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Your search keyword '"E. Belau"' showing total 11 results
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11 results on '"E. Belau"'

1. Inclusive $$\bar K^{0*} (892)$$ andK 0*(892) production on silicon by 200 GeVK − andπ −

Author

H. Palka, E. Belau, E. Higon, J. Richardson, D. P. Kelsey, S. Watts, P. Weilhammer, P. Gras, H.G.J.M. Tiecke, H. Dietl, G. de Rijk, M. Rozanska, M. Turala, M. Bosman, L. W. Wiggers, A. R. Gillman, M. Pepe, G. Waltermann, D. Bucholz, Z. Hajduk, W. Männer, V. Castillo, S. Kwan, H. Becker, B.D. Hyams, Fred Wickens, K. Rybicki, J. Kemmer, T. Böhringer, B. Lücking, T. Zeludziewicz, H.F. Fawcett, E. Neugebauer, J. Malos, G. Polok, U. Stierlin, S. Barlag, R. Klanner, R. J. Tapper, G. Lütjens, T. Gooch, S. Gill, G. Lutz, C. Daum, R.S. Gilmore, U. Kötz, H. J. Seebrunner, V. Chabaud, A. Wylie, and C.J.S. Damerell

Subjects
Physics, Nuclear physics, Physics and Astronomy (miscellaneous), Silicon, chemistry, Transverse momentum, chemistry.chemical_element, Atomic physics, Engineering (miscellaneous)
Abstract

The production of the neutralK− (892) resonances by 200 GeVK− andπ− has been studied over the kinematic range 0.0

Published
1990

2. Upper limits for charm production in 150 GeV p-Be interactions

Author

H.G.J.M. Tiecke, T. Zeludziewicz, M. Rozanska, L. W. Wiggers, Martine Bosman, M. Turala, Robert Klanner, B.D. Hyams, Fred Wickens, G. Waltermann, W. Männer, Hans Dijkstra, G. Polok, Rowan Bailey, G. Lütjens, W. Spierenburg, G. Lutz, C. Daum, V. Chabaud, C.J.S. Damerell, R. J. Tapper, U. Stierlin, R.S. Gilmore, A. R. Gillman, J. Malos, H. J. Seebrunner, C. Hardwick, A. Dwurazny, A. Wylie, L. Görlich, P. Weilhammer, K. Rybicki, T. Böhringer, W. Hoogland, Z. Hajduk, H. Becker, Jos Vermeulen, Marcos Cerrada, and E. Belau

Subjects
Systematic error, Physics, Nuclear and High Energy Physics, Particle physics, Meson, Nuclear Theory, Hadron, Large aperture, Electron, Charmed baryons, Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, Nucleon
Abstract

A search has been made for the hadronic production of charmed baryons and mesons with a large aperture forward magnetic spectrometer using 150 GeV protons originating from the CERN-SPS. A prompt electron trigger was used as a signature for charm. Upper limits at 90% confidence level have been obtained for the production of Λ c + D 0 , D 0 D + and D − : σ(Λ c ) ⩽ 8 μ b , σ( D 0 ) ⩽ 64 μ b , σ( D 0 ) b , σ( D + ) ⩽ 51 μ b and σ( D − ) ⩽ 49 μ b per nucleon, assuming linear A dependence. Systematic errors due to uncertainties in branching ratios and to model dependence of the acceptance calculation are discussed.

Published
1984

3. Measurement of mass and lifetime of hadronically produced charmed F mesons

Author

C.J.S. Damerell, Fred Wickens, A. R. Gillman, C. Daum, U. Koetz, Martine Bosman, C. De Rijk, H.G.J.M. Tiecke, Stephen Watts, R. J. Tapper, E. Belau, E. Neugebauer, G. Lutz, V. Chabaud, U. Stierlin, T. Zeludziewicz, C. Hardwick, R. Klanner, M. Rozanska, Z. Hajduk, L. W. Wiggers, A. Wylie, Hans Dijkstra, H. J. Seebrunner, M. Turala, Rowan Bailey, G. Waltermann, W. Männer, K. Rybicki, T. Böhringer, B.D. Hyams, P. Weilhammer, G. Lütjens, R.S. Gilmore, W. Hoogland, J. Malos, and S. Gill

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Meson, Spectrometer, Physics::Instrumentation and Detectors, Nuclear Theory, chemistry.chemical_element, law.invention, Nuclear physics, Telescope, chemistry, law, High Energy Physics::Experiment, Beryllium, Nuclear Experiment, Particle Physics - Experiment, Silicon microstrip detectors
Abstract

We have observed three unique decays of F mesons into KK π and five unique decays of D mesons into KK π using the NA11 spectrometer together with a telescope of high-resolution silicon microstrip detectors. The mass value obtained for the F meson is (1975 ± 4) MeV, the lifetime (3.2± 1.3 3..0 )×10 −13 s.

Published
1984

4. A silicon counter telescope to study short-lived particles in high-energy hadronic interactions

Author

A. Wylie, R. Klanner, U. Koetz, B.D. Hyams, J. Kemmer, E. Belau, E. Neugebauer, and G. Lutz

Subjects
Physics, Fabrication, Silicon, Physics::Instrumentation and Detectors, business.industry, General Engineering, chemistry.chemical_element, Microstrip, law.invention, Telescope, Nuclear physics, Optics, chemistry, law, Ionization, Beryllium, business, Image resolution, Beam (structure)
Abstract

A telescope consisting of six silicon microstrip detectors achieving 5 μm spatial resolution for minimum ionizing particles has been built. The design and fabrication of the counters, electronics, and mechanical set-up is described, and first results of its performance in a 175 GeV/c beam are reported.

Published
1983

5. Joint production of ? mesons and? �,? 0,p, $$\bar p$$ ,K s 0 andK � in hadronic interactions

Author

R. J. Tapper, E. Belau, H. Palka, Z. Hajduk, C.J.S. Damerell, H. J. Seebrunner, H.G.J.M. Tiecke, U. Stierlin, A. R. Gillman, R. Klanner, A. Wylie, S. Kwan, M. Turala, S. Watts, C. Daum, C. Hardwick, Fred Wickens, M. Pepé, G. Lütjens, V. Chabaud, R. Bailey, L. W. Wiggers, Hans Dijkstra, Martine Bosman, P. Weilhammer, J. Richardson, R.S. Gilmore, B.D. Hyams, G. de Rijk, G. Waltermann, W. Männer, U. Kötz, K. Rybicki, T. Böhringer, E. Neugebauer, G. Lutz, T. Zeludziewicz, S. Gill, J. Malos, and W. Hoogland

Subjects
Physics, Physics and Astronomy (miscellaneous), Meson, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, Parton, Nuclear physics, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, Engineering (miscellaneous), Joint (geology), Bar (unit)
Abstract

The joint production of ϕ mesons andπ ±,π 0,p, $$\bar p$$ ,K 0 andK ± is investigated using a sample of 600,000 inclusive ϕ meson events obtained in hadron Be interactions with incidentπ ±,p, $$\bar p$$ andK ± beams. Evidence is presented for the joint production of ϕ mesons and strange particles produced with non-strange incident beams. With incidentK ± beam the number of additional strange particles is suppressed. The results are found to be in agreement with the qualitative predictions of a parton fusion model. The comparison with the Lund model for lowp T processes is fair.

Published
1986

6. Measurement ofD meson production in 200 GeV π−-Be interactions

Author

U. Kötz, H. J. Seebrunner, Fred Wickens, H.G.J.M. Tiecke, E. Belau, W. Hoogland, E. Neugebauer, G. Lutz, J. Richardson, A. Wylie, G. Waltermann, W. Männer, R. J. Tapper, Z. Hajduk, M. Rozanska, L. W. Wiggers, Martine Bosman, U. Stierlin, S. Kwan, R. Klanner, S. Gill, C.J.S. Damerell, R.S. Gilmore, P. Weilhammer, C. Daum, G. de Rijk, R. Bailey, V. Chabaud, J. Malos, M. Turala, K. Rybicki, T. Böhringer, M. Pepé, G. Lütjens, A. R. Gillman, T. Zeludziewicz, H. Paŀka, B.D. Hyams, J. Kemmer, Hans Dijkstra, and C. Hardwick

Subjects
Nuclear physics, Physics, Single electron, Particle physics, Meson production, Physics and Astronomy (miscellaneous), Meson, Elementary particle, Quantum field theory, Engineering (miscellaneous), Silicon microstrip detectors, Vertex (geometry)
Abstract

We have measured the differential and total cross sections ofD meson production in 200 GeV π−-beryllium interactions, using a sample of 48 fully reconstructed and nearly background-freeD mesons in the decay channelsK∓π±,K∓π±π± andK∓π∓π±π±. A single electron trigger has been used to select events containing a pair of charmed particles. A vertex telescope of 6 silison microstrip detectors allowed the reconstruction of tracks of charged secondaries and the reconstruction of primary and decay vertices with high precision. The ratio of branching fractions for\(\mathop {D^0 }\limits^{( - )} \to K^ \mp \pi ^ \pm \) to\(\mathop {D^0 }\limits^{( - )} \to K^ \mp \pi ^ \mp \pi ^ \pm \pi ^ \pm \), and an upper limit for\(D^0 - \bar D^0 \) mixing are presented.

Published
1986

7. InclusiveK *0(890) and $$\bar K*^0 $$ (890) production on beryllium byK − and π− at 175 GeV

Author

Z. Hajduk, C.J.S. Damerell, E. Belau, W. Hoogland, Jos Vermeulen, V. Chabaud, C. Dauin, G. Waltermann, A. Dwurazny, K. Rybicki, R. Bailey, Martine Bosman, T. Böhringer, G. Polok, R.S. Gilmore, G. Lutz, A. Wylie, A. R. Gillman, W. Männer, Marcos Cerrada, U. Stierlin, L. Görlich, R. J. Tappel, D. G. Bardsley, R. Klanner, J. Malos, T. Zeludziewicz, B.D. Hyams, G. Lütjens, M. Turala, W. Spierenburg, H.G.J.M. Tiecke, P. Weilhammer, Hans Dijkstra, G. de Rijk, C. Hardwick, M. Rozanska, L. W. Wiggers, H. J. Seebrunner, and Fred Wickens

Subjects
Physics, Quark, Particle physics, Physics and Astronomy (miscellaneous), Hydrogen, Hadron, chemistry.chemical_element, Nuclear physics, symbols.namesake, chemistry, symbols, Feynman diagram, Production (computer science), Beryllium, Engineering (miscellaneous), Beam (structure), Bar (unit)
Abstract

The reactions $$K^ - Be \to {}^(\bar K^) *^0 (890)X,\pi ^ - Be \to {}^(\bar K^) *^0 (890)X$$ , have been studied in a 175 GeV unseparated hadron beam in the kinematic range 0

Published
1984

8. A silicon strip detector telescope for the measurement of production and decay of charmed particles

Author

G. Waltermann, W. Männer, H.G.J.M. Tiecke, A. R. Gillman, U. Kötz, U. Stierlin, R. Klanner, C. Daum, R.S. Gilmore, H. J. Seebrunner, G. Polok, J. Malos, G. de Rijk, V. Chabaud, Fred Wickens, R. J. Tapper, T. Zeludziewicz, C.J.S. Damerell, S. Gill, E. Belau, C. Hardwick, M. Rozanska, Z. Hajduk, L. W. Wiggers, A. Wylie, W. Hoogland, A. Dwurazny, R. Bailey, K. Rybicki, T. Böhringer, J. Kemmer, E. Neugebauer, P. Weilhammer, G. Lutz, Hans Dijkstra, G. Lütjens, B.D. Hyams, L. Görlich, M. Turala, and Martine Bosman

Subjects
Physics, Nuclear and High Energy Physics, High energy, Silicon, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Detector, Hadron, chemistry.chemical_element, law.invention, Telescope, Nuclear physics, chemistry, law, Silicon detector, High Energy Physics::Experiment, Nuclear Experiment, Instrumentation, Image resolution
Abstract

A silicon detector telescope with 5 μm spatial resolution has been developed and successfully used to select charmed particles produced in high energy hadron collisions. A brief review of the properties and the performance of the system is given.

Published
1984

9. Inclusive $\phi$ meson production, the parton fusion model and strange quark structure functions

Author

Martine Bosman, U. Stierlin, R. Klanner, U. Kötz, A. R. Gillman, H. Palka, B.D. Hyams, R. J. Tapper, Fred Wickens, A. Wylie, S. Gill, C.J.S. Damerell, S. Watts, R. Bailey, E. Belau, L. W. Wiggers, C. Hardwick, H.G.J.M. Tiecke, H. J. Seebrunner, M. Pepé, V. Chabaud, M. Turala, R.S. Gilmore, C. Daum, Hans Dijkstra, G. Lütjens, J. Malos, W. Hoogland, E. Neugebauer, G. Lutz, T. Zeludziewicz, G. Waltermann, W. Männer, Z. Hajduk, S. Kwan, G. de Rijk, J. Richardson, K. Rybicki, T. Böhringer, and P. Weilhammer

Subjects
Quark, Physics, Particle physics, Fusion, Strange quark, Valence (chemistry), Physics and Astronomy (miscellaneous), Meson, High Energy Physics::Phenomenology, Nuclear Theory, Structure function, Hadron, Parton, Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract

The parton fusion model is used to describe the longitudinal differential cross section (dσ/dxF) of hadronic ϕ production. Thedσ/dxF for ϕ production in π±p,\(\mathop p\limits^{( - )} p\) andK±p interactions is evaluated in the model by using structure functions for the constituents of the interacting particles. A comparison between the model and high statistics data in the Feynmanx range 0.0

Published
1986

10. Hadronic $\phi$ production and the Lund model for low p$_{T}$ interactions

Author

R. J. Tapper, M. Turala, B.D. Hyams, Hans Dijkstra, G. de Rijk, C.J.S. Damerell, H.G.J.M. Tiecke, P. Weilhammer, J. Richardson, S. Gill, U. Kötz, Fred Wickens, E. Belau, C. Hardwick, S. Watts, R. Bailey, G. Waltermann, K. Rybicki, A. Wylie, W. Männer, T. Böhringer, Martine Bosman, T. Zeludziewicz, L. W. Wiggers, Z. Hajduk, C. Daum, S. Kwan, J. Malos, E. Neugebauer, M. Pepé, G. Lutz, V. Chabaud, U. Stierlin, R. Klanner, A. R. Gillman, G. Lütjens, R.S. Gilmore, H. Palka, W. Hoogland, and H. J. Seebrunner

Subjects
Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, Hadron, Elementary particle, Nuclear physics, Particle acceleration, Momentum, Field theory (psychology), Quantum field theory, Engineering (miscellaneous), Particle Physics - Experiment, Bar (unit)
Abstract

Experimental results on inclusive ϕ production are compared with the Lund model for lowp T hadronic interactions. The data is based on a sample of 600,000 ϕ mesons in the kinematic rangep T

Published
1986

11. High statistics inclusive $\phi$ meson production at SPS energies

Author

Z. Hajduk, A. Wylie, R.S. Gilmore, E. Belau, S. Kwan, C.J.S. Damerell, C. Daum, G. Waltermann, S. Watts, W. Männer, G. de Rijk, V. Chabaud, H. Palka, Martine Bosman, A. R. Gillman, T. Zeludziewicz, G. Lütjens, R. Bailey, U. Stierlin, J. Richardson, R. Klanner, J. Malos, C. Hardwick, H.G.J.M. Tiecke, B.D. Hyams, K. Rybicki, S. Gill, P. Weilhammer, T. Böhringer, R. J. Tapper, E. Neugebauer, W. Hoogland, G. Lutz, Hans Dijkstra, M. Turala, U. Kötz, Fred Wickens, L. W. Wiggers, M. Pepé, H. J. Seebrunner, and B Kisielewski

Subjects
Quark, Physics, Density matrix, Particle physics, Valence (chemistry), Physics and Astronomy (miscellaneous), Meson, Mass distribution, Nuclear Theory, High Energy Physics::Phenomenology, Elementary particle, Strangeness, Nuclear physics, High Energy Physics::Experiment, Quantum field theory, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract

Inclusive ϕ meson production has been measured for 100 GeV/c and 200 GeV/c incident π−,\(\bar p\) andK−, and for 120 GeV/c and 200 GeV/c incident π+,p andK+, using a Be target. A total of 630,000 ϕ mesons has been recorded in the kinematic range 0

Published
1986

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