Zobrazeno 1 - 10
of 37
pro vyhledávání: '"H. J. Daum"'
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:
E. Lehmann, B. Stella, T. Azemoon, G. Knies, H. Spitzer, B. Sechi-Zorn, Fernando Barreiro, H. Genzel, Ch. Gerke, K. Lau, B. Lewendel, Stephanie Brandt, H. Kapitza, A. Klovning, R. G. Glasser, U. Timm, G. E. Welch, G. T. Zorn, L. Criegee, P. Waloschek, H. J. Meyer, M. Scarr, G. Franke, C. Y. Chang, H. J. Daum, H.D. Mertiens, K. Wacker, Günter Flügge, Ch. Berger, M. Rost, B. Koppitz, E. Lillestöl, W. Lackas, L. Boesten, Wolfgang Wagner, D. Schmidt, H. C. Dehne, W. Gabriel, R. Grigull, J. Bürger, H. Meyer, G. Zech, H. Ackermann, O. Meyer, K. H. Pape, H.D. Reich, Claus Grupen, U. Michelsen, W. Zimmermann, O. Achterberg, R. O. Polvado, J. A. Skard, Gideon Alexander, Volker Blobel, Andris Skuja, A. Eskreys, E. Lillethun, K. Derikum, W. Lühraen, Frank Raupach, A. Bäcker, T. N. Ranga Swamy, R. van Staa, B. Neumann, G. G. Winter, R.C.E. Devenish, V. Hepp, R. G. Kellog, M. Rössler
Publikováno v:
Physics Letters B. 95:313-317
Measurements of the charged multiplicities for hadron production in e+e− annihilation in the center of mass energy range 9–32 GeV have been made. The average charged multiplicity has an energy dependence much stronger than ln s and similar to tha
Autor:
B. Koppitz, H. J. Daum, Wolfgang Wagner, U. Timm, O. Meyer, H. Spitzer, H. J. Meyer, H. Meyer, G. Wetjen, G. Horlitz, A. F. Garfinkel, L. Criegee, G. Alexander, B. Stella, E. Lehmann, R. Devenish, R. L. Thompson, R. Maschuw, W. Lackas, G. Knies, M. Rössler, G. Flügge, P. Waloschek, B. Neumann, W. Zimmermann, J. Bürger, W. Lührsen, P. Harms, Ch. Gerke, Ch. Berger, L. Boesten, Frank Raupach, H. Daumann, E. Hackmack, S. Wolff, R. van Staa, G. Zech, O. Achterberg, Th. Kahl, K. Wacker, H. C. Dehne, A. Bäcker, Volker Blobel, Claus Grupen, G. Franke, H. Kapitza, K. Derikum, G. G. Winter
Publikováno v:
Zeitschrift f�r Physik C Particles and Fields. 1:343-347
The electronic width Γ ee and the muonic branching ratioB μμ =Γ μμ /Γtot of the Γ(9.46) have been measured as Γ ee =(1.33±0.14) andB μμ=(2.2±2.0)%. From these values a lower limit of Γtot
Autor:
L. Criegee, B. Sechi-Zorn, Fernando Barreiro, R. van Staa, Ch. Gerke, A. Klovning, M. Rössler, E. Lehmann, R. G. Glasser, U. Timm, G. G. Winter, W. Wagner, T. Azemoon, Stephanie Brandt, Claus Grupen, Frank Raupach, G. Knies, H. J. Daum, Andris Skuja, H. Spitzer, B. Koppitz, H. Kapitza, E. Lillestöl, H. C. Dehne, H. Genzel, P. Waloschek, G. E. Welch, G. T. Zorn, M. Rost, D. Schmidt, H. Meyer, C. Y. Chang, G. Franke, R. Grigull, K. Wacker, W. Lackas, A. Diekmann, H.D. Mertiens, K. Lau, L. Boesten, J. Bürger, B. Stella, G. Zech, R. Devenish, W. Gabriel, O. Achterberg, R. Maschuw, K. Derikum, W. Lührsen, Ch. Berger, G. Flügge, H.D. Reich, R. G. Kellogg, G. Alexander, H. Ackermann, Volker Blobel, W. Zimmermann, O. Meyer, K. H. Pape, J. A. Skard, A. Eskreys, E. Lillethun, T. N. Ranga Swamy, A. Bäcker, B. Neumann
Publikováno v:
Physics Letters B. 86:413-417
Results on e+e− annihilation into hadrons at c.m. energies between 22 and 31.6 GeV are presented. The data were accumulated with the PLUTO detector at PETRA. The events are dominantly of the two-jet type. The value of the relative hadronic cross se
Autor:
L. Criegee, B. Sechi-Zorn, B. Stella, M. Zachara, H. Genzel, K. Stupperich, R. van Staa, F. Almeida, K. M. Smith, K. Diehlmann, A. Klovning, Gideon Bella, S. J. Maxfield, K. H. Pape, A. Deuter, H. Kapitza, H. Spitzer, Jean-Arcady Meyer, C. Raine, P. Waloschek, J. Pielorz, M. Rost, U. Michelsen, A. Bäcker, E. Lillestöl, U. Jacobs, S. T. Xue, Richard G Kellogg, B. Lewendel, Andris Skuja, L. Boesten, Wolfgang Wagner, R. G. Glasser, U. Timm, H. Maxeiner, J. A.J. Skard, V. Hepp, M. Krüger, Barry King, J. M. Scarr, H. Meyer, C. Maxeiner, D. Schmidt, Peter Bussey, J. D. Burger, W. Lührsen, A. J. Tylka, H. Müller, D. Burkart, M. Poppe, H. Junge, Y. Gnat, C. Y. Chang, Ch. Berger, M. Gaspero, H. J. Daum, Stephanie Brandt, Ch. Dehne, G. E. Welch, J. Grunhaus, Fernando Barreiro, H. J. Meyer, Ch. Gerke, J. C. Thomson, J. B. Dainton, J. M. Olsen, W. Lackas, O. Achterberg, R. O. Polvado, W. Zimmermann, A. Eskreys, G. Franke, G. Knies, B. Neumann, Claus Grupen, I. O. Skillicorn, Gideon Alexander, G. G. Winter, L. H. Flølo, K. Kraski, G. T. Zorn, G. Zech, B. Koppitz, K. Derikum, S. L. Cartwright, U. Maurus, Frank Raupach
Publikováno v:
Zeitschrift für Physik C Particles and Fields. 19:205-212
Measurements of energy moments for single quark jets at c.m. energies between 12 and 31.6 GeV are presented. The data, corrected for detector effects and initial state radiation, are compared to QCD predictions in the leading log approximation. Non p
Autor:
Andris Skuja, W. Gabriel, R. Maschuw, W. Lührsen, W. Lackas, Ch. Berger, P. Waloschek, Wolfgang Wagner, B. Sechi-Zorn, G. E. Welch, G. T. Zorn, R. van Staa, J. A. Skard, O. Achterberg, R. G. Glasser, U. Timm, G. Horlitz, B. Stella, R. Devenish, A. Klovning, K. Wacker, S. Wolff, H. Kapitza, K. Derikum, Claus Grupen, H. J. Daum, L. Boesten, M. Rost, Volker Blobel, B. Neumann, G. G. Winter, B. Koppitz, D. Schmidt, K. Lau, R. G. Kellog, R. Grigull, Frank Raupach, C. Y. Chang, E. Lillethun, O. Meyer, H. Genzel, G. Franke, K. H. Pape, J. Bürger, L. Criegee, Fernando Barreiro, M. Rössler, E. Lehmann, H. J. Meyer, G. Alexander, H. Ackermann, Ch. Gerke, A. Bäcker, T. Azemoon, G. Knies, G. Flügge, H.D. Reich, Stephanie Brandt, G. Zech, W. Zimmermann, H. C. Dehne, H. Spitzer, E. Lillestöl, H. Meyer, H.D. Mertiens
Publikováno v:
Physics Letters B. 81:410-415
First results from the magnetic detector PLUTO at the new e + e − storage ring PETRA are shown. The ratio R of the cross section for hadron production to that for μ-pair production has been measured to be R = 5.0 ± 0.5 at 13 GeV and 4.3 ±0.5 at