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Start Over Author "Kampert K. H." Journal zeitschrift fur physik c particles and fields
20 results on '"Kampert K. H."'

1. Bose-einstein correlations of soft pions in ultrarelativistic nucleus-nucleus collisions

Author

Awes, T. C., Bloomer, M. A., Blume, C., Bock, D., Bock, R., Bucher, D., Clewing, G., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Hölker, G., Idh, J., Jacobs, P., Kampert, K. H., Kolb, B. W., Löhner, H., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A. M., Purschke, M., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Sørensen, S. P., Steffens, K., Steinhaeuser, P., Stenlund, E., Stüken, D., Young, G. R., and WA80 Collaboration

Published
1995
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2. Two-proton correlations in the target fragmentation region of nuclear collisions at 200A GeV

Author

Awes, T. C., Barlag, C., Berger, F., Bloomer, M. A., Blume, C., Bock, D., Bock, R., Bohne, E. -M., Bucher, D., Claussen, A., Clewing, G., Dragon, L., Eklund, A., Garpman, S., Glasow, R., Gustafsson, H., Gutbrod, H. H., Hölker, G., Idh, J., Jacobs, P., Kampert, K. H., Kolb, B. W., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A. M., Purschke, M., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Sørensen, S. P., Steffens, K., Steinhaeuser, P., Stenlund, E., Stüken, D., Young, G. R., and WA80 Collaboration

Published
1995
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3. Production of slow singly charged fragments in 200 GeV/c hadron nucleus interactions

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bloomer, M. A., Bock, D., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R., Franz, A., Garpman, S. I. A., Glasow, R., Gustafsson, H. -Å., Gutbrod, H. H., Hölker, G., Idh, J., Jacobs, P., Kampert, K. -H., Kolb, B. W., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A. M., Purschke, M. L., Ritter, H. -G., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Sorensen, S. P., Steinhaeuser, P., Steffens, K., Stenlund, E., Stüken, D., and Young, G. R.

Published
1993
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4. Multiplicity and pseudorapidity distributions of charged particles from32S induced heavy ion interactions at 200A GeV

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bloomer, M. A., Bock, D., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R., Franz, A., Garpman, S. I. A., Glasow, R., Gustafsson, H- Å., Gutbrod, H. H., Hölker, G., Idh, J., Jacobs, P., Kampert, K. -H., Kolb, B. W., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A. M., Purschke, M. L., Ritter, H. -G., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Sorensen, S. P., Steinhaeuser, P., Steffens, K., Stenlund, E., Stüken, D., and Young, G. R.

Published
1992
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5. Bose-einstein correlations in the target fragmentation region in 200A GeV16O+nucleus collisions

Author

Albrecht, R., Awes, T. C., Beckmann, P., Berger, F., Bloomer, M. A., Bock, D., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Hartig, M., Hölker, G., Idh, J., Jacobs, P., Kampert, K. H., Kolb, B. W., Kristiansson, P., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Schmidt, R., Sørensen, S. P., Steffens, K., Steinhauser, P., Stenlund, E., Stüken, D., Tincknell, M. L., Twyhues, A., Young, G. R., and WA80 Collaboration

Published
1992
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6. Upper limit for thermal direct photon production in heavy-ion collisions at 60 and 200A·GeV

Author

Albrecht, R., Awes, T. C., Beckmann, P., Berger, F., Bock, D., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Hölker, G., Idh, J., Jacobs, P., Kampert, K. H., Kolb, B. W., Kristiansson, P., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Saini, S., Schmidt, H. R., Sørensen, S. P., Steffens, K., Stüken, D., Stenlund, E., Tincknell, M., Young, G. R., and WA 80 Collaboration

Published
1991
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7. Transverse energy production in the target fragmentation region in16O-nucleus reactions at 60 and 200A GeV

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Idh, J., Jacobs, P., Kampert, K. H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Saini, S., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorenseh, S. P., Stenlund, E., Tincknell, M., Young, G. R., and WA 80-Collaboration

Published
1990
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8. Transverse momentum distributions of neutral pions from central and peripheral16O+Au collisions at 200A·GeV

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Clewing, G., Dragon, L., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Kampert, K. H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obershain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sørensen, S. P., Stenlund, E., Young, G. R., and WA80 Collaboration

Published
1990
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9. Oxygen-induced reactions at 60A GeV and 200A GeV studied by calorimetry

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Dragon, L., Ferguson, R. L., Franz, A., Garpmann, S., Glasow, R., Gustafsson, H. A., Gutbrod, H. H., Kampert, K. H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Lohner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorensen, S. P., Stenlund, E., Young, G. R., and WA 80 Collaboration

Published
1988
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10. Charged particle spectra in16O induced nuclear collisions at the CERN SPS

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Dragon, L., Ferguson, R. L., Franz, A., Garpman, S. I. A., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Johnson, J. W., Kampert, K. -H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorensen, S. P., Stenlund, E., Young, G. R., and WA80 Collaboration

Published
1988
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11. Global and local fluctuations in multiplicity and transverse energy for central ultra-relativistic heavy-ion interactions

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R., Franz, A., Garpman, S. I. A., Glasow, R., Gustafsson, H. -Å., Gutbrod, H. H., Idh, J., Jacobs, P., Kampert, K. -H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obensham, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. -G., Saini, S., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorensen, S. P., Steffens, K., Stenlund, E., Stüken, D., Tincknell, M., Young, G. R., and WA80-Collaboration

Published
1989
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12. Neutral transverse momentum spectra in 60 and 200A·GeV16O+nucleus and proton+nucleus reactions

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Classon, G., Dragon, L., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. A., Gutbrod, H. H., Kampert, K. H., Kolb, B. W., Pristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Ottrlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorensen, S. P., Stenlung, E., Young, G. R., and WA 80 Collaboration

Published
1988
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13. Target fragmentation in proton-nucleus and16O-nucleus reactions at 60 and 200 GeV/nucleon

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Claesson, G., Berger, F., Bock, R., Dragon, L., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Kampert, K. H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorensen, S. P., Stenlund, E., Young, G. R., and WA 80 Collaboration

Published
1988
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14. Bose-einstein correlations in the target fragmentation region in 200A GeV16O+nucleus collisions

Author

Albrecht, R., Awes, T. C., Beckmann, P., Berger, F., Bloomer, M. A., Bock, D., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Hartig, M., Hölker, G., Idh, J., Jacobs, P., Kampert, K. H., Kolb, B. W., Kristiansson, P., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Schmidt, R., Sørensen, S. P., Steffens, K., Steinhauser, P., Stenlund, E., Stüken, D., Tincknell, M. L., Twyhues, A., and Young, G. R.

Abstract

Correlations between positive pions are investigated in the target fragmentation region of 200A GeV16O+nucleus collisions. The pions are measured with the Plastic Ball detector in the WA80 experiment at the CERN SPS. The target mass dependence of the radii and the correlation strength extracted by interferometry is studied. A new approach to the fit of the correlation function is introduced. The correlation strength and both invariant and transverse radii increase with decreasing target mass. The transverse radius for16O+C reactions appears to be much larger than the geometrical radius of the nuclei involved. For the Au target only a small fraction of the measured pions contributes to the apparent correlation. Hints for a much larger second component in16O+Au reactions are observed. Rescattering phenomena may provide a clue to understand these phenomena.

Published
1992
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15. Transverse momentum distributions of neutral pions from central and peripheral16O+Au collisions at 200A·GeV

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Clewing, G., Dragon, L., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Kampert, K. H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obershain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sørensen, S. P., Stenlund, E., and Young, G. R.

Abstract

The production of neutral pions by the interaction of 200A·GeV p and16O projectiles with a Au target has been studied in the pseudorapidity range 1.5???2.1. Transverse momentum spectra have been measured between 0.4 GeV/c and 3.6 GeV/c and their dependence on the centrality of the collision has been investigated. The peripheral-collision spectra display a marked change of slope with a hard component starting at about 1.8 GeV/c, in contrast to central-collision data. The data are discussed in comparison to p+p and a+a data from the ISR.

Published
1990
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16. Multiplicity and pseudorapidity distributions of charged particles from32S induced heavy ion interactions at 200A GeV

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bloomer, M. A., Bock, D., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R., Franz, A., Garpman, S. I. A., Glasow, R., Gustafsson, H- Å., Gutbrod, H. H., Hölker, G., Idh, J., Jacobs, P., Kampert, K. -H., Kolb, B. W., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Plasil, F., Poskanzer, A. M., Purschke, M. L., Ritter, H. -G., Roters, B., Saini, S., Santo, R., Schmidt, H. R., Sorensen, S. P., Steinhaeuser, P., Steffens, K., Stenlund, E., Stüken, D., and Young, G. R.

Abstract

Multiplicity and pseudorapidity distributions have been measured for32S+Al, Cu, Ag and Au at 200A GeV. The widths of the pseudorapidity distributions increase from central to peripheral collisions. The main contribution is assumed to come from the increasing fraction of charged particles stemming from the fragmentation of the target for peripheral collisions as compared to central collisions. On the average 170–180 charged particles per unit of pseudorapidity are attained for the most central32S+Au events at the maximum of the distribution. The target dependence of the yield of charged particles for central collisions is investigated. In the target rapidity region the yield is directly proportional to the target mass. The transverse energy per charged particle has been studied as a function of centrality and pseudorapidity. The experimental results are compared to the results from the Monte-Carlo model VENUS 3.11 which includes rescattering among secondaries. A comparison between different centrality triggers is made.

Published
1992
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17. Transverse energy production in the target fragmentation region in16O-nucleus reactions at 60 and 200A GeV

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Clewing, G., Dragon, L., Eklund, A., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Idh, J., Jacobs, P., Kampert, K. H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Saini, S., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorenseh, S. P., Stenlund, E., Tincknell, M., and Young, G. R.

Abstract

Charged pion yields and transverse energies of baryons are measured for the reaction16O+Cu, Ag, Au at 60 and 200A GeV bombarding energy in the target fragmentation region employing the Plastic Ball detector. Only little dependence of the measured quantities on the bombarding energy is found. The data are compared with the multi-chain fragmentation model of Ranft. As a result it turns out that a leading order formation zone cascade is not sufficient to explain the baryon yield and the transverse energies of baryons in the target fragmentation region.

Published
1990
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18. Charged particle spectra in16O induced nuclear collisions at the CERN SPS

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Claesson, G., Dragon, L., Ferguson, R. L., Franz, A., Garpman, S. I. A., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Johnson, J. W., Kampert, K. -H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorensen, S. P., Stenlund, E., and Young, G. R.

Abstract

Charged particle multiplicity distributions and pseudo-rapidity density distributions from16O induced nuclear collisions at 200 and 60A GeV are presented. The data were taken, using a minimumbias trigger, with the WA80 set-up at the CERN SPS. In this presentation we focus on how the yield of charged particles depends on the projectile energy, the mass number of the target nucleus and the energy measured in a uranium-plastic sampling calorimeter covering angles close to zero degrees. The data are compared to simulations from the event generator FRITIOF.

Published
1988
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19. Neutral transverse momentum spectra in 60 and 200A·GeV16O+nucleus and proton+nucleus reactions

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Berger, F., Bock, R., Classon, G., Dragon, L., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. A., Gutbrod, H. H., Kampert, K. H., Kolb, B. W., Pristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Ottrlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorensen, S. P., Stenlung, E., and Young, G. R.

Abstract

Transverse momentum (pT) distributions fo inclusive photons and neutral pions at midrapidity are measured with a lead glass calorimeter in 60 and are measured with a lead glass calorimeter in 60 and 200A·Gev16O+nucleus and and proton+nucleus reactions. Inclusive photon distributions are compared for central and peripheral reactions. The degree of centrality is determined either from the charged particle multiplicity or from the remaining projectile energy in the forward direction. Deviations from a nucleus+nucleus interaction model based upon linear extrapolation from p+p reactions are observed in central16O+Au data. The variation of theaverage transverse momentum is investigated as function of centrality. The target-mass and energy dependence of p0pT distributions are presented. For16O+Au a change of slope in these distributions is observed atpt˜0.8 GeV/c compatible with hydrodynamic expansion models.

Published
1988
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20. Target fragmentation in proton-nucleus and16O-nucleus reactions at 60 and 200 GeV/nucleon

Author

Albrecht, R., Awes, T. C., Baktash, C., Beckmann, P., Claesson, G., Berger, F., Bock, R., Dragon, L., Ferguson, R. L., Franz, A., Garpman, S., Glasow, R., Gustafsson, H. Å., Gutbrod, H. H., Kampert, K. H., Kolb, B. W., Kristiansson, P., Lee, I. Y., Löhner, H., Lund, I., Obenshain, F. E., Oskarsson, A., Otterlund, I., Peitzmann, T., Persson, S., Plasil, F., Poskanzer, A. M., Purschke, M., Ritter, H. G., Santo, R., Schmidt, H. R., Siemiarczuk, T., Sorensen, S. P., Stenlund, E., and Young, G. R.

Abstract

Target remnants withZ<3 from proton-nucleus and16O-nucleus reactions at 60 and 200 GeV/nucleon were measured in the angular range from 30° to 160° (-1.716O-induced reactions (˜300 MeV/c) than in proton-induced reactions (˜130 MeV/c). The baryon rapidity distributions are roughly in agreement with one-fluid hydrodynamical calculations at 60 GeV/nucleon16O+Au but are in disagreement at 200 GeV/nucleon, indicating the higher degree of transparency at the higher bombarding energy. Both, the transverse momenta of target spectators and the entropy produced in the target fragmentation region are compared to those attained in head-on collisions of two heavy nuclei at Bevalac energies. They are found to be comparable or do even exceed the values for the participant matter at beam energies of about 1–2 GeV/nucleon.

Published
1988
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