$ and the Cabibbo–Kobayashi–Maskawa matrix element $|V_{cd}|=0.219\pm0.016$ . The strange quark content of the nucleon is found to be suppressed with respect to non-strange sea quarks by a factor $\kappa =0.39\pm0.09$ .

Published
1999
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