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1. Jet measures and hadronic event shapes at the CERN $$\bar p$$ p collider

Author

Ansari, R., Bagnaia, P., Banner, M., Battiston, R., Bernlöhr, K., Booth, C., Borer, K., Borghini, M., Carboni, G., Cavasinni, V., Cenci, P., Chollet, J. -C., Clark, A. G., Conta, C., Costantini, F., Darriulat, P., De Lotto, B., Del Prete, T., DiLella, L., Dines-Hansen, J., Einsweiler, K., Fayard, L., Ferrari, R., Fraternali, M., Froidevaux, D., Gaillard, J. -M., Gildemeister, O., Goggi, V. G., Gössling, C., Hahn, B., Hänni, H., Hansen, J. R., Hansen, P., Hara, K., Harnew, N., Hugentobler, E., Iacopini, E., Iconomidou-Fayard, L., Jakobs, K., Jenni, P., Kluge, E. E., Kofoed-Hansen, O., Lançon, E., Lariccia, P., Livan, M., Loucatos, S., Madsen, B., Mansoulié, B., Mantovani, G. C., Mapelli, L., Meier, K., Merkel, B., Möllerud, R., Moniez, M., Moning, R., Morganti, M., Onions, C., Parker, M. A., Parrour, G., Pastore, F., Pepe, M., Petridou, Ch., Plothow-Besch, H., Polverel, M., Rasmussen, L., Repellin, J. -P., Rimoldi, A., Roussarie, A., Ruhlmann, V., Sauvage, G., Schacher, J., Stapnes, S., Stocker, F., Swartz, M., Teiger, J., Tsang, W. Y., Valdata-Nappi, M., Vercesi, V., Weidberg, A. R., Wunsch, M., Zaccone, H., and UA 2 Collaboration

Published
1987
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2. Inclusive particle production in the transverse momentum range between 0.25 and 40 GeV/c at the CERN $$Sp\bar pS$$ collider

Author

Banner, M., Bloch, Ph., Bonaudi, F., Borer, K., Borghini, M., Chollet, J. C., Clark, A. G., Conta, C., Darriulat, P., Di Lella, L., Hansen, J. Dines, Dorsaz, P. A., Fayard, L., Fraternali, M., Froidevaux, D., Gaillard, J. M., Gildemeister, O., Goggi, V. G., Hahn, B., Hänni, H., Hansen, J. R., Hansen, P., Himel, T., Hungerbühler, V., Jenni, P., Kofoed-Hansen, O., Lançon, E., Livan, M., Loucatos, S., Madsen, B., Mani, P., Mansoulié, B., Mantovani, G. C., Mapelli, L., Merkel, B., Møllerud, R., Onions, C., Parrour, G., Pastore, F., Plothow-Besch, H., Polverel, M., Repellin, J. P., Rimoldi, A., Rothenberg, A., Roussarie, A., Sauvage, G., Schacher, J., Siegrist, J. L., Stocker, F., Teiger, J., Vercesi, V., Weidberg, A., Zaccone, H., Zeller, W., and UA2 Collaboration

Published
1985
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4. A study of three-jet events at the CERN $$\bar pp$$ collider

Author

Appel, J. A., Bagnaia, P., Banner, M., Battiston, R., Bernlöhr, K., Borer, K., Borghini, M., Bürger, J., Carboni, G., Cavasinni, V., Cenci, P., Chollet, J. -C., Clark, A. G., Codino, A., Conta, C., Darriulat, P., De Lotto, B., Del Prete, T., Di Lella, L., Dines-Hansen, J., Einsweiler, K., Engelmann, R., Fayard, L., Fraternali, M., Froidevaux, D., Gaillard, J. -M., Gildemeister, O., Goggi, V. G., Gössling, C., Hahn, B., Hänni, H., Hansen, J. R., Hansen, P., Harnew, N., Himel, T., Iconomidou-Fayard, L., Jakobs, K., Jenni, P., Kluge, E. E., Kofoed-Hansen, O., Lançon, E., Livan, M., Loucatos, S., Madsen, B., Mani, P., Mansoulié, B., Mantovani, G. C., Mapelli, L., Meier, K., Merkel, B., Mollerud, R., Moniez, M., Moning, R., Morganti, M., Onions, C., Parker, M. A., Parrour, G., Pastore, F., Pepe, M., Plothow-Besch, H., Polverel, M., Repellin, J. -P., Rimoldi, A., Rothenberg, A. F., Roussarie, A., Ruhlmann, V., Sauvage, G., Schacher, J., Schlötelburg, M., Stocker, F., Swartz, M., Teiger, J., Tovey, S. N., Tsang, W. Y., Valdata-Nappi, M., Vercesi, V., Weidberg, A. R., Wunsch, M., Zaccone, H., and The UA2 Collaboration

Published
1986
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5. Measurement ofW ± andZ 0 properties at the CERN $$\bar pp$$ p collider

Author

Appel, J. A., Bagnaia, P., Banner, M., Battiston, R., Bernlöhr, K., Borer, K., Borghini, M., Carboni, G., Cavasinni, V., Cenci, P., Chollet, J. -C., Clark, A. G., Codino, A., Conta, C., Darriulat, P., De Lotto, B., Del Prete, T., Di Lella, L., Dines-Hansen, J., Einsweiler, K., Engelmann, R., Fayard, L., Fraternali, M., Froidevaux, D., Gaillard, J. -M., Gildemeister, O., Goggi, V. G., Gössling, C., Hahn, B., Hänni, H., Hansen, J. R., Hansen, P., Harnew, N., Himel, T., Iconomidou-Fayard, L., Jakobs, K., Jenni, P., Kluge, E. E., Kofoed-Hansen, O., Lançon, E., Livan, M., Loucatos, S., Madsen, B., Mani, P., Mansoulié, B., Mantovani, G. C., Mapelli, L., Meier, K., Merkel, B., Möllerud, R., Moniez, M., Moning, R., Morganti, M., Nilsson, B., Onions, C., Parker, M. A., Parrour, G., Pastore, F., Pepe, M., Plothow-Besch, H., Polverel, M., Putzer, A., Repellin, J. -P., Rothenberg, A. F., Roussarie, A., Ruhlmann, V., Sauvage, G., Schacher, J., Schlötelburg, M., Stocker, F., Swartz, M., Teiger, J., Tittel, K., Tovey, S. N., Tsang, W. Y., Valdata-Nappi, M., Vercesi, V., Weidberg, A. R., Wunsch, M., Zaccone, H., and UA2 Collaboration

Published
1986
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6. A study of high transverse momentum electrons produced in $$\bar pp$$ collisions at 540 GeV

Author

Bagnaia, P., Banner, M., Battiston, R., Bloch, Ph., Bonaudi, F., Borer, K., Borghini, M., Burger, J., Cenci, P., Chollet, J. -C., Clark, A. G., Conta, C., Darriulat, P., Di Lella, L., Dines-Hansch, J., Dorsaz, P. A., Engelmann, R., Fayard, L., Fraternali, M., Froidevaux, D., Fumagalli, G., Gaillard, J. -M., Gildemeister, O., Goggi, V. G., Gössling, C., Hahn, B., Hänni, H., Hansen, J. R., Hansen, P., Harnew, N., Himel, T., Hungerbühler, V., Jenni, P., Kofoed-Hansen, O., Lançon, E., Livan, M., Loucatos, S., Madsen, B., Mani, P., Mansoulié, B., Mantovani, G. C., Mapelli, L., Merkel, B., Möllerud, R., Nilsson, B., Onions, C., Parrour, G., Pastore, F., Plothow-Besch, H., Polverel, M., Repellin, J. -P., Rimoldi, A., Rothenberg, A., Roussarie, A., Sauvage, G., Schacher, J., Siegrist, J. L., Stimpfl, G., Stocker, F., Swartz, M., Teiger, J., Tovey, S., Vercesi, V., Weidberg, W. R., Zaccone, H., Zakrzewski, J. A., Zeller, W., and The AU2 Collaboration

Published
1984
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7. Measurement of production and properties of jets at the CERN $$\bar pp$$ collider

Author

Bagnaia, P., Banner, M., Battiston, R., Bloch, Ph., Bonaudi, F., Borer, K., Borghini, M., Chollet, J. -C., Clark, A. G., Conta, C., Darriulat, P., Di Lella, L., Dines-Hansen, J., Dorsaz, P. -A., Fayard, L., Fraternali, M., Froidevaux, D., Fumagalli, G., Gaillard, J. -M., Gildemeister, O., Goggi, V. G., Hahn, B., Hänni, H., Hansen, J. R., Hansen, P., Himel, T., Hungerbühler, V., Jenni, P., Kofoed-Hansen, O., Lançon, E., Livan, M., Loucatos, S., Madsen, B., Mani, P., Mansoulié, B., Mantovani, G. C., Mapelli, L., Merkel, B., Møllerud, R., Onions, C., Parrour, G., Psstore, F., Plothow-Besch, H., Polverel, M., Repellin, J. -P., Rimoldi, A., Rothenberg, A., Roussarie, A., Sauvage, G., Schacher, J., Siegrist, J. L., Steiner, H. M., Stimpfl, G., Stocker, F., Teiger, J., Vercesi, V., Weidberg, A., Zaccone, H., Zeller, W., and UA2 Collaboration

Published
1983
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10. Search for exotic processes at the CERN p$\overline{p}$ collider

Author

Ansari, R, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Booth, C N, Borer, K, Borghini, Michel, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J C, Clark, A G, Conta, C, Costantini, F, Darriulat, Pierre, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, Kevin F, Fayard, Louis, Ferrari, R, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Hara, K, Harnew, N, Hugentobler, E, Iacopini, E, Iconomidou-Fayard, L, Jacobs, K, Jenni, Peter, Kluge, E E, Kofoed-Hansen, Otto Møgens, Lançon, E, Lariccia, P, Livan, M, Loucatos, Sotirios S, Madsen, B, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, Christopher J, Pal, T, Parker, M A, Parrour, G, Pastore, F, Pepé, M, Petridou, C, Plothow-Besch, Hartmute, Polverel, M, Rasmussen, L, Repellin, J P, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Stapnes, Steinar, Stocker, F, Swartz, M, Teiger, J, Tsang, W Y, Valdata-Nappi, M, Vercesi, V, Weidberg, A R, Wunsch, M, and Zaccone, Henri

Subjects
Particle Physics - Experiment
Published
1987

11. Inclusive charged and neutral particle production and search for relativistic particles with fractional electric charge at the CERN p$\overline{p}$ collider

Author

Banner, M, Bloch, P, Bonaudi, Franco, Borer, K, Borghini, Michel, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Dorsaz, P A, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Grote, H, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Himel, Thomas M, Hungerbühler, V, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Mermikides, Michael E, Møllerud, R, Nilsson, B, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Prévot, N, Repellin, J P, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Stocker, F, Teiger, J, Vercesi, V, Williams, H H, Zaccone, Henri, Zeller, W, and Zylberstejn, A

Subjects
XX, Particle Physics - Experiment
Published
1983

12. A study of three-jet events at the CERN {Mathematical expression} collider

Author

Appel, JA, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Borer, K, Borghini, M, Bürger, J, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J-C, Clark, AG, Codino, A, Conta, C, Darriulat, P, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, K, Engelmann, R, Fayard, L, Fraternali, M, Froidevaux, D, Gaillard, J-M, Gildemeister, O, Goggi, VG, Gössling, C, Hahn, B, Hänni, H, Hansen, JR, Hansen, P, Harnew, N, Himel, T, Iconomidou-Fayard, L, Jakobs, K, Jenni, P, Kluge, EE, Kofoed-Hansen, O, Lançon, E, Livan, M, Loucatos, S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, GC, Mapelli, L, Meier, K, Merkel, B, Mollerud, R, Moniez, M, Moning, R, Morganti, M, Onions, C, Parker, MA, Parrour, G, Pastore, F, Pepe, M, Plothow-Besch, H, Polverel, M, Repellin, J-P, Rimoldi, A, Rothenberg, AF, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Schlötelburg, M, Stocker, F, Swartz, M, Teiger, J, Tovey, SN, Tsang, WY, Valdata-Nappi, M, Vercesi, V, Weidberg, AR, Wunsch, M, and Zaccone, H

Subjects
High Energy Physics::Experiment
Abstract

The UA2 experiment, running at the CERN SPS {Mathematical expression} Collider, has performed a study of events containing three hard jets in the final state. The angular distributions of the three jets show evidence for gluon bremsstrahlung, in good agreement with a QCD model to leading order in the strong coupling constant αs. The yield of three-jet events relative to that of two-jet events provides a measure of the strong coupling constant: ;3K3/K2=0.23±0.01±0.04, where K2 and K3 represent the contributions arising from higher order corrections in α3 to the two- and three-jet exclusive cross-sections. A detailed discussion of the systematic and theoretical uncertainties is given. © 1986 Springer-Verlag.

Published
1986

13. Experimental study of the emergence of two-jet dominance in $\overline{p}$p collisions at $\sqrt{s}$ = 630 GeV

Author

Appel, J A, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Borer, K, Borghini, Michel, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, Kevin F, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Harnew, N, Himel, Thomas M, Iconomidou-Fayard, L, Jenni, Peter, Kluge, E E, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, Christopher J, Parker, M A, Parrour, G, Pastore, F, Pepé, M, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rimoldi, A, Rothenberg, A F, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Schlötelburg, M, Stocker, F, Swartz, M, Teiger, J, Tovey, Stuart N, Tsang, W Y, Valdata-Nappi, M, Vercesi, V, Weidberg, A R, Wunsch, M, and Zaccone, Henri

Subjects
Particle Physics - Experiment
Published
1985

14. A new search for relativistic particles with fractional electric charge at the CERN p$\overline{p}$ collider

Author

Banner, M, Bloch, P, Borer, K, Borghini, Michel, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Dorsaz, P A, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Himel, Thomas M, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Møllerud, R, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Repellin, J P, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Stocker, F, Teiger, J, Vercesi, V, Zaccone, Henri, and Zeller, W

Subjects
Particle Physics - Experiment
Published
1985

15. A search for relativistic particles with fractional electric charge at the CERN $\overline{p}$p collider

Author

Banner, M, Bloch, P, Bonaudi, Franco, Borer, K, Borghini, Michel, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Dorsaz, P A, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Grote, H, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Himel, Thomas M, Hungerbühler, V, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Mermikides, Michael E, Møllerud, R, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Repellin, J P, Ringel, J, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Stocker, F, Teiger, J, Vercesi, V, Williams, H H, Zaccone, Henri, and Zeller, W

Subjects
Particle Physics - Experiment
Published
1982

16. Measurement of jet production properties at the CERN $\overline{p}$p collider

Author

Bagnaia, P, Banner, M, Battiston, R, Bloch, P, Borer, K, Borghini, Michel, Bürger, J, Cenci, P, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Harnew, N, Himel, Thomas M, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Møllerud, R, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Stimpfl, G, Stocker, F, Swartz, M, Teiger, J, Tovey, Stuart N, Vercesi, V, Weidberg, A R, Zaccone, Henri, Zakrzewski, J A, and Zeller, W

Subjects
Particle Physics - Experiment
Published
1984

17. Observation of very large transverse momentum jets at the CERN $\overline{p}$p collider

Author

Banner, M, Bloch, P, Bonaudi, Franco, Borer, K, Borghini, Michel, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Dorsaz, P A, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Grote, H, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Himel, Thomas M, Hungerbühler, V, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Livan, M, Loucatos, Sotirios S, Madsen, B, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Mermikides, Michael E, Møllerud, R, Nilsson, B, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Repellin, J P, Ringel, J, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Stocker, F, Teiger, J, Vercesi, V, Williams, H H, Zaccone, Henri, and Zeller, W

Subjects
Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract

The distribution of total transverse energy Sigma E/sub T/ over the pseudorapidity interval -1( eta (1 and an azimuthal range Delta phi =300 degrees has been measured in the UA2 experiment at the CERN pp collider ( \sqrt{s}=540 GeV) using a highly segmented total absorption calorimeter. In the events with the very large Sigma E/sub T/ ( Sigma E/sub T/>or approximately=60 GeV) most of the transverse energy is found to be contained in small angular regions as expected for high transverse momentum hadron jets. The authors discuss the properties of a sample of two-jet events with invariant two-jet masses up to 140 GeV/c/sup 2/ and measure the cross section for inclusive jet production in the range of jet transverse momenta between 15 and 60 Ge V/c.

Published
1982

18. Study of electron pairs below the Z0 mass produced in $\overline{p}$p collisions at $\sqrt{s}$ = 540 GeV

Author

Bagnaia, P, Banner, M, Battiston, R, Bloch, P, Borer, K, Borghini, Michel, Bürger, J, Cenci, P, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Harnew, N, Himel, Thomas M, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Møllerud, R, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Stimpfl, G, Stocker, F, Swartz, M, Teiger, J, Tovey, Stuart N, Vercesi, V, Weidberg, A R, Zaccone, Henri, Zakrzewski, J A, and Zeller, W

Subjects
Particle Physics - Experiment
Published
1984

19. Measurement of the $\sqrt{s}$ dependence of jet production at the CERN $\overline{p}$p collider

Author

Appel, J A, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Borer, K, Borghini, Michel, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J C, Clark, A G, Codino, A, Conta, C, Darriulat, Pierre, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, Kevin F, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Harnew, N, Himel, Thomas M, Iconomidou-Fayard, L, Jenni, Peter, Kluge, E E, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, Christopher J, Parrour, G, Pastore, F, Pepé, M, Plothow-Besch, Hartmute, Polverel, M, Putzer, A, Rasmussen, L, Repellin, J P, Rimoldi, A, Rothenberg, A F, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Schlötelburg, M, Stocker, F, Swartz, M, Teiger, J, Tittel, K, Tovey, Stuart N, Tsang, W Y, Valdata-Nappi, M, Vercesi, V, Weidberg, A R, Wunsch, M, and Zaccone, Henri

Subjects
Particle Physics - Experiment
Published
1985

20. Direct photon production in {Mathematical expression} in collisions at {Mathematical expression} GeV

Author

Ansari, R, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Booth, C, Borer, K, Borghini, M, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J-C, Clark, AG, Conta, C, Corona, C, Costantini, F, Darriulat, P, De Lotto, B, Del Prete, T, Di Lella, L, Dines Hansen, J, Einsweiler, K, Fayard, L, Ferrari, R, Fraternali, M, Froidevaux, D, Gaillard, J-M, Gildemeister, O, Goggi, VG, Gössling, C, Hahn, B, Hänni, H, Hansen, JR, Hansen, P, Hara, K, Harnew, N, Hugentobler, H, Iacopini, E, Iconomidou-Fayard, L, Jakobs, K, Jenni, P, Kluge, EE, Kofoed-Hansen, O, Lami, S, Lançon, E, Lariccia, P, Livan, M, Loucatos, S, Madsen, B, Mansoulié, B, Mantovani, GC, Mapelli, L, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, C, Pal, T, Parker, MA, Parrour, G, Pastore, F, Pepe, M, Petridou, C, Plothow-Besch, H, Polverel, M, Rasmussen, L, Repellin, J-P, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Stapnes, S, Stocker, F, Swartz, M, Teiger, J, Tsang, WY, Valdata-Nappi, M, Vercesi, V, Weidberg, AR, Wunsch, M, and Zaccone, H

Subjects
Nuclear Experiment
Abstract

A measurement of the direct production of photons with high transverse momentum from {Mathematical expression} collisions at {Mathematical expression} GeV is presented. The structure of events containing a high transverse momentum photon is studied. The results support predictions from QCD theory. © 1988 Springer-Verlag.

Published
1988

21. Measurement of very large transverse momentum jet production at the CERN $\overline{p}$p collider

Author

Bagnaia, P, Banner, M, Battiston, R, Bloch, P, Borer, K, Borghini, Michel, Bürger, J, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Himel, Thomas M, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Møllerud, R, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rimoldi, A, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Shochet, M J, Siegrist, J L, Stimpfl, G, Stocker, F, Swartz, M, Teiger, J, Vercesi, V, Weidberg, A R, Zaccone, Henri, Zakrzewski, J A, and Zeller, W

Subjects
Particle Physics - Experiment
Published
1984

22. Evidence for Z0 --> e+e- at the CERN $\overline{p}$p collider

Author

Bagnaia, P, Banner, M, Battiston, R, Bloch, P, Bonaudi, Franco, Borer, K, Borghini, Michel, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Dorsaz, P A, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Fumagalli, G, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Grote, H, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Himel, Thomas M, Hungerbühler, V, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Mermikides, Michael E, Møllerud, R, Nilsson, B, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rimoldi, A, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Steiner, H M, Stimpfl, G, Stocker, F, Teiger, J, Vercesi, V, Weidberg, A R, Zaccone, Henri, Zakrzewski, J A, and Zeller, W

Subjects
Particle Physics - Experiment
Published
1983

23. Direct photon production in $\overline{p}$p collisions at $\sqrt{s}$ = 630 GeV

Author

Ansari, R, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Booth, C N, Borer, K, Borghini, Michel, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J C, Clark, A G, Conta, C, Corona, C, Costantini, F, Darriulat, Pierre, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, Kevin F, Fayard, Louis, Ferrari, R, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Hara, K, Harnew, N, Hugentobler, E, Iacopini, E, Iconomidou-Fayard, L, Jakobs, K, Jenni, Peter, Kluge, E E, Kofoed-Hansen, Otto Møgens, Lami, S, Lançon, E, Lariccia, P, Livan, M, Loucatos, Sotirios S, Madsen, B, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, Christopher J, Pal, T, Parker, M A, Parrour, G, Pastore, F, Pepé, M, Petridou, C, Plothow-Besch, Hartmute, Polverel, M, Rasmussen, L, Repellin, J P, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Stapnes, Steinar, Stocker, F, Swartz, M, Teiger, J, Tsang, W Y, Valdata-Nappi, M, Vercesi, V, Weidberg, A R, Wunsch, M, and Zaccone, Henri

Subjects
Particle Physics - Experiment
Published
1988

24. Measurement of W+- and Z0 properties at the CERN $\overline{p}$p collider

Author

Appel, J A, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Borer, K, Borghini, Michel, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J C, Clark, A G, Codino, A, Conta, C, Darriulat, Pierre, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, Kevin F, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Harnew, N, Himel, Thomas M, Iconomidou-Fayard, L, Jakobs, K, Jenni, Peter, Kluge, E E, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Nilsson, B, Onions, Christopher J, Parker, M A, Parrour, G, Pastore, F, Pepé, M, Plothow-Besch, Hartmute, Polverel, M, Putzer, A, Repellin, J P, Rothenberg, A F, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Schlötelburg, M, Stocker, F, Swartz, M, Teiger, J, Tittel, K, Tovey, Stuart N, Tsang, W Y, Valdata-Nappi, M, Vercesi, V, Weidberg, A R, Wunsch, M, and Zaccone, Henri

Subjects
Particle Physics - Experiment
Published
1985

25. Preliminary searches for hadron jets and for large transverse momentum electrons at the SPS $\overline{p}$p collider

Author

Banner, M, Battiston, R, Bloch, P, Bonaudi, Franco, Borer, K, Borghini, Michel, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Dorsaz, P A, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Grote, H, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Himel, Thomas M, Hungerbühler, V, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Mermikides, Michael E, Møllerud, R, Nilsson, B, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Steiner, H M, Stimpfl, G, Stocker, F, Teiger, J, Vercesi, V, Weidberg, A R, Zaccone, Henri, and Zeller, W

Subjects
XX, Particle Physics - Experiment
Published
1983

26. Measurement of jet fragmentation properties at the CERN $\overline{p}$p collider

Author

Bagnaia, P, Banner, M, Battiston, R, Bloch, P, Borer, K, Borghini, Michel, Bürger, J, Cenci, P, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Harnew, N, Himel, Thomas M, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Møllerud, R, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Stimpfl, G, Stocker, F, Swartz, M, Teiger, J, Tovey, Stuart N, Vercesi, V, Weidberg, A R, Zaccone, Henri, Zakrzewski, J A, and Zeller, W

Subjects
Particle Physics - Experiment
Published
1984

27. Measurement of W± and Z0 properties at the CERN {Mathematical expression}p collider

Author

Appel, JA, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Borer, K, Borghini, M, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J-C, Clark, AG, Codino, A, Conta, C, Darriulat, P, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, K, Engelmann, R, Fayard, L, Fraternali, M, Froidevaux, D, Gaillard, J-M, Gildemeister, O, Goggi, VG, Gössling, C, Hahn, B, Hänni, H, Hansen, JR, Hansen, P, Harnew, N, Himel, T, Iconomidou-Fayard, L, Jakobs, K, Jenni, P, Kluge, EE, Kofoed-Hansen, O, Lançon, E, Livan, M, Loucatos, S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, GC, Mapelli, L, Meier, K, Merkel, B, Möllerud, R, Moniez, M, Moning, R, Morganti, M, Nilsson, B, Onions, C, Parker, MA, Parrour, G, Pastore, F, Pepe, M, Plothow-Besch, H, Polverel, M, Putzer, A, Repellin, J-P, Rothenberg, AF, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Schlötelburg, M, Stocker, F, Swartz, M, Teiger, J, Tittel, K, Tovey, SN, Tsang, WY, Valdata-Nappi, M, Vercesi, V, Weidberg, AR, Wunsch, M, and Zaccone, H

Subjects
High Energy Physics::Experiment
Abstract

A study of W± and Z0 properties has been performed using the UA2 detector at the {Mathematical expression} collider. The data correspond to a total integrated luminosity of 142 nb-1 at {Mathematical expression}=546 GeV, and of 310 nb-1 at {Mathematical expression}=630 GeV. The experimental results are compared with the predictions of the Standard Model of the unified electroweak theory. © 1986 Springer-Verlag.

Published
1986

29. A study of three-jet events at the CERN $\overline{p}$p collider

Author

Appel, J A, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Borer, K, Borghini, Michel, Bürger, J, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J C, Clark, A G, Codino, A, Conta, C, Darriulat, Pierre, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, Kevin F, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Harnew, N, Himel, Thomas M, Iconomidou-Fayard, L, Jakobs, K, Jenni, Peter, Kluge, E E, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, Christopher J, Parker, M A, Parrour, G, Pastore, F, Pepé, M, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rimoldi, A, Rothenberg, A F, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Schlötelburg, M, Stocker, F, Swartz, M, Teiger, J, Tovey, Stuart N, Tsang, W Y, Valdata-Nappi, M, Vercesi, V, Weidberg, A R, Wunsch, M, and Zaccone, Henri

Subjects
Particle Physics - Experiment
Published
1985

30. Jet measures and hadronic event shapes at the CERN {Mathematical expression}p collider

Author

Ansari, R, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Booth, C, Borer, K, Borghini, M, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J-C, Clark, AG, Conta, C, Costantini, F, Darriulat, P, De Lotto, B, Del Prete, T, DiLella, L, Dines-Hansen, J, Einsweiler, K, Fayard, L, Ferrari, R, Fraternali, M, Froidevaux, D, Gaillard, J-M, Gildemeister, O, Goggi, VG, Gössling, C, Hahn, B, Hänni, H, Hansen, JR, Hansen, P, Hara, K, Harnew, N, Hugentobler, E, Iacopini, E, Iconomidou-Fayard, L, Jakobs, K, Jenni, P, Kluge, EE, Kofoed-Hansen, O, Lançon, E, Lariccia, P, Livan, M, Loucatos, S, Madsen, B, Mansoulié, B, Mantovani, GC, Mapelli, L, Meier, K, Merkel, B, Möllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, C, Parker, MA, Parrour, G, Pastore, F, Pepe, M, Petridou, C, Plothow-Besch, H, Polverel, M, Rasmussen, L, Repellin, J-P, Rimoldi, A, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Stapnes, S, Stocker, F, Swartz, M, Teiger, J, Tsang, WY, Valdata-Nappi, M, Vercesi, V, Weidberg, AR, Wunsch, M, and Zaccone, H

Subjects
High Energy Physics::Experiment
Abstract

We analyze the energy density distribution in harronic final states as a function of their total transverse energy measured in the segmented central calorimeter of the UA2 detector. The energy dependence of collective shape variables is investigated. The data, collected at the CERN {Mathematical expression}p Collider at {Mathematical expression} GeV, exhibit strong variations in all these variables over the transverse energy range between 15 and 210 GeV, corresponding to substantial modifications in the structure of multihadronic final states. The evolution of the energy density distribution and of the collective shape variables shows a clear transition between two extreme dynamical regimes, respectively dominated by pT-limited phase space and by collimated two-jet configurations. A study of the relative populations of two-and three-jet systems reveals two different sources of configurations having three distinct lobes in the pattern of the energy-flow. A first component, steeply falling with energy, receives substantial contributions from soft parton collisions at lower transverse energies. Above 60 GeV a new hard component emerges, characterized by an approximately constant rate with respect to the dominant two-jet structures. © 1987 Springer-Verlag.

Published
1987

31. Observation of electrons produced in association with hard jets and large missing transverse momentum in p$\overline{p}$ collisions at $\sqrt{s}$ = 540 GeV

Author

Bagnaia, P, Banner, M, Battiston, R, Bloch, P, Borer, K, Borghini, Michel, Bürger, J, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, Di Lella, L, Dines-Hansen, J, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Himel, Thomas M, Jenni, Peter, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Merkel, B, Møllerud, R, Onions, Christopher J, Parrour, G, Pastore, F, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rimoldi, A, Rothenberg, A F, Roussarie, A, Sauvage, G, Schacher, J, Siegrist, J L, Stimpfl, G, Stocker, F, Swartz, M, Teiger, J, Vercesi, V, Weidberg, A R, Zaccone, Henri, Zakrzewski, J A, and Zeller, W

Subjects
Particle Physics - Experiment
Published
1984

32. Direct photon production at the CERN $\overline{p}$p collider

Author

Appel, J A, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Borer, K, Borghini, Michel, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J C, Clark, A G, Conta, C, Darriulat, Pierre, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, Kevin F, Engelmann, R, Fayard, Louis, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Harnew, N, Himel, Thomas M, Iconomidou-Fayard, L, Jakobs, K, Jenni, Peter, Kluge, E E, Kofoed-Hansen, Otto Møgens, Lançon, E, Livan, M, Loucatos, Sotirios S, Madsen, B, Mani, P, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, Christopher J, Parker, M A, Parrour, G, Pastore, F, Pepé, M, Plothow-Besch, Hartmute, Polverel, M, Repellin, J P, Rothenberg, A F, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Schlötelburg, M, Stocker, F, Swartz, M, Teiger, J, Tovey, Stuart N, Tsang, W Y, Valdata-Nappi, M, Vercesi, V, Weidberg, A R, Wunsch, M, and Zaccone, Henri

Subjects
Particle Physics - Experiment
Published
1986

33. Measurement of W and Z production properties at the CERN $\overline{p}$p collider

Author

Ansari, R, Bagnaia, P, Banner, M, Battiston, R, Bernlöhr, K, Booth, C N, Borer, K, Borghini, Michel, Carboni, G, Cavasinni, V, Cenci, P, Chollet, J C, Clark, A G, Conta, C, Costantini, F, Darriulat, Pierre, De Lotto, B, Del Prete, T, Di Lella, L, Dines-Hansen, J, Einsweiler, Kevin F, Fayard, Louis, Ferrari, R, Fraternali, M, Froidevaux, Daniel, Gaillard, Jean-Marc, Gildemeister, O, Goggi, Giorgio V, Gössling, C, Hahn, B, Hänni, H, Hansen, J R, Hansen, P, Hara, K, Harnew, N, Hugentobler, E, Iacopini, E, Iconomidou-Fayard, L, Jakobs, K, Jenni, Peter, Kluge, E E, Kofoed-Hansen, Otto Møgens, Lançon, E, Lariccia, P, Livan, M, Loucatos, Sotirios S, Madsen, B, Mansoulié, B, Mantovani, G C, Mapelli, Livio P, Meier, K, Merkel, B, Møllerud, R, Moniez, M, Moning, R, Morganti, M, Onions, Christopher J, Pal, T, Parker, M A, Parrour, G, Pastore, F, Pepé, M, Petridou, C, Plothow-Besch, Hartmute, Polverel, M, Rasmussen, L, Repellin, J P, Roussarie, A, Ruhlmann, V, Sauvage, G, Schacher, J, Stocker, F, Swartz, M, Teiger, J, Tittel, K, Tovey, Stuart N, Tsang, W Y, Valdata-Nappi, M, Vercesi, V, Weidberg, A R, Wunsch, M, and Zaccone, Henri

Subjects
Particle Physics - Experiment
Published
1987

35. CULTURED PEARL TERMINOLOGY.

Author

Hänni, H. A.

Subjects
*LETTERS to the editor, *CULTURED pearls
Abstract

A letter to the editor is presented in response to the articles "Characteristics of Nuclei in Chinese Freshwater Cultured Pearls" in the Summer 2000 issue and "The Current Status of Chinese Freshwater Cultured Pearls" in the Summer 2001 issue.

Published
2007

38. Contribution of vascular and tubular effects of arginine-vasopressin to the development of deoxycorticosterone acetate (DOCA)-salt hypertension in rats.

Author

Hofbauer KG, Mah SC, Wood JM, Baum HP, Hänni H, Opperman JR, and Kraetz J

Subjects
Animals, Arginine Vasopressin analogs & derivatives, Arginine Vasopressin antagonists & inhibitors, Arginine Vasopressin pharmacology, Arginine Vasopressin toxicity, Blood Pressure drug effects, Hypernatremia chemically induced, Hypertension physiopathology, Male, Rats, Rats, Inbred Strains, Receptors, Angiotensin drug effects, Time Factors, Arginine Vasopressin physiology, Desoxycorticosterone toxicity, Hypertension chemically induced, Receptors, Vasopressin
Abstract

The role of arginine-vasopressin (AVP) in the pathogenesis of deoxycorticosterone acetate (DOCA) salt hypertension in rats was studied with AVP receptor antagonists for its tubular (V2) and/or vascular (V1) actions. When chronic (six weeks) infusion of the antagonists was started concomitantly with DOCA-salt treatment the development of hypertension was attenuated by the V1-antagonist and prevented by the V1V2-antagonist. However, the V1V2-antagonist induced severe and persistent hypernatraemia in all rats. When chronic (two weeks) infusion of the antagonists was started in rats with established hypertension after five weeks of DOCA-salt treatment blood pressure was not influenced by the V1-antagonist. The rats which received the V1V2-antagonist died from hypernatraemia within four days. These results suggest that in DOCA-salt treated rats AVP is essential for the prevention of severe and life-threatening hypernatraemia. AVP appears to contribute significantly to the development of this form of hypertension through both its vascular and tubular effects.

Published
1984

39. Systemic and regional hemodynamic effects of atriopeptin II in anesthetized rats.

Author

Criscione L, Burdet R, Hänni H, Kamber B, Truog A, and Hofbauer KG

Subjects
Animals, Glomerular Filtration Rate drug effects, Heart Rate drug effects, In Vitro Techniques, Male, Myocardial Contraction drug effects, Rats, Rats, Inbred Strains, Renal Circulation drug effects, Vascular Resistance drug effects, Vasodilation, Atrial Natriuretic Factor pharmacology, Hemodynamics drug effects, Kidney drug effects
Abstract

The hemodynamic and renal effects of atriopeptin II were investigated in rats, using electromagnetic flowmeters and thermodilution and clearance techniques, and its direct cardiac effects were studied in isolated rat atria and ventricular muscle strips. Atriopeptin II had no effect on the rate or force of contraction of rat cardiac tissue in vitro. In anesthetized rats, i.v. injections of 1, 3, 5, and 7 micrograms/kg induced only transient hemodynamic effects: blood pressure (BP) was briefly reduced, and renal blood flow (RBF) but not mesenteric blood flow (MBF) increased. Infusions over 30 min at rates of 0.3, 1, 3, and 10 micrograms/kg/min caused a fall in BP, mediated by a reduction of cardiac output (CO); RBF and MBF were decreased in a dose-related manner, and systemic and regional vascular resistances rose. A reduction of RBF was also observed in clearance experiments, but glomerular filtration rate remained unchanged and the filtration fraction increased significantly. Natriuresis occurred at all rates of atriopeptin tested (0.3, 1, and 3 micrograms/kg/min i.v.) These results suggest that i.v. injection of atriopeptin II induces transient hypotensive and regional vasodilatory effects. Upon i.v. infusion, BP is lowered by way of a reduction in CO, which is accompanied by systemic and regional vasoconstriction. The decrease in CO cannot be ascribed to a direct cardiodepressant action, and the effects on regional blood flows are probably due to reflex activation. The natriuretic effects of atriopeptin II are independent of renal vasodilatation and may be attributable to changes in intrarenal hemodynamics or to direct tubular effects.

Published
1987
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