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11 results on '"Tadsen, A."'

1. A new measurement of the elastic cross section at very low energy

Author

Carlo Broggini, Z. Daraktchieva, C. Cerna, Claude Amsler, G. Gervasio, J Lamblin, A. Stutz, G. Puglierin, J.-L. Vuilleumier, D. Lebrun, O. Link, P Jeanneret, J. Busto, M. Avenier, A. Tadsen, G Jonkmans, D.H. Koang, and F. Ould-Saada

Subjects
Physics, Nuclear and High Energy Physics, Time projection chamber, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Solar neutrino, Detector, Electron, Nuclear reactor, 7. Clean energy, 01 natural sciences, law.invention, Core (optical fiber), Nuclear physics, Cross section (physics), law, 0103 physical sciences, 010306 general physics, Energy (signal processing)
Abstract

We have built a low background detector, a time projection chamber surrounded by an active anti-Compton, to measure the ν e e − elastic cross section down to the antineutrino energy of 900 keV. With our detector, running at 18 m from the core of a nuclear reactor in Bugey, we could detect reactor antineutrinos by measuring both the energy and the direction of the recoiling electrons. We report here on a first analysis of the data using an automatic scanning procedure. The results we obtain are 1.5σ higher than the ones predicted by the standard model.

Published
2002
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2. Search for ββ decay in 136Xe: new results from the Gotthard experiment

Author

J. Busto, A. Tadsen, F. Boehm, V. Jörgens, H. Henrikson, K. Lou, A. Paic, R. Luescher, M. Treichel, K. Gabathuler, J. Farine, J.-L. Vuilleumier, G. Gervasio, D. Schenker, J. M. Vuilleumier, and Henry T. Wong

Subjects
Physics, Nuclear physics, Nuclear and High Energy Physics, Double beta decay, Alpha-particle spectroscopy, Coincidence, Lower limit
Abstract

The Gotthard Xe experiment has taken an additional 6013 hours of data with an upgraded readout system. Lower limits for the half-life of the double beta decay in 136 Xe are T 1/2 0 ν >4.4×10 23 yr (including 6830 hours taken in an earlier phase), T 1/2 0 νχ 0 >0.72×10 22 yr and T 1/2 2 ν >3.6×10 20 yr at 90% confidence level. Alpha spectroscopy, as well as βα and αα coincidence techniques lead to a determination of the activity of the gas of 10 −12 g/g effective of 232 Th and 238 U. Evaluations of background strongly suggest that an appreciable fraction of the ββ -candidates comes from the allowed 2 ν decay.

Published
1998
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3. A new measurement of the cross section of the inverse muon decay reaction νμ + e− → μ− + νe

Author

Geiregat, D., Vilain, P., Wilquet, G., Bergsma, F., Binder, U., Burkard, H., Eisenberg, Y., Flegel, W., Grote, H., Mouthuy, T., Øveras, H., Panman, J., Santacesaria, R., Winter, K., Zacek, G., Zacek, V., Beyer, R., Blobel, V., Büsser, F. W., Foos, C., Gerland, L., Layda, T., Niebergall, F., Raëdel, G., Stahëlin, P., Tadsen, A., Voss, T., Delbar, T., Favart, D., Gregoire, G., Knoops, E., Gorbunov, P., Grigoriev, E., Khovansky, V., Maslennikov, A., Rosanov, A., Lippich, W., Nathaniel, A., Staude, A., Caria, M., Eckart, B., Ereditato, A., Gorini, E., Grancagnolo, F., Iasevoli, R., Palladino, V., Strolin, P., Capone, Antonio, DE PEDIS, D., DI CAPUA, E., Dore, Ubaldo, Loverre, Pier Ferruccio, RAMBALDI FRENKEL, A., Piredda, G., and Zanello, D.

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Large Hadron Collider, Physics::Instrumentation and Detectors, Electron, Standard Model, Nuclear physics, Cross section (physics), High Energy Physics::Experiment, Charm (quantum number), Neutrino, Particle Physics - Experiment, Beam (structure)
Abstract

We have measured the cross section for inverse muon decay in the CERN neutrino wide band beam. From 4808 events observed in the CHARM II detector we derived for the Born term of the asymptotic cross section slope the result (18.16±1.36) × 10 −42 cm 2 GeV −1 . This cross section is in good agreement with the standard model prediction and allows to constrain the scalar coupling of the electron and muon to their neutrinos to | g LL S | 2

Published
1990
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4. First observation of neutrino trident production

Author

Geiregat, D., Vilain, P., Wilquet, G., Bergsma, F., Binder, U., Burkard, H., Eisenberg, Y., Flegel, W., Grote, H., Mouthuy, T., Øveras, H., Panman, J., Santacesaria, R., Winter, K., Zacek, G., Zacek, V., Beyer, R., Blobel, V., Büsser, F. W., Foos, C., Gerland, L., Layda, T., Niebergall, F., Raëdel, G., Stahëlin, P., Tadsen, A., Voss, T., Delbar, T., Favart, D., Gregoire, G., Knoops, E., Gorbunov, P., Grigoriev, E., Khovansky, V., Maslennikov, A., Rosanov, A., Lippich, W., Nathaniel, A., Staude, A., Caria, M., Eckart, B., Ereditato, A., Gorini, E., Grancagnolo, F., Iasevoli, R., Palladino, V., Strolin, P., Capone, Antonio, DE PEDIS, D., DI CAPUA, E., Dore, Ubaldo, Loverre, Pier Ferruccio, RAMBALDI FRENKEL, A., Piredda, G., and Zanello, D.

Subjects
Electromagnetic field, Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Muon, Physics::Instrumentation and Detectors, Detector, Nuclear physics, Recoil, High Energy Physics::Experiment, Neutrino, Nuclear Experiment, Particle Physics - Experiment
Abstract

We report on the first observation of neutrino induced production of muon pairs in the electromagnetic field of a nucleus. The data has been obtained using the CHARM II detector exposed to the CERN wideband neutrino and antineutrino beams. A clear signal of 55 ± 16 events is seen in a sample of dimuons of opposite charge without visible recoil at the vertex. The cross section is determined and found to be in agreement with the standard model prediction.

Published
1990
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5. Final results on the neutrino magnetic moment from the MUNU experiment

Author

Daraktchieva, Z., primary, Amsler, C., additional, Avenier, M., additional, Broggini, C., additional, Busto, J., additional, Cerna, C., additional, Juget, F., additional, Koang, D.H., additional, Lamblin, J., additional, Lebrun, D., additional, Link, O., additional, Puglierin, G., additional, Stutz, A., additional, Tadsen, A., additional, Vuilleumier, J.-L., additional, and Zacek, V., additional

Published
2005
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6. Limits on the neutrino magnetic moment from the MUNU experiment

Author

Daraktchieva, Z, primary, Lamblin, J, additional, Link, O, additional, Amsler, C, additional, Avenier, M, additional, Broggini, C, additional, Busto, J, additional, Cerna, C, additional, Gervasio, G, additional, Jeanneret, P, additional, Jonkmans, G, additional, Koang, D.H, additional, Lebrun, D, additional, Ould-Saada, F, additional, Puglierin, G, additional, Stutz, A, additional, Tadsen, A, additional, and Vuilleumier, J.-L, additional

Published
2003
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7. A new measurement of the elastic cross section at very low energy

Author

Amsler, C, primary, Avenier, M, additional, Broggini, C, additional, Busto, J, additional, Cerna, C, additional, Daraktchieva, Z, additional, Gervasio, G, additional, Jeanneret, P, additional, Jonkmans, G, additional, Koang, D.H, additional, Lamblin, J, additional, Lebrun, D, additional, Link, O, additional, Ould-Saada, F, additional, Puglierin, G, additional, Stutz, A, additional, Tadsen, A, additional, and Vuilleumier, J.L, additional

Published
2002
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8. Search for ββ decay in 136Xe: new results from the Gotthard experiment

Author

Luescher, R., primary, Farine, J., additional, Boehm, F., additional, Busto, J., additional, Gabathuler, K., additional, Gervasio, G., additional, Henrikson, H.E., additional, Jörgens, V., additional, Lou, K., additional, Paić, A., additional, Schenker, D., additional, Tadsen, A., additional, Treichel, M., additional, Vuilleumier, J.-L., additional, Vuilleumier, J.-M., additional, and Wong, H., additional

Published
1998
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9. An improved determination of the electroweak mixing angle from muon-neutrino electron scattering

Author

Geiregat, D., primary, Vilain, P., additional, Wilquet, G., additional, Binder, U., additional, Burkard, H., additional, Dore, U., additional, Flegel, W., additional, Grote, H., additional, Mouthuy, T., additional, Øveras, H., additional, Panman, J., additional, Santacesaria, R., additional, Winter, K., additional, Zacek, G., additional, Zacek, V., additional, Beyer, R., additional, Büsser, F.W., additional, Foos, C., additional, Gerland, L., additional, Layda, T., additional, Niebergall, F., additional, Rädel, G., additional, Stähelin, P., additional, Tadsen, A., additional, Voss, T., additional, Delbar, Th., additional, Favart, D., additional, Grègoire, G., additional, Knoops, E., additional, Gorbunov, P., additional, Grigoriev, E., additional, Khovansky, V., additional, Maslennikov, A., additional, Rozanov, A., additional, Lippich, W., additional, Nathaniel, A., additional, Staude, A., additional, Caria, M., additional, Eckart, B., additional, Ereditato, A., additional, Gorini, E., additional, Grancagnolo, F., additional, Iasevoli, R., additional, Palladino, V., additional, Strolin, P., additional, Capone, A., additional, De Pedis, D., additional, Di Capua, E., additional, Frenkel-Rambaldi, A., additional, Loverre, P.F., additional, Piredda, G., additional, and Zanello, D., additional

Published
1991
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10. A new determination of the electroweak mixing angle from muon-neutrino-electron scattering

Author

Geiregat, D., primary, Vilain, P., additional, Wilquet, G., additional, Bergsma, F., additional, Binder, U., additional, Burkard, H., additional, Eisenberg, Y., additional, Flegel, W., additional, Grote, H., additional, Mouthuy, T., additional, Øveras, H., additional, Panman, J., additional, Santacesaria, R., additional, Winter, K., additional, Zacek, G., additional, Zacek, V., additional, Beyer, R., additional, Blobel, V., additional, Büsser, F.W., additional, Foos, C., additional, Gerland, L., additional, Layda, T., additional, Niebergall, F., additional, Rädel, G., additional, Stähelin, P., additional, Tadsen, A., additional, Voss, T., additional, Delbar, Th., additional, Favart, D., additional, Grégoire, G., additional, Knoops, E., additional, Gorbunov, P., additional, Grigoriev, E., additional, Khovansky, V., additional, Maslennikov, A., additional, Rosanov, A., additional, Lippich, W., additional, Nathaniel, A., additional, Staude, A., additional, Caria, M., additional, Eckart, B., additional, Ereditato, A., additional, Gorini, E., additional, Grancagnolo, F., additional, Iasevoli, R., additional, Palladino, V., additional, Strolin, P., additional, Capone, A., additional, De Pedis, D., additional, Di Capua, E., additional, Dore, U., additional, Frenkel-Rambaldi, A., additional, Loverre, P.F., additional, Piredda, G., additional, and Zanello, D., additional

Published
1989
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11. A new measurement of the <f><ovl type="bar" STYLE="S">ν</ovl>ee−</f> elastic cross section at very low energy

Author

Amsler, C., Avenier, M., Broggini, C., Busto, J., Cerna, C., Daraktchieva, Z., Gervasio, G., Jeanneret, P., Jonkmans, G., Koang, D.H., Lamblin, J., Lebrun, D., Link, O., Ould-Saada, F., Puglierin, G., Stutz, A., Tadsen, A., and Vuilleumier, J.L.

Subjects
*NEUTRINOS, *ELECTRON scattering
Abstract

We have built a low background detector, a time projection chamber surrounded by an active anti-Compton, to measure the νee− elastic cross section down to the antineutrino energy of 900 keV. With our detector, running at 18 m from the core of a nuclear reactor in Bugey, we could detect reactor antineutrinos by measuring both the energy and the direction of the recoiling electrons. We report here on a first analysis of the data using an automatic scanning procedure. The results we obtain are 1.5σ higher than the ones predicted by the standard model. [Copyright &y& Elsevier]

Published
2002
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