Zobrazeno 1 - 10
of 28
pro vyhledávání: '"A.A. Andam"'
Publikováno v:
Radiation Measurements. 25:613-614
A new environmental radon chamber has been designed, constructed, and tested by our group. The design was evolved in order to meet the needs of several different radon detection techniques, both active and passive. The radon activity concentration of
Autor:
D. Wegener, M. Pleško, S. Kanekal, Y. Oku, M. Danilov, V. Lubimov, B. Fominykh, M. Schäfer, A. Yagil, P. M. Patel, Roland Waldi, Yu. Zaitsev, J. C. Gabriel, J. Spengler, N. Kwak, W. Schmidt-Parzefall, R. S. Orr, D. J. Gilkinson, J. Stiewe, T. Ruf, K. Strahl, P. Böckmann, H. Gennow, A.A. Andam, C. W. Darden, William R. Frisken, A. Golutvin, H. Schröder, R. Davis, A. Semenov, J. D. Swain, D. Coppage, Holger Schulz, R. Gläser, I. Tichomirov, A. Nippe, D. B. Macfarlane, V. Soloshenko, G. Tsipolitis, S. Weseler, J. A. Parsons, K. W. Edwards, H. C. J. Seywerd, H. Kapitza, Hermann Kolanoski, V. Shevchenko, C. Ehmann, H. Scheck, Leif J. Jönsson, U. Matthiesen, U. Binder, R. Ammar, B. Spaan, V. Nagovitsin, V. Matveev, Douglas Gingrich, K. W. McLean, Anton Babaev, J. A. McKenna, H. Albrecht, K. R. Schubert, J. P. Donker, R. Wurth, G. Kernel, B. Boštjančič, I. V. Gorelov, V. Tchistilin, R. Childers, Robert K. Kutschke, A. Drescher, J. C. Yun, P. C. H. Kim, V. Ryltsov, G. Harder, P. Padley, J. D. Prentice, A. W. Nilsson, T. S. Yoon, D. Kamp
Publikováno v:
Physics Letters B. 192:245-252
Using the ARGUS detector at the DORIS II storage ring we have searched in three different ways for B0- B 0 mixing in ϒ (4S) decays. One explicitly mixed event, a decay ϒ (4S)→B0B0, has been completely reconstructed. Furthermore, we observe a 4.0
Autor:
A. Drescher, J. C. Yun, A.A. Andam, S. Kanekal, A. Semenov, J. D. Prentice, J. P. Donker, M. Pleško, V. Lubimov, I. Tichomirov, T. S. Yoon, William R. Frisken, V. Matveev, A. W. Nilsson, J. Spengler, N. Kwak, W. Schmidt-Parzefall, A. Yagil, Anton Babaev, A. Nippe, P. M. Patel, K. Strahl, D. B. Macfarlane, M. Schäfer, C. W. Darden, J. A. Parsons, H. Schröder, R. Davis, G. Kernel, D. Coppage, P. C. H. Kim, Yu. Zaitsev, I. V. Gorelov, V. Tchistilin, M. Danilov, G. Harder, P. Padley, R. S. Orr, R. Gläser, V. Shevchenko, T. Ruf, Roland Waldi, V. Soloshenko, A. Golutvin, H. Scheck, J. C. Gabriel, J. D. Swain, J. Stiewe, D. J. Gilkinson, K. W. McLean, R. Ammar, J. A. McKenna, Y. Oku, Douglas Gingrich, H. Albrecht, B. Fominykh, H. C. J. Seywerd, U. Binder, R. Wurth, K. R. Schubert, Robert K. Kutschke, D. Kamp, K. W. Edwards, B. Spaan, H. Kapitza, B. Boštjančič, Holger Schulz, U. Matthiesen, Leif J. Jönsson, V. Ryltsov, G. Tsipolitis, Hermann Kolanoski, D. Wegener, R. Childers, P. Böckmann
Publikováno v:
Physics Letters B. 199:457-461
The production of the pseudoscalar meson η'(958) is observed in the reaction e + e−→ e + e − η ′→e + e − π + π − γ with the ARGUS detector at DESY. We measure the product Γ γγ ( η ')Br( η ′ → ϱγ ) to be 1.13±0.04±0.13
Autor:
J. Spengler, N. Kwak, W. Schmidt-Parzefall, C. W. Darden, K. W. Edwards, Y. Oku, D. Wegener, A.A. Andam, R. Gläser, A. Drescher, J. C. Yun, J. P. Donker, G. Harder, R. Davis, V. Shevchenko, P. Padley, T. S. Yoon, P. M. Patel, J. A. Parsons, H. Kapitza, J. D. Swain, P. C. H. Kim, T. Ruf, K. R. Schubert, Yu. Zaitsev, K. W. McLean, J. A. McKenna, H. Scheck, A. Semenov, B. Spaan, R. Childers, A. Yagil, Leif J. Jönsson, Roland Waldi, Robert K. Kutschke, D. Kamp, J. C. Gabriel, V. Soloshenko, H. Albrecht, J. D. Prentice, A. W. Nilsson, Anton Babaev, R. Wurth, M. Pleško, A. Golutvin, K. Strahl, I. Tichomirov, P. Böckmann, H. Gennow, D. Coppage, M. Schäfer, V. Nagovitsin, R. S. Orr, H. Schröder, B. Boštjančič, C. Ehmann, R. Ammar, V. Ryltsov, Douglas Gingrich, Viktor Matveev, G. Kernel, William R. Frisken, A. Nippe, D. B. Macfarlane, V. Tchistilin, S. Weseler, S. Kanekal, Mikhail Danilov, B. Fominykh, I. V. Gorelov, J. Stiewe, Holger Schulz, U. Matthiesen, H. C. J. Seywerd, U. Binder, D. J. Gilkinson, G. Tsipolitis, Hermann Kolanoski, V. Lubimov
Publikováno v:
Physics Letters B. 198:577-582
The reaction γγ → 2π+ 2π− 2π0 has been studied using the ARGUS detector at the e+e− storage ring DORIS II at DESY. Production of ω mesons is observed and, in particular, the reaction γγ → ωω is seen for the first time. The cross sec
Autor:
Leif J. Jönsson, K. W. Edwards, V. Lubimov, Y. Oku, P. Böckmann, J. Spengler, N. Kwak, W. Schmidt-Parzefall, A. Golutvin, K. Strahl, C. W. Darden, R. Ammar, D. Coppage, H. Schröder, William R. Frisken, S. Kanekal, A. Nippe, Douglas Gingrich, R. Childers, D. B. Macfarlane, K. R. Schubert, B. Fominykh, M. Pleško, G. Kernel, D. Kamp, D. Wegener, I. Tichomirov, V. Tchistilin, M. Danilov, Roland Waldi, M. Schäfer, R. Davis, V. Shevchenko, J. C. Gabriel, H. Scheck, T. S. Yoon, V. Matveev, J. A. Parsons, H. Kapitza, K. W. McLean, S. Ball, J. D. Prentice, A. Semenov, J. A. McKenna, H. Albrecht, B. Spaan, A. W. Nilsson, J. D. Swain, R. Wurth, D. J. Gilkinson, Robert K. Kutschke, T. Ruf, V. Soloshenko, Holger Schulz, G. Harder, P. Padley, A. Drescher, G. Tsipolitis, U. Matthiesen, J. C. Yun, Hermann Kolanoski, R. S. Orr, V. Ryltsov, P. C. H. Kim, B. Boštjančič, A.A. Andam, J. P. Donker, R. C. Fernholz, Anton Babaev, R. Gläser, I. V. Gorelov, J. Stiewe, H. C. J. Seywerd, U. Binder, A. Yagil, P. M. Patel, Yu. Zaitsev
Publikováno v:
Physics Letters B. 199:447-450
We have searched for D0−D0 mixing in the cascade decay of D∗+, using the excellent particle identification of the ARGUS detector. No mixing was observed, leading to an upper limit of 1.4% (90%CL) for Γ( D 0 → D 0 →X′) Γ( D 0 → X) .
Autor:
C. Ehmann, K. W. Edwards, S. Weseler, B. Spaan, J. D. Prentice, P. Böckmann, A. W. Nilsson, A. Semenov, R. S. Orr, V. Chistilin, D. Wegener, Robert K. Kutschke, N. Kwak, H. Scheck, W. Schmidt-Parzefall, D. Coppage, Georgios Tsipolitis, A. Golutvin, H. Albrecht, C. W. Darden, M. Danilov, Doug Gingrich, R. Wurth, H. Schröder, D. B. MacFarlane, R. Childers, A. Yagil, A.A. Andam, V. Ryltsov, J. C. Gabriel, V. Matveev, V. Lyubimov, V. Shevchenko, R. Ammar, William R. Frisken, T. Ruf, M. Pleško, P. M. Patel, R. Waldi, A. Nippe, J. D. Swain, K. W. McLean, J. Stiewe, K. Strahl, J. A. McKenna, G. Harder, J. A. Parsons, M. Schäfer, J. Spengler, H. Kapitza, A. Drescher, J. C. Yun, H. Seywerd, Yu. Zaitsev, B. Boštjančič, J. P. Donker, R. Gläser, P. C. H. Kim, B. Fominykh, G. Kernel, I. Tikhomirov, B.Paul Padley, R. Davis, D. J. Gilkinson, V. Soloshenko, D. Kamp, Anton Babaev, T. S. Yoon, I. V. Gorelov, V. Nagovitsyn, Hermann Kolanoski, Y. Oku, H. Gennow, Holger Schulz, S. Kanekal, U. Matthiesen, K. R. Schubert, Leif J. Jönsson, U. Binder
Publikováno v:
Physics Letters B. 196:101-106
Autor:
R. Ammar, V. Shevchenko, Douglas Gingrich, Holger Schulz, J. Stiewe, H. C. J. Seywerd, K. W. McLean, Leif J. Jönsson, U. Binder, J. A. McKenna, G. Kernel, M. Pleško, V. Tchistilin, D. Wegener, I. V. Gorelov, U. Matthiesen, V. Matveev, A. Yagil, V. Lubimov, K. Strahl, D. Coppage, H. Kapitza, P. M. Patel, J. Spengler, N. Kwak, W. Schmidt-Parzefall, T. S. Yoon, M. Schäfer, C. W. Darden, P. Böckmann, M. Danilov, Roland Waldi, J. C. Gabriel, A.A. Andam, B. Spaan, K. R. Schubert, Yu. Zaitsev, S. Kanekal, P. C. H. Kim, K. W. Edwards, J. A. Parsons, R. Gläser, Y. Oku, G. Harder, R. Childers, V. Nagovitsin, P. Padley, R. Davis, D. Kamp, G. Tsipolitis, A. Golutvin, Hermann Kolanoski, T. Ruf, B. Fominykh, J. P. Donker, J. D. Prentice, A. W. Nilsson, H. Schröder, R. S. Orr, A. Drescher, J. C. Yun, I. Tichomirov, Robert K. Kutschke, Anton Babaev, A. Semenov, D. J. Gilkinson, H. Scheck, William R. Frisken, A. Nippe, D. B. Macfarlane, S. Weseler, H. Albrecht, R. Wurth, J. D. Swain, V. Ryltsov, V. Soloshenko, B. Boštjančič
Publikováno v:
Physics Letters B. 195:307-310
We have searched for the decay τ − → v τ ηπ − using data accumulated by the ARGUS detector at the e + e − storage ring DORIS II at DESY. No η signal was found in the π + π − π 0 subsystems of the decay τ − → v τ π − π −
Autor:
S. Kanekal, Robert K. Kutschke, I. Tichomirov, Holger Schulz, A. Golutvin, A. Yagil, G. Tsipolitis, Hermann Kolanoski, U. Matthiesen, V. Matveev, A.A. Andam, P. M. Patel, J. A. Parsons, H. Schröder, D. Wegener, J. D. Prentice, A. W. Nilsson, R. Ammar, Douglas Gingrich, Yu. Zaitsev, B. Spaan, T. Ruf, William R. Frisken, R. C. Fernholz, H. Scheck, A. Nippe, D. B. Macfarlane, Y. Oku, S. Ball, R. Childers, Leif J. Jönsson, H. Albrecht, R. S. Orr, M. Pleško, B. Boštjančič, R. Wurth, K. Strahl, I. V. Gorelov, H. Kapitza, B. Fominykh, G. Kernel, M. Schäfer, A. Semenov, D. Coppage, J. Stiewe, V. Soloshenko, J. P. Donker, J. D. Swain, R. Davis, V. Tchistilin, P. Böckmann, D. J. Gilkinson, M. Danilov, Roland Waldi, J. C. Gabriel, H. C. J. Seywerd, U. Binder, Anton Babaev, R. Gläser, K. R. Schubert, K. W. Edwards, D. Kamp, V. Lubimov, J. Spengler, N. Kwak, W. Schmidt-Parzefall, C. W. Darden, V. Shevchenko, K. W. McLean, J. A. McKenna, T. S. Yoon, P. C. H. Kim, A. Drescher, J. C. Yun, A. Krüger, V. Ryltsov, G. Harder, P. Padley
Publikováno v:
Physics Letters B. 198:255-260
The final state K + K − π + π − has been studied in γγ interactions using the ARGUS detector at the e + e − storage ring DORIS II at DESY. Production of the vector meson pair K ∗0 (892) K ∗0 (892) is observed for the first time. The cro
Autor:
J. Spengler, R. S. Orr, A.A. Andam, J. Stiewe, G. Kernel, N. Kwak, G. Harder, P. Padley, D. Wegener, V. Tchistilin, R. Ammar, V. Lubimov, Georgios Tsipolitis, A. Golutvin, H. Schröder, A. Yagil, W. Schmidt-Parzefall, D. Coppage, A. Drescher, J. C. Yun, A. Semenov, C. W. Darden, J. P. Donker, M. Danilov, Doug Gingrich, Yu. Zaitsev, Holger Schulz, B. Spaan, P. C. H. Kim, A. Nippe, T. Ruf, J. C. Gabriel, V. Ryltsov, R. Gläser, V. Shevchenko, H. Seywerd, Robert K. Kutschke, Hermann Kolanoski, U. Binder, K. R. Schubert, B. Fominykha, J. D. Swain, P. M. Patel, K. W. McLean, H. Scheck, Wr Frisken, M. Pleško, Leif J. Jönsson, K. Strahl, J. A. McKenna, Y. Oku, V. Nagovitsin, S. Kanekal, U. Matthiesen, R. Davis, K. W. Edwards, D. B. MacFarlane, T. S. Yoon, R. Childers, H. Albrecht, D. J. Gilkinson, Anton Babaev, M. Schäfer, R. Wurth, V. Matveev, J. A. Parsons, H. Kapitza, D. Kamp, I. Tichomirov, R. Waldi, I. V. Gorelov, B. Boštjančič, V. Soloshenko, J. D. Prentice, A. W. Nilsson, P. Böckmann
Publikováno v:
Physics Letters B. 197:452-456
Using the ARGUS detector at the e + e − storage ring DORIS II at DESY we have investigated the decays B 0 → D ∗− e + v and B 0 →D ∗− μ + ν. The B 0 mesons were produced in 39600 ϒ(4 S )→ B 0 B 0 decays. Assuming electron-muon unive
Autor:
H. Scheck, Y. Oku, S. Ball, H. Albrecht, R. Wurth, T. S. Yoon, V. Lubimov, A. Semenov, J. Spengler, N. Kwak, W. Schmidt-Parzefall, V. Matveev, K. W. Edwards, P. C. H. Kim, C. W. Darden, Robert K. Kutschke, K. Strahl, T. Ruf, J. D. Swain, B. Spaan, D. Coppage, V. Shevchenko, Leif J. Jönsson, A.A. Andam, A. Krüger, V. Ryltsov, D. Wegener, K. W. McLean, R. Davis, D. J. Gilkinson, J. A. McKenna, G. Tsipolitis, D. Kamp, H. Schröder, A. Drescher, J. C. Yun, M. Pleško, I. Tichomirov, G. Kernel, B. Boštjančič, S. Kanekal, Hermann Kolanoski, R. Ammar, A. Yagil, R. S. Orr, Douglas Gingrich, K. R. Schubert, Holger Schulz, V. Tchistilin, M. Schäfer, B. Fominykh, R. Gläser, P. M. Patel, M. Danilov, Roland Waldi, U. Matthiesen, A. Golutvin, J. P. Donker, J. C. Gabriel, William R. Frisken, J. A. Parsons, Yu. Zaitsev, H. Kapitza, G. Harder, A. Nippe, D. B. Macfarlane, V. Soloshenko, P. Padley, Anton Babaev, J. D. Prentice, A. W. Nilsson, U. Binder, R. Childers, P. Böckmann, R. C. Fernholz, I. V. Gorelov, J. Stiewe, H. C. J. Seywerd
Publikováno v:
Physics Letters B. 199:451-456
Using the ARGUS detector at the e +e− storage ring DORIS II, we have studied the colour-suppressed decays B → J ψ X and B→ψ′ X. We find the inclusive branching ratios for these two channels to be (1.07±0.16±0.19) % and (0.46±0.17±0.11)