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1. Excitation functions of proton-proton elastic scattering at intermediate energies

Author

W. Scobel, F. Dohrmann, J. Bisplinghoff, F. Hinterberger, M. Altmeier, F. Bauer, T. Bissel, R. Bollmann, M. Busch, K. Büßer, P. Cloth, R. Danie, O. Diehl, H.P. Engelhardt, J. Ernst, P.D. Eversheim, O. Felden, J. Flammer, M. Gasthuber, R. Gebel, J. Greiff, A. Groß, R. Groß-Hardt, K. Hebbel, T. Hüskes, R. Jahn, I. Koch, R. Langkau, T. Lindemann, J. Lindlein, R. Maier, R. Maschuw, T. Mayer-Kuckuk, M. Pfuff, D. Prasuhn, H. Rohdjeß, D. Rosendaal, P. von Rossen, N. Schirm, M. Schulz-Rojahn, V. Schwarz, S. Steinbeck, G. Sterzenbach, S. Thomas, H.J. Trelle, M. Walker, E. Weise, A. Wellinghausen, K. Woller, and R. Ziegler

Subjects
Physics, Elastic scattering, Nuclear and High Energy Physics, Range (particle radiation), Luminosity (scattering theory), Proton, Kinetic energy, Synchrotron, law.invention, Momentum, Nuclear physics, law, Atomic physics, Nuclear Experiment, Excitation
Abstract

Excitation functions of proton-proton elastic cross sections have been measured in narrow momentum steps Δp = 28 MeV/c in the kinetic energy range from 0.5 to 2.5 GeV and the angular range 35° ≤ Θ cm ≤ 90° with a detector providing ΔΘ cm ≈ 1.4° resolution and 82% solid angle coverage. Measurements have been performed continuously during projectile acceleration in the Cooler Synchrotron COSY with an internal CH 2 fiber target; background corrections were derived from measurements with a carbon fiber target and from Monte Carlo simulations of inelastic pp contributions. Particular care was taken to monitor the luminosity as a function of beam energy. The results provide excitation functions and angular distributions of unprecedented precision and internal consistency. The measured cross sections are compared to recent phase shift analyses, and their impact on the present solution SM97 [1] is discussed.

Published
1998
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2. Low-lying Gamow-Teller states inNb92

Author

J. D. Anderson, Wolfgang Scobel, V. R. Brown, S. Stamer, R. Langkau, C. H. Poppe, V. A. Madsen, S. M. Grimes, R. W. Bauer, and B.A. Pohl

Subjects
Nuclear reaction, Baryon, Physics, Nuclear and High Energy Physics, Nuclear Theory, Hadron, Quasiparticle, Elementary particle, Fermion, Atomic physics, Nuclear Experiment, Random phase approximation, Nucleon
Abstract

Cross sections for the (p,n) reaction on targets of $^{90}\mathrm{Zr}$ and $^{92}\mathrm{Zr}$ have been measured at 26 MeV. Our resolution for these measurements was better than 200 keV and allowed the observation of numerous ${1}^{+}$ states in $^{92}\mathrm{Nb}$ below 7 MeV excitation. Our analysis is focused on states below the primary Gamow-Teller state and shows a fragmentation of the Gamow-Teller strength that is only partially accounted for by three different model calculations: a quasiparticle model, a shell model, and a random-phase approximation calculation. All three models yield predictions which include appreciable strength between 3 and 7 MeV excitation, but fail to describe our experimental results in detail. \textcopyright{} 1996 The American Physical Society.

Published
1996
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3. Inclusive charged particle cross sections in photoproduction at HERA

Author

T. Jansen, T. Ahmed, Th. Wolff, I. Tichomirov, G. Rädel, L. Criegee, H. Hufnagel, S. Kermiche, J. Formánek, R. D. Appuhn, M. Hampel, Ph. Huet, C.D. Hilton, M. Gebauer, J. Garvey, Ch. Pichler, A. M. Fomenko, I. R. Kenyon, K. Stephens, E. Peppel, M. Gennis, R. C. W. Henderson, S. Levonian, E. Malinovski, M. Kuhlen, H. Spitzer, P. Baranov, J. Tutas, J. D. Burger, Peter Schleper, G. Grindhammer, C. Bourdarios, R. Prosi, A. Buniatian, Marc Besancon, A.S. Belousov, Sergey Rusakov, P. Truöl, G. Lindström, C. Gruber, M. Nyberg, J. Harjes, S. M. Robertson, Dusan Bruncko, K. Flamm, D. Wegener, W.J. Haynes, A. Mavroidis, P. Goritchev, S. K. Kotelnikov, L. Hajduk, W. Flauger, D. Pitzl, R. Roosen, Mikhail Danilov, D. Lewin, Grzegorz Nowak, J. Martyniak, C. Jacobsson, B. Fominykh, Emmanuel Monnier, Eckhart Fretwurst, Fabian Zomer, B. Naroska, F. Ferrarotto, K. Gamerdinger, T. Köhler, M. W. Krasny, H. Genzel, J. Martens, P. I. P. Kalmus, Michel Devel, J. M. Foster, V. Efremenko, Peter Loch, D. Kant, P. Dingus, W. von Schlippe, K. Johannsen, Kerstin Borras, Didier Lacour, T. Merz, R. J. Ellison, G. Cozzika, J. Hladký, A. Braemer, T. Greenshaw, G. Siegmon, J. Feltesse, J. Ebert, F. Eisele, S. Mikocki, C. A. Meyer, J.P. Phillips, W. Pilgram, Christophe Royon, A. Semenov, K. C. Hoeger, J. Žáček, Steve McMahon, U. Kathage, M. Savitsky, A. Gruber, Peter Schacht, G. C. Lopez, J. Haack, H. Bergstein, Th. Naumann, F. Moreau, J. D. Dowell, A. Jacholkowska, Rosario Martín, J. Ferencei, Leith Godfrey, W. Schmitz, V. Brisson, S. Aid, F. Charles, R. Taylor, P. Van Esch, H. Greif, P. Robmann, P. Fuhrmann, N. Magnussen, M. Goldberg, Max Klein, V. Boudry, H. Duhm, E. Vogel, Gregorio Bernardi, C. Niebuhr, Anton Babaev, M. Rudowicz, J. Marks, S. D. Kolya, S. Mani, L. N. Shtarkov, C. Thiebaux, J. Strachota, Hannes Jung, Mario David, Claus Kleinwort, F. Brasse, J. Turnau, J. Cvach, L. Goerlich, A. Drescher, I. Abt, T. P. Yiou, Stephen Burke, L. R. West, U. Bassler, I.F. Fensome, Winston Ko, E. Gabathuler, E. Deffur, D. Feeken, D. Goldner, P. Kostka, Leif J. Jönsson, Guenter Eckerlin, R. Vick, R. Nisius, André Schöning, C. Vallée, M. Steenbock, A. Lindner, S. J. Maxfiedl, Y. Soloviev, I. Sheviakov, A. Usik, E. Barrelet, A. M. Goodall, Volker Blobel, Ch. Berger, R. Eichler, C. Keuker, H. Lohmander, P. A. Smirnov, U. Krüger, E. Evrard, W. Hildesheim, P. R. Newman, B. Andrieu, A. Gellrich, V. Riech, Karlheinz Meier, P. Ribarics, V. Andreev, G. Villet, R. Felst, Pierre Marage, L. Büngener, D. Mercer, F. Lamarche, B. Schwab, M. Eberle, W. Lange, S. Willard, Roland Bernet, J. R. Smith, J. E. Olsson, W. Bartel, I. W. Walker, R. Herma, Hermann Kolanoski, S. Dagoret, Pavel Murin, H. Grässler, J. Moreels, K. Rybicki, D. Clarke, A. Courau, M. Ibbotson, M. Vecko, T. R. Ebert, John A Coughlan, M. Winde, A. Leuschner, Christoph Grab, L. Johnson, H. Ehrlichmann, E. Eisenhandler, M. Hapke, S. Masson, R. Langkau, Horst Oberlack, F. W. Büsser, W. Braunschweig, A. Fedotov, Günter Flügge, B. Delcourt, R. Sell, S. Kazarian, U. Siewert, A. B. Clegg, Andrew Mehta, N. Gogitidze, Laurent Favart, C. Dollfus, S. Reinshagen, U. Stösslein, V I. Shekelyan, R. Haydar, F. Kole, N. Sahlmann, C. Kiesling, Armen Vartapetian, E. Schuhmann, A. De Roeck, P. C. Bosetti, C. Leverenz, K. Wacker, R. Steinberg, B. Stella, A. Rostovtsev, M. Arpagaus, P. Biddulph, R. Ebbinghaus, M. Zimmer, J. Lipinski, Jean-Francois Laporte, Ulrich Goerlach, L. Urban, G. Franke, M. A. Jabiol, B. Kuznik, T. Kurča, R. L. Lander, M. Ruffer, K. Rosenbauer, M. Flieser, S. Orenstein, G. Bertrand-Coremans, H. Bärwolff, S. Eichenberger, Frank Raupach, J. Stier, R. Kaschowitz, Y. Vazdik, Y. Sirois, Jean-Arcady Meyer, M. Jaffré, H. Meyer, N. Wulff, A. Valkárová, P. Kasselmann, G. Thompson, A. Wegner, M. Colombo, M. Fleischer, S. Riess, H. Ziaeepour, W.D. Dau, J. B. Dainton, J. Kurzhöfer, V. Nagovizin, D. Düllmann, Hans Peter Beck, R. Gerhards, P. Hill, A. W. E. Dann, J. P. Kubenka, H. Henschel, J. Bán, Ch. Ley, U. Seehausen, H. J. Behrend, J.C. Bizot, D. Lüers, Murrough Landon, N. Huot, G. W. Noyes, P. Verrecchia, A. E. Wright, K. Müller, P. E. Reimer, H. Shooshtari, V. Schröder, J. Riedlberger, H. H. Kaufmann, Eckhard Elsen, D. Neyret, Nicolas Ellis, Alan Campbell, E. M. Hanlon, H. Itterbeck, S. Peters, H. K. Nguyen, I. V. Gorelov, O. Hamon, G. G. Winter, R. Grässler, Ch. Coutures, W. Struczinski, Vincent Hedberg, G. Knies, P. Steffen, I. O. Skillicorn, H. B. Dreis, H. P. Wellisch, T. Carli, V. Korbel, F. Linsel, J. Heatherington, D. Newton, P. Lanius, V. Tchernyshov, M. Korn, G. Weber, U. Straumann, H. U. Martyn, F. Ould-Saada, M. Höppner, S. Prell, S. A. Murray, J. Chyla, Martin Erdmann, U. Obrock, F. Niebergall, J. Duboc, C. Schmidt, J. P. Sutton, P. Di Nezza, U. Braun, K. Rauschnabel, E. Binder, H.T. Phillips, M. Schulz, J. Gayler, E. Sanchez, L. Del Buono, O. Dünger, R. Marshall, Dirk Krücker, H. Krehbiel, G. Buschhorn, I. Herynek, L.A. Womersley, A. Walther, W. Zimmermann, J. V. Morris, M. Forbush, A. Schwind, C. Pascaud, A. Lebedev, S. Egli, M. Rietz, D. Haidt, G. Heinzelmann, S. Valkar, H. Küster, D. Lüke, C. Zeitnitz, Dave Sankey, G. D. Patel, W. Scobel, D.P. Johnson, and David Schmidt

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Wire chamber, Particle physics, Elementary particle, HERA, Charged particle, Nuclear physics, Particle mass, Pseudorapidity, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment
Abstract

Cross sections are presented for the inclusive production of charged particles measured in electron-proton collisions at low Q 2 with the H1 detector at HERA. The transverse momentum distribution extends up to 8 GeV/ c . Its shape is found to be harder than that observed in p p collisions at comparable centre-of-mass energies √S γp ≈ √S p p ≈ 200 GeV , and also harder than in γp collisions at lower energies √ S γp ≈ 18 GeV. Results from quantum chromodynamics (QCD) calculations agree with the measured transverse momentum and pseudorapidity cross sections.

Published
1994
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4. Measurement of the proton structure function F2 (x, Q2) in the low-x region at HERA

Author

Steve McMahon, C. A. Meyer, G. Siegmon, A. Drescher, P. Fuhrmann, F. Moreau, J. Hladký, J. D. Dowell, A. Jacholkowska, A. Lebedev, S. Egli, G. Villet, L. Goerlich, S. D. Kolya, M. Rietz, D. Haidt, Pierre Marage, G. Heinzelmann, A. Courau, H. Küster, A. Usik, N. Magnussen, R. C. W. Henderson, N. Sahlmann, P. Biddulph, M. Colombo, J. V. Morris, Frank Raupach, R. Ebbinghaus, M. A. Jabiol, A. E. Wright, J. Tutas, J. D. Burger, N. Wulff, R. Prosi, P. Kasselmann, D. P. C. Sankey, U. Bassler, Daniel Pitzl, M. Forbush, V. Milone, A. Schwind, M. Jaffre, J. E. Olsson, W. Bartel, H. Itterbeck, S. Peters, R. Felst, S. K. Kotelnikov, L. Hajduk, M. Eberle, F. W. Büsser, W. Braunschweig, R. Sell, C. Zeitnitz, V. Korbel, K. C. Hoeger, T. Jansen, U. Siewert, M. Zimmer, Vincent Boudry, Jean-Francois Laporte, G. D. Patel, H. Meyer, Peter Loch, W. Scobel, Vincent Hedberg, G. Rädel, G. Knies, B. Kuznik, Ph. Huet, W. Pilgram, D. Lüers, Ch. Pichler, D.P. Johnson, David Schmidt, J. Haack, I. O. Skillicorn, H. B. Dreis, Ch. Ley, Peter Schacht, G. C. Lopez, W. Schmitz, V. Riech, M. Hapke, R. Bernet, Pavel Staroba, Kerstin Borras, E. Vogel, Gregorio Bernardi, Anton Babaev, G. Cozzika, F. Eisele, A. Buniatian, D. Wegener, W. von Schlippe, A. Semenov, T. Merz, J. Turnau, J. Strachota, W.J. Haynes, P. Verrecchia, I.F. Fensome, P. Goritchev, Stefan Valkar, M. Steenbock, A. Lindner, Volker Blobel, C. Keuker, R. Roosen, Emmanuel Monnier, V. Schröder, S. Kasarian, K. Gamerdinger, T. Köhler, D. Neyret, S. Levonian, K. Rauschnabel, Wolfgang Lange, B. Andrieu, Hannes Jung, K. Johannsen, B. Schwab, C. Vallée, E. Malinovski, Pavel Murin, D. Mercer, H. Grässler, J. Riedlberger, H. K. Nguyen, F. Brasse, E. Binder, M. Ibbotson, H. H. Kaufmann, Eckhard Elsen, Leif J. Jönsson, M. Nyberg, J. Harjes, Christophe Royon, P. Baranov, Laurent Favart, C. Dollfus, I. V. Gorelov, K. Müller, J. Gayler, Jean-Arcady Meyer, V. Efremenko, Mario David, F. Linsel, Peter Schleper, Ulrich Goerlach, R. Grässler, Ch. Coutures, W. Struczinski, J. Heatherington, J. M. Foster, R. Kaschowitz, S. M. Robertson, R. Gerhards, P. Závada, E. Evrard, M. Savitsky, E. Sanchez, S. Riess, M. Kuhlen, H. Lohmander, G. Grindhammer, S. Mikocki, K. Flamm, A. Mavroidis, D. Newton, L. N. Shtarkov, Leith Godfrey, Marc Besancon, J. Cvach, F. Zomer, A. M. Goodall, L. Del Buono, Winston Ko, B. Delcourt, A.S. Belousov, Sergey Rusakov, U. Stösslein, P. Lanius, C. Pascaud, I. W. Walker, K. Rybicki, J. Duboc, B. Stella, S. Kermiche, P. I. P. Kalmus, P. Hill, J. Bán, P. Truöl, Mikhail Danilov, Peter Robmann, D. Lewin, H. Greif, L. Criegee, Stephen Maxfield, C. Leverenz, V. Tchernyshov, A. Leuschner, Christoph Grab, O. Hamon, Nicolas Ellis, Guenter Eckerlin, J. Martyniak, E. Barrelet, R. Vick, M. Vecko, A. B. Clegg, Andrew Mehta, T. Ahmed, J. Formánek, A. Bischoff, Th. Wolff, M. Rudowicz, Yves Sirois, H. Shooshtari, I. R. Kenyon, I. Abt, M. Korn, J. Lipinski, R. Nisius, B. Fominykh, G. Franke, J. Žáček, S. Masson, R. Langkau, M. Ruffer, Armen Vartapetian, G. Thompson, S. Orenstein, G. Weber, U. Straumann, H. Spitzer, Ch. Berger, O. Dünger, J. Ebert, R. J. Ellison, L.A. Womersley, R. L. Lander, H. Bärwolff, A. Gellrich, F. Lamarche, S. Mani, R. D. Appuhn, D. Düllmann, J. R. Smith, H. P. Beck, Eckhart Fretwurst, S. Eichenberger, H. Henschel, Stephen Burke, R. Herma, I. Tichomirov, E. Eisenhandler, L. Büngener, J. Martens, H. J. Behrend, J.C. Bizot, M. Goldberg, M. Gennis, M. Fleischer, Hermann Kolanoski, D. Clarke, Michel Devel, John A Coughlan, K. Meier, Horst Oberlack, A. Walther, S. Prell, F. Kole, G. Bertrand-Coremans, G. Lindström, C. Gruber, W. Flauger, L. Smolik, U. Seehausen, H. Hufnagel, W. Zimmermann, I. Herynek, J. Garvey, A. M. Fomenko, A. Wegner, C.D. Hilton, P. Kotska, Grzegorz Nowak, C. Jacobsson, C. Schmidt, J. P. Sutton, U. Braun, N. Huot, H. Ziaeepour, H.T. Phillips, M. Schulz, J. Kurzhöfer, V. Nagovizin, W.D. Dau, A. W. E. Dann, J. B. Dainton, R. Eichler, M. W. Krasny, Claire Bourdarios, R. Marshall, Dirk Krücker, U. Kathage, D. Handschuh, K. Stephens, E. Peppel, H. Krehbiel, V. Brisson, J. P. Kubenka, C. Thiebaux, G. Buschhorn, G. W. Noyes, P. Dingus, J. Feltesse, Max Klein, P. A. Smirnov, F. Charles, I. Sheviakov, U. Krüger, J. Stier, J. Marks, S. Dagoret, Y. Vazdik, H. Bergstein, Th. Naumann, Vladimir Andreev, H. U. Martyn, H. Duhm, V I. Shekelyan, R. Haydar, P. C. Bosetti, E. Gabathuler, E. Deffur, K. Wacker, P. Ribarics, R. Steinberg, Y. Soloviev, J. Moreels, T. R. Ebert, Dusan Bruncko, P. E. Reimer, Alan Campbell, E. M. Hanlon, G. G. Winter, A. Fedotov, Günter Flügge, T. P. Yiou, P. Steffen, B. Naroska, F. Ferrarotto, H. P. Wellisch, C. Kiesling, A. De Roeck, T. Carli, Richard E. Taylor, F. Ould-Saada, H. Genzel, L. Urban, T. Kurča, T. Greenshaw, J.P. Phillips, Rosario Martín, J. Ferencei, P. Van Esch, A. Rostovtsev, Claus Kleinwort, S. Reinshagen, M. Arpagaus, W. Hildesheim, S. Willard, M. Winde, L. Johnson, D. Feeken, A. Valkarova, S. A. Murray, Martin Erdmann, U. Obrock, F. Niebergall, and M. P. J. Landon

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Range (particle radiation), Luminosity (scattering theory), Neutral current, Proton, Detector, Elementary particle, HERA, Atomic physics, Deep inelastic scattering
Abstract

A measurement of the proton structure function F2 (x, Q2) is presented with about 1000 neutral current deep inelastic scattering events for Bjorken x in the range x ⋍ 10−2 – 10−4 and Q2 > 5 GeV2. The measurement is based on an integrated luminosity of 22.5 nb−1 recorded by the H1 detector in the first year of HERA operation. The structure function F2 (x, Q2) shows a significant rise with decreasing x.

Published
1993
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5. Measurement of inclusive jet cross sections in photoproduction at HERA

Author

J. Duboc, B. Stella, Kerstin Borras, A. Lebedev, A. Semenov, M. Rietz, C. Vallée, M. Colombo, R. D. Appuhn, Vladimir Andreev, H. Greif, M. Gennis, N. Magnussen, G. Lindström, C. Gruber, W. Flauger, H. Bergstein, S. D. Kolya, D. Haidt, Th. Naumann, F. Brasse, R. C. W. Henderson, M. Rudowicz, N. Sahlmann, Murrough Landon, A. E. Wright, H. Duhm, J-P. Meyer, P. Biddulph, R. Ebbinghaus, W. von Schlippe, T. Merz, M. Ibbotson, E. Deffur, K. C. Hoeger, G. Heinzelmann, M. A. Jabiol, J. Tutas, J. D. Burger, F. Ould-Saada, R. Prosi, F. Zomer, A. M. Goodall, R. Bernet, P. Kostka, A. Buniatian, M. Jaffre, P. Ribarics, D. Wegener, W.J. Haynes, U. Bassler, M. Fleischer, Leith Godfrey, C. Kiesling, H. Itterbeck, S. Peters, V. Riech, Armen Vartapetian, J. E. Olsson, W. Bartel, E. Malinovski, M. Kuhlen, Y. Soloviev, L. Del Buono, V. Milone, S. Kasarian, S. A. Murray, H. Küster, J. Feltesse, M. Hapke, K. Rauschnabel, Wolfgang Lange, Leif J. Jönsson, R. Roosen, Emmanuel Monnier, T. Köhler, M. W. Krasny, Mario David, E. Binder, J. V. Morris, V. Efremenko, H. Lohmander, G. Siegmon, Martin Erdmann, R. Felst, U. Obrock, Grzegorz Nowak, C. Jacobsson, M. Eberle, M. Korn, L.A. Womersley, R. Nisius, F. W. Büsser, M. Arpagaus, W. Braunschweig, F. Niebergall, V. Korbel, J. Stier, K. Rybicki, Vincent Hedberg, G. Knies, L. Smolik, U. Seehausen, K. Johannsen, S. Mikocki, M. Forbush, Max Klein, R. L. Lander, R. J. Ellison, J. Marks, R. Gerhards, J. M. Foster, H. Bärwolff, Y. Vazdik, J. Riedlberger, A. Schwind, R. Sell, E. Sanchez, G. Weber, U. Straumann, M. Nyberg, T. Ahmed, Th. Wolff, P. E. Reimer, Christophe Royon, F. Moreau, L. N. Shtarkov, J. D. Dowell, C. A. Meyer, M. Vecko, J. R. Smith, I. R. Kenyon, Alan Campbell, J. Harjes, J. Moreels, J. Haack, E. M. Hanlon, S. M. Robertson, R. Herma, W. Hildesheim, H. U. Martyn, U. Siewert, I. O. Skillicorn, T. R. Ebert, A. Walther, A. Jacholkowska, H. Spitzer, D. Mercer, G. G. Winter, M. Savitsky, H. B. Dreis, P. A. Smirnov, K. Meier, J. Turnau, A. Fedotov, B. Naroska, Winston Ko, Yves Sirois, P. Fuhrmann, G. Grindhammer, F. Linsel, Günter Flügge, T. P. Yiou, M. Zimmer, S. Willard, P. Baranov, C. Zeitnitz, S. Eichenberger, Dave Sankey, P. Steffen, J. Martens, C. Pascaud, Tim Greenshaw, Jean-Francois Laporte, W. Zimmermann, M. Steenbock, A. De Roeck, Richard E. Taylor, A. Valkarova, J. Heatherington, F. Kole, Guenter Eckerlin, L. Goerlich, Peter Robmann, Peter Schleper, Michel Devel, S. Kermiche, L. Urban, S. Masson, L. Criegee, H. Henschel, T. Kurča, J. Lipinski, R. Vick, D. Newton, G. D. Patel, G. Franke, B. Andrieu, H. Meyer, W. Scobel, A. Bischoff, D.P. Johnson, A. Gellrich, H. P. Wellisch, H. Shooshtari, M. Winde, S. Rusakov, J. Formánek, L. Johnson, F. Lamarche, R. Kaschowitz, J. Cvach, P. Lanius, T. Carli, R. Langkau, T. Jansen, P. Goritchev, V. Tchernyshov, S. Riess, S. Egli, Frank Raupach, Marc Besancon, W.D. Dau, U. Kathage, J. B. Dainton, O. Dünger, K. Gamerdinger, A.S. Belousov, P. Hill, Hermann Kolanoski, D. Clarke, G. Rädel, H.T. Phillips, M. Schulz, B. Kuznik, J. Bán, John A Coughlan, D. Neyret, Claire Bourdarios, J.C. Phillips, K. Stephens, E. Peppel, J. Gayler, P. Truöl, Horst Oberlack, N. Wulff, J. Garvey, Mikhail Danilov, I. Abt, E. Gabathuler, Nicolas Ellis, Ph. Huet, D. Lewin, Stephen Maxfield, Ch. Pichler, J. Žáček, A. M. Fomenko, I. W. Walker, E. Eisenhandler, P. Kasselmann, R. Marshall, S. Prell, A. Leuschner, Christoph Grab, Dirk Krücker, A. B. Clegg, Andrew Mehta, D. Handschuh, H. Krehbiel, J. Martyniak, D. Feeken, G. Buschhorn, S. Levonian, S. Mani, B. Fominykh, N. Huot, D. Lüers, E. Barrelet, H. P. Beck, Stephen Burke, P. Dingus, Pavel Staroba, P. Verrecchia, M. Ruffer, V. Schröder, S. Orenstein, Ch. Berger, H. H. Kaufmann, K. Flamm, Eckhart Fretwurst, A. Mavroidis, L. Büngener, I. Tichomirov, C. Schmidt, J. P. Sutton, U. Braun, J. Ebert, P. I. P. Kalmus, I. Herynek, H. Hufnagel, A. Usik, Ch. Ley, C.D. Hilton, H. K. Nguyen, I. V. Gorelov, K. Müller, R. Grässler, Ch. Coutures, W. Struczinski, D. Schmidt, Peter Schacht, G. C. Lopez, W. Schmitz, E. Vogel, Gregorio Bernardi, V. Boudry, Anton Babaev, C. Thiebaux, J. Strachota, I.F. Fensome, A. Lindner, Volker Blobel, C. Keuker, Petr Zavada, Pavel Murin, V. Brisson, H. Grässler, Laurent Favart, C. Dollfus, F. Charles, I. Sheviakov, Ulrich Goerlach, U. Krüger, S. Dagoret, G. Cozzika, F. Eisele, J. Hladký, Stefan Valkar, Hannes Jung, V I. Shekelyan, R. Haydar, P. C. Bosetti, K. Wacker, R. Steinberg, E. Evrard, Dusan Bruncko, F. Ferrarotto, B. Delcourt, H. Genzel, U. Stösslein, C. Leverenz, O. Hamon, Rosario Martín, J. Ferencei, P. Van Esch, E. Elsen, A. Rostovtsev, Claus Kleinwort, G. Bertrand-Coremans, G. Thompson, A. Wegner, H. Ziaeepour, J. Kurzhöfer, V. Nagovizin, A. W. E. Dann, D. Düllmann, R. Eichler, J. P. Kubenka, G. W. Noyes, H. J. Behrend, J.C. Bizot, M. Goldberg, Steve McMahon, A. Drescher, G. Villet, Pierre Marage, A. Courau, Daniel Pitzl, S. K. Kotelnikov, L. Hajduk, Peter Loch, W. Pilgram, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Damoiseaux, Magali

Subjects
Nuclear and High Energy Physics, Particle physics, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, FOS: Physical sciences, Elementary particle, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Perpendicular, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Detector, Perturbative QCD, HERA, Transverse plane, Pseudorapidity, High Energy Physics::Experiment, Underlying event
Abstract

Inclusive jet cross sections are measured in photoproduction at HERA using the H1 detector. The data sample of e+ p -> e+ + jet + X events in the kinematic range of photon virtualities Q^2 < 1 GeV^2 and photon-proton centre-of-mass energies 95 < W_gammap < 285 GeV represents an integrated luminosity of 24.1 pb^-1. Jets are defined using the inclusive k_T algorithm. Single- and multi-differential cross sections are measured as functions of jet transverse energy E_T^jet and pseudorapidity ��^jet in the domain 5 < E_T^jet < 75 GeV and -1 < ��^jet < 2.5. The cross sections are found to be in good agreement with next-to-leading order perturbative QCD calculations corrected for fragmentation and underlying event effects. The cross section differential in E_T^jet, which varies by six orders of magnitude over the measured range, is compared with similar distributions from p pbar colliders at equal and higher energies., 34 pages, 9 figures and 7 tables

Published
1993
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6. A search for leptoquarks, leptogluons and excited leptons in H1 at HERA

Author

C. Jacobsson, Leith Godfrey, M. Savitsky, Th. Wolff, G. Villet, Pierre Marage, I. R. Kenyon, E. Malinovski, M. Kuhlen, E. Evrard, H. Spitzer, G. Siegmon, C. Zeitnitz, Dave Sankey, G. D. Patel, H. Meyer, W. Scobel, L. Smolik, U. Seehausen, D.P. Johnson, R. Nisius, M. W. Krasny, J. Cvach, A. Courau, M. Colombo, Murrough Landon, J. V. Morris, Michel Devel, U. Kathage, J. Riedlberger, M. Vecko, T. Ahmed, M. Jaffre, W. Ko, J. E. Olsson, W. Bartel, C. A. Meyer, H. U. Martyn, B. Delcourt, M. Forbush, A. Schwind, M. Nyberg, J. Harjes, A. E. Wright, F. Moreau, J. Hladký, J. D. Dowell, S. M. Robertson, Kerstin Borras, U. Stösslein, J. Garvey, A. Semenov, P. Baranov, R. J. Ellison, R. Bernet, A. Jacholkowska, F. W. Büsser, P. Goritchev, E. Gabathuler, C. Leverenz, A. M. Fomenko, W. Braunschweig, P. Fuhrmann, A. Lebedev, F. Charles, M. Rietz, I. Sheviakov, D. Haidt, Peter Schleper, O. Hamon, K. Gamerdinger, R. Sell, R. Herma, I. O. Skillicorn, S. J. McMahon, D. Neyret, L. Goerlich, Andrew Mehta, J. Moreels, G. Heinzelmann, F. Brasse, Leif J. Jönsson, D. Handschuh, H. Itterbeck, S. Peters, U. Krüger, M. Fleischer, U. Siewert, J-P. Meyer, H. Küster, S. Masson, U. Bassler, G. Cozzika, Marc Besancon, E. Barrelet, N. Huot, S. A. Murray, M. Zimmer, W. von Schlippe, A.S. Belousov, F. Eisele, T. Merz, Daniel Pitzl, J. Žáček, S. Dagoret, H. Lohmander, V. Milone, H. Krehbiel, K. Johannsen, J.P. Phillips, Stefan Valkar, M. Ibbotson, T. Jansen, P. Truöl, I. Tichomirov, Christophe Royon, M. Ruffer, Ch. Berger, S. Orenstein, T. R. Ebert, F. Raupach, P. I. P. Kalmus, S. Kasarian, J. Ferencei, V I. Shekelyan, R. Haydar, P. C. Bosetti, G. Rädel, R. Felst, S. K. Kotelnikov, L. Hajduk, C. Trenkel, Hannes Jung, D. Gillespie, B. Kuznik, L. Büngener, Armen Vartapetian, C. Vallée, M. Eberle, Mario David, K. Wacker, R. Steinberg, P. Závada, Ph. Huet, B. Naroska, G. Buschborn, J. M. Foster, Vincent Hedberg, G. Knies, H. Hufnagel, J. Ebert, Hermann Kolanoski, I. Herynek, D. Clarke, M. Korn, R. D. Appuhn, Ch. Pichler, S. Mani, Pavel Murin, D. Mercer, V. Brisson, John A Coughlan, A. Fedotov, G. Nowak, T. P. Yiou, C. Pascaud, H. Grässler, Guenter Eckerlin, R. Vick, Peter Loch, Dusan Bruncko, Martin Erdmann, H. P. Beck, U. Obrock, Stephen Burke, H. Shooshtari, R. D. Martin, F. Niebergall, V. Korbel, N. Wulff, D. Lüers, J. Haack, F. Ferrarotto, W. Pilgram, H. Genzel, M. Gennis, S. Kermiche, Ch. Ley, J. Tutas, J. D. Burger, P. Kasselmann, G. Thompson, R. Prosi, J. Duboc, B. Stella, N. Magnussen, H. Greif, C.D. Hilton, H. B. Dreis, N. Sahlmann, Pavel Staroba, G. Lindström, C. Gruber, S. J. Maxfield, F. Zomer, A. M. Goodall, M. Rudowicz, W. Flauger, R. Langkau, D. Düllmann, P. Biddulph, L. Del Buono, R. Ebbinghaus, A. De Roeck, P. Van Esch, E. Elsen, I. Abt, Richard E. Taylor, H. J. Behrend, J.C. Bizot, A. Rostovtsev, Claus Kleinwort, M. Goldberg, M. A. Jabiol, S. Eichenberger, G. Bertrand-Coremans, H. K. Nguyen, I. V. Gorelov, K. Müller, Mikhail Danilov, D. Lewin, V. Schröder, A. Drescher, R. Grässler, Ch. Coutures, W. Struczinski, L. Urban, Laurent Favart, H. Henschel, A. Wegner, H. Oberlack, Yves Sirois, A. Valkarova, H. H. Kaufmann, S. Egli, G. Weber, T. Kurča, H. Bärwolff, H. Ziaeepour, J. Kurzhöfer, U. Straumann, V. Nagovizin, A. W. E. Dann, C. Dollfus, L. Criegee, S. Levonian, R. Eichler, J. Martyniak, J. P. Kubenka, A. Usik, J. Lipinski, G. Franke, C. Thiebaux, A. B. Clegg, Vladimir Andreev, B. Fominykh, L.A. Womersley, G. W. Noyes, G. Flügge, I. W. Walker, K. Flamm, P. Schacht, R. Kaschowitz, A. Leuschner, Christoph Grab, A. Mavroidis, S. Rusakov, J. Formánek, A. Walther, J. Stier, Ulrich Goerlach, J. Marks, Y. Vazdik, W. Zimmermann, A. Gellrich, P. Verrecchia, H. Bergstein, S. D. Kolya, Th. Naumann, F. Ould-Saada, H. Duhm, H.T. Phillips, M. Schulz, E. Deffur, I.F. Fensome, P. Kostka, J. Gayler, J. F. Laporte, P. Ribarics, Y. Soloviev, E. Fretwurst, Tim Greenshaw, A. Buniatian, D. Wegener, W.J. Haynes, A. Lindner, R. Roosen, R. Marshall, P. Hill, J. Bán, J. Heatherington, Emmanuel Monnier, T. Köhler, Volker Blobel, C. Keuker, D. Newton, V. Efremenko, S. Mikocki, Nicolas Ellis, D. Schmidt, M. Seman, P. Lanius, G. C. Lopez, W. Schmitz, V. Tchernyshov, E. Vogel, J. Turnau, V. Boudry, Anton Babaev, J. Strachota, M. Steenbock, B. Andrieu, G. Bernardi, D. Krücker, K. C. Hoeger, V. Riech, M. Hapke, C. Schmidt, J. P. Sutton, U. Braun, R. Gerhards, P. E. Reimer, Alan Campbell, E. M. Hanlon, G. G. Winter, K. Rauschnabel, Wolfgang Lange, G. Grindhammer, P. Steffen, E. Binder, H. P. Wellisch, T. Carli, E. Sanchez, Peter Robmann, A. Bischoff, W. Hildesheim, R. C. W. Henderson, J. R. Smith, S. Willard, O. Dünger, M. Winde, J. P. Pharabod, L. Johnson, C. Kiesling, M. Arpagaus, K. Rybicki, Richard Lander, K. Stephens, E. Peppel, E. Eisenhandler, P. Dingus, J. Martens, F. Kole, W.D. Dau, J. B. Dainton, Claire Bourdarios, J. Feltesse, Max Klein, D. Feeken, P. A. Smirnov, and K. Meier

Subjects
Quark, Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, High Energy Physics::Phenomenology, Elementary particle, HERA, Nuclear physics, Excited state, High Energy Physics::Experiment, Leptoquark, Neutrino, Lepton
Abstract

A direct search for new particles in the H1 experiment at HERA is presented for masses ranging from 35 GeV up to ∼ 250 GeV. The data sample of 24 nb −1 accumulated during the first year of operation was analysed for signatures of scalar and vector leptoquarks, leptogluons, excited electrons and excited neutrinos with flavours of the first generation. No evidence for the production of such particles was found in various possible decay channels. Rejection limits are derived.

Published
1993
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7. Observation of deep inelastic scattering at low x

Author

F. W. Büsser, W. Braunschweig, R. Sell, Grzegorz Nowak, G. Cozzika, C. Jacobsson, U. Siewert, M. Zimmer, E. Malinovski, Stefan Valkar, Vincent Boudry, Jean-Francois Laporte, M. Kuhlen, G. Grindhammer, Hannes Jung, C. Vallée, U. Kathage, P. E. Reimer, P. S. Flower, Alan Campbell, E. M. Hanlon, E. Eisenhandler, P. Staroba, G. G. Winter, Vincent Hedberg, J. Turnau, G. Knies, Leif J. Jönsson, M. Steenbock, G. Bertrand-Coremans, P. Steffen, Kerstin Borras, A. Semenov, G. Thompson, F. Brasse, P. Hartz, R. J. Ellison, B. Andrieu, E. Barrelet, H. Lohmander, A. Wegner, H. P. Wellisch, R. Hedgecock, A. Gellrich, R. Kaschowitz, U. Bassler, J. Moreels, D. Düllmann, Ch. Berger, Karlheinz Meier, C. Trenkel, H. Shooshtari, J. Haack, I. O. Skillicorn, P. Zavada, M. Vecko, K. C. Hoeger, D. Handschuh, I. W. Walker, H. Krehbiel, H. Ziaeepour, J. Kurzhöfer, V. Nagovizin, A. W. E. Dann, R. Eichler, J. P. Kubenka, A. Buniatian, D. Wegener, W.J. Haynes, I. Herynek, K. Rybicki, H. Henschel, M. Gennis, Ch. Ley, Hans Peter Beck, A. Leuschner, Christoph Grab, H. J. Behrend, J.C. Bizot, Frank Raupach, M. Goldberg, H. B. Dreis, M. Colombo, V. Riech, U. Berthon, V. Milone, W.D. Dau, E. Evrard, G. W. Noyes, G. Lindström, P. Hill, J. Bán, C. Gruber, R. Roosen, Emmanuel Monnier, W. Flauger, T. Ahmed, Th. Wolff, Murrough Landon, F. Charles, N. Wulff, A. E. Wright, V. Korbel, I. Sheviakov, M. Hapke, T. Köhler, M. W. Krasny, Armen Vartapetian, P. Kasselmann, H. U. Martyn, Matthias Klein, R. C. W. Henderson, Peter Schacht, G. C. Lopez, U. Krüger, Nicolas Ellis, H. Küster, W. Schmitz, B. Delcourt, R. Felst, G. Bushhorn, M. Eberle, I. R. Kenyon, V. Efremenko, F. Zomer, A. M. Goodall, U. Gensch, E. Vogel, Gregorio Bernardi, P. Baranov, Anton Babaev, C. Leverenz, J. Hladký, S. Eichenberger, H. K. Nguyen, O. Hamon, Jean-Arcady Meyer, H.T. Phillips, V I. Shekelyan, R. Haydar, P. C. Bosetti, H. Spitzer, M. Schulz, I. V. Gorelov, K. Müller, J. D. Burger, S. Peters, C. Schmidt, J. Strachota, U. Braun, S. Mikocki, Peter Schleper, K. Wacker, R. Steinberg, R. Grässler, Ch. Coutures, W. Struczinski, Stephen Maxfield, I.F. Fensome, Hermann Kolanoski, R. Prosi, T. R. Ebert, D. Clarke, R. Gerhards, R. Marshall, Dirk Krücker, A. Lindner, K. Rauschnabel, A. Usik, E. Binder, A. B. Clegg, Andrew Mehta, L. Del Buono, Marc Besancon, J. Gayler, Michel Devel, A.S. Belousov, Sergey Rusakov, S. Kermiche, V. Andreev, Volker Blobel, L.A. Womersley, F. Ould-Saada, E. Sanchez, Dusan Bruncko, R. L. Lander, H. Bärwolff, B. Naroska, F. Ferrarotto, P. Truöl, A. Walther, H. Genzel, I. Tichomirov, John A Coughlan, Horst Oberlack, W. Zimmermann, Peter Robmann, M. Ruffer, S. A. Murray, T. Greenshaw, N. Magnussen, S. Orenstein, A. Fedotov, Günter Flügge, T. P. Yiou, J.P. Phillips, Pavel Murin, V. Brisson, H. Grässler, Rosario Martín, J. Ferencei, L. Criegee, H. Hufnagel, P. Van Esch, J. Sacton, N. Sahlmann, A. Rostovtsev, Claus Kleinwort, J. Ebert, O. Dünger, M. Ibbotson, Martin Erdmann, U. Obrock, J. M. Foster, J. Formánek, P. Biddulph, B. Kuznik, M. A. Jabiol, F. Niebergall, Ph. Huet, C.D. Hilton, M. Savitsky, Ch. Pichler, W. von Schlippe, G. Siegmon, C. A. Meyer, T. Merz, J. Cvach, F. Moreau, P. Fuhrmann, J. D. Dowell, R. J. Thompson, Yves Sirois, A. Jacholkowska, Mikhail Danilov, S. D. Kolya, H. Steiner, L. Goerlich, A. Valkarova, D. Levin, J. Martyniak, C. Kiesling, Roland Bernet, S. Kasarian, B. Fominykh, J. Riedlberger, M. Nyberg, J. Harjes, S. M. Robertson, Eckhart Fretwurst, A. De Roeck, Mario David, G. Franke, Richard E. Taylor, R. Nisius, J. R. Smith, L. Urban, S. Mani, R. Herma, Stephen Burke, J. Duboc, B. Stella, T. Kurča, H. Greif, P. Goritchev, K. Gamerdinger, M. Rudowicz, J. Stier, Leith Godfrey, J. Marks, Y. Vazdik, H. Bergstein, C. Zeitnitz, Th. Naumann, Dave Sankey, H. Duhm, E. Gabathuler, E. Deffur, J.M. Morton, P. Kostka, G. D. Patel, P. Ribarics, Y. Soloviev, H. Meyer, W. Scobel, D.P. Johnson, David Schmidt, T. Carli, A. Lebedev, S. Egli, S. Masson, M. Rietz, D. Haidt, G. Heinzelmann, J.P. Sutton, J. V. Morris, D. Lüers, M. Forbush, A. Schwind, P. Verrecchia, V. Schröder, S. Levonian, H. H. Kaufmann, Eckhard Elsen, A. Mavroidis, P. I. P. Kalmus, Y. Feng, G. A. Beck, J. Garvey, A. M. Fomenko, N. Huot, W. Hildesheim, S. Willard, M. Winde, L. Johnson, M. Fleischer, K. Stephens, E. Peppel, M. Arpagaus, L. Smolik, U. Seehausen, K. Johannsen, J. Zacek, Christophe Royon, D. Gillespie, C. Pascaud, Guenter Eckerlin, R. Vick, J. Tutas, D. Feeken, R. Langkau, Laurent Favart, C. Dollfus, E. Ryseck, Ulrich Goerlach, M. Korn, G. Weber, U. Straumann, P. Dingus, J. Heatherington, D. Newton, Daniel Pitzl, M. Seman, P. Lanius, V. Tchernyshov, J. Martens, F. Kole, S. K. Kotelnikov, L. Hajduk, Peter Loch, J. B. Dainton, W. Pilgram, Claire Bourdarios, J. Feltesse, G. Villet, Pierre Marage, A. Courau, P. A. Smirnov, F. Eisele, Steve McMahon, A. Drescher, M. Jaffre, J. E. Olsson, and W. Bartel

Subjects
Nuclear physics, Physics, Nuclear and High Energy Physics, Luminosity (scattering theory), Proton, Neutral current, Scattering, High Energy Physics::Experiment, Elementary particle, Electron, HERA, Nuclear Experiment, Deep inelastic scattering
Abstract

Measurements of the scattered electron energy spectrum and the differential cross sections dσ/d log(x) and dσ/dQ2 for inclusive neutral current deep inelastic electron-proton scattering are presented. The data were obtained with the H1 detector at HERA during its first running period in which 26.7 GeV electrons collided with 820 GeV protons. The data correspond to an integrated luminosity of 1.3 nb−1 and allow the first studies of the structure of the proton at values of x down to 10−4 for Q2 > 5 GeV2.

Published
1993
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8. Influence of Unilateral Vocal Fold Fixation on the Structure of the Intrinsic Laryngeal Muscles

Author

F. Klingholz, F. Martin, and R. Langkau

Subjects
Adenosine Triphosphatases, Male, Linguistics and Language, Chemistry, medicine.medical_treatment, Laryngectomy, Vocal Cords, Anatomy, Middle Aged, LPN and LVN, medicine.disease, Language and Linguistics, Muscular Atrophy, Speech and Hearing, Atrophy, Laryngeal Muscle, medicine, Humans, Phonation, Laryngeal Muscles, Laryngeal Neoplasms, Aged
Abstract

Histomorphometric data (fiber frequencies, fiber diameters, and atrophy factors) were determined in laryngeal muscles [thyroarytenoid (VOC), posterior (PCA) and lateral (LCA) cricoarytenoids, and cricothyroid (CT) muscles]. Seventy-three muscles (43,700 fibers) from normal and carcinoma-infiltrated sides of the larynges of 11 patients were analyzed. The fiber diameters showed uniform values of 24.2 +/- 9.1 microns. Type-I fibers were more frequent in the PCA and less frequent in the LCA and the CT. In the VOC, the ratio was 1:1. The unilateral fixation of a vocal fold modified the structures of the LCA and the CT. The VOC and the PCA were not affected. A hypothesis based on the phonatory function of the CT is used to explain its atrophy.

Published
1993
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9. Total photoproduction cross section measurement at HERA energies

Author

J. D. Burger, M. Colombo, R. Prosi, I.F. Fensome, P. S. Flower, Murrough Landon, A. Lindner, F. Zomer, A. M. Goodall, A. E. Wright, Max Klein, J. M. Foster, Volker Blobel, C. Kiesling, L. Del Buono, M. Savitsky, Leif J. Jönsson, K. C. Hoeger, J. Hladký, D. Schmidt, M. Nyberg, S. Levonian, S. Peters, H. Lohmander, P. A. Smirnov, K. Meier, G. Cozzika, F. Eisele, P. Závada, V. Riech, Peter Schacht, G. C. Lopez, H. Küster, W. Schmitz, J. Cvach, M. Arpagaus, K. Rybicki, T. Ahmed, J.P. Phillips, E. Vogel, Gregorio Bernardi, V. Boudry, Anton Babaev, M. Hapke, K. Stephens, E. Peppel, R. Nisius, R. J. Thompson, Yves Sirois, A. Usik, J. Strachota, Hannes Jung, P. Baranov, B. Kuznik, N. Magnussen, W. Hildesheim, Roland Bernet, N. Sahlmann, Ph. Huet, E. Eisenhandler, Ch. Pichler, Peter Schleper, G. Villet, S. Egli, S. Willard, Pavel Murin, V. Brisson, E. Evrard, G. Franke, H. Grässler, H. Bergstein, J. Riedlberger, Th. Wolff, Stephen Maxfield, J. Harjes, S. M. Robertson, Vincent Hedberg, G. Knies, G. Siegmon, A. Buniatian, Pierre Marage, M. Jaffre, J. E. Olsson, W. Bartel, S. D. Kolya, Th. Naumann, J. Turnau, P. Biddulph, Laurent Favart, P. Dingus, A. B. Clegg, Andrew Mehta, I. R. Kenyon, R. Gerhards, J. Martens, H. Spitzer, D. Wegener, W.J. Haynes, M. Steenbock, F. W. Büsser, Marc Besancon, A.S. Belousov, W. Braunschweig, C. Dollfus, P. Truöl, R. Roosen, A. Courau, M. Winde, B. Delcourt, Emmanuel Monnier, R. Sell, L. Johnson, Ulrich Goerlach, M. Korn, M. A. Jabiol, P. Staroba, I. W. Walker, J. Haack, F. Moreau, J. D. Dowell, P. Goritchev, H. Duhm, U. Siewert, I. Tichomirov, Grazyna Nowak, M. Zimmer, R. Herma, P. E. Reimer, T. Köhler, B. Andrieu, C. Leverenz, A. Leuschner, Christoph Grab, G. Weber, M. Ruffer, Jean-Francois Laporte, S. Orenstein, Michel Devel, I. O. Skillicorn, H. B. Dreis, A. Jacholkowska, S. Mani, M. Vecko, K. Gamerdinger, E. Barrelet, O. Hamon, U. Straumann, Alan Campbell, E. M. Hanlon, J. B. Dainton, Claire Bourdarios, J. Zacek, J. Ebert, A. Gellrich, G. G. Winter, H. Hufnagel, V. Efremenko, E. Deffur, U. Berthon, Frank Raupach, Armen Vartapetian, G. Grindhammer, H. Shooshtari, C. A. Meyer, J. Heatherington, P. Steffen, H. U. Martyn, S. Mikocki, J.M. Morton, N. Wulff, P. Kostka, P. Ribarics, Ch. Ley, Hermann Kolanoski, D. Clarke, John A Coughlan, P. Kasselmann, P. Fuhrmann, C.D. Hilton, G. Thompson, Ch. Berger, Horst Oberlack, Y. Soloviev, H. P. Wellisch, J. Duboc, B. Stella, D. Feeken, H. Greif, S. Kermiche, L. Goerlich, M. Rudowicz, C. Trenkel, D. Düllmann, Mikhail Danilov, H. Steiner, S. Eichenberger, Stephen Burke, U. Bassler, R. L. Lander, H. Bärwolff, Daniel Pitzl, H. J. Behrend, J.C. Bizot, M. Goldberg, L. Criegee, R. Kaschowitz, D. Levin, J. Martyniak, H. K. Nguyen, I. V. Gorelov, K. Müller, V. Milone, W.D. Dau, A. Mavroidis, R. Grässler, Ch. Coutures, W. Struczinski, F. Kole, E. Ryseck, S. Rusakov, J. Formánek, B. Fominykh, Tim Greenshaw, S. K. Kotelnikov, L. Hajduk, R. Felst, P. I. P. Kalmus, M. Eberle, I. Herynek, J. Moreels, Eckhart Fretwurst, J-P. Meyer, Peter Loch, Hans Peter Beck, D. Newton, W. Pilgram, T. Merz, M. Ibbotson, C. Jacobsson, Steve McMahon, T. R. Ebert, M. Seman, S. Kasarian, P. Lanius, P. Hill, J. Bán, V. Tchernyshov, Mario David, A. Fedotov, A. Drescher, M. W. Krasny, Günter Flügge, T. P. Yiou, U. Kathage, E. Malinovski, M. Kuhlen, E. Gabathuler, Nicolas Ellis, Kerstin Borras, A. Semenov, F. Brasse, A. De Roeck, P. Hartz, R. J. Ellison, R. Hedgecock, C. Vallée, Richard E. Taylor, J.R. Smith, M. Gennis, G. Lindström, C. Gruber, W. Flauger, L. Urban, H. Henschel, T. Kurča, J. Stier, J. Marks, Y. Vazdik, G. Bertrand-Coremans, A. Wegner, H. Ziaeepour, J. Kurzhöfer, V. Nagovizin, A. W. E. Dann, R. Eichler, J. P. Kubenka, G. W. Noyes, Peter Robmann, W. von Schlippe, L. Smolik, U. Seehausen, K. Johannsen, F. Charles, Christophe Royon, I. Sheviakov, D. Gillespie, U. Krüger, B. Naroska, J. Sacton, C. Pascaud, Guenter Eckerlin, R. Vick, J. Tutas, V I. Shekelyan, R. Haydar, P. C. Bosetti, O. Dünger, R. Langkau, K. Wacker, R. Steinberg, G. A. Beck, J. Garvey, A. M. Fomenko, Dusan Bruncko, S. A. Murray, F. Ferrarotto, H. Genzel, N. Huot, K. Rauschnabel, E. Binder, Martin Erdmann, H. Obrock, Rosario Martín, F. Niebergall, V. Korbel, J. Ferencei, P. Van Esch, E. Elsen, E. Sanchez, A. Rostovtsev, Claus Kleinwort, L.A. Womersley, A. Valkarova, Vladimir Andreev, U. Gensch, A. Walther, F. Ould-Saada, C. Schmidt, U. Braun, W. Zimmermann, D. Handschuh, H. Krehbiel, D. Lüers, P. Verrecchia, G. Buschhorn, V. Schröder, H. H. Kaufmann, Leith Godfrey, H.T. Phillips, M. Schulz, J. Gayler, S. Masson, R. Marshall, Dirk Krücker, J. V. Morris, Y. Feng, M. Forbush, A. Schwind, A. Lebedev, M. Rietz, D. Haidt, G. Heinzelmann, M. Fleischer, J.P. Sutton, S. Valkar, C. Zeitnitz, Dave Sankey, G. D. Patel, H. Meyer, W. Scobel, D.P. Johnson, T. Carli, R. C. W. Henderson, and J. Feltesse

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Photon, Hadron, Elementary particle, Electron, HERA, Nuclear physics, Cross section (physics), High Energy Physics::Experiment, Center of mass, Nuclear Experiment
Abstract

We present first results on the total photoproduction cross section measurement with the H1 detector at HERA. The data were extracted from low Q2 collisions of 26.7 GeV electrons with 820 GeV protons. The γp total cross section has been measured by two independent methods in the γp center of mass energy range from 90 to 290 GeV. For an average center of mass energy of 195 GeV a value of σtot (γp) = 159 ± 7 (stat.) ± 20 (syst.) μb was obtained.

Published
1993
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10. Hard scattering in γp interactions

Author

Alan Campbell, E. M. Hanlon, G. G. Winter, T. Ahmed, G. Grindhammer, P. Steffen, P. Baranov, M. Jaffre, J. E. Olsson, J-P. Meyer, Peter Schleper, H. P. Wellisch, W. Bartel, C. Schmidt, U. Braun, F. W. Büsser, Marc Besancon, W. Braunschweig, Stephen Maxfield, W. von Schlippe, R. Sell, A. DeRoeck, T. Merz, U. Siewert, M. Zimmer, A.S. Belousov, W. Pilgram, P. Truöl, A. Buniatian, Jean-Francois Laporte, M. Ibbotson, M. Rüffer, P. Loch, I. Tichomirov, D. Wegener, W.J. Haynes, A. B. Clegg, B. Kuznik, Emmanuel Monnier, C. A. Meyer, R. Kaschowitz, K. C. Hoeger, Andrew Mehta, D. Handschuh, H. Krehbiel, Leif J. Jönsson, H. Lohmander, S. Kasarian, Frank Raupach, S. A. Murray, T. Köhler, M. W. Krasny, S. M. Robertson, I. R. Kenyon, H. Spitzer, H. U. Martyn, V. Riech, Ph. Huet, K. Rauschnabel, N. Wulff, Armen Vartapetian, Ch. Pichler, E. Binder, J. Riedlberger, Michel Devel, G. Thompson, V. Efremenko, H. Hufnagel, P. Kasselmann, P. VanEsch, M. Hapke, G. Buschhorn, P. Fuhrmann, P. Hill, J. Bán, S. Mikocki, E. Sanchez, D. Düllmann, E. Vogel, L. Goerlich, R. C. W. Henderson, C.D. Hilton, Kerstin Borras, Vincent Hedberg, G. Knies, S. Orenstein, Nicolas Ellis, H. J. Behrend, J.C. Bizot, M. Goldberg, Martin Erdmann, W. Zimmermann, U. Obrock, J. Moreels, A. Semenov, R. Gerhards, E. Malinovski, J. Ference, H. Steiner, G. Bertrand-Coremans, F. Niebergall, V. Korbel, R. Roosen, N. Magnussen, D. Levin, J. Martyniak, M. Kuhlen, D. Lüers, G. Cozzika, F. Eisele, J.P. Phillips, R. Bernet, Stefan Valkar, L. Criegee, N. Sahlmann, A. Usik, J. Ebert, J. Haack, B. Fominykh, R. Nisius, R. Prosi, F. Brasse, R. L. Lander, Peter Robmann, H. Shooshtari, S. Egli, P. Hartz, I. O. Skillicorn, Hannes Jung, H. B. Dreis, T. R. Ebert, H. Bärwolff, E. Barrelet, S. Rusakov, J. Formánek, P. Biddulph, M. A. Jabiol, J. Zacek, S. Mani, U. Berthon, P. Staroba, A. Wegner, Vladimir Andreev, D. Gillespie, M. Danilov, Ch. Ley, P. Verrecchia, A. Fedotov, Ch. Berger, H. P. Beck, Hermann Kolanoski, D. Clarke, Eckhart Fretwurst, Günter Flügge, Stephen Burke, T. P. Yiou, J. Turnau, D. P. C. Sankey, I. F. Fensome, U. Bassler, R. J. Ellison, I. W. Walker, E. Evrard, O. Dünger, C. Trenkel, M. Steenbock, G. A. Beck, R. Hedgecock, A. Leuschner, Christoph Grab, F. Zomer, A. M. Goodall, H. Ziaeepour, J. Kurzhöfer, B. Andrieu, M. Colombo, V. Milone, Murrough Landon, V. Nagovizin, A. W. E. Dann, W.D. Dau, John A Coughlan, A. Babayev, J. Hladky, R. Eichler, I. Herynek, Horst Oberlack, G. Siegmon, B. Delcourt, A. Lebedev, L. Delbuono, Grzegorz Nowak, C. Vallée, H. K. Nguyen, I. V. Gorelov, K. Müller, M. Schulz, J. Gayler, R. Grässler, Ch. Coutures, W. Struczinski, A. E. Wright, V. Schröder, R. Felst, Richard E. Taylor, M. Eberle, J. M. Foster, C. Leverenz, J. Duboc, B. Stella, S. Eichenberger, H. Greif, F. Ould-Saada, O. Hamon, J. P. Kubenka, M. Savitsky, L. A. Womersley, P. Zavada, M. Vecko, L. Urban, R. J. Thompson, Yves Sirois, U. Gensch, M. Rietz, H. Henschel, F. Moreau, H. H. Kaufmann, J. D. Dowell, M. Rudowicz, J. Cvach, T. Kurča, J. R. Smith, R. Marshall, Dirk Krücker, S. Peters, A. Jacholkowska, R. Herma, U. Kathage, M. Gennis, D. Haidt, Dusan Bruncko, G. Franke, E. Gabathuler, F. Ferrarotto, H. Genzel, G. Lindström, C. Gruber, W. Flauger, Leith Godfrey, A. Walther, M. Nyberg, J. Harjes, P. Goritchev, A. Valkarova, Rosario Martín, K. Gamerdinger, E. Elsen, J. Marks, H. Bergstein, A. Rostovtsev, S. D. Kolya, Claus Kleinwort, Th. Naumann, H. Duhm, F. Charles, I. Sheviakov, E. Deffur, U. Krüger, J.M. Morton, P. Kostka, P. Ribarics, Y. Soloviev, M. David, V I. Shekelyan, R. Haydar, P. C. Bosetti, K. Wacker, R. Steinberg, G. Heinzelmann, U. Lenhardt, S. Levonian, M. Fleischer, S. Kermiche, J.P. Sutton, J. Bürger, A. Mavroidis, H. Küster, P. I. P. Kalmus, S. Masson, C. Zeitnitz, G. D. Patel, H. Meyer, W. Scobel, D.P. Johnson, A. Gellrich, M. Th. Wolff, T. Carli, J. V. Morris, M. Forbush, A. Schwind, L. Smolik, U. Seehausen, K. Johannsen, Christophe Royon, Y. Feng, B. Naroska, C. Pascaud, Guenter Eckerlin, R. Vick, J. Tutas, R. Langkau, H. Grässler, J. Garvey, A. M. Fomenko, N. Huot, J. Feltesse, D. Feeken, Max Klein, C. Kiesling, P. A. Smirnov, K. Meier, J. Martens, F. Kole, M. Arpagaus, K. Rybicki, J. B. Dainton, Claire Bourdarios, W. Hildesheim, K. Stephens, E. Peppel, H. T. Phillips, E. Eisenhandler, S. Willard, P. Dingus, J. Vasdik, M. Winde, L. Johnson, Steve McMahon, Tim Greenshaw, J. Heatherington, Pavel Murin, V. Brisson, D. Newton, M. Seman, G. W. Noyes, P. Lanius, V. Tchernyshov, Laurent Favart, A. Drescher, C. Dollfus, Ulrich Goerlach, E. Ryseck, M. Korn, Daniel Pitzl, G. Weber, U. Straumann, Volker Blobel, D. Schmidt, S. K. Kotelnikov, L. Hajduk, Peter Schacht, G. C. Lopez, W. Schmitz, C. Jacobson, Gregorio Bernardi, V. Boudry, J. Strachota, Jean Sacton, G. Villet, Pierre Marage, A. Courau, and P. E. Reimer

Subjects
Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Photon, Scattering, Detector, HERA, Jet (particle physics), Spectral line, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Collider
Abstract

We report on the investigation of the final state in interactions of quasi-real photons with protons. The data were taken with the H1 detector at the HERA ep collider. Evidence for hard interactions is seen in both single particle spectra and jet formation. The data can best be described by inclusion of resolved photon processess as predicted by QCD.

Published
1992
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11. Preequilibrium emission in (p, x n) reactions on palladium isotopes

Author

S. Stamer, R. Langkau, R. Caplar, S. Hölbling, and Wolfgang Scobel

Subjects
Physics, Nuclear and High Energy Physics, Particle emission, Isotope, Isotopes of palladium, Pairing, Nuclear Theory, Resolution (electron density), Nuclear fusion, Neutron, Atomic physics, Nuclear Experiment, Spectral line
Abstract

Energy spectra of neutrons from the104, 105, 106, 108, 110pd(p, xn) reactions atEp=26.1 MeV have been measured using the time-of-flight technique with good overall energy resolution (< 250 keV). The hard part of angle-integrated spectra corresponding to low residual excitations (U≦6MeV) exhibits pronounced structure varying from isotope to isotope. The observed structure can be reasonably well described by preequilibrium-model calculations with two-quasiparticle state densities for proton-particle neutron-hole configurations based on Nilsson-model single-particle levels instead of equidistant ones. The influence of nuclear deformation and pairing on preequilibrium particle emission is explored.

Published
1991
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12. Status of the EDDA experiment at COSY

Author

W Scobel, EDDA collaboration, J Bisplinghoff, R Bollmann, P Cloth, F Dohrmann, G Dorner, V Drüke, J Ernst, P D Eversheim, D Filges, M Gasthuber, R Gebel, A Groß, R Groß-Hardt, F Hinterberger, R Jahn, U Lahr, R Langkau, G Lippert, T Mayer-Kuckuk, R Maschuw, G Mertler, B Metsch, F Mosel, H Paetz gen Schieck, H R Petry, D Prasuhn, B von Przewoski, H Rohdjeß, D Rosendaal, P von Rossen, H Scheid, N Schirm, F Schwandt, H Stein, D Theis, J Weber, W Wiedmann, K Woller, and R Ziegler

Subjects
Elastic scattering, Physics, Range (particle radiation), Proton, Physics::Instrumentation and Detectors, Detector, Monte Carlo method, Condensed Matter Physics, Kinetic energy, Atomic and Molecular Physics, and Optics, Particle detector, Synchrotron, law.invention, Nuclear physics, law, Nuclear Experiment, Mathematical Physics
Abstract

The EDDA experiment is designed to study p + p excitation functions with high energy resolution and narrow step size in the kinetic energy range from 250 MeV to 2500 MeV at the Cooler Synchrotron COSY. Measurements during the accelertion phase in conjunction with internal targets will allow to achieve a fast and precise energy variation. Prototypes of the detector elements and the fiber target have been extensively tested with proton and electron beams; the detector performance and trigger efficiency have been studied in Monte Carlo simulations. In this contribution, results concerning detector design, prototype studies, Monte Carlo simulations and the anticipated detector resolutions will be reported.

Published
1993
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13. The H1 detector at HERA

Author

I. Abt, T. Ahmed, S. Aid, V. Andreev, B. Andrieu, R.D. Appuhn, C. Arnault, M. Arpagaus, A. Babaev, H. Bärwolff, J. Bán, E. Banas, P. Baranov, E. Barrelet, W. Bartel, M. Barth, U. Bassler, F. Basti, D.E. Baynham, J.-M. Baze, G.A. Beck, H.P. Beck, D. Bederede, H.-J. Behrend, C. Beigbeder, A. Belousov, Ch. Berger, H. Bergstein, R. Bernard, G. Bernardi, R. Bernet, R. Bernier, U. Berthon, G. Bertrand-Coremans, M. Besançon, R. Beyer, J.-C. Biasci, P. Biddulph, V. Bidoli, E. Binder, P. Binko, J.-C. Bizot, V. Blobel, F. Blouzon, H. Blume, K. Borras, V. Boudry, C. Bourdarios, F. Brasse, W. Braunschweig, D. Breton, H. Brettel, V. Brisson, D. Bruncko, C. Brune, U. Buchner, L. Büngener, J. Bürger, F.W. Büsser, A. Buniatian, S. Burke, P. Burmeister, A. Busata, G. Buschhorn, A.J. Campbell, T. Carli, F. Charles, M. Charlet, R. Chase, D. Clarke, A.B. Clegg, M. Colombo, V. Commichau, J.F. Connolly, U. Cornett, J.A. Coughlan, A. Courau, M.-C. Cousinou, Ch. Coutures, A. Coville, G. Cozzika, D.A. Cragg, L. Criegee, H.I. Cronström, N.H. Cunliffe, J. Cvach, A. Cyz, S. Dagoret, J.B. Dainton, M. Danilov, A.W.E. Dann, D. Darvill, W.D. Dau, J. David, M. David, R.J. Day, E. Deffur, B. Delcourt, L. Del Buono, F. Descamps, M. Devel, J.P. Dewulf, A. De Roeck, P. Dingus, K. Djidi, C. Dollfus, J.D. Dowell, H.B. Dreis, A. Drescher, U. Dretzler, J. Duboc, A. Ducorps, D. Düllmann, O. Dünger, H. Duhm, B. Dulny, F. Dupont, R. Ebbinghaus, M. Eberle, J. Ebert, T.R. Ebert, G. Eckerlin, B.W.H. Edwards, V. Efremenko, S. Egli, S. Eichenberger, R. Eichler, F. Eisele, E. Eisenhandler, N.N. Ellis, R.J. Ellison, E. Elsen, A. Epifantsev, M. Erdmann, W. Erdmann, G. Ernst, E. Evrard, G. Falley, L. Favart, A. Fedotov, D. Feeken, R. Felst, J. Feltesse, Z.Y. Feng, I.F. Fensome, J. Fent, J. Ferencei, F. Ferrarotto, K. Finke, K. Flamm, W. Flauger, M. Fleischer, M. Flieser, P.S. Flower, G. Flügge, A. Fomenko, B. Fominykh, M. Forbush, J. Formánek, J.M. Foster, G. Franke, E. Fretwurst, W. Fröchtenicht, P. Fuhrmann, E. Gabathuler, K. Gabathuler, K. Gadow, K. Gamerdinger, J. Garvey, J. Gayler, E. Gažo, A. Gellrich, M. Gennis, U. Gensch, H. Genzel, R. Gerhards, K. Geske, I. Giesgen, D. Gillespie, W. Glasgow, L. Godfrey, J. Godlewski, U. Goerlach, L. Goerlich, N. Gogitidze, M. Goldberg, A.M. Goodall, I. Gorelov, P. Goritchev, L. Gosset, C. Grab, H. Grässler, R. Grässler, T. Greenshaw, C. Gregory, H. Greif, M. Grewe, G. Grindhammer, A. Gruber, C. Gruber, S. Günther, J. Haack, M. Haguenauer, D. Haidt, L. Hajduk, D. Hammer, O. Hamon, M. Hampel, D. Handschuh, K. Hangarter, E.M. Hanlon, M. Hapke, U. Harder, J. Harjes, P. Hartz, P.E. Hatton, R. Haydar, W.J. Haynes, J. Heatherington, V. Hedberg, C.R. Hedgecock, G. Heinzelmann, R.C.W. Henderson, H. Henschel, R. Herma, I. Herynek, W. Hildesheim, P. Hill, D.L. Hill, C.D. Hilton, J. Hladký, K.C. Hoeger, R.B. Hopes, R. Horisberger, A. Hrisoho, J. Huber, Ph. Huet, H. Hufnagel, N. Huot, J.-F. Huppert, M. Ibbotson, D. Imbault, H. Itterbeck, M.-A. Jabiol, A. Jacholkowska, C. Jacobsson, M. Jaffré, T. Jansen, P. Jean, J. Jeanjean, L. Jönsson, K. Johannsen, D.P. Johnson, L. Johnson, P. Jovanovic, H. Jung, P.I.P. Kalmus, D. Kant, G. Kantel, S. Karstensen, S. Kasarian, R. Kaschowitz, P. Kasselmann, U. Kathage, H.H. Kaufmann, G. Kemmerling, I.R. Kenyon, S. Kermiche, C. Keuker, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, W. Ko, T. Kobler, J. Koch, T. Köhler, J. Köhne, M. Kolander, H. Kolanoski, F. Kole, J. Koll, S.D. Kolya, B. Koppitz, V. Korbel, M. Korn, P. Kostka, S.K. Kotelnikov, M.W. Krasny, H. Krehbiel, F. Krivan, D. Krücker, U. Krüger, U. Krüner-Marquis, M. Kubantsev, J.P. Kubenka, T. Külper, H.-J. Küsel, H. Küster, M. Kuhlen, T. Kurča, J. Kurzhöfer, B. Kuznik, B. Laforge, F. Lamarche, R. Lander, M.P.J. Landon, W. Lange, R. Langkau, P. Lanius, J.-F. Laporte, L. Laptin, H. Laskus, A. Lebedev, M. Lemler, U. Lenhardt, A. Leuschner, C. Leverenz, S. Levonian, D. Lewin, Ch. Ley, A. Lindner, G. Lindström, F. Linsel, J. Lipinski, B. Liss, P. Loch, A.B. Lodge, H. Lohmander, G.C. Lopez, J.-P. Lottin, V. Lubimov, K. Ludwig, D. Lüers, N. Lugetski, B. Lundberg, K. Maeshima, N. Magnussen, E. Malinovski, S. Mani, P. Marage, J. Marks, R. Marshall, J. Martens, F. Martin, G. Martin, R. Martin, H.-U. Martyn, J. Martyniak, V. Masbender, S. Masson, A. Mavroidis, S.J. Maxfield, S.J. McMahon, A. Mehta, K. Meier, J. Meissner, D. Mercer, T. Merz, C.A. Meyer, H. Meyer, J. Meyer, S. Mikocki, J.L. Mills, V. Milone, J. Möck, E. Monnier, B. Montés, F. Moreau, J. Moreels, B. Morgan, J.V. Morris, J.M. Morton, K. Müller, P. Murín, S.A. Murray, V. Nagovizin, B. Naroska, Th. Naumann, P. Nayman, A. Nepeipivo, P. Newman, D. Newman-Coburn, D. Newton, D. Neyret, H.K. Nguyen, F. Niebergall, C. Niebuhr, R. Nisius, T. Novák, H. Nováková, G. Nowak, G.W. Noyes, M. Nyberg, H. Oberlack, U. Obrock, J.E. Olsson, J. Olszowska, S. Orenstein, F. Ould-Saada, P. Pailler, S. Palanque, E. Panaro, A. Panitch, J.-Y. Parey, C. Pascaud, G.D. Patel, A. Patoux, C. Paulot, U. Pein, E. Peppel, E. Perez, P. Perrodo, A. Perus, S. Peters, J.-P. Pharabod, H.T. Phillips, J.P. Phillips, Ch. Pichler, A. Pieuchot, W. Pimpl, D. Pitzl, A. Porrovecchio, S. Prell, R. Prosi, H. Quehl, G. Rädel, F. Raupach, K. Rauschnabel, A. Reboux, P. Reimer, G. Reinmuth, S. Reinshagen, P. Ribarics, V. Riech, J. Riedlberger, H. Riege, S. Riess, M. Rietz, S.M. Robertson, P. Robmann, P. Röpnack, R. Roosen, K. Rosenbauer, A. Rostovtsev, C. Royon, A. Rudge, K. Rüter, M. Rudowicz, M. Ruffer, S. Rusakov, V. Rusinov, K. Rybicki, J. Sacton, N. Sahlmann, E. Sanchez, D.P.C. Sankey, M. Savitski, P. Schacht, S. Schiek, N. Schirm, S. Schleif, P. Schleper, W. von Schlippe, C. Schmidt, D. Schmidt, G. Schmidt, W. Schmitz, H. Schmücker, V. Schröder, J. Schütt, E. Schuhmann, M. Schulz, A. Schwind, W. Scobel, U. Seehausen, F. Sefkow, R. Sell, M. Seman, A. Semenov, P. Shatalov, V. Shekelyan, I. Sheviakov, H. Shooshtari, L.N. Shtarkov, G. Siegmon, U. Siewert, Y. Sirois, A. Sirous, I.O. Skillicorn, P. Škvařil, P. Smirnov, J.R. Smith, L. Smolik, D. Sole, Y. Soloviev, J. Špalek, H. Spitzer, R. von Staa, J. Staeck, P. Staroba, J. Šťastný, M. Steenbock, P. Štefan, P. Steffen, R. Steinberg, H. Steiner, B. Stella, K. Stephens, J. Stier, J. Stiewe, U. Stösslein, J. Strachota, U. Straumann, A. Strowbridge, W. Struczinski, J.P. Sutton, Z. Szkutnik, G. Tappern, S. Tapprogge, R.E. Taylor, V. Tchernyshov, V. Tchudakov, C. Thiebaux, K. Thiele, G. Thompson, R.J. Thompson, I. Tichomirov, C. Trenkel, W. Tribanek, K. Tröger, P. Truöl, M. Turiot, J. Turnau, J. Tutas, L. Urban, M. Urban, A. Usik, Š. Valkár, A. Valkárová, C. Vallée, G. Van Beek, M. Vanderkelen, L. Van Lancker, P. Van Mechelen, A. Vartapetian, Y. Vazdik, M. Vecko, P. Verrecchia, R. Vick, G. Villet, E. Vogel, K. Wacker, M. Wagener, I.W. Walker, A. Walther, G. Weber, D. Wegener, A. Wegner, P. Weissbach, H.P. Wellisch, L. West, D. White, S. Willard, M. Winde, G.-G. Winter, Th. Wolff, L.A. Womersley, A.E. Wright, E. Wünsch, N. Wulff, B.E. Wyborn, T.P. Yiou, J. Žáček, D. Zarbock, P. Závada, C. Zeitnitz, Z. Zhang, H. Ziaeepour, M. Zimmer, W. Zimmermann, F. Zomer, K. Zuber, Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de l'Accélérateur Linéaire ( LAL ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Centre de Physique des Particules de Marseille ( CPPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Aix Marseille Université ( AMU ), H1, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Calorimeter (particle physics), Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, HERA, 01 natural sciences, law.invention, Nuclear physics, Upgrade, Data acquisition, law, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, Collider, Instrumentation, Storage ring
Abstract

General aspects of the H1 detector at the electron-proton storage ring HERA as well as technical descriptions of the magnet, luminosity system, trigger, slow-control, data acquisition and off-line data handling are given. The three major components of the detector, the tracking, calorimeter and muon detectors, will be described in a forthcoming article. The present paper describes the detector that was used from 1992 to the end of 1994. After this a major upgrade of some components was undertaken. Some performance figures from luminosity runs at HERA during 1993 and 1994 are given.

Published
1997

14. Entrance channel effects in nucleon andαparticle preequilibrium decay ofCu63* andZn64*

Author

A. Alevra, R. Scherwinski, R. Langkau, W. Scobel, and J. Friese

Subjects
Physics, Nuclear reaction, Nuclear and High Energy Physics, Isotopes of copper, Nuclear Theory, Hadron, Neutron, Alpha particle, Proton emission, Atomic physics, Nuclear Experiment, Nucleon, Charged particle
Abstract

Double differential cross sections for the inclusive production of neutrons, protons, and ..cap alpha.. particles from /sup 59/Co and /sup 60/Ni bombarded with ..cap alpha.. particles of energies E/sub ..cap alpha../ = 28 and 32 MeV, respectively, have been measured for several angles between 15/sup 0/ and 160/sup 0/. Hybrid model calculations for the preequilibrium decay consistently yield initial excitation numbers n/sub 0/ = 5(4) for both neutron and proton emission from ..cap alpha..+/sup 59/Co (..cap alpha..+/sup 60/Ni) if pairing effects are taken into account. The angular distributions of nucleons and ..cap alpha.. particles differ from those of the reactions p+/sup 62/Ni, /sup 63/Cu; they are discussed in the framework of the generalized exciton model that distinguishes between multistep direct and multistep compound contributions.

Published
1982
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16. Einige Szintillationseigenschaften von unaktiviertem CsJ bei Zimmertemperatur

Author

R. Langkau

Subjects
General Physics and Astronomy, Physical and Theoretical Chemistry, Mathematical Physics
Abstract

Mittels eines Sampling-Speicherverfahrens wurde der zeitliche Verlauf der Szintillation eines unaktivierten CsJ-Kristalls bei Zimmertemperatur untersucht. Zur Anregung der Szintillationen dienten α-Teilchen und γ-Quanten. Der Verlauf setzt sich aus einer schnellen und einer langsamen Komponente zusammen, wobei das Intensitätsverhältnis beider Komponenten sehr stark von der Art der anregenden Strahlung abhängt. Diese Tatsache läßt sich zur Teilchendiskriminierung ausnutzen.

Published
1966
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18. �ber die Wirkungsquerschnitte einigern, n ?-Reaktionen f�r Neutronenenergien zwischen 12 und 19 MeV

Author

R. Langkau, H. Neuert, M. Bormann, and S. Cierjacks

Subjects
Nuclear reaction, Physics, Nuclear and High Energy Physics, Range (particle radiation), Nuclear Theory, Analytical chemistry, Alpha particle, Neutron temperature, Isotopes of potassium, Physics::Accelerator Physics, Neutron source, Nuclear fusion, Neutron, Atomic physics, Nuclear Experiment
Abstract

Cross sections of somen, nα-reactions have been investigated in the energy range of the neutrons from 12 to 19.6 MeV by measuring the radioactivities produced. Neutrons of these energies were produced by bombarding a thin tritium-target with 3 MeV-Deuterons. In all cases considered the cross section increases rapidly with the neutron energy. In addition somen, 2n-reactions were studied in the same way; the results were compared with cross sections which were calculated according to the statistical theory.

Published
1962
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19. Teilchentrennung mit Szintillationszählern und Anwendung auf die Messung von Protonenspektren aus Reaktionen von Neutronen des Energiebereichs 12 bis 22 MeV mit den Kernen K39, J127 und Cs133

Author

R. Langkau

Subjects
Physics, General Physics and Astronomy, Physical and Theoretical Chemistry, Mathematical Physics
Abstract

Die folgende Arbeit befaßt sich mit der Anwendung spezieller Szintillationszählerverfahren zur Teilchendiskriminierung auf Untersuchungen über Kernreaktionen von Neutronen mit den Elementen K, J und Cs. Die Meßverfahren geben die Möglichkeit, mit guter Statistik die Spektren emittierter geladener Teilchen zu messen, auch wenn ein starker γ-Untergrund vorhanden ist. Gemessen wurden die Energieverteilungen von Protonen, die beim Beschuß der Szintillationskristalle CsJ (Tl) und KJ (Tl) mit Neutronen emittiert werden. Die Kristalle dienten also sowohl als Target als auch als Detektor. Die Energie der Neutronen, die mit Hilfe der T (d,n) He4-Reaktion bei Deuteronenenergien von 3 und 4,5 MeV erzeugt wurden, konnte durch entsprechende Wahl des Beobachtungswinkels zwischen 12 und 22 MeV variiert werden. Außer den Energiespektren konnten auch die Wirkungsquerschnitte gemessen werden. Eine genaue Betrachtung der Spektren weist darauf hin, daß die statistische Theorie der Kernreaktionen die Verhältnisse vermutlich nicht in allen Einzelheiten beschreiben kann und daß direkte Wechselwirkungsprozesse erheblich zum Wirkungsquerschnitt beitragen.

Published
1963
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20. Untersuchung des Szintillationsverhaltens von CsJ im Hinblick auf die Anwendung zur Teilchendiskriminierung

Author

J. Siemer and R. Langkau

Subjects
General Physics and Astronomy, Physical and Theoretical Chemistry, Mathematical Physics
Abstract

Mit Hilfe des BoLLINGER—THOMAS-Verfahrens wurde das Szintillationsabklingen von CsJ-Kristallen verschiedener Tl-Konzentration im Temperaturbereich von —160 °C bis +145°C im Hinblick auf die Verwendung zur Teilchendiskriminierung untersucht. Zur Anregung der Szintillationen dienten α-Teilchen und γ-Quanten. Die Güte der Teilchendiskriminierung bei Zimmertemperatur für Kristalle verschiedenen TI-Gehaltes wurde nach der Nulldurchgangsmethode geprüft.

Published
1966
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21. Bücherschau

Author

K. Bach, H. W. Hahnemann, R. Langkau, H. Weiß, U. Neubert, G. Franke, E. G. Niemann, G. Oberdorfer, X. Hafer, M. Hansen, A. W. Neuberger, F. Keune, E. Stein, H. Triebnigg, and K. -F. Knoche

Subjects
General Engineering
Published
1968
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24. Sub-nanosecond bursts from an AVF cyclotron

Author

J. Rethmeier, R. Langkau, and J.G. Nijenhuis

Subjects
Nuclear physics, Physics, law, Cyclotron, General Medicine, Current (fluid), Time structure, Nanosecond, Beam (structure), law.invention
Abstract

Time structure in the cyclotron beam was studied with time-of-flight technique. It can be controlled with the correction coils, and the burst width may be reduced to 0.6 ns (10 MHz, 10.5 MeV d) with a 90% loss of current.

Published
1969
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25. Szintillations- Und Teilchendiskriminierungseigenschaften Der Kristalle CsBr(Tl) Und RbJ(Tl)

Author

D. Klinger, R. Langkau, and H. Walter

Subjects
Crystal, Scintillation, Materials science, Particle, General Medicine, Atomic physics, Atmospheric temperature range, Pulse (physics)
Abstract

The scintillation decay and the pulse shape discrimination properties of Tl activated CsBr and RbI crystals have been studied in the temperature range from −60°C to +250°C. The decay depends in a characteristic way on the temperature of the crystal and the type of the particle used. It is shown that the differences in shape between gamma-ray and alpha-particle pulses are sufficient to be used for pulse shape discrimination.

Published
1963
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26. A MEASUREMENT OF MULTI-JET RATES IN DEEP-INELASTIC SCATTERING AT HERA

Author

M. Schulz, M. Nyberg, Paul Newman, J. Harjes, T. Jansen, W. Hildesheim, R. Marshall, Dirk Krücker, S. Willard, G. Rädel, K. C. Hoeger, M. Korn, J. Garvey, B. Kuznik, V. Riech, C. A. Meyer, A. M. Fomenko, M. Winde, J. Feltesse, M. Arpagaus, Ph. Huet, Ch. Pichler, G. Weber, Armen Vartapetian, U. Straumann, C. Zeitnitz, M. Hapke, L. Johnson, Dave Sankey, P. Fuhrmann, R. L. Lander, H. Bärwolff, K. Rauschnabel, Wolfgang Lange, S. Levonian, J. M. Foster, R. C. W. Henderson, Daniel Johnson, J. Duboc, B. Stella, A. Rostovtsev, H. Greif, M. Rudowicz, I. Abt, E. Binder, N. Huot, J. Tutas, J. D. Burger, R. Prosi, L. Goerlich, E. Evrard, Jean-Arcady Meyer, J. Gayler, M. Savitsky, G. D. Patel, W. Scobel, Max Klein, R. Gerhards, J. Turnau, K. Johannsen, Christophe Royon, Kerstin Borras, A. Semenov, E. Sanchez, E. Malinovski, M. Kuhlen, G. Grindhammer, P. E. Reimer, H. Meyer, S. Kermiche, K. Flamm, S. Eichenberger, A. Mavroidis, M. Steenbock, J. Cvach, B. Andrieu, David Schmidt, Th. Wolff, F. Linsel, J. Moreels, G. Siegmon, P. A. Smirnov, Alan Campbell, E. M. Hanlon, G. G. Winter, A. Wegner, Daniel Pitzl, D. Lüers, Pavel Staroba, R. Kaschowitz, D. Handschuh, J. Žáček, H. Ziaeepour, J. Kurzhöfer, K. Stephens, E. Peppel, H. Krehbiel, P. Steffen, F. Moreau, J. Hladký, N. Magnussen, J. Heatherington, C. Niebuhr, Peter Schacht, G. C. Lopez, A. Valkárová, S. Riess, V. Nagovizin, A. W. E. Dann, P. I. P. Kalmus, N. Sahlmann, T. R. Ebert, P. Verrecchia, F. Brasse, H. Shooshtari, J. V. Morris, Winston Ko, W. von Schlippe, D. Feeken, G. Buschhorn, A. Jacholkowska, A. Fedotov, W. Schmitz, Günter Flügge, H. T. Phillips, J. P. Kubenka, P. Hill, J. Bán, H. Spitzer, E. Barrelet, T. Merz, Stephen Maxfield, C. Pascaud, Guenter Eckerlin, R. Vick, P. Biddulph, R. Ebbinghaus, D. Newton, V. Schröder, S. D. Kolya, S. Reinshagen, M. A. Jabiol, T. P. Yiou, E. Vogel, Y. Soloviev, Gregorio Bernardi, S. Prell, Anton Babaev, Nicolas Ellis, André Schöning, H. H. Kaufmann, A. B. Clegg, Andrew Mehta, C. Kiesling, Ch. Berger, Eckhard Elsen, M. Forbush, J. Riedlberger, S. Kasarian, Karlheinz Meier, N. Gogitidze, H. P. Wellisch, C. Thiebaux, S. K. Kotelnikov, L. Hajduk, A. Schwind, I. F. Fensome, U. Bassler, R. J. Ellison, J. Strachota, B. Delcourt, L. Büngener, S. Mani, Leith Godfrey, Michel Devel, Vincent Hedberg, G. Knies, A. De Roeck, Richard E. Taylor, R. Langkau, Mario David, T. Carli, H. U. Martyn, V. Milone, U. Stösslein, I. W. Walker, K. Rybicki, I. Herynek, Dusan Bruncko, R. Bernet, H. P. Beck, Stephen Burke, A. Lebedev, S. Egli, L. Urban, T. Kurča, M. Ruffer, B. Naroska, S. Orenstein, F. Ferrarotto, H. Genzel, A. Lindner, R. Nisius, L.A. Womersley, A. Leuschner, Christoph Grab, Grzegorz Nowak, C. Jacobsson, Peter Loch, M. Rietz, D. Haidt, L. N. Shtarkov, G. W. Noyes, P. Lanius, P. Ribarics, T. Greenshaw, F. Zomer, A. M. Goodall, R. Felst, J.P. Phillips, Volker Blobel, A. Walther, C. Leverenz, R. Eichler, C. Keuker, Rosario Martín, J. Ferencei, J. Ebert, C. Schmidt, P. Dingus, U. Braun, R. D. Appuhn, Leif J. Jönsson, P. Van Esch, M. Flieser, W. Zimmermann, M. Vecko, L. Del Buono, J. Stier, V. Andreev, M. Fleischer, J. Haack, Didier Lacour, D. Mercer, M. Eberle, J. P. Sutton, Claus Kleinwort, J. R. Smith, I. O. Skillicorn, H. B. Dreis, F. Charles, J. Marks, G. Heinzelmann, F. Ould-Saada, H. Lohmander, V. Tchernyshov, Y. Vazdik, L.R. West, V. Korbel, U. Kathage, I. Sheviakov, R. Herma, O. Hamon, E. Eisenhandler, W. Pilgram, G. Villet, Ch. Ley, S. Masson, Pierre Marage, U. Krüger, Peter Robmann, M. Gennis, M. Colombo, J. Martens, A. Bischoff, V. Brisson, F. Kole, S. Dagoret, Yves Sirois, B. Schwab, H. Küster, H. Bergstein, L. Smolik, U. Seehausen, G. Lindström, Murrough Landon, A. E. Wright, Th. Naumann, Petr Zavada, C. Gruber, H. Duhm, V I. Shekelyan, R. Haydar, P. C. Bosetti, K. Wacker, R. Steinberg, Pavel Murin, H. Grässler, J. D. Dowell, A. Courau, W. Flauger, J. Lipinski, M. Ibbotson, E. Gabathuler, E. Deffur, H. K. Nguyen, P. Kostka, O. Dünger, G. Franke, S. A. Murray, Laurent Favart, I. V. Gorelov, K. Müller, C. Dollfus, R. Grässler, Ch. Coutures, W. Struczinski, H. Itterbeck, S. Peters, Ulrich Goerlach, P. Goritchev, Martin Erdmann, U. Obrock, F. Niebergall, K. Gamerdinger, D. Neyret, G. Thompson, Steve McMahon, W.D. Dau, J. B. Dainton, A. Drescher, D. Düllmann, Claire Bourdarios, H. Henschel, H. J. Behrend, J.C. Bizot, M. Goldberg, G. Cozzika, F. Eisele, Stefan Valkar, Hannes Jung, C. Vallée, T. Ahmed, P. Baranov, Peter Schleper, Marc Besancon, A.S. Belousov, Sergey Rusakov, P. Truöl, I. Tichomirov, H. Hufnagel, C.D. Hilton, Mikhail Danilov, D. Lewin, R. Roosen, J. Martyniak, Frank Raupach, B. Fominykh, A. Buniatian, D. Wegener, W.J. Haynes, Emmanuel Monnier, Eckhart Fretwurst, S. M. Robertson, T. Köhler, M. W. Krasny, N. Wulff, V. Efremenko, P. Kasselmann, S. Mikocki, M. Jaffre, J. E. Olsson, W. Bartel, F. W. Büsser, G. Bertrand-Coremans, W. Braunschweig, R. Sell, I. R. Kenyon, L. Criegee, J. Formánek, U. Siewert, M. Zimmer, Vincent Boudry, Jean-Francois Laporte, A. Gellrich, F. Lamarche, Hermann Kolanoski, D. Clarke, John A Coughlan, Horst Oberlack, and A. Usik

Subjects
Quantum chromodynamics, Physics, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, Detector, Momentum transfer, Elementary particle, HERA, Electron, Deep inelastic scattering, Nuclear physics, High Energy Physics::Experiment, Engineering (miscellaneous), Event generator
Abstract

Multi-jet production is observed in deep-inelastic electron proton scattering with the H1 detector at HERA. Jet rates for momentum transfers squared up to 500 GeV2 are determined using the JADE jet clustering algorithm. They are found to be in agreement with predictions from QCD based models.

27. Untersuchng des szintillationsverlaufs einiger schneller organischer plastik-und flüssigkeitsszintillatoren

Author

R. Langkau and R. Kunze

Subjects
Scintillation, Materials science, Nuclear magnetic resonance, Optics, Physics::Instrumentation and Detectors, business.industry, Time resolution, General Medicine, Scintillator, business, Pulse (physics)
Abstract

The scintillation decay of several fast organic scintillators is studied. The pulse shapes were measured by a sampling technique and corrected for instrumental time resolution.

Published
1971
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30. Dog assisted education in children with rheumatic diseases and adolescents with chronic pain in Germany.

Author

Kiesewetter J, Herbach N, Landes I, Mayer J, Elgner V, Orle K, Grunow A, Langkau R, Gratzer C, and Jansson AF

Subjects
Male, Humans, Child, Dogs, Adolescent, Animals, Quality of Life, Syndrome, Germany, Chronic Pain therapy, Rheumatic Diseases epidemiology
Abstract

Objectives: Animal assisted intervention is an increasingly accepted tool to improve human well-being. The present study was performed to assess whether dog assisted education has a positive effect on children suffering from rheumatic disorders with pain and adolescents with chronic pain syndrome., Design: Two groups of juvenile patients were recruited: 7-17-year-old children in children with rheumatic diseases and adolescents with chronic pain syndromes. Overall, n=26 participated in the intervention, and n=29 in the control group., Setting: The intervention group met once a month, 12 times overall, for working with man trailing dogs in various locations., Main Outcome Measures: The influence of dog assisted education on quality of life (PedsQL TM Scoring Algorithm), pain intensity, perception, coping (Paediatric Pain Coping Inventory-Revised), and state anxiety (State Trait Anxiety Inventory) was assessed., Results: The quality of life increased significantly in the investigated period, but for both, the intervention and the control group. The state anxiety of children was lower after the dog assisted education than before. After the dog training sessions, state anxiety was 18% to 30% lower than before the intervention. Some participants noted subjectively improved pain coping and changes in pain perception, which were not found in the data., Conclusion: Our results indicate that for children with rheumatic diseases and adolescents with chronic pain syndromes dog assisted education (1) might lead to an increase of the quality of life, (2) leads to decreased state anxiety from pre to post intervention and (3) does not influence pain perception, frequency and intensity., Competing Interests: The authors declare that they have no competing interests., (Copyright © 2023 Kiesewetter et al.)

Published
2023
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32. Influence of unilateral vocal fold fixation on the structure of the intrinsic laryngeal muscles.

Author

Langkau R, Martin F, and Klingholz F

Subjects
Adenosine Triphosphatases metabolism, Aged, Humans, Laryngeal Neoplasms pathology, Male, Middle Aged, Muscular Atrophy pathology, Laryngeal Muscles pathology, Laryngeal Neoplasms surgery, Laryngectomy, Vocal Cords pathology
Abstract

Histomorphometric data (fiber frequencies, fiber diameters, and atrophy factors) were determined in laryngeal muscles [thyroarytenoid (VOC), posterior (PCA) and lateral (LCA) cricoarytenoids, and cricothyroid (CT) muscles]. Seventy-three muscles (43,700 fibers) from normal and carcinoma-infiltrated sides of the larynges of 11 patients were analyzed. The fiber diameters showed uniform values of 24.2 +/- 9.1 microns. Type-I fibers were more frequent in the PCA and less frequent in the LCA and the CT. In the VOC, the ratio was 1:1. The unilateral fixation of a vocal fold modified the structures of the LCA and the CT. The VOC and the PCA were not affected. A hypothesis based on the phonatory function of the CT is used to explain its atrophy.

Published
1993
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