Zobrazeno 1 - 10
of 96
pro vyhledávání: '"U. Nguyen-Khac"'
Autor:
J. Guillon, C. de la Taille, S. Tisserant, B. Degrange, F. Moreau, U. Nguyen-Khac, M. Verderi
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 311:539-547
The energy resolution on electrons from a 207 Bi source is measured in a multiwire chamber filled with the room-temperature liquid tetramethylsilane. The contribution of the ultra-low-noise electronics to the energy resolution is 16 keV (rms). The ph
Autor:
O. Perdereau, C. Paulot, J. Löffler, C. Boudarios, Peter Schleper, B. Kuznik, H. Mönch, L. Mosca, B. Dudelzack, D. Lalanne, H. J. Meyer, U. Nguyen-Khac, K. Daum, R. Barloutaud, C. Arpesella, G. Szklarz, Ch. Berger, P. Eschstruth, J. Ernwein, J. F. Glicenstein, James T. Becker, Richard Nisius, L. Moscoso, L. Behr, M. Fröhlich, G. Chardin, B. Jacobi, Frank Raupach, P. Bareyre, D. Blum, Wolfgang Rhode, A. Borg, S. Tisserant, Y. Wei, Michael Schubnell, Y. Benadjal, F. Laplanche, K.-H. Becker, Ph. Roy, B. Degrange, S. Jullian, C. Longemare
Publikováno v:
Physics Letters B
Physics Letters B, Elsevier, 1991, 269, pp.227-233
Physics Letters B, Elsevier, 1991, 269, pp.227-233
The fully contained events recorded in the Frejus detector are used to search for (B-L)-violating nucleon decay and di-nucleon decay processes. No signal is found for a sensitivity of 2.0 kiloton year. The lower limits on the partial lifetime for the
Autor:
H. J. Daum, L. Moscoso, D. Blum, S. Tisserant, G. Chardin, J. Löffler, B. Jacobi, J. F. Glicenstein, Claire Bourdarios, Michael Schubnell, Ph. Roy, Peter Schleper, James T. Becker, Y. Benadjal, R. Möller, A. Borg, F. Laplanche, B. Kuznik, P. Wintgen, Frank Raupach, Ch. Berger, S. Jullian, L. Behr, P. Bareyre, D. Lalanne, H. Mönch, K.-H. Becker, C. Longuemare, H. J. Meyer, B. Degrange, C. Paulot, U. Nguyen-Khac, O. Perdereau, G. Szklarz, J. Ernwein, C. Arpesella, M. Fröhlich, R. Nisius, R. Barloutaud, P. Eschstruth, Y. Wei, L. Mosca, B. Dudelzak
Publikováno v:
Zeitschrift f�r Physik C Particles and Fields. 50:385-394
Lower limits on the nucleon lifetime in channels containing at least one positron or muon are given. The analysis is based on 4 years of data taking with the Frejus detector. Various approaches to determine the background from atmospheric neutrinos a
Autor:
G. Chardin, B. Jacobi, J. F. Glicenstein, Claire Bourdarios, S. Tisserant, R. Nisius, Ph. Roy, R. Barloutaud, P. Eschstruth, K.-H. Becker, James T. Becker, A. Borg, Y. Wei, G. Szklarz, Ch. Berger, P. Bareyre, B. Degrange, H. J. Daum, L. Moscoso, J. Ernwein, H. Mönch, C. Longuemare, L. Behr, M. Fröhlich, S. Jullian, Michael Schubnell, B. Dudelzak, B. Kuznik, Y. Benadjal, F. Laplanche, H. J. Meyer, D. Lalanne, U. Nguyen-Khac, O. Perdereau, D. Blum, C. Paulot, Peter Schleper, C. Arpesella, L. Mosca, W. Kolton, Frank Raupach
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 302:406-414
We present an experimental estimate of the background due to atmospheric neutrino interactions in the Frejus underground nucleon decay experiment. The data of a CERN neutrino experiment of the Aachen-Padova collaboration are re-analyzed for this purp
Autor:
Michael Schubnell, D. Lalanne, S. Jullian, James T. Becker, F. Laplanche, B. Dudelzak, Y. Wei, G. Szklarz, M. Fröhlich, H. J. Meyer, Ch. Berger, U. Nguyen-Khac, S. Tisserant, Richard Nisius, B. Degrange, C. Longuemare, O. Perdereau, H. Mönch, A. Borg, L. Behr, C. Paulot, R. Möller, J. Ernwein, H. J. Daum, L. Moscoso, K.-H. Becker, G. Chardin, B. Jacobi, Claire Bourdarios, Ph. Roy, D. Blum, J. F. Glicenstein, Frank Raupach, C. Arpesella, B. Kuznik, P. Bareye, R. Barloutaud, P. Eschstruth, L. Mosca
Publikováno v:
Physics Letters B. 245:305-310
Atmospheric neutrino interactions have been studied with the Frejus proton decay detector using a total fiducial sensitivity of 1.56 kT yr. The atmospheric neutrino interaction sample has been compared to a Monte Carlo simulation which includes neutr
Autor:
C. Arpesella, Ph. Roy, H. Mönch, C. Longuemare, P. Bareyre, R. Barloutaud, P. Eschstruth, C. Paulot, S. Tisserant, M. Fröhlich, G. Chardin, B. Jacobi, B. Kuznik, J. F. Glicenstein, R. Nisius, Claire Bourdarios, D. Blum, Ch. Berger, H. J. Meyer, H. J. Daum, K.-H. Becker, James T. Becker, L. Moscoso, L. Mosca, Michael Schubnell, B. Degrange, J. Ernwein, U. Nguyen-Khac, Y. Minet, A. Borg, O. Perdereau, Y. Wei, G. Szklarz, S. Jullian, B. Dudelzak, R. Möller, Y. Benadjal, F. Laplanche, L. Behr, D. Lalanne, Frank Raupach
Publikováno v:
Zeitschrift f�r Physik C Particles and Fields. 48:221-226
With the Frejus detector we studied four astrophysical point-like sources by using\(v_e (\bar v_e )\) and\(v_\mu (\bar v_\mu )\) interactions in the detector and\(v_\mu (\bar v_\mu )\) interactions in the surrounding rock. No excess of events was fou
Autor:
K.-H. Becker, B. Kuznik, Y. Benadjal, H. Mönch, S. Tisserant, B. Dudelzak, C. Arpesella, R. Nisius, M. Fröhlich, A. Borg, H. J. Meyer, H. J. Daum, L. Moscoso, P. Roy, L. Behr, G. Chardin, U. Nguyen-Khac, R. Möller, B. Jacobi, S. Jullian, O. Perdereau, James T. Becker, J. F. Glicenstein, Peter Schleper, Claire Bourdarios, C. Longuemare, Michael Schubnell, D. Lalanne, Frank Raupach, D. Blum, C. Paulot, B. Degrange, J. Ernwein, G. Szklarz, P. Bareyre, Y. Wei, F. Laplanche, R. Barloutaud, P. Eschstruth, L. Mosca, Ch. Berger
Publikováno v:
Physics Letters B. 240:237-242
From the analysis of the fully contained events recorded in the underground Frejus detector, a lower limit of 1.2×108s at 90% CL is derived for the free neutron-antineutron oscillation time.
Autor:
U. Nguyen-Khac, A. M. Lutz
Publikováno v:
Neutral Currents Twenty Years Later.
Autor:
B. Kuznik, Frank Raupach, D. Lalanne, G. Szklarz, R. Möller, B. Seyffert, Ch. Berger, S. Demski, C. Longuemare, L. Behr, M. Fröhlich, J. F. Glicenstein, S. Jullian, D. Blum, L. Mosca, O. Perdereau, A. Borg, R. Mayer, P. Bareyre, S. Tisserant, H. Mönch, Y. Wei, B. Degrange, C. Arpesella, Michael Schubnell, U. Nguyen-Khac, James T. Becker, K.-H. Becker, C. Paulot, Y. Benadjal, F. Laplanche, P. Wintgen, H. J. Daum, L. Moscoso, Peter Schleper, J. Ernwein, H. Meyer, R. Barloutaud, P. Eschstruth, B. Dudelzak, Ph. Roy, G. Chardin, B. Jacobi, Claire Bourdarios, Richard Nisius
Publikováno v:
Physics Letters B. 227:489-494
We present an analysis of the neutrino event sample recorded in the Frejus experiment. This sample which corresponds to the 1.56 kt yr final sensitivity of the experiment is compared to the predictions of a Monte Carlo neutrino simulation program. It
Autor:
F. Laplanche, R. Barloutaud, Michael Schubnell, O. Perdereau, B. Dudelzak, B. Kuznik, M. Fröhlich, Y. Wei, Y. Benadjal, Ch. Berger, R. Möller, James T. Becker, R. Nisius, B. Degrange, R. Mayer, Y. Minet, A. Borg, L. Behr, D. Blum, C. Paulot, C. Longuemare, B. Seyffert, S. Demski, S. Jullian, H. Mönch, P. Roy, C. Arpesella, D. Lalanne, K.-H. Becker, S. Tisserant, Frank Raupach, P. Bareyre, G. Szklarz, H. J. Meyer, L. Mosca, J. Ernwein, P. Wintgen, U. Nguyen-Khac, Peter Schleper, H. J. Daum, L. Moscoso, P. Serri, P. Eschstruth, G. Chardin, B. Jacobi, J. F. Glicenstein, Claire Bourdarios
Publikováno v:
Nuclear Physics B. 313:509-540
With the Frejus 900 ton calorimeter (550 ton fiducial), a search for nucleon decay events into anti-neutrino plus meson has been performed. No signal is found for a sensitivity of 1.3 kiloton × year. Lower lifetime limits for various decay modes ran