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1. Oral and Dermal Bioavailability Studies of Polycyclic Aromatic Hydrocarbons from Soils Containing Weathered Fragments of Clay Shooting Targets

Author: Anita K. Meyer, Joseph T. Haney, Norman D. Forsberg, Glenn C. Hoeger, and Brian H. Magee
Subjects: Biological Availability, Environmental media, General Chemistry, 010501 environmental sciences, 01 natural sciences, Risk Assessment, Bioavailability, chemistry.chemical_compound, Soil, Key factors, chemistry, Environmental chemistry, Soil water, Environmental Chemistry, Pyrene, Clay, Humans, Soil Pollutants, Sample preparation, Polycyclic Aromatic Hydrocarbons, Carcinogen, 0105 earth and related environmental sciences, Environmental Monitoring
Abstract: The relative oral bioavailability and dermal absorption of chemical substances from environmental media are key factors that are needed to accurately estimate site-specific risks and manage human exposures. This study evaluated the in vivo relative oral bioavailability and in vitro dermal absorption of several polycyclic aromatic hydrocarbons (PAHs) found in soils collected from two formerly used Department of Defense sites impacted by weathered fragments of clay shooting targets. Concentrations of individual carcinogenic PAHs in the ≤250 μm fraction of soil ranged from approximately 0.1 to 100 mg/kg. A novel sample preparation method was developed to produce accurate and precise test diets for oral studies. The resulting test diets showed consistent concentrations of PAHs in soil- and soil-extract-amended diets and a consistent PAH concentration profile. Mean oral relative bioavailability factors (RBAFs) and dermal absorption fractions (ABSd) for benzo(a)pyrene ranged from 8 to 14% and 0.58 to 1.3%, respectively. Using the RBAF and ABSd values, measured here, for benzo(a)pyrene in USEPA's regional screening level equations yields concentrations for residential soils that are approximately eight times higher than those when default values are used (e.g., 9.6 vs 1.2 mg/kg at a target excess risk of 1 × 10-5).
Published: 2021

2. Risk assessment implications of site-specific oral relative bioavailability factors and dermal absorption fractions for polycyclic aromatic hydrocarbons in surface soils impacted by clay skeet target fragments

Author: Norman D. Forsberg, Glenn C. Hoeger, Brian H. Magee, Anita K. Meyer, and Joseph T. Haney
Subjects: Surface Properties, Skin Absorption, Administration, Oral, Biological Availability, 010501 environmental sciences, Toxicology, Risk Assessment, 030226 pharmacology & pharmacy, 01 natural sciences, Dermal exposure, Soil, 03 medical and health sciences, Human health, 0302 clinical medicine, Humans, Soil Pollutants, Polycyclic Aromatic Hydrocarbons, 0105 earth and related environmental sciences, General Medicine, Bioavailability, Remedial action, Environmental chemistry, Soil water, Clay, Environmental science, Risk assessment
Abstract: Risk assessment conclusions for a site may differ when using site-specific versus default values for the relative bioavailability factor (RBAF) and dermal absorption fraction (ABS.d), because these inputs affect both surface soil screening levels and risk/hazard estimates. Indeed, our case study demonstrates that different conclusions may be reached as to regulatory need for remedial action to protect human health when evaluating soil sampling data for seven carcinogenic polycyclic aromatic hydrocarbons (PAHs) using site-specific versus default TCEQ and USEPA residential soil screening levels. Use of site-specific RBAF and ABS.d values increased carcinogenicity-based TCEQ and USEPA surface soil screening levels for PAHs by 4.4- and 6-fold on average, respectively. Soil screening levels for PAHs were more sensitive to changes in ingestion exposure route parameters than to changes in dermal exposure route parameters. Accordingly, site-specific RBAF and ABS.d information has important implications for screening chemicals at PAH-impacted sites, and in addition provides more realistic estimates of risks/hazards posed by PAHs in soil with reduced uncertainty compared to estimates based on default RBAF and ABS.d values. Although default values are generally deemed acceptable by regulatory agencies, use of risk/hazard estimates based on these default values may compel insufficiently justified remedial action in some instances.
Published: 2020
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3. Somatostatin Receptor 1 Selective Analogues: 2. Nα-Methylated Scan

Author: Judit Erchegyi, C Hoeger, Renzo Cescato, William Low, Jean E. F. Rivier, Daniel Hoyer, Jean-Claude Schaer, Beatrice Waser, Véronique Eltschinger, and Jean Claude Reubi
Subjects: chemistry.chemical_classification, Somatostatin receptor, Chemistry, Stereochemistry, Colforsin, CHO Cells, Monoiodotyrosine, Methylation, Amino acid, Radioligand Assay, Structure-Activity Relationship, chemistry.chemical_compound, Cricetulus, Somatostatin, Cricetinae, Drug Discovery, Cyclic AMP, Animals, Humans, Molecular Medicine, Somatostatin receptor 1, Receptors, Somatostatin, Tyrosine, Selectivity
Abstract: Des-AA(1,2,5)-[d-Trp(8)/d-Nal(8),IAmp(9)]SRIF (AA = amino acid, Nal = 3-(2-naphthyl)-alanine, IAmp = 4-(N-isopropyl)-aminomethylphenylalanine, SRIF = somatostatin), with or without a tyrosine or monoiodotyrosine, were scanned with the introduction of a backbone N-methyl group and tested for binding affinity at the five human somatostatin receptors (sst(1)(-)(5)). N(alpha)-Methylation resulted in loss of sst affinity (2- to5-fold) when introduced at residues Lys(4) (6), Phe(6) (7), Phe(7) (8), Thr(10) (11), and Phe(11) (12) of the parent compound Des-AA(1,2,5)-[d-Nal(8),IAmp(9)]SRIF (4). N(alpha)-Methylation was tolerated at residues Cys(3) (5), d-Nal(8) (9), Thr(12) (13), and Cys(14) (15) with retention of binding sst affinity and selectivity and resulted in an increase in sst binding affinity at positions IAmp(9) (10) and Ser(13) (14). In these series, the d-Trp(8) substitution versus d-Nal(8) is clearly superior. C-Terminally lysine-extended analogues (21-25) retained sst(1) selectivity and binding affinity when compared to their d-Nal(8)- (4) or d-Trp(8)- (3) containing parent. Des-AA(1,2,5)-[d-Trp(8), (N(alpha)Me)IAmp(9)]SRIF (17), Des-AA(1,2,5)-[d-Trp(8),IAmp(9),(N(alpha)Me)Ser(13)]SRIF (19), Des-AA(1,2,5)-[d-Trp(8),IAmp(9),(N(alpha)Me)Cys(14)]SRIF (20), Des-AA(1,2,5)-[d-Trp(8),(N(alpha)Me)IAmp(9),Tyr(11)]SRIF (34), and Des-AA(1,2,5)-[d-Agl(8)(N(beta)Me,2-naphthoyl),IAmp(9),Tyr(11)]SRIF (42) (Agl = aminoglycine) are sst(1) agonists in their ability to inhibit forskolin-induced cAMP production.
Published: 2004
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4. Potent Somatostatin Undecapeptide Agonists Selective for Somatostatin Receptor 1 (sst1)

Author: A. G. Craig, Jean-Claude Schaer, S. C. Koerber, Beatrice Waser, Sandra Wenger, Jean Rivier, J. Gulyas, C Hoeger, Jean Claude Reubi, J. Erchegyi, and R DeBoard
Subjects: Agonist, Somatostatin receptor, Stereochemistry, medicine.drug_class, Chemistry, Chemical synthesis, chemistry.chemical_compound, Somatostatin, Drug Discovery, medicine, Peptide synthesis, Molecular Medicine, Structure–activity relationship, Somatostatin receptor 1, Receptor
Abstract: A family of analogues of des-AA(1,2,5)-[DTrp(8)/D2Nal(8)]-SRIF that contain a 4-(N-isopropyl)-aminomethylphenylalanine (IAmp) at position 9 was identified that has high affinity and selectivity for human somatostatin receptor subtype 1 (sst1). The binding affinities of des-AA(1,2,5)-[DTrp(8),IAmp(9)]-SRIF (c[H-Cys-Lys-Phe-Phe-DTrp-IAmp-Thr-Phe-Thr-Ser-Cys-OH], CH-275) (7), des-AA(1,5)-[Tyr(2),DTrp(8),IAmp(9)]-SRIF (CH-288) (16), des-AA(1,2,5)-[Tyr(7),DTrp(8),IAmp(9)]-SRIF (23), and des-AA(1,2,5)-[DTrp(8),IAmp(9),Tyr(11)]-SRIF (25) are about (1)/(7), (1)/(4), (1)/(125), and (1)/(4) that of SRIF-28 (1) to sst1, respectively, about (1)/(65), (1)/(130)
Published: 2001
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5. Measurement of the total photon proton cross section and its decomposition at 200 GeV centre of mass energy

Author: C. Cormack, G. G. Winter, C. Vallée, J. Martens, P. Steffen, R. D. Appuhn, F. Kole, K. Rüter, U. Stößlein, C. Niebuhr, J. H. Köhne, D. Zarbock, H. P. Wellisch, R. Nahnhauer, D. Goldner, Max Weber, E. Malinovski, E. Barrelet, David Cussans, P. Goritchev, B. Laforge, Y. Soloviev, T. Carli, M. Kuhlen, G. Grindhammer, Paul Newman, V. L. Hudgson, E. A. De Wolf, Ch. Berger, Karlheinz Meier, K. Rosenbauer, C. Wittek, G. Lindström, C. Gruber, Dusan Bruncko, K. Rybicki, D. Neyret, L. Büngener, H. Krehbiel, A. Pieuchot, T. Mavroidis, B. Naroska, F. Ferrarotto, M. Jaffre, J. E. Olsson, H. Genzel, A. Lebedev, M. Korn, S. Egli, Christoph Grab, G. Thompson, W. Bartel, I. Herynek, K. Daum, G. Knies, T. Greenshaw, P. Bispham, J. Haack, Stephen Maxfield, I. O. Skillicorn, H. B. Dreis, U. Bassler, M. Charlet, G. Buschhorn, G. Bertrand-Coremans, R. Starosta, D. Ozerov, D. Düllmann, Rosario Martín, R. J. Ellison, M. Rietz, D. Haidt, K. C. Hoeger, Murrough Landon, A. E. Wright, H. Itterbeck, Wolfgang Lange, P. Van Mechelen, B. Waugh, G. Weber, H. Henschel, F. W. Büsser, F. Zomer, U. Straumann, H. J. Behrend, J.C. Bizot, M. Goldberg, J. Stiewe, P. Van Esch, E. Evrard, Eram Rizvi, L. Del Buono, L. Criegee, Grzegorz Nowak, W. Braunschweig, C. Jacobsson, A. Gellrich, V. Riech, F. Sefkow, J. P. Sutton, Claus Kleinwort, V. Andreev, G. Heinzelmann, D. Kant, Kerstin Borras, A. Semenov, M. Fleischer, P. Ribarics, T. Jansen, R. Felst, J. Formánek, A. B. Clegg, Andrew Mehta, S. Schiek, S. Tapprogge, H. Spitzer, Armen Vartapetian, M. Hapke, R. Sell, Benno List, J. Gayler, I. R. Kenyon, S. Kazarian, G. Villet, Barbara Clerbaux, R. Kaschowitz, Pierre Marage, E. Mroczko, M. Gebauer, B. Delcourt, D. Vandenplas, H. Küster, F. Brasse, V. Korbel, W.D. Dau, D. Lüke, A. Wegner, N. Gogitidze, H. Rick, J. B. Dainton, U. Siewert, F. Lamarche, A. Rostovtsev, A. Droutskoi, G. Rädel, C. Leverenz, J. Garvey, O. Hamon, S. Levonian, J. Zsembery, J. M. Link, E. Panaro, J. Kurzhöfer, H. Ehrlichmann, E. Wünsch, V. Solochenko, M. Zimmer, A. M. Fomenko, J. D. Dowell, Dave Sankey, M. Wagener, Roland Horisberger, A. Valkárová, U. Kathage, Vincent Boudry, M. Hampel, B. Kuznik, A. Meyer, Ph. Huet, V. Brisson, Yves Sirois, Jean-Francois Laporte, V. Nagovizin, G. D. Patel, P. Loch, S. Riess, Ch. Pichler, K. Gabathuler, A. Buniatian, Jean-Arcady Meyer, D. Wegener, W.J. Haynes, R. Gerhards, M. J. Burton, J. Lipinski, R. Bernet, K. Flamm, G. Franke, Yong Ban, N. Magnussen, K. Johannsen, P. Verrecchia, J. Žáček, A. Courau, Christophe Royon, J. Feltesse, S. Eichenberger, G. Martin, David Schmidt, J. Bähr, S. Spielman, T. Köhler, M. W. Krasny, V. Schröder, S. Schleif, K. H. Hiller, R. C. W. Henderson, N. Sahlmann, H. H. Kaufmann, Eckhard Elsen, Wolfram Erdmann, E. Schuhmann, Winston Ko, S. Aid, P. I. P. Kalmus, J. V. Morris, G. Schmidt, C. Pascaud, V. Efremenko, P. Hill, F. Linsel, P.-O. Meyer, G. W. Noyes, Martin Erdmann, U. Obrock, Zhen Zhang, Guenter Eckerlin, André Schöning, S. Mani, A. Walther, P. Biddulph, Hermann Kolanoski, D. Clarke, H. E. Roloff, M. Forbush, S. Mikocki, J. Bán, J. Tutas, F. Niebergall, J. D. Burger, H. P. Beck, Stephen Burke, A. Braemer, D. Mercer, M. A. Jabiol, W. Zimmermann, Gianfranco Sciacca, J. Riedlberger, H. Hufnagel, J. W. Lomas, I. Sheviakov, D. Newton, V. Lubimov, R. Prosi, J. Ebert, S. Masson, Leif J. Jönsson, John A Coughlan, A. Usik, K. Stolze, M. Höppner, C. A. Meyer, S. Prell, P. Dixon, H. Lohmander, P. Lanius, A. Gruber, R. Buchholz, L. N. Shtarkov, U. Krüger, A. Migliori, Horst Oberlack, Markus Seidel, A. Glazov, V. Tchernyshov, G. Siegmon, H. U. Martyn, Matthias Klein, David Milstead, P. A. Smirnov, Ch. Ley, A. Panitch, C.D. Hilton, J.G. Contreras, Daniel Johnson, R. Beyer, S. Dagoret, P. Palmen, L. Goerlich, F. Moreau, J. Hladký, F. Lehner, J. Theissen, J. Duboc, B. Stella, D. Feeken, A. Jacholkowska, B. Gonzalez-Pineiro, K. Stephens, E. Peppel, M. Arpagaus, S. D. Kolya, M. Oakden, R. Marshall, Dirk Krücker, R. Roosen, J. Ferencei, V I. Shekelyan, A. Wagener, S. Reinshagen, J. Martyniak, K. Wacker, R. Steinberg, J. Spiekermann, R. L. Lander, Daniel Pitzl, Frank Raupach, S. M. Robertson, N. Wulff, B. Fominykh, P. Kasselmann, F. Charles, J. Katzy, H. K. Nguyen, I. V. Gorelov, K. Müller, R.K. Griffiths, R. Grässler, Ch. Coutures, W. Struczinski, U. Krüner-Marquis, G. Müller, M. F. Hess, Emmanuelle Perez, G. Lobo, P. Kostka, J. M. Foster, S. Bourov, Carl R. Brune, M. Barth, J. Turnau, K. Zuber, Eckhart Fretwurst, M. Steenbock, S. K. Kotelnikov, L. Hajduk, B. Andrieu, H. Meyer, S. Kermiche, W. Hildesheim, J. Cvach, Ch. Niedzballa, P. Di Nezza, Peter Robmann, S. Willard, M. Winde, P. Uelkes, Didier Lacour, M. Hütte, L. Johnson, G. Pope, Steve McMahon, P. Baranov, O. Dünger, F. Botterweck, Peter Schleper, T. Krämerkämper, R. Maraček, W. von Schlippe, Marc Besancon, A.S. Belousov, Sergey Rusakov, T. Merz, P. Truöl, H. Pawletta, R. Nisius, J. R. Smith, E. Eisenhandler, Th. Naumann, H. Duhm, E. Gabathuler, M. David, C.L. Davis, M. Flieser, J. Stier, J. Marks, Y. Vazdik, L.R. West, M. Nyberg-Werther, T. R. Ebert, A. Fedotov, Günter Flügge, T. P. Yiou, M. zurNedden, C. Kiesling, A. De Roeck, A. J. Campbell, T. Kurča, J. Janoth, Volker Blobel, R. Eichler, G. Cozzika, F. Eisele, C. Keuker, J.P. Phillips, Klaus Rabbertz, Stefan Valkar, Hannes Jung, Alexander Zhokin, B. Schwab, Pavel Murin, H. Grässler, M. Ibbotson, R. Barschke, Laurent Favart, C. Dollfus, F. Rouse, Ulrich Goerlach, T. C. Nicholls, Peter Schacht, G. C. Lopez, Gregorio Bernardi, Anton Babaev, C. Thiebaux, J. Strachota, and P. E. Reimer
Subjects: Nuclear physics, Physics, Elastic scattering, Particle physics, Cross section (physics), Photon, Physics and Astronomy (miscellaneous), Proton, Detector, High Energy Physics::Experiment, Center of mass, HERA, Dissociation (chemistry)
Abstract: We present a new measurement of the total photoproduction cross section performed with the H1 detector at HERA. For an average centre of mass energy of 200 GeV a value of σtotλp=165±2±11µb has been obtained. A detailed analysis of the data in adequate kinematic regions enabled a decomposition of the total cross section in its elastic, single diffractive dissociation and remaining non-diffractive parts, based on safe assumptions on the double diffractive dissociation contribution.
Published: 1995
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6. Gonadotropin-Releasing Hormone Antagonists: Novel Members of the Azaline B Family

Author: A Corrigan, C Hoeger, A. G. Craig, John B. Porter, Jean Rivier, Guangcheng Jiang, Wylie Vale, and Catherine Rivier
Subjects: Male, Chemistry, Stereochemistry, Molecular Sequence Data, Antagonist, Phenylalanine, Gonadotropin-releasing hormone, Luteinizing Hormone, Peptide hormone, Chemical synthesis, Rats, Gonadotropin-Releasing Hormone, Rats, Sprague-Dawley, chemistry.chemical_compound, Drug Discovery, Peptide synthesis, Animals, Molecular Medicine, Amino Acid Sequence, Receptor, Luteinizing hormone, Cells, Cultured
Abstract: A series of antagonists of gonadotropin-releasing hormone (GnRH) homologous to azaline B ([Ac-DNal1,DCpa2,DPal3,Aph5(Atz),DAph6+ ++(Atz),ILys8,DAla10]GnRH) was synthesized, characterized, and tested in a rat antiovulatory assay (AOA). Selected analogues were also tested in both an in vitro dispersed rat pituitary cell culture assay for inhibition of GnRH-stimulated luteinizing hormone release and an in vitro histamine release assay. The duration of action of some of the most potent and safest analogues in those assays was also determined in the castrated male rat in order to measure the extent (efficacy and duration of action) of inhibition of luteinizing hormone release. Structurally, this series of analogues has novel substitutions (X and Y) in the structure of the azaline B precursor: [Ac-DNal1,DCpa2,DPal3,-Aph5(X),DAph6(Y),++ +ILys8,DAla10]GnRH. These substitutions were designed to confer increased hydrophilicity as compared to that of azaline B (determined by relative retention times on a C18 reverse phase column using a triethylammonium phosphate buffer at pH 7.3) or to make them more easily accessible synthetically. Some bulky substituents were introduced in order to probe the spatial limitations of the receptor's cavity. These substitutions include acylated 4-aminophenylalanine at positions 5 and/or 6 (29 analogues), N alpha-methylated backbone substitutions (six analogues), N omega-isopropylaminophenylalanine at position 8, and hydrophilic amino acids at position 1. Out of 20 novel analogues tested for long duration of action in this series, only seven ([Ac-DNal1,DCpa2,DPal3,Aph5,DAph6,ILys8 ,DAla10]GnRH, [Ac-DNal1,DCpa2,DPal3,Aph5(For),DAph6(For) ,ILys8,DAla10]GnRH, [Ac-DNal1,DCpa2,DPal3,Aph5(Ac),DAph6(Ac),- ILys8,DAla10]GnRH (acyline), [Ac-DNal1,DCpa2,DPal3,Aph5(Pio),DAph6++ +(Pio),ILys8,DAla10]GnRH, [Ac-DNal1,DCpa2,DPal3,Aph5(Atz),DAph6++ +(Ac),ILys8,DAla10]GnRH, [Ac-DNalDCpa2,DPal3,Aph5(Atz-beta Ala),DAph6(Atz-beta Ala),ILys8, DAla10]GnRH, [Ac-DNal1,DCpa2,DPal3,Aph5(Atz-Gab), DAph6(Atz-Gab),ILys8,DAla10]GnRH) had relative potencies and/or duration of action comparable to those of azaline B. The others were one-half to one-tenth as effective as azaline B. N alpha-Methylated backbone substitutions at position 5 yielded analogues that were significantly more hydrophilic presumably because of the breakage of the NH alpha-Tyr5 to Arg8-CO hydrogen bond reported to stabilize a beta-turn encompassing residues 5-8 and which favored beta-sheet formation as shown earlier by Haviv et al. This substitution resulted, however, in an increased potency in the histamine release assay and in significantly shorter duration of action. Similarly, attempts at replacing isopropyllysine in position 8 by either isopropyl-4-aminophenylalanine or isopropyl-4-(aminomethyl)phenylalanine resulted in loss of potency in the AOA. Changes in chirality at position 1 or 10 resulted in analogues that were one-tenth and one-half as potent, respectively, as acyline.(ABSTRACT TRUNCATED AT 400 WORDS)
Published: 1995
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7. A search for heavy leptons at HERA

Author: Peter Robmann, S. Aid, P. E. Reimer, J. Duboc, B. Stella, G. Müller, E. M. Hanlon, Carl R. Brune, M. Barth, L. R. West, V. Korbel, K. Rüter, C. Niebuhr, R. D. Appuhn, H. Krehbiel, A. Gellrich, F. Lamarche, G. G. Winter, B. Gonzalez-Pineiro, Hermann Kolanoski, P. Steffen, D. Clarke, John A Coughlan, Horst Oberlack, K. Rosenbauer, M. Vecko, P. R. Newman, J. Riedlberger, D. Mercer, G. Buschhorn, S. M. Robertson, R. L. Lander, S. Levonian, S. Masson, M. Colombo, D. Goldner, Y. Soloviev, Mikhail Danilov, F. Charles, M. F. Hess, G. Villet, Pierre Marage, H. U. Martyn, Matthias Klein, G. Lindström, K. Stephens, E. Peppel, R. Roosen, C. Gruber, H. P. Wellisch, Max Weber, J. Turnau, T. Jansen, M. Steenbock, Murrough Landon, A. E. Wright, J. Martyniak, G. Thompson, E. Malinovski, M. Kuhlen, A. Courau, B. Andrieu, T. Carli, K. Flamm, Christophe Royon, R. Nisius, Benno List, A. Buniatian, K. C. Hoeger, C. A. Meyer, G. Grindhammer, G. Rädel, D. Lüke, E. Wünsch, B. Fominykh, P. I. P. Kalmus, M. Hampel, B. Kuznik, R. Kaschowitz, W. Hildesheim, Roland Horisberger, A. Valkárová, V. Riech, I. Sheviakov, D. Wegener, W.J. Haynes, Ph. Huet, S. Riess, A. Gruber, I. W. Walker, A. Braemer, K. Rybicki, H. Itterbeck, P. Van Mechelen, M. Hapke, D. Düllmann, H. Henschel, D. Kant, Ch. Pichler, P. Hill, J. Bán, H. J. Behrend, J.C. Bizot, Emmanuelle Perez, Christoph Grab, Kerstin Borras, A. Semenov, M. Goldberg, Peter Schacht, G. C. Lopez, O. Dünger, M. Korn, Winston Ko, Dave Sankey, G. Siegmon, Jean-Arcady Meyer, R. Nahnhauer, E. Barrelet, U. Krüger, F. Botterweck, K. Daum, C. Pascaud, P. Loch, R. Gerhards, G. Weber, U. Straumann, David Cussans, F. Moreau, J. Hladký, J. Martens, Daniel Johnson, Vincent Hedberg, Frank Raupach, G. Knies, Armen Vartapetian, J. D. Dowell, R. J. Ellison, R. Marshall, Guenter Eckerlin, G. Cozzika, Dirk Krücker, L. N. Shtarkov, G. D. Patel, André Schöning, F. Kole, S. Schiek, F. Eisele, A. Jacholkowska, P. Verrecchia, J. R. Smith, S. Dagoret, T. Köhler, M. W. Krasny, F. Linsel, A. Wegener, L. Goerlich, A. Panitch, Martin Erdmann, S. D. Kolya, E. A. De Wolf, Ch. Berger, V. Schröder, R. Herma, Karlheinz Meier, J. Heatherington, J. Haack, Stefan Valkar, U. Obrock, Wolfgang Lange, E. Eisenhandler, Gregorio Bernardi, F. Niebergall, K. H. Hiller, Eckhart Fretwurst, I. O. Skillicorn, H. H. Kaufmann, H. B. Dreis, Eckhard Elsen, F. Brasse, R. C. W. Henderson, D. Newton, J. Gayler, R. Maraček, Anton Babaev, V. Efremenko, J. Ferencei, Steve McMahon, C. Thiebaux, S. Eichenberger, V I. Shekelyan, A. Walther, N. Wulff, J. Tutas, J. D. Burger, R. Prosi, L. Büngener, Hannes Jung, W. von Schlippe, T. Merz, U. Krüner-Marquis, P. Lanius, C. Vallée, E. Sanchez, W. Zimmermann, I. Tichomirov, K. Wacker, R. Steinberg, I. Herynek, J. Baehr, N. Magnussen, S. Mikocki, David Schmidt, J. Strachota, Markus Seidel, V. Tchernyshov, S. Tapprogge, W.D. Dau, N. Sahlmann, E. Evrard, P. Kasselmann, E. Schuhmann, B. Schwab, K. Gabathuler, A. Lebedev, Grzegorz Nowak, S. Egli, J. B. Dainton, C. Jacobsson, P. Biddulph, M. Fleischer, K. Johanssen, M. A. Jabiol, Pavel Murin, H. Grässler, M. Rietz, D. Haidt, H. Hufnagel, J. Feltesse, U. Bassler, M. Ibbotson, G. Bertrand-Coremans, R. Starosta, Daniel Pitzl, J. Kurzhöfer, V. Nagovizin, U. Seehausen, R. Eichler, F. Sefkow, P. Ribarics, G. Heinzelmann, C.D. Hilton, L. Criegee, B. Delcourt, M. Höppner, R. Felst, J.G. Contreras, J. P. Kubenka, U. Kathage, U. Stösslein, H. Meyer, S. Kermiche, Laurent Favart, S. Prell, S. K. Kotelnikov, L. Hajduk, J. Formánek, M. Gebauer, C. Dollfus, J. Garvey, R. Buchholz, C. Leverenz, David Milstead, V. Brisson, G. W. Noyes, A. M. Fomenko, P. A. Smirnov, O. Hamon, H. Küster, H. Shooshtari, F. Rouse, P. Baranov, J. V. Morris, G. Schmidt, Didier Lacour, G. Pope, Peter Schleper, Ulrich Goerlach, Dusan Bruncko, M. Jaffre, J. E. Olsson, Marc Besancon, M. Forbush, A. Schwind, B. Naroska, F. Ferrarotto, A.S. Belousov, Sergey Rusakov, P. Truöl, H. Genzel, W. Bartel, T. Greenshaw, C. Schmidt, J.P. Phillips, J. P. Sutton, P. Di Nezza, Rosario Martín, P. Van Esch, Stephen Maxfield, A. Lindner, J. Janoth, A. Rostovtsev, Claus Kleinwort, J. Stiewe, F. W. Büsser, Volker Blobel, P. Goritchev, C. Keuker, W. Braunschweig, K. Gamerdinger, A. B. Clegg, R. Rylko, Andrew Mehta, N. Gogitidze, R. Sell, D. Neyret, T. Mavroidis, S. Kazarian, U. Siewert, F. Zomer, A. M. Goodall, L. Del Buono, V. Andreev, M. Zimmer, Vincent Boudry, Jean-Francois Laporte, H. Ehrlichmann, Yves Sirois, J. Lipinski, G. Franke, Zhen Zhang, J. Žáček, J. Ebert, J. M. Foster, S. Mani, H. P. Beck, Stephen Burke, A. Usik, M. Savitsky, K. Zuber, J. Cvach, H. Bergstein, Th. Naumann, H. Duhm, E. Gabathuler, E. Deffur, P. Kostka, Ch. Ley, M. David, S. Reinshagen, A. Wagener, H. K. Nguyen, I. V. Gorelov, K. Müller, R. Grässler, Ch. Coutures, W. Struczinski, M. Flieser, J. Stier, M. Arpagaus, Y. Vazdik, M. Nyberg-Werther, T. R. Ebert, A. Fedotov, Günter Flügge, T. P. Yiou, C. Kiesling, A. De Roeck, A. J. Campbell, Richard E. Taylor, T. Ahmed, Th. Wolff, T. Kurča, S. Willard, I. R. Kenyon, H. Spitzer, M. Winde, R. Bernet, P. Uelkes, L. Johnson, H. E. Roloff, Leif J. Jönsson, H. Lohmander, and D. Feeken
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, High Energy Physics::Phenomenology, HERA, Massless particle, Nuclear physics, Particle decay, W and Z bosons, High Energy Physics::Experiment, Neutrino, Lepton
Abstract: A search for direct production of new leptons in the mass range from 10 GeV up to 225 GeV is presented by the H1 experiment at HERA. The data were obtained during 1993 and correspond to an integrated luminosity of 528 nb −1 . The search includes heavy lepton decays to final states e ( ν ) γ and e ( ν ) W , e ( ν ) Z with the subsequent decay of the W and Z bosons into jets or lepton pairs. No evidence was found for the production of new massive electrons or neutrinos in any of the decay channels. Rejection limits for excited electrons and neutrinos are derived.
Published: 1994
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8. Photo- and hadro-production of? (1020),K (892)0 and $$\overline {K} (892)^0 $$ mesons in the energy range 65 to 175 GeV

Author: A. O'Connor, M. Ibbotson, T. J. Brodbeck, Neil A. Thacker, B. Dickinson, R. J. Apsimon, C. McManus, G. Hallewell, F. Fiedler, P. J. Ottewell, D. Barberis, C. Paterson, H.-P. Jakob, R. E. Hughes-Jones, M. T. Hickman, G. D. Lafferty, F. Gebert, W. Galbraith, P. Sharp, R. J. Ellison, S. Holzkamp, A. S. Weigend, T. Charity, B. Diekmann, R. P. Hofmann, J. V. Morris, E. Paul, G. Körsgen, A. T. Doyle, R. C. W. Henderson, D. Reid, J. A. G. Morris, Hugh McCann, P. I. Galumian, N. Brook, J. Waterhouse, J. Eades, A. Holzkamp, R. McClatchey, P. Coyle, N. R. Keemer, R. Oedingen, A. G. Oganesian, D. Newton, M. Baake, P. S. Flower, S. D. Kolya, D. Mercer, H. Rotscheidt, D. Joseph, Klaus Heinloth, S. Soeldner-Rembold, K. C. Hoeger, S. Danaher, M. Davenport, S. Danagulian, C. Gapp, J. Kingler, L. S. Bagdasarian, A. Donnachie, G. W. Wilson, M. Atkinson, R. J. Thompson, J. M. Foster, A. B. Clegg, and L. F. Thompson
Subjects: Physics, Quark, Strange quark, Physics and Astronomy (miscellaneous), Meson, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, Elementary particle, Parton, Quarkonium, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: Inclusive production of ϕ,K*0, and$\overline {K*^0 } $ mesons has been measured in γp, π±p andK± p collisions at beam energies of 65 GeV
Published: 1994
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9. 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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10. Scaling violations of the proton structure function F2 at small x

Author: F. Kole, B. Schwab, Petr Zavada, Pavel Murin, H. Grässler, M. Ibbotson, M. Schulz, D. Lüers, F. Charles, R. Taylor, N. Magnussen, Steve McMahon, Armen Vartapetian, Th. Wolff, Pavel Staroba, P. Verrecchia, H. Spitzer, Richard Nisius, Michel Devel, M. Colombo, E. Evrard, W.D. Dau, J. B. Dainton, Claire Bourdarios, Laurent Favart, C. Dollfus, J. Turnau, M. Steenbock, B. Andrieu, N. Sahlmann, V. Korbel, J. E. Olsson, W. Bartel, Stephen Maxfield, Kerstin Borras, C. Pascaud, V. Schröder, W. von Schlippe, H. H. Kaufmann, Eckhard Elsen, R. Marshall, Dirk Krücker, I. Tichomirov, Murrough Landon, A. E. Wright, G. Lindström, B. Delcourt, G. Bertrand-Coremans, J. Feltesse, Ulrich Goerlach, R. Kaschowitz, R. Ebbinghaus, A. B. Clegg, N. Gogitidze, F. W. Büsser, W. Braunschweig, K. C. Hoeger, Leif J. Jönsson, H. Hufnagel, Alexandre Lebedev, H. Lohmander, L. Criegee, A. Semenov, J. Riedlberger, M. Nyberg, S. Egli, M. Rietz, T. Merz, S. Kasarian, U. Stösslein, C. Leverenz, J. Žáček, Max Klein, L.A. Womersley, J. Formánek, M. A. Jabiol, V. Riech, R. Sell, A. Valkárová, S. Orenstein, J. Harjes, S. M. Robertson, S. Riess, G. Heinzelmann, Mario David, S. Kermiche, E. Barrelet, Tancredi Carli, I. R. Kenyon, S. Reinshagen, A. Walther, C.D. Hilton, Fabian Zomer, M. Hapke, F. Linsel, P. A. Smirnov, A. Lindner, L. N. Shtarkov, U. Bassler, Ch. Berger, Karlheinz Meier, J. Ebert, U. Siewert, F. Brasse, W. Zimmermann, Hans Peter Beck, H. Itterbeck, S. Peters, M. Zimmer, E. Malinovski, M. Kuhlen, Vincent Boudry, A. Buniatian, Mikhail Danilov, J. Heatherington, R. C. W. Henderson, I. F. Fensome, Volker Blobel, K. Stephens, E. Peppel, D. Newton, D. Lewin, L. Büngener, V. Milone, S. Eichenberger, G. Cozzika, D. Wegener, W.J. Haynes, Jean-Francois Laporte, Jean-Arcady Meyer, R. Eichler, C. Keuker, R. Roosen, H. Shooshtari, G. Grindhammer, J. Martyniak, R. Gerhards, A. Drescher, O. Hamon, M. Fleischer, Ch. Ley, Dave Sankey, D. Handschuh, I. Herynek, P. Lanius, Emmanuel Monnier, S. A. Murray, S. Levonian, H. Krehbiel, T. Köhler, M. W. Krasny, P. E. Reimer, B. Fominykh, E. M. Hanlon, V. Tchernyshov, Stefan Valkar, M. Arpagaus, J. Duboc, B. Stella, H. T. Phillips, H. Greif, P. Hill, J. Bán, P. Ribarics, C. Niebuhr, R. Felst, G. D. Patel, H. Meyer, Paul Newman, K. Flamm, A. Mavroidis, V. Efremenko, Hannes Jung, G. Buschhorn, Daniel Pitzl, G. G. Winter, S. Mani, R. M. Martin, J. Tutas, J. D. Burger, M. Rudowicz, M. Eberle, L. Smolik, U. Seehausen, Grzegorz Nowak, Eckhart Fretwurst, M. Korn, P. I. P. Kalmus, David Schmidt, Vincent Hedberg, G. Knies, S. Mikocki, P. Steffen, C. Vallée, P. Biddulph, I. Abt, Stephen Burke, Martin Erdmann, R. Prosi, U. Obrock, F. Niebergall, Nicolas Ellis, G. Weber, U. Straumann, J. V. Morris, H. P. Wellisch, A. Wegner, T. Ahmed, K. Johannsen, J. R. Smith, R. Herma, Christophe Royon, A. Usik, R. D. Appuhn, E. Eisenhandler, Y. Soloviev, T. Kurca, S. K. Kotelnikov, L. Hajduk, M. Jaffré, H. K. Nguyen, I. V. Gorelov, K. Müller, P. Dingus, A. M. Goodall, M. Forbush, P. Baranov, H. Ziaeepour, R. Grässler, Ch. Coutures, W. Struczinski, Peter Schacht, G. C. Lopez, C. A. Meyer, J. Kurzhöfer, A. Schwind, V. Nagovizin, M. Vecko, Peter Schleper, J. Haack, A. W. E. Dann, C. Zeitnitz, Rudolf Langkau, H. Küster, W. Schmitz, A. Gellrich, V. Andreev, M. Rüffer, J. M. Foster, R. J. Ellison, F. Lamarche, M. Savitsky, I. O. Skillicorn, H. B. Dreis, I. W. Walker, K. Rybicki, J. P. Kubenka, Marc Besancon, P. Fuhrmann, A.S. Belousov, D. Düllmann, H. U. Martyn, Sergey Rusakov, P. Truöl, Peter Loch, Winston Ko, Didier Lacour, Guenter Eckerlin, Daniel Johnson, E. Vogel, G. W. Noyes, M. Gennis, H. Henschel, H. J. Behrend, J.C. Bizot, M. Goldberg, Hermann Kolanoski, D. Clarke, John A Coughlan, W. Pilgram, J. Cvach, Gregorio Bernardi, Anton Babaev, C. Thiebaux, Horst Oberlack, A. Leuschner, Christoph Grab, L. Goerlich, R. Vick, André Schöning, I. Sheviakov, G. Villet, Pierre Marage, Yves Sirois, Frank Raupach, J. Strachota, U. Krüger, A. Courau, Roland Bernet, J. Lipinski, K. Gamerdinger, S. Dagoret, J. Garvey, J. Hladký, F. Eisele, G. Franke, V I. Shekelyan, A. M. Fomenko, J. D. Dowell, R. Haydar, P. C. Bosetti, G. Siegmon, Wolfgang Scobel, Ankita Mehta, N. Wulff, K. Wacker, R. Steinberg, E. J. Sanchez, N. Huot, P. Goritchev, Dusan Bruncko, P. Kasselmann, B. Naroska, F. Ferrarotto, H. Genzel, T. Greenshaw, D. Neyret, J.P. Phillips, D. Feeken, W. Hildesheim, R. L. Lander, J. Ferencei, H. Bärwolff, P. Van Esch, J. Marks, A. Rostovtsev, Claus Kleinwort, F. Moreau, S. Willard, A. Jacholkowska, M. Winde, S. D. Kolya, L. Johnson, T. Jansen, G. Rädel, B. Kuznik, Ph. Huet, Ch. Pichler, C. Gruber, W. Flauger, K. Rauschnabel, Wolfgang Lange, E. Binder, J. Gayler, G. Thompson, S. Prell, C. Jacobsson, U. Kathage, C. Schmidt, J. P. Sutton, U. Braun, H. Bergstein, Peter Robmann, Th. Naumann, L. Del Buono, A. Bischoff, H. Duhm, E. Gabathuler, E. Deffur, O. Dünger, P. Kostka, J. Moreels, T. R. Ebert, A. Fedotov, Günter Flügge, T. P. Yiou, C. Kiesling, A. De Roeck, A. J. Campbell, Farid Ould-Saada, Leith Godfrey, L. Urban, M. Flieser, D. Mercer, J. Stier, Y. Vazdik, L.R. West, S. Masson, J. Martens, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), 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), and H1
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Distribution function, Proton, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Range (statistics), Perturbative QCD, HERA, Event (particle physics), Scaling, Gluon
Abstract: An analysis is presented of scaling violations of the proton structure function F 2 ( x , Q 2 ) measured with the H1 detector at HERA in the range of Bjorken x values between x = 3 × 10 −4 and 10 −2 for four-momentum transfers Q > 2 larger than 8.7 GeV 2 . The structure function F 2 ( x , Q 2 ) is observed to rise linearly with ln Q 2 . Under the assumption that the observed scaling violations at small x ⩽ 0.01 are described correctly by perturbative QCD, an estimate is obtained of the gluon distribution function G ( x , Q 0 2 ) at Q 2 2 = 20 GeV 2 .
Published: 1994
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11. 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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12. 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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13. 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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14. 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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15. 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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16. CFD Modeling of an Isolator Shock Train in a Scramjet Engine

Author: Lt Col, Jeffrey M. Donbar, Douglas D. Decker, Col Douglas, Troy C. Hoeger, Paul I. King, and Susan Cox-Stouffer
Subjects: Engineering, business.industry, Isolator, Airflow, Inflow, Computational fluid dynamics, Shock (mechanics), symbols.namesake, Mach number, symbols, Transient (oscillation), Combustion chamber, Aerospace engineering, business
Abstract: §** The dual-mode scramjet engine uses an isolator between the inlet and the combustion chamber to help maintain a stable airflow. A Computational Fluid Dynamics (CFD) model was created based on the isolator test section used at the Air Force Institute of Technology (AFIT). Using the VULCAN CFD code, 2-D results were simulated for inflow Mach numbers of 1.8 and 3. These results will be used later for the development of a 3-D transient model of the isolator.
Published: 2010
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17. Comparison of photon and hadron induced production of ρ0 mesons in the energy range of 65 to 175 GeV

Author: B. Dickinson, D. Joseph, P. J. Ottewell, R. Oedingen, C. Gapp, S. Danagulian, P. S. Flower, C. Paterson, R. E. Hughes-Jones, R. J. Ellison, S. Holzkamp, Neil A. Thacker, N. R. Keemer, S. D. Kolya, A. T. Doyle, A. B. Clegg, S. Danaher, Klaus Heinloth, M. Davenport, C. McManus, L. F. Thompson, G. W. Wilson, T. Charity, B. Diekmann, R. C. W. Henderson, D. Barberis, M. Atkinson, J. Kingler, G. Körsgen, R. P. Hofmann, A. G. Oganesian, P. Coyle, D. Newton, R. J. Apsimon, Hugh McCann, A. O'Connor, J. V. Morris, E. Paul, P. Sharp, M. T. Hickman, S. Soeldner-Rembold, F. Gebert, W. Galbraith, K. C. Hoeger, H. Rotscheidt, R. J. Thompson, J. Eades, A. S. Weigend, P. I. Galumian, L. S. Bagdasarian, J. Waterhouse, J. A. G. Morris, A. Holzkamp, N. H. Brook, M. Baake, A. Donnachie, M. Ibbotson, T. J. Brodbeck, H.-P. Jakob, D. Mercer, G. Hallewell, F. Fiedler, D. Raid, R. McClatchey, G. D. Lafferty, and J. M. Foster
Subjects: Physics, Particle physics, Photon, Physics and Astronomy (miscellaneous), Meson, Hadron, Vector meson dominance, Elementary particle, Nuclear physics, Particle decay, Pion, Pair production, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: The inclusive production of ρ0 mesons was measured in γp andh ± p collisions at beam energies of 65 GeV≦E γ≦175 GeV andE h =80, 140 GeV, respectively, whereh is π orK. Cross sections were determined for all beams and energies as functions ofx F (−0.1≦x F≦1.0),p T (0≦p T≦3.5 GeV/c) and the polar decay angle of the ρ0 by fitting the ρ0 signal in π+π- mass distributions. The ρ0 line shape is found to be distorted from a pure Breit-Wigner distribution throughout most of thex F−p T plane for both photon and hadron beams and a simple explanation is suggested. Throughout the paper emphasis is put on the comparison of photon and hadron beam data. The comparison of cross sections of γp andhp data provides a measure of the Vector Meson Dominance factor throughout thex F−p T range of the ρ0. The ρ0 production at lowp T can be described for both photon and hadron beams by a triple regge model at largex F. Similarly central production is well described by the quark-antiquark fusion model. At largep T there is an excess of ρ0 photoproduction which is consistent with the expected onset of pointlike photon interactions.
Published: 1992
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18. 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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19. Gonadotropin-releasing hormone antagonists with N.omega.-triazolylornithine, -lysine, or -p-aminophenylalanine residues at positions 5 and 6

Author: C Hoeger, A. G. Craig, Marilyn H. Perrin, A Corrigan, William A. Hook, John B. Porter, John Dykert, Reuben P. Siraganian, Jean Rivier, and Paula Guess Theobald
Subjects: Male, Pituitary gland, medicine.medical_specialty, media_common.quotation_subject, Gonadotropin-releasing hormone, Histamine Release, Gonadotropin-Releasing Hormone, Rats, Sprague-Dawley, Structure-Activity Relationship, chemistry.chemical_compound, In vivo, Internal medicine, Drug Discovery, medicine, Animals, Ovulation, media_common, Antagonist, Luteinizing Hormone, Rats, medicine.anatomical_structure, Endocrinology, chemistry, Molecular Medicine, Liberation, Female, Luteinizing hormone, Oligopeptides, Histamine
Abstract: In order to be used as fertility regulators in humans, gonadotropin releasing hormone (GnRH) antagonists must be extremely potent and long acting and exhibit negligible side effects such as stimulating histamine release. To this aim, we have recently synthesized a series of analogues with the standard Ac-DNal1-DCpa2-DPal3 substitutions, where the N omega-amino function of ornithine, lysine, or p-aminophenylalanine (Aph) was converted to the aminotriazolyl (atz) derivatives at positions 5 and 6 with further modifications at positions 7 and 10. The analogues were tested for their ability to bind to pituitary cell membranes, to release histamine in a mast cell assay, to inhibit luteinizing hormone (LH) secretion by castrated male rats or cultured pituitary cells, and to interfere with the ovulation in intact female rats. While the subcutaneous (sc) injection of 50 micrograms of Azaline A (7, [Ac-DNal1,DCpa2,DPal3,Lys5(atz),DLys6++ +(atz),ILys8,DAla10]GnRH) dissolved in 0.2 mL of an aqueous media significantly inhibited LH release in the castrated male rat for 24 h, the same dose of Azaline B (11), [Ac-DNal1,DCpa2,DPal3,Aph5(atz),DAph6++ +(atz),ILys8,DAla10]GnRH, inhibited LH release for 72 h. A similar long duration of action was observed for Antide ([Ac-DNal1,DCpa2,DPal3,Lys5(Nic),DLys6(Nic ),ILys8,DAla10]GnRH) but not for Nal-Glu ([Ac-DNal1,DCpa2,DPal3,Arg5,4-(pmethoxybenzoy l)-D-2-Abu6,DAla10]GnRH). In the same paradigm, a 5-fold dilution of the peptide (50 micrograms in 1 mL) and the use of three injection sites rather than one resulted in significantly shorter duration of action for most of the peptides tested. This suggested that long duration of action might be the result of slow release from the injection site(s). In order to investigate this possibility, Nal-Glu and Azaline B were injected intravenously (i.v.) at three doses (10, 50, 250 micrograms) to castrated male rats. At all doses, both peptides significantly lowered LH levels for 8 h. By 24 h, Nal-Glu (250 micrograms) and Azaline B (50 and 250 micrograms) still measurably inhibited LH secretion. Finally, only Azaline B (250 micrograms) was still active at 48 h. These findings demonstrate that subtle structural modifications will yield peptides with different half-lives after iv administration. These findings led us to investigate the effects of other structural modifications on duration of action. We observed that systematic substitutions at positions 7 (NMeLeu) and 10 (Pro9-NHEt, and Gly-NH2) were found to be deleterious. Of interest was the observation that only the DAla10-NH2 substitution led to long duration of action and enzymatic stability under the conditions tested.(ABSTRACT TRUNCATED AT 400 WORDS)
Published: 1992
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20. Inclusive production of η-mesons in πp,Kp and γp collisions at energies around 100 GeV

Author: R. C. W. Henderson, H. Rotscheidt, D. Reid, Gd Lafferty, Jag Morris, C. Hoeger, Hugh McCann, C. McManus, Gregory David Hallewell, D. Barberis, Rj Apsimon, Ag Oganesian, C. Gapp, Rr Oedingen, Pj Ottewell, S. Danagulian, Ph Sharp, D. Joseph, F. Gebert, B. Dickinson, J. Eades, W. Galbraith, N. H. Brook, Tj Brodbeck, L. F. Thompson, E. Paul, P. Coyle, D. Newton, A. Donnachie, M. Ibbotson, Hp Jakob, Na Thacker, S. Danaher, At Doyle, M. Baake, Re Hughesjones, Jv Morris, S. Holzkamp, Rj Ellison, M. Atkinson, Cn Paterson, As Weigend, J. Waterhouse, D. Mercer, S. Soeldner-Rembold, Pi Galumian, Sd Kolya, M. Davenport, Rj Thompson, Jm Foster, J. Kingler, Ab Clegg, N. R. Keemer, A. Holzkamp, Ls Bagdasarian, T. Charity, B. Diekmann, Mt Hickman, A. O'Connor, Gw Wilson, Klaus Heinloth, G. Koersgen, Richard McClatchey, and Ps Flower
Subjects: Physics, Nuclear physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, Pi, Engineering (miscellaneous), Omega, Scaling
Published: 1992
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21. Inclusive production of π0-mesons in πp,Kp and γp collisions at energies around 100 GeV

Author: R. C. W. Henderson, D. Reid, J. Eades, D. Joseph, A. Holzkamp, S. Holzkamp, J. V. Morris, G. W. Wilson, P. Sharp, J. A. G. Morris, C. Paterson, M. Davenport, M. T. Hickman, F. Gebert, W. Galbraith, N. R. Keemer, Neil A. Thacker, A. G. Oganesian, P. Coyle, H. P. Jakob, C. Hoeger, A. T. Doyle, R. E. Hughes-Jones, R. Oedingen, A. S. Weigend, L. S. Bagdasarian, P. I. Galumian, T. Charity, B. Diekmann, J. Waterhouse, C. McManus, H. Rotscheidt, G. Hallewell, N. H. Brook, R. J. Ellison, S. D. Kolya, B. Dickinson, R. McClatchey, A. O'Connor, M. Baake, G. D. Lafferty, C. Gapp, K. Heinloth, M. Ibbotson, P. J. Ottewell, S. Danagulian, Lester D.R. Thompson, D. Mercer, Dario Barberis, G. Koersgen, T. J. Brodbeck, J. Kingler, J. M. Foster, S. Danaher, D. Newton, R. J. Thompson, A. Donnachie, R. J. Apsimon, A. B. Clegg, S. Soeldner-Rembold, M. Atkinson, Hugh McCann, P. S. Flower, and E. Paul
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, High Energy Physics::Phenomenology, Hadron, Vector meson dominance, Elementary particle, Massless particle, Nuclear physics, Pion, High Energy Physics::Experiment, Vector meson, Nuclear Experiment, Engineering (miscellaneous), Boson
Abstract: Measurements are reported of inclusive production of π0-mesons in the beam fragmentation region in γp, πp andKp collisions. Results include the ratio of π0 production inKp and πp collisions, showing reduced production from fragmentation of theK-meson, and the ratio of π0 production in photon and hadron collisions which shows agreement with modified Vector Meson Dominance at lowPT, and departures at higherPT signalling the onset of direct photon reactions. The pattern of departure from Feynman scaling at highPT points to a contribution of hard parton-parton collisions in both γp and πp collisions.
Published: 1991
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22. Separation of minimum and higher twist in photoproduction of high-P T mesons

Author: Dario Barberis, B. Dickinson, R. Oedingen, A. O'Connor, M. Davenport, M. T. Hickman, F. Gebert, W. Galbraith, S. D. Kolya, P. Sharp, A. S. Weigend, R. C. W. Henderson, D. Reid, P. I. Galumian, J. Waterhouse, P. S. Flower, A. G. Oganesian, P. Coyle, C. McManus, C. Paterson, H. P. Jakob, J. Kingler, N. H. Brook, R. E. Hughes-Jones, M. Baake, L. S. Bagdasarian, S. Holzkamp, M. Ibbotson, R. J. Apsimon, C. Gapp, R. J. Ellison, T. J. Brodbeck, Hugh McCann, E. Paul, A. B. Clegg, D. Joseph, G. Hallewell, J. V. Morris, M. Atkinson, P. J. Ottewell, D. Newton, Neil A. Thacker, G. D. Lafferty, A. T. Doyle, R. J. Thompson, S. Soeldner-Rembold, K. C. Hoeger, J. Eades, R. McClatchey, A. Donnachie, Lester D.R. Thompson, D. Mercer, S. Danaher, G. W. Wilson, H. Rotscheidt, J. M. Foster, N. R. Keemer, A. Holzkamp, T. Charity, B. Diekmann, G. Koersgen, K. Heinloth, Gunnar Ingelman, J. A. G. Morris, and S. Danagulian
Subjects: Quantum chromodynamics, Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, Hadron, Elementary particle, Charged particle, Pion, Classical mechanics, High Energy Physics::Experiment, Twist, Nuclear Experiment, Engineering (miscellaneous), Boson
Abstract: Photo- and hadroproduction data in the beam energy range 65–175 GeV have been studied with a view to isolating higher-twist processes in photoproduction from other point-like and hadron-like contributions. With selection of charged tracks havingp T >2 GeV/c and 0.28
Published: 1991
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23. Forward charge asymmetry in low-P T photoproduction of hadrons

Author: G. Koersgen, E. Paul, L. S. Bagdasarian, S. Soeldner-Rembold, K. C. Hoeger, R. C. W. Henderson, P. S. Flower, N. R. Keemer, S. Danagulian, D. Reid, Lester D.R. Thompson, Richard McClatchey, C. Gapp, Gregory David Hallewell, T. Charity, B. Diekmann, S. Holzkamp, A. B. Clegg, Klaus Heinloth, G. W. Wilson, R. Oedingen, F. Gebert, R. J. Apsimon, D. Mercer, J. M. Foster, H.-P. Jakob, Neil A. Thacker, W. Galbraith, A. O'Connor, N. H. Brook, M. Baake, A. G. Oganesian, P. Coyle, D. Newton, A. T. Doyle, A. Holzkamp, Hugh McCann, C. Paterson, S. Danaher, S. D. Kolya, H. Rotscheidt, C. McManus, A. Donnachie, P. I. Galumian, J. Waterhouse, M. Ibbotson, G. D. Lafferty, D. Barberis, R. J. Thompson, R. E. Hughes-Jones, M. P. Hickman, T. J. Brodbeck, J. Eades, P. J. Ottewell, J. A. G. Morris, M. Atkinson, D. Joseph, R. J. Ellison, P. Sharp, J. V. Morris, A. S. Weigend, M. Davenport, J. Kingler, and B. Dickinson
Subjects: Physics, Nuclear reaction, Particle physics, Physics and Astronomy (miscellaneous), Meson, media_common.quotation_subject, Hadron, Elementary particle, Parton, Asymmetry, Charged particle, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), media_common
Abstract: The charged particle asymmetry, (n+−n−)/(n++n−), in inclusive photoproduction of charged particles on protons has been studied as a function ofxF andpT in the rangesxF>0 and 0
Published: 1990
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24. A study of the point-like interactions of the photon using energy-flows in photo- and hadro-production for incident energies between 65 and 170 GeV

Author: A. O'Connor, N. R. Keemer, C. McManus, J. V. Morris, T. Charity, B. Diekmann, G. W. Wilson, S. Soeldner-Rembold, D. Newton, R. Oedingen, C. Hoeger, B. Dickinson, G. Koersgen, M. T. Hickman, P. J. Ottewell, F. Gebert, W. Galbraith, C. Paterson, A. Donnachie, P. Sharp, C. Gapp, Hugh McCann, G. D. Lafferty, S. D. Kolya, R. C. W. Henderson, H. Rotscheidt, D. Reid, R. J. Apsimon, R. E. Hughes-Jones, A. S. Weigend, A. Holzkamp, R. McClatchey, J. Kingler, Lester D.R. Thompson, J. M. Foster, A. G. Oganesian, P. Coyle, R. J. Ellison, H. P. Jakob, D. Mercer, P. S. Flower, M. Davenport, J. Eades, M. Atkinson, K. Heinloth, D. Joseph, S. Danaher, N. H. Brook, M. Baake, E. Paul, A. B. Clegg, J. A. G. Morris, L. S. Bagdasarian, R. J. Thompson, G. Hallewell, Neil A. Thacker, S. Holzkamp, A. T. Doyle, M. Ibbotson, S. Danagulian, Dario Barberis, T. J. Brodbeck, P. I. Galumian, and J. Waterhouse
Subjects: Physics, Quantum chromodynamics, Range (particle radiation), Particle physics, Photon, Physics and Astronomy (miscellaneous), Nuclear Theory, Hadron, Elementary particle, Charged particle, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Event (particle physics), Particle Physics - Experiment
Abstract: Energy-flow distributions for charged hadrons from interactions of photons, pions and kaons on hydrogen are presented as functions of ΣpT2 in the event plane. Data cover the range 0.0
Published: 1990
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25. Somatostatin receptor gene expression in neuroblastoma

Author: M. S. O'dorisio, F. Chen, C. Hoeger, Jean Rivier, M. Caprara, O'Dorisio Tm, Anne R Albers, Stephen J. Qualman, Douglas A. Balster, Gail D. Wenger, and Pradip Gosh
Subjects: Male, endocrine system, Physiology, Cell Transplantation, Clinical Biochemistry, Transplantation, Heterologous, Gene Expression, Mice, Nude, Biology, Biochemistry, Cellular and Molecular Neuroscience, Mice, Neuroblastoma, fluids and secretions, Endocrinology, Downregulation and upregulation, parasitic diseases, medicine, Tumor Cells, Cultured, Animals, Humans, Receptors, Somatostatin, Receptor, Child, Somatostatin receptor, fungi, Infant, Newborn, Infant, Membrane Proteins, medicine.disease, Molecular biology, Transplantation, Somatostatin, Cell culture, Child, Preschool, COS Cells, Female, hormones, hormone substitutes, and hormone antagonists, Immunostaining
Abstract: Somatostatin receptor expression is a favorable prognostic factor in human neuroblastoma. Somatostatin receptors have been demonstrated in vitro by pharmacologic analysis of tumor tissue and in vivo by diagnostic radioreceptor scintigraphy. However, which receptor subtypes (sst(1), sst(2), sst(3), sst(4), and sst(5)) are expressed in these tumors has not yet been delineated. We used RT-PCR to analyze expression of the five somatostatin receptor genes in 32 neuroblastoma tumor specimens. All 32 tumor specimens expressed mRNA for c-abl and sst(1); sst(2) mRNA was detected in 27/32 samples and somatostatin mRNA was detected in 30/32 tumor specimens. The remaining receptor subtypes, sst(3), sst(4), and sst(5) were variably expressed. Receptor protein for sst(1) and sst(2) was visualized in tumor neuroblasts as well as in endothelial cells of tumor vessels using immunostaining with specific anti-receptor antibodies. The effect of high expression of somatostatin receptors on cell proliferation was examined in SKNSH neuroblastoma cells transfected with sst(1) and sst(2). SS(14) binding to wild-type SKNSH cells was undetectable; but the native peptide bound with high affinity to the SKNSH/sst(1) and SKNSH/sst(2) neuroblastoma cell lines. Pharmacologic analysis of binding with two long-acting analogues, CH275 and octreotide, confirmed selective expression of sst(1) and sst(2) in stably transfected SKNSH cells. Formation of neuroblastoma xenograft tumors in nude mice was significantly delayed for both SKNSH/sst(1) (P
Published: 2000

26. The tracking calorimeter and muon detectors of the H1 experiment at Hera

Author: L. N. Shtarkov, A. Panitch, G. Tappern, R. Nisius, Armen Vartapetian, P. S. Flower, R. Bernet, D. White, K. C. Hoeger, B. Morgan, H. Bergstein, S. D. Kolya, Th. Naumann, U. Bassler, J. Žáček, A. B. Lodge, P. Jovanovic, F. Linsel, J. P Dewulf, H. Novakova, K. Gabathuler, A. Buniatian, D. Wegener, W.J. Haynes, J. R. Smith, R. Herma, S. Schiek, H. Duhm, V. Milone, E. Gažo, J. Mock, Tim Greenshaw, A. Sirous, N.H. Cunliffe, F. Blouzon, Vincent Hedberg, G. Knies, A. Wegner, Paul Richard Newman, Grzegorz Nowak, Emmanuel Monnier, C. Jacobsson, L. R. West, S. Kermiche, Michael Schulz, J. M. Foster, P. Štefan, J-P. Meyer, W. von Schlippe, Leif J. Jönsson, E. Deffur, M. Lemler, T. Köhler, M. W. Krasny, Vladimir Andreev, J. Heatherington, H. Ziaeepour, E. Panaro, J. Kurzhöfer, T. Merz, M. Ibbotson, J. Duboc, B. Stella, D. Hammer, S. Kasarian, Leith Godfrey, P. Ribarics, V. Nagovizin, A. W. E. Dann, L. Laptin, S. Mani, R. Felst, J. Haack, G. Martin, S. Levonian, K. Stephens, H. P. Beck, J.M. Morton, P. Kostka, H. Greif, R. Eichler, I. O. Skillicorn, J.P. Lottin, H. Lohmander, Derek L. G. Hill, V. Efremenko, S. Eichenberger, H. B. Dreis, J. P. Kubenka, U. Gensch, J. H. Köhne, J. Huber, R. Kaschowitz, R. Bernier, D. Newton, K. Zuber, A. Lebedev, Stephen Burke, M. Eberle, J. Staeck, E. Peppel, D. Handschuh, M. Wagener, W. Hildesheim, J. Ferencei, Roland Horisberger, M. Colombo, M. Rietz, S. Aid, K. Flamm, D. Imbault, M. David, Murrough Landon, R.L. Chase, A. E. Wright, H. Krehbiel, A. Valkárová, A. Mavroidis, G. Kemmerling, V. Tchudakov, G. W. Noyes, G. Siegmon, A. Pieuchot, S. Mikocki, M. Seman, K. Rüter, S. Riess, F. Zomer, A. M. Goodall, H. T. Blume, F. Charles, R. Beyer, L. Del Buono, I. Sheviakov, E. Malinovski, M. Kuhlen, U. Dretzler, K. Hangarter, U. Kathage, E. Eisenhandler, D. Haidt, D. Breton, J. Moreels, J. Cvach, K. Thiele, C. Niebuhr, C. Gregory, S. Egli, P. Lanius, K. Gadow, A. Reboux, P. I. P. Kalmus, B. Laforge, Mikhail Danilov, D. Lewin, H. Steiner, Th. Wolff, R. Roosen, D. Kant, F. Moreau, J. Hladký, J. D. Dowell, Zhen Zhang, Y. Soloviev, H. Itterbeck, S. Peters, P. Van Mechelen, M. Charlet, M. Rudowicz, G. Heinzelmann, P E. Hatton, I. Abt, F. Ould-Saada, G. Buschhorn, H. I. Cronström, Z.Y. Feng, U. Lenhardt, U. Harder, V. Tchernyshov, H.-J. Küsel, P. Hill, Steve McMahon, Kerstin Borras, U. Krüger, J.F. Huppert, M. Kolander, Carl R. Brune, M. Barth, E. Gabathuler, J. David, J. Bán, F. Descamps, M. Fleischer, T. R. Ebert, A. Semenov, H. Shooshtari, A. Jacholkowska, J. Martyniak, S. Dagoret, C. A. Meyer, R. J. Thompson, Yves Sirois, H. U. Martyn, A. Busata, A. Fedotov, Günter Flügge, U. Seehausen, T. P. Yiou, U. Krüner-Marquis, M. Vecko, J. C. Biasci, I. W. Walker, I. R. Kenyon, T. Novák, D. Mercer, F. Sefkow, H. Spitzer, A. Gruber, H. Küster, G. Kantel, N. Lugetski, G. Bertrand-Coremans, M. C. Cousinou, K. Johannsen, M. Urban, V I. Shekelyan, R. Haydar, B. Fominykh, A. Leuschner, Christoph Grab, Nicolas Ellis, A. Rudge, P. Fuhrmann, J. Lipinski, C. Zeitnitz, E. Wünsch, K. Wacker, R. Steinberg, A. Nepeipivo, Christophe Royon, M. Korn, K. Ludwig, B. Liss, G. Falley, S. Masson, E. Barrelet, Dave Sankey, P. Burmeister, P. Dingus, F. Krivan, A. Usik, Ch. Ley, J. Feltesse, L. Criegee, G. Franke, A. De Roeck, F. Brasse, L. Goerlich, D. Gillespie, Richard E. Taylor, Michel Devel, B. Naroska, T. Jansen, Emmanuelle Perez, Winston Ko, G. Weber, Björn Lundberg, P. Hartz, V. Masbender, M. Kubantsev, J.F. Connolly, Max Klein, R. J. Ellison, L. Urban, U. Straumann, F. Dupont, C. Pascaud, G. D. Patel, H. Meyer, R. von Staa, S. Rusakov, L. Van Lancker, Dusan Bruncko, P. Nayman, W. Pimpl, Ch. Berger, F. Ferrarotto, H. Henschel, A. Gellrich, U. Berthon, F. Lamarche, T. Kurča, G. Rädel, J. Schütt, A. Drescher, N. Magnussen, Guenter Eckerlin, R. Vick, D.P. Johnson, M. Jaffre, J. E. Olsson, P. Jean, L. Gosset, H. Genzel, W. Fröchtenicht, S. A. Murray, W. Bartel, B. Koppitz, M. Hampel, B. Kuznik, J. Formánek, N. Sahlmann, E. Schuhmann, H. Brettel, P. A. Smirnov, K. Meier, C. Beigbeder, Ph. Huet, K. Tröger, C. Trenkel, G. Reinmuth, Wolfgang Scobel, D. Darvill, P. Biddulph, P. Binko, R. Ebbinghaus, J. Koch, L. Büngener, Ch. Pichler, D. Bederede, J. Martens, H. Laskus, M. Flieser, Kaori Maeshima, F. Kole, Martin Erdmann, Eckhart Fretwurst, J. Stier, J. V. Morris, D. A. Cragg, D. Newman-Coburn, Hermann Kolanoski, Jan Godlewski, M. A. Jabiol, G. Villet, S. Schleif, U. Obrock, J. Marks, F. Niebergall, V. Korbel, Pierre Marage, G. Schmidt, Y. Vazdik, D. Clarke, G. A. Beck, J. Garvey, F. W. Büsser, R B. Hopes, John A Coughlan, A. Coville, R. C. W. Henderson, U. Cornett, C. Vallée, Elzbieta Banas, Rosario Martín, P. Goritchev, A. Epifantsev, H. Quehl, A. M. Fomenko, U. Pein, K. Gamerdinger, Horst Oberlack, Vladimir Rusinov, L. Smolik, H. K. Nguyen, I. Herynek, P. Perrodo, Pavel Shatalov, W. Tribanek, J. Tutas, R. D. Appuhn, W. Braunschweig, M. Forbush, I. V. Gorelov, K. Müller, A. Schwind, R. Sell, S. Tapprogge, W.D. Dau, M. Vanderkelen, D. Lüers, J. D. Burger, Petr Zavada, P. Weissbach, E. Elsen, R. Prosi, Pavel Murin, V. Brisson, H. Grässler, Pavel Staroba, C. Arnault, B. Dulny, A. Courau, J. B. Dainton, C. Paulot, J. Spalek, I. Tichomirov, L.A. Womersley, Claire Bourdarios, R. Grässler, Ch. Coutures, W. Struczinski, Stephen Maxfield, J L. Mills, P. Verrecchia, P. Škvařil, C R. Hedgecock, D. Neyret, N. Huot, U. Siewert, R. L. Lander, H. Bärwolff, J. Stiewe, S. Palanque, A. Rostovtsev, Claus Kleinwort, J. Fent, M. Gennis, B W H. Edwards, V. Schröder, G. Van Beek, A. B. Clegg, Andrew Mehta, J. Riedlberger, H. H. Kaufmann, N. Gogitidze, M. Zimmer, C. Gruber, A. Patoux, M. Nyberg, J. Harjes, S. M. Robertson, A. Walther, W. Flauger, Jean-Francois Laporte, Laurent Favart, Z. Szkutnik, J. Turnau, M. Ruffer, G. Ernst, S. Orenstein, W. Zimmermann, B E. Wyborn, M. Steenbock, I. Giesgen, C. Dollfus, R. Bernard, P. Pailler, J. Ebert, B. Andrieu, A. Strowbridge, H. Hufnagel, Daniel Pitzl, K. Geske, J. Koll, Frank Raupach, K. Finke, S. Günther, S. K. Kotelnikov, L. Hajduk, N. Wulff, A. Perus, Ulrich Goerlach, P. Kasselmann, E. Evrard, Peter Loch, J. Gayler, C.D. Hilton, U. Buchner, G. Lindström, M. Turiot, A. Porrovecchio, B. Delcourt, U. Stösslein, M. Grewe, B. Montes, C. Leverenz, R. Marshall, Dirk Krücker, O. Hamon, V. Bidoli, P. Baranov, D.E. Baynham, V. Commichau, G. Cozzika, Peter Schleper, P. Röpnack, F. Eisele, A. Lindner, J. Janoth, Marc Besancon, A.S. Belousov, J.P. Phillips, Stefan Valkar, P. Truöl, F. Basti, H T. Phillips, Volker Blobel, C. Keuker, Hannes Jung, D. Schmidt, K. Rosenbauer, M. Haguenauer, Peter Schacht, G. C. Lopez, Rudolf Langkau, W. Schmitz, M. Savitski, E. Vogel, Gregorio Bernardi, V. Boudry, Anton Babaev, C. Thiebaux, A. Ducorps, J. Strachota, Jean Sacton, G. Thompson, A. Cyz, H. Riege, D. Düllmann, H. J. Behrend, J.C. Bizot, M. Goldberg, Peter Robmann, J. Šťastný, V. Riech, O. Dünger, M. Hapke, R. Gerhards, P. E. Reimer, Alan Campbell, E. M. Hanlon, J. Jeanjean, G. G. Winter, G. Grindhammer, P. Steffen, Jolanta Olszowska, D. Zarbock, H. P. Wellisch, T. Carli, K. Rauschnabel, Wolfgang Lange, E. Binder, E. Sanchez, D. Sole, S. Prell, I F. Fensome, S. Reinshagen, C. Kiesling, T. Kobler, R J. Day, K. Djiki, T. Külper, S. Karstensen, N. Schirm, M. Arpagaus, K. Rybicki, C. Schmidt, J. P. Sutton, W. Glasgow, Wolfram Erdmann, T. Ahmed, J. Meissner, D. Feeken, J.Y. Parey, S. Willard, H. Schmücker, M. Winde, J. P. Pharabod, L. Johnson, J.M. Baze, F. Martin, V. Lubimov, A. Hrisoho, Kerec, Hélène, 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), H1, 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 ), 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), Elementary Particle Physics, and Vrije Universiteit Brussel
Subjects: Physics, Nuclear and High Energy Physics, Luminosity (scattering theory), Calorimeter (particle physics), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, HERA, Tracking (particle physics), 7. Clean energy, 01 natural sciences, Nuclear physics, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, Calibration, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, Instrumentation, Storage ring, Muon detector
Abstract: Technical aspects of the three major components of the H1 detector at the electron-proton storage ring HERA are described. This paper covers the detector status up to the end of 1994 when a major upgrading of some of its elements was undertaken. A description of the other elements of the detector and some performance figures from luminosity runs at HERA during 1993 and 1994 are given in a paper previously published in this journal.
Published: 1997

27. Development of a selective agonist at the somatostatin receptor subtype sstr1

Author: G, Liapakis, C, Hoeger, J, Rivier, and T, Reisine
Subjects: Kinetics, Mice, Radioligand Assay, Dose-Response Relationship, Drug, Animals, Humans, Guanosine Triphosphate, Receptors, Somatostatin, Somatostatin, Binding, Competitive, Cells, Cultured
Abstract: Somatostatin (SRIF) induces its biological actions by interacting with a family of five recently cloned receptors. SRIF receptor subtype, SSTR1, has high affinity for SRIF, but no ligand has been available that selectively binds to this receptor. Desamino acid(1,2,5) [DTryptophan8, N-p-isopropl-4-aminomethyl-l-phenylalanine9]SRIF(des-AA1,2,5 [DT rp8, IAmp9]SRIF inhibits the binding of [125ITyr11]SRIF to the cloned human SSTR1 with an affinity of 1.8+0.7nM, but does not bind to the other cloned SRIF receptors. des-AA1,5[125ITyr2,DTrp8,IAmp9]SRIF bound selectively, potently and saturably to SSTR1 with a Kd of 0.5 + 0.1 nM and a maximal binding density of 226 +/- 56 fmol/mg of protein. The binding of des-AA1,5[125ITyr2,DTrp8,IAmp9]SRIF to SSTR1 was potently inhibited by SRIF, [DTrp8]SRIF, des-AA1,2,5[DTrp8,IAmp9,DSer13]SRIF and SRIF 28 with K, values of 0.7+0.3, 0.2+0.2, 4.3+0.7 and 0.6+0.1 nM, respectively. SRIF analogs that selectively bind to SSTR2 and SSTR5 were impotent in displacing des-AA1,5[125ITyr2,DTrp8,IAmp9]SRIF from human SSTR1. des-AA1,5[125ITyr2,DTrp8,IAmp9]SRIF binding to SSTR1 expressed in COS-7 cells was reduced by GTPgS, and this effect was prevented by pertussis toxin treatment. In contrast, the binding of[125ITyr11]SRIF to SSTR1 was not affected by these treatments. These findings indicate that des-AA1,5[125ITyr2,DTrp8,IAmp9]SRIF may bind to SSTR1 in a defferent manner than SRIF. des-AA1,2,5[DTrp8,IAmp9]SRIF and its tyrosine analog are the first ligands that selectively bind to SSTR1 with high affinity and should be useful in localizing and determining the functional properties of this receptor.
Published: 1996

28. Phosphorylation of CREB at Ser-133 induces complex formation with CREB-binding protein via a direct mechanism

Author: Vickie J. LaMorte, Marc Montminy, C Hoeger, Toshihiro Nakajima, Ronald M. Evans, Kevin Ferreri, S C Koerber, and D Parker
Subjects: Phosphoserine binding, Transcription, Genetic, Molecular Sequence Data, CREB, Binding, Competitive, Models, Biological, Protein Structure, Secondary, chemistry.chemical_compound, Mice, Coactivator, Cyclic AMP, Serine, Animals, Amino Acid Sequence, CREB-binding protein, Phosphorylation, Protein kinase A, Cyclic AMP Response Element-Binding Protein, Promoter Regions, Genetic, Molecular Biology, Binding Sites, biology, Circular Dichroism, Nuclear Proteins, Cell Biology, 3T3 Cells, CREB-Binding Protein, Cyclic AMP-Dependent Protein Kinases, Peptide Fragments, Cell biology, Protein Structure, Tertiary, Cross-Linking Reagents, Biochemistry, chemistry, Mutagenesis, Phosphoserine, biology.protein, Trans-Activators, Binding domain, Proto-oncogene tyrosine-protein kinase Src, Protein Binding, Transcription Factors, Research Article
Abstract: We have characterized a phosphoserine binding domain in the coactivator CREB-binding protein (CBP) which interacts with the protein kinase A-phosphorylated, and hence activated, form of the cyclic AMP-responsive factor CREB. The CREB binding domain, referred to as KIX, is alpha helical and binds to an unstructured kinase-inducible domain in CREB following phosphorylation of CREB at Ser-133. Phospho-Ser-133 forms direct contacts with residues in KIX, and these contacts are further stabilized by hydrophobic residues in the kinase-inducible domain which flank phospho-Ser-133. Like the src homology 2 (SH2) domains which bind phosphotyrosine-containing peptides, phosphoserine 133 appears to coordinate with a single arginine residue (Arg-600) in KIX which is conserved in the CBP-related protein P300. Since mutagenesis of Arg-600 to Gln severely reduces CREB-CBP complex formation, our results demonstrate that, as in the case of tyrosine kinase pathways, signal transduction through serine/threonine kinase pathways may also require protein interaction motifs which are capable of recognizing phosphorylated amino acids.
Published: 1996

29. Leptoquarks and Compositeness Scales from a Contact Interaction Analysis of Deep Inelastic $e^\pm \, p$ Scattering at HERA

Author: J. Feltesse, S. Levonian, M. Wagener, M. Korn, K. Flamm, J. Žáček, R. Buchholz, R. M. Martin, David Milstead, G. Weber, U. Straumann, A. Meyer, P. A. Smirnov, Steve McMahon, P. I. P. Kalmus, J. Riedlberger, S. Mani, H. P. Beck, A. Braemer, V. Korbel, J. Martens, Th. Naumann, K. Rosenbauer, Stephen Burke, Gianfranco Sciacca, Murrough Landon, Armen Vartapetian, M. Oakden, H. Duhm, J. V. Morris, G. Schmidt, J. Janoth, A. E. Wright, F. Kole, Dusan Bruncko, U. Stößlein, F. Linsel, J. Heatherington, J. Garvey, F. Zomer, D. Newton, S. M. Robertson, P. Lanius, Markus Seidel, A. Glazov, V. Tchernyshov, E. Gabathuler, B. Naroska, F. Ferrarotto, Daniel Pitzl, A. Rostovtsev, H. Meyer, S. Kermiche, K. Gabathuler, A. Buniatian, L. Del Buono, A. M. Fomenko, H. Genzel, Volker Blobel, V. Andreev, G. Thompson, V.L. Hudgson, V. Lubimov, Stephen Maxfield, K. C. Hoeger, T.C. Nicholls, M. Hütte, S. K. Kotelnikov, A. Droutskoi, C. Keuker, D. Wegener, W.J. Haynes, M. Forbush, T. Greenshaw, L. Hajduk, M. J. Burton, J.P. Phillips, M. David, Klaus Rabbertz, V. Riech, S. Reinshagen, S. Tapprogge, H. Ehrlichmann, D. Düllmann, L. R. West, W.D. Dau, J. B. Dainton, R. Maraček, L. N. Shtarkov, Benno List, Didier Lacour, G. Pope, H. Itterbeck, W. von Schlippe, J. Stiewe, P. Van Mechelen, H. Henschel, S. Spielman, A. B. Clegg, R. Rylko, Andrew Mehta, Yves Sirois, I. R. Kenyon, T. Köhler, M. W. Krasny, S. Eichenberger, H. J. Behrend, J.C. Bizot, M. Goldberg, A. Panitch, T. Merz, M. Hapke, F. Lehner, D. Lüke, H. Spitzer, Christophe Royon, Paul Richard Newman, Grzegorz Nowak, C. Jacobsson, P. Van Esch, M. Arpagaus, E. Wünsch, V. Efremenko, Dave Sankey, Claus Kleinwort, Barbara Clerbaux, G. Villet, Pierre Marage, J. Lipinski, J. Bähr, Winston Ko, P. Baranov, G. Franke, N. Gogitidze, C. Pascaud, Peter Schleper, E. Evrard, K. Rüter, C. Niebuhr, W. Hildesheim, A. Courau, K. Stephens, E. Peppel, T. Krämerkämper, Jean-Arcady Meyer, C. A. Meyer, G. D. Patel, Guenter Eckerlin, André Schöning, M. Flieser, R. Gerhards, S. Mikocki, S. Willard, Marc Besancon, D. Goldner, J. Stier, Y. Soloviev, J. W. Lomas, A. Gruber, A. Migliori, G. Martin, I. Sheviakov, J. M. Link, Peter Schacht, G. C. Lopez, A.S. Belousov, Sergey Rusakov, David Schmidt, B. Delcourt, J. Marks, Y. Vazdik, P. Truöl, U. Krüger, Daniel Johnson, R. Nisius, A. Gellrich, R. Roosen, P. E. Reimer, C. Cormack, C. Leverenz, G. Bertrand-Coremans, K. Daum, M. Winde, A. Lebedev, S. Egli, Gregorio Bernardi, V. Boudry, P. Goritchev, P. Uelkes, J. Martyniak, L. Johnson, S. Dagoret, F. Lamarche, O. Hamon, L. Goerlich, M. Rietz, D. Haidt, Anton Babaev, G. G. Winter, M. Nyberg-Werther, B. Fominykh, M. Charlet, P. Loch, K. Rybicki, L. Criegee, C. Thiebaux, J. Ebert, J. Spiekermann, V. Solochenko, U. Kathage, R. Starosta, G. Cozzika, J. Strachota, T. R. Ebert, R. Bernet, Christoph Grab, H. E. Roloff, F. Eisele, V. Brisson, Yong Ban, N. Magnussen, J. Ferencei, V I. Shekelyan, K. Wacker, R. Steinberg, Wolfram Erdmann, Eram Rizvi, G. Heinzelmann, M. Fleischer, Emmanuelle Perez, G. Lobo, J. Formánek, Stefan Valkar, E. Mroczko, M. Gebauer, F. Sefkow, J. R. Smith, E. Eisenhandler, P. Verrecchia, P. Steffen, Ch. Ley, A. Fedotov, Günter Flügge, T. P. Yiou, M. zurNedden, N. Sahlmann, E. Schuhmann, Eckhart Fretwurst, H. Küster, Hannes Jung, D. Neyret, T. Mavroidis, D. Vandenplas, Alexander Zhokin, Leif J. Jönsson, Hermann Kolanoski, D. Clarke, John A Coughlan, G. Knies, Horst Oberlack, A. Wagener, S. Schiek, P. Biddulph, V. Schröder, R. Nahnhauer, E. Barrelet, David Cussans, C. Kiesling, A. De Roeck, A. J. Campbell, B. Schwab, Pavel Murin, H. Grässler, M. Ibbotson, H. Lohmander, A. Wegner, M. A. Jabiol, H. H. Kaufmann, Eckhard Elsen, J. Duboc, B. Stella, E. A. De Wolf, Ch. Berger, Karlheinz Meier, H. K. Nguyen, I. V. Gorelov, K. Müller, P. Bispham, T. Kurča, D. Zarbock, H. P. Wellisch, U. Bassler, Martin Erdmann, C. Wittek, L. Büngener, H. Hufnagel, R. Grässler, Ch. Coutures, W. Struczinski, J. M. Foster, Max Weber, D. Feeken, E. Panaro, J. Kurzhöfer, V. Nagovizin, I. Herynek, S. Aid, R. Barschke, U. Obrock, C.D. Hilton, J.G. Contreras, P. Ribarics, R. Felst, K. Zuber, R. Eichler, J. Haack, Laurent Favart, T. Carli, G. W. Noyes, J. Cvach, Ch. Niedzballa, C. Dollfus, G. Müller, F. Niebergall, I. O. Skillicorn, H. B. Dreis, Carl R. Brune, M. Barth, F. Rouse, D. Mercer, Ulrich Goerlach, R. Marshall, S. Masson, Dirk Krücker, H. Krehbiel, Zhen Zhang, G. Buschhorn, D. Ozerov, H. U. Martyn, Matthias Klein, A. Usik, M. Jaffre, J. E. Olsson, W. Bartel, A. Walther, F. W. Büsser, W. Zimmermann, W. Braunschweig, R. Sell, S. Kazarian, U. Siewert, U. Krüner-Marquis, M. Zimmer, Jean-Francois Laporte, Frank Raupach, N. Wulff, P. Kasselmann, K. H. Hiller, R. C. W. Henderson, J. Tutas, J. D. Burger, R. Prosi, C. Vallée, M. Höppner, K. Stolze, S. Prell, R. D. Appuhn, B. Gonzalez-Pineiro, G. Siegmon, R. L. Lander, R. Kaschowitz, J. H. Köhne, Roland Horisberger, A. Valkárová, R. Beyer, S. Riess, F. Moreau, J. Hladký, J. D. Dowell, G. Lindström, C. Gruber, E. Malinovski, M. Kuhlen, A. Jacholkowska, P. Hill, J. Bán, G. Grindhammer, S. D. Kolya, D. Kant, Kerstin Borras, A. Semenov, F. Brasse, T. Jansen, F. Charles, J. Katzy, H. Rick, G. Rädel, M. F. Hess, P. Kostka, M. Hampel, B. Kuznik, R. J. Ellison, Ph. Huet, J. Turnau, Ch. Pichler, S. Schleif, M. Steenbock, J. P. Sutton, P. Di Nezza, B. Andrieu, Wolfgang Lange, J. Gayler, Peter Robmann, O. Dünger, and F. Botterweck
Subjects: Quark, Physics, Nuclear and High Energy Physics, Particle physics, Scattering, Physics beyond the Standard Model, Hadron, High Energy Physics::Phenomenology, Form factor (quantum field theory), FOS: Physical sciences, HERA, Standard Model, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics::Experiment, Lepton
Abstract: A contact interaction analysis is presented to search for new phenomena beyond the Standard Model in deep inelastic $e^\pm p \rightarrow e^\pm \, hadrons$ scattering. The data are collected with the H1 detector at HERA and correspond to integrated luminosities of $0.909 \ {\rm pb}^{-1}$ and $2.947 \ {\rm pb}^{-1}$ for electron and positron beams, respectively. The differential cross sections $d\sigma / dQ^2$ are measured in the $Q^2$ range bet\-ween $160 \ \GeV^2$ and $20,000 \ \GeV^2$. The absence of any significant deviation from the Standard Model prediction is used to constrain the couplings and masses of new leptoquarks and to set limits on electron--quark compositeness scales and on the radius of light quarks., Comment: 16 pages, latex, 2 figures appended as uuencoded file
Published: 1995

30. Neuropeptide-E-I antagonizes the action of melanin-concentrating hormone on stress-induced release of adrenocorticotropin in the rat

Author: M T, Bluet-Pajot, F, Presse, Z, Voko, C, Hoeger, F, Mounier, J, Epelbaum, and J L, Nahon
Subjects: Male, Melanins, Hypothalamic Hormones, Microinjections, Melanophores, Peptide Fragments, Recombinant Proteins, Circadian Rhythm, Prolactin, Rats, Pituitary Hormones, Adrenocorticotropic Hormone, Stress, Physiological, Growth Hormone, Animals, Basal Metabolism, RNA, Messenger, Rats, Wistar, Injections, Intraventricular
Abstract: The physiological role of melanin-concentrating hormone (MCH) in mammals is still very elusive, but this peptide might participate in the central control of the hypothalamopituitary adrenal (HPA) axis during adaptation to stress. Cloning and sequencing of the rat MCH (rMCH) cDNA revealed the existence of additional peptides encoded into the MCH precursor. Among these peptides, neuropeptide (N) glutamic acid (E) isoleucine (I) amide (NEI) is co-processed and secreted with MCH in rat hypothalamus. In the present work we examined: (1) The pattern of rMCH mRNA expression during the light and dark conditions in the rat hypothalamus and (2) The effect of intracerebroventricular (ICV) injections of rMCH and NEI in the control of basal or ether stress-modified release of corticotropin (ACTH), prolactin (PRL) and growth hormone (GH) secretion in vivo in light-on and light-off conditions. Our data indicate that rMCH mRNA levels do not change during the light-on period, but increase after the onset of darkness. Either alone or co-administered, rMCH and NEI do not modify basal secretion of GH and PRL at any time tested nor do they alter ether stress-induced changes in these two hormonal secretions. At the end of the light on period corresponding to the peak of the circadian rhythm in ACTH, administration of rMCH but not NEI leads to a decrease in ACTH levels while MCH is not effective during the light off period of the cycle (i.e. when basal ACTH levels are already low). Using a moderate ether induced stress, ACTH levels are only stimulated during the dark phase of the cycle.(ABSTRACT TRUNCATED AT 250 WORDS)
Published: 1995

31. A Direct Determination of the Gluon Density in the Proton at Low x

Author: C. A. Meyer, H. U. Martyn, A. Gruber, L. Goerlich, P. E. Reimer, Paul Richard Newman, C. Jacobsson, C. Vallée, C. Cormack, Alan Campbell, J. Feltesse, G. G. Winter, K. Rüter, C. Niebuhr, S. Egli, R. D. Appuhn, G. Grindhammer, Ch. Ley, P. Steffen, Max Klein, R. Buchholz, E. Evrard, D. Goldner, Y. Soloviev, Stefan Tapprogge, J. H. Köhne, R. Maraček, J-P. Meyer, M. W. Krasny, David Milstead, P. A. Smirnov, K. Meier, A. Wagener, K. Stephens, E. Peppel, W. von Schlippe, J. Žáček, B. Delcourt, D. Zarbock, H. P. Wellisch, Max Weber, U. Kathage, E. Malinovski, M. Kuhlen, T. Merz, M. Ibbotson, T. Carli, G. Lindström, C. Gruber, E. Eisenhandler, Christoph Grab, I. Sheviakov, H. K. Nguyen, I. V. Gorelov, K. Müller, C. Leverenz, A. Fedotox, R. Grässler, Ch. Coutures, W. Struczinski, V.L. Hudgson, E. Gabathuler, I. R. Kenyon, K. Gabathuler, A. Buniatian, J. Stiewe, K. C. Hoeger, T.C. Nicholls, J. Spiekermann, O. Hamon, K. Rosenbauer, I. O. Skillicorn, D. Wegener, W.J. Haynes, R. Roosen, J. Martens, H. Spitzer, U. Krüger, S. Dagoret, R. Rylko, Andrew Mehta, N. Gogitidze, Armen Vartapetian, R. Nahnhauer, E. Barrelet, S. Mani, H. P. Beck, David Cussans, Stephen Burke, R. Nisius, V. Riech, M. Hapke, R. J. Ellison, L. R. West, S. Spielman, T. Köhler, F. Kole, U. Stößlein, E. A. De Wolf, Ch. Berger, D. Schmidt, Martin Erdmann, G. Thompson, D. Düllmann, J. Ferencei, V I. Shekelyan, K. Wacker, R. Steinberg, V. Efremenko, C. Wittek, U. Obrock, L. Büngener, D. Kant, Kerstin Borras, A. Semenov, F. Niebergall, V. Korbel, A. Droutskoi, H. J. Behrend, J.C. Bizot, M. Goldberg, G. Bertrand-Coremans, S. Schiek, Peter Robmann, M. zur Nedden, W.D. Dau, P. Goritchev, J. B. Dainton, R. Bernet, M. Jaffre, J. E. Olsson, W. Bartel, I. Herynek, Wolfram Erdmann, G. C. Lopez, S. Mikocki, G. Cozzika, F. Eisele, A. Wegner, R. Gerhards, H. E. Roloff, J. Ebert, R. C. W. Henderson, F. Brasse, J. R. Smith, J.P. Phillips, Stefan Valkar, D. Neyret, F. W. Büsser, E. Panaro, J. Kurzhöfer, V. Nagovizin, S. Eichenberger, W. Braunschweig, T. Mavroidis, A. Meyer, Hannes Jung, Alexander Zhokin, V. Boudry, R. Eichler, Leif J. Jönsson, C. Thiebaux, S. J. Maxfield, K. Zuber, Anton Babaev, R. Sell, S. Kazarian, J. Bähr, Gianfranco Sciacca, F. Zomer, A. Lebedev, M. Oakden, J. Strachota, L. Del Buono, L. Criegee, J. Cvach, Ch. Niedzballa, G. W. Noyes, U. Siewert, U. Krüner-Marquis, O. Dünger, M. Rietz, D. Haidt, M. Zimmer, H. Lohmander, D. Feeken, F. Botterweck, Dusan Bruncko, S. Kermiche, F. Ferrarotto, S. Rusakov, J. Formánek, H. Genzel, H. Ehrlichmann, W. Hildesheim, Yves Sirois, E. Mroczko, M. Gebauer, D. Vandenplas, Eram Rizvi, G. Heinzelmann, S. Willard, J. Lipinski, G. Franke, Zhen Zhang, A. Lindner, J. Janoth, V. Lubimox, M. Fleischer, P. Van Esch, Volker Blobel, Vladimir Andreev, Wolfgang Lange, E. Elsen, C. Keuker, A. Rostovtsev, Claus Kleinwort, M. Winde, H. Küster, A. Usik, H. Oberlack, P. Uelkes, L. Johnson, Klaus Rabbertz, A. B. Clegg, G. Villet, Pierre Marage, M. Colombo, J. V. Morris, G. Schmidt, A. Courau, Murrough Landon, S. J. McMahon, B. Schwab, J. Duboc, B. Stella, A. E. Wright, N. Wulff, J. W. Lomas, M. Forbush, H. Krehbiel, S. Reinshagen, C. Kiesling, Pavel Murin, V. Brisson, H. Grässler, P. Kasselmann, A. Pieuchot, A. Migliori, G. Buschhorn, G. Müller, D. Ozerov, Carl R. Brune, M. Barth, R. Barschke, M. Höppner, Laurent Favart, C. Dollfus, S. Prell, Daniel Pitzl, D. Lüke, E. Wünsch, F. Rouse, Dave Sankey, H. Itterbeck, P. Van Mechelen, M. Arpagaus, K. Rybicki, Ulrich Goerlach, S. K. Kotelnikov, L. Hajduk, G. D. Patel, H. Meyer, Richard Lander, D.P. Johnson, G. Martin, F. Lamarche, J. P. Sutton, R. D. Martin, Didier Lacour, G. Pope, P. Di Nezza, K. Daum, L. N. Shtarkov, Hermann Kolanoski, D. Clarke, G. Knies, P. Bispham, J. Gayler, John A Coughlan, J. F. Laporte, A. Panitch, G. Nowak, F. Lehner, C. Yoyon, J. Haack, J. Riedlberger, H. B. Dreis, R. Marshall, S. Levonian, Dirk Krücker, S. M. Robertson, M. Wagener, M. Hütte, K. Flamm, P. Verrecchia, A. Braemer, A. Walther, T. Jansen, W. Zimmermann, H. Rick, P. I. P. Kalmus, G. Rädel, V. Solochenko, Yong Ban, N. Magnussen, M. Hampel, B. Kuznik, N. Sahlmann, E. Schuhmann, Ph. Huet, P. Biddulph, M. A. Jabiol, U. Bassler, P. Ribarics, R. Felst, J. M. Foster, Ch. Pichler, S. Schleif, G. Siegmon, P. Baranov, Peter Schleper, R. Beyer, T. Krämerkämper, Marc Besancon, A.S. Belousov, P. Truöl, F. Moreau, J. Hladký, J. D. Dowell, J. Martyniak, B. Fominykh, Emmanuelle Perez, G. Lobo, A. Jacholkowska, H. Hufnagel, K. H. Hiller, C.D. Hilton, J.G. Contreras, J. Tutas, J. D. Burger, R. Prosi, K. Stolze, R. Kaschowitz, M. Nyberg-Werther, Roland Horisberger, A. Valkárová, S. Riess, S. Aid, P. Hill, J. Bán, T. R. Ebert, F. Raupach, D. Mercer, Günter Flügge, B. Gonzalez-Pineiro, T. P. Yiou, S. Masson, F. Charles, J. Katzy, M. F. Hess, P. Loch, J. Turnau, A. De Roeck, M. Steenbock, V. Schröder, H. H. Kaufmann, B. Andrieu, A. Gellrich, Benno List, Barbara Clerbaux, J. M. Link, H. Henschel, T. Kurča, S. D. Kolya, Th. Naumann, H. Duhm, P. Kostka, B. Naroska, Winston Ko, E. Fretwurst, M. David, F. Linsel, Tim Greenshaw, J. Heatherington, D. Newton, C. Pascaud, P. Lanius, Markus Seidel, A. Glazov, V. Tchernyshov, Guenter Eckerlin, André Schöning, M. Korn, G. Weber, U. Straumann, P. Schacht, M. Flieser, G. Bernardi, J. Stier, J. Marks, Y. Vazdik, M. Charlet, R. Starosta, F. Sefkow, J. Garvey, A. M. Fomenko, M. J. Burton, 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), 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), H1, and Starita, Sabine
Subjects: Nuclear and High Energy Physics, Proton, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Lattice, Nuclear Theory, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, Momentum, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Statistical analysis, 010306 general physics, Nuclear Experiment, Quantum chromodynamics, Physics, Range (particle radiation), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, HERA, 3. Good health, Gluon, High Energy Physics::Experiment, Atomic physics
Abstract: A leading order determination of the gluon density in the proton has been performed in the fractional momentum range $1.9 \cdot 10^{-3} < x_{g/p} < 0.18$ by measuring multi-jet events from boson-gluon fusion in deep-inelastic scattering with the H1 detector at the electron-proton collider HERA. This direct determination of the gluon density was performed in a kinematic region previously not accessible. The data show a considerable increase of the gluon density with decreasing fractional momenta of the gluons., 19 pages, latex, 5 figures appended as uuencoded file
Published: 1995
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32. Determination of the strong coupling constant from jet rates in deep inelastic scattering

Author: E. Evrard, F. Kole, T. P. Yiou, U. Bassler, B. Gonzalez-Pineiro, P. Ribarics, Armen Vartapetian, J. Garvey, B. Delcourt, R. Felst, A. M. Fomenko, M. Colombo, C. Leverenz, S. Tapprogge, A. Droutskoi, W.D. Dau, J. B. Dainton, R. L. Lander, Peter Robmann, Murrough Landon, A. E. Wright, C. A. Meyer, K. H. Hiller, H. U. Martyn, L. Del Buono, M. Htte, C. Vallée, A. Gruber, S. Eichenberger, R. Nahnhauer, K. Stephens, E. Peppel, P. E. Reimer, C. Cormack, Alan Campbell, N. Magnussen, R. D. Appuhn, N. Sahlmann, E. Schuhmann, E. Barrelet, David Cussans, M. A. Jabiol, E. A. De Wolf, Ch. Berger, H. Itterbeck, P. Van Mechelen, H. Erlichmann, E. M. Hanlon, C. Niebuhr, S. Aid, G. G. Winter, K. Mller, M. Kuhlen, F. Botterweck, A. Mavroidis, F. Charles, E. Eisenhandler, S. Egli, T. Jansen, G. Grindhammer, M. Nyberg-Werther, P. Steffen, U. Krner-Marquis, G. Cozzika, F. Eisele, D. Goldner, D. Krcker, M. F. Hess, E. Prez, J. Kurzhfer, R. Taylor, E. Snchez, I. Herynek, J.P. Phillips, S. Mani, H. P. Beck, Stephen Burke, O. Hamon, V. Schrder, H. Rick, M. Vecko, C. Gruber, H. Grssler, M. Hampel, B. Kuznik, J. Turnau, M. Korn, R. Starosta, Stephen Maxfield, Hannes Jung, Steve McMahon, S. Levonian, A. Gellrich, D. Mercer, M. Steenbock, Paul Richard Newman, Grzegorz Nowak, C. Jacobsson, I. W. Walker, K. Daum, D. Zarbock, Alexander Zhokin, H. P. Wellisch, Ph. Huet, Max Weber, R. J. Ellison, G. Mller, Christoph Grab, Ch. Pichler, S. Prell, G. Weber, U. Straumann, F. Lamarche, M. Wagener, S. Masson, U. Seehausen, F. Sefkow, T. Carli, B. Andrieu, J. Stiewe, A. Lindner, J. Janoth, M. Burton, G. Knies, P. Trul, A. B. Clegg, R. Rylko, K. Rosenbauer, K. Flamm, V. Chernyshov, M. Hppner, S. Schiek, G. Flgge, Andrew Mehta, D. Kant, J. Feltesse, T. R. Ebert, F. Linsel, Hermann Kolanoski, K. C. Hoeger, T.C. Nicholls, G. Siegmon, R. Kaschowitz, K. Johannsen, P. Verrecchia, Christophe Royon, O. Dnger, D. Clarke, Tim Greenshaw, Roland Horisberger, F. Zomer, A. Fedotov, M. Jaffré, Volker Blobel, Kerstin Borras, A. Semenov, N. Gogitidze, J. Haack, C. Keuker, Zhen Zhang, J. Heatherington, H. H. Kaufmann, S. Riess, G. Thompson, R. Beyer, K. Rter, U. Kathage, John A Coughlan, Max Klein, Horst Oberlack, V. Riech, D. Newton, F. Moreau, S. Valkr, P. Baranov, E. Malinovskii, B. Naroska, P. I. P. Kalmus, I. O. Skillicorn, H. B. Dreis, Peter Schleper, J. Buerger, J. D. Dowell, G C. Lpez, Yu. Solovev, J. Formnek, E. Gabathuler, C. Schmidt, J. P. Sutton, P. Di Nezza, Winston Ko, M. Hapke, F. Brasse, F W. Bsser, P. Hill, J. Bán, B. Stella, J. Khne, T. Krmerkmper, R. Buchholz, Daniel Pitzl, A. Jacholkowska, C. Pascaud, B. Schwab, A. Braemer, V. Lubimov, E. Wnsch, P. Lanius, E. Mroczko, Guenter Eckerlin, V. Brisson, Wolfgang Lange, Marc Besancon, David Milstead, Benno List, A.S. Belousov, P. A. Smirnov, K. Meier, H. J. Behrend, J.C. Bizot, Barbara Clerbaux, Mikhail Danilov, Judith Katzy, Carl R. Brune, M. Barth, M. Goldberg, Markus Seidel, A. De Roeck, R. Gerhards, S. K. Kotelnikov, J. Ebert, L. Hajduk, H. Henschel, R. C. W. Henderson, Laurent Favart, R. Roosen, L. N. Shtarkov, J. Martyniak, J. Tutas, A. Panitch, C. Dollfus, F. Rouse, L. Jnsson, R. Prosi, J. Hladky, Ch. Ley, J. Riedlberger, Ulrich Goerlach, T. Kurča, S. M. Robertson, A. Usik, H. Bergstein, B. Fominykh, Yves Sirois, Peter Loch, Wolfram Erdmann, D. Schmidt, T. Khler, R. D. Martin, A. Wegner, Didier Lacour, A. Wagener, Eckhart Fretwurst, S. D. Kolya, Th. Naumann, Peter Schacht, U. Stsslein, G. Pope, H. Duhm, J. Lipinski, G. Franke, G. Villet, J. E. Olsson, H. K. Nguyen, I. V. Gorelov, Gregorio Bernardi, V. Boudry, T. Ahmed, Pierre Marage, Anton Babaev, C. Thiebaux, Ch. Coutures, W. Struczinski, W. Bartel, J. Strachota, R. Grssler, H. Hufnagel, J. M. Foster, E. Deffur, M. Savitsky, K. Zuber, P. Goritchev, P. Kostka, a A. Akhundov, V L. Hudgson, A. Courau, S. Kermiche, E. Panaro, J. Cvach, D. Dllmann, C.D. Hilton, J.G. Contreras, R. Bernet, K. Gamerdinger, J. Duboc, D. Neyret, W. Braunschweig, M. David, R. Eichler, H. E. Roloff, R. Sell, J. P. Kubenka, S. Kazarian, M. Flieser, U. Siewert, E. Rizvi, G. W. Noyes, J. Stier, Y. Vazdik, M. Zimmer, Jean-Francois Laporte, P. Murn, H. Kster, G. Lindstrm, H. Lohmander, S. Dagoret, A. Valkrov, D. Feeken, J. Ferencei, V I. Shekelyan, W. Hildesheim, K. Wacker, R. Steinberg, Frank Raupach, Dusan Bruncko, I. R. Kenyon, H. Spitzer, F. Ferrarotto, H. Genzel, N. Wulff, J. Spiekermann, P. Kasselmann, P. Van Esch, E. Elsen, J. Marks, G. Rdel, A. Rostovtsev, Claus Kleinwort, S. Willard, U P. Krger, Martin Erdmann, U. Obrock, F. Niebergall, V. Korbel, Vladimir Andreev, L. Grlich, M. Winde, P. Uelkes, L. Johnson, G. Bertrand-Coremans, L. Criegee, S. Reinshagen, C. Kiesling, S. Rusakov, M. Gebauer, V. Nagovitsin, M. Arpagaus, K. Gabathuler, K. Rybicki, A. Buniatian, D. Wegener, W.J. Haynes, J. Zcek, L. R. West, M. W. Krasny, H. Krehbiel, G. Buschhorn, V. Efremenko, A. Walther, W. Zimmermann, S. Mikocki, J. Baehr, A. Schning, J. Gayler, D. Lke, R. Marshall, Dave Sankey, G. D. Patel, H. Meyer, D.P. Johnson, J. V. Morris, G. Schmidt, M. Forbush, A. Schwind, R. Maraček, J-P. Meyer, W. von Schlippe, A. Lebedev, T. Merz, M. Ibbotson, M. Rietz, D. Haidt, G. Heinzelmann, M. Fleischer, M. Oakden, H. Shooshtari, R. Nisius, J. R. Smith, L. Buengener, I. Shevyakov, J. Martens, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), 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), H1, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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, Quantum chromodynamics, Nuclear and High Energy Physics, Annihilation, Proton, 010308 nuclear & particles physics, Perturbative QCD, Parton, HERA, Jet (particle physics), Deep inelastic scattering, 01 natural sciences, Nuclear physics, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics
Abstract: Jet rates in deep inelastic electron proton scattering are studied with the H1 detector at HERA for momentum transfers squared between 10 and 4000 GeV 2 . It is shown that they can be quantitatively described by perturbative QCD in next to leading order making use of the parton densities of the proton and with the strong coupling constant α s as a free parameter. The measured value, α s ( M Z 2 ) = 0.123 ± 0.018, is in agreement both with determinations from e + e − annihilation at LEP using the same observable and with the world average.
Published: 1995

33. A study of the fragmentation of quarks in $e^-p$ collisions at Hera

Author: J. E. Olsson, W. Bartel, M. Oakden, F. Kole, F. W. Büsser, H. Meyer, W. Braunschweig, S. Levonian, R. Sell, S. Kazarian, U. Krüner-Marquis, M. Wagener, K. C. Hoeger, T.C. Nicholls, U. Siewert, J. V. Morris, M. Zimmer, J. Gayler, S. Aid, L. Del Buono, G. Schmidt, T. Jansen, E. Fretwurst, V. Andreev, H. Rick, Jean-Francois Laporte, G. Rädel, H. Shooshtari, V. Riech, M. Hampel, B. Kuznik, K. Flamm, Ph. Huet, Ch. Pichler, E. Evrard, C. A. Meyer, R. M. Martin, E. Sanchez, M. Hapke, Wolfram Erdmann, A. Gruber, J. H. Köhne, P. Loch, P. I. P. Kalmus, A. Schwind, Ch. Ley, R. Marshall, Dirk Krücker, R. Maraček, H. Ehrlichmann, M. Nyberg-Werther, E. Malinovski, W. von Schlippe, J. Martens, D. Mercer, A. Braemer, K. Daum, R. Roosen, B. Delcourt, H. Krehbiel, M. Kuhlen, R. D. Appuhn, Frank Raupach, C. Niebuhr, G. Thompson, T. Merz, G. Grindhammer, U. Stösslein, M. Höppner, S. Prell, Daniel Johnson, Jean-Arcady Meyer, G. Buschhorn, D. Lüke, S. Masson, J. Martyniak, N. Magnussen, D. Feeken, A. Wagener, G. Bertrand-Coremans, C. Leverenz, V. Lubimov, W. Lange, W. Ko, W. Hildesheim, G. Knies, J. Lipinski, D. Goldner, N. Wulff, D. Ozerov, T. R. Ebert, R. Nahnhauer, O. Hamon, A. Fedotov, K. Rosenbauer, Günter Flügge, Y. Soloviev, G. Franke, R. Gerhards, B. Fominykh, Emmanuelle Perez, E. Wünsch, Dave Sankey, T. P. Yiou, H. Spitzerx, J. R. Smith, A. Gellrich, I. V. Gorelov, K. Müller, G. Pope, R. J. Ellison, Martin Erdmann, P. Verrecchia, V. Schröder, R. Bernet, J. Janoth, U. Obrock, F. Niebergall, C. Schmidt, J. P. Sutton, P. Di Nezza, I. W. Walker, H. K. Nguyen, P. Uelkes, L. Johnson, A. Wegner, G. D. Patel, R. Grässler, Ch. Coutures, W. Struczinski, H. H. Kaufmann, Eckhard Elsen, P. Bispham, S. Schiek, J. Haack, L. N. Shtarkov, J. M. Foster, A. Panitch, I. O. Skillicorn, H. B. Dreis, E. Barrelet, G. Nowak, David Cussans, S. Tapprogge, M. Charlet, R. Starosta, Mario David, F. Lamarche, C. Kiesling, W.D. Dau, H. E. Roloff, J. B. Dainton, V. Solochenko, E. Panaro, J. Kurzhöfer, D. Düllmann, P. Goritchev, F. Sefkow, K. Gamerdinger, Peter Robmann, C. Cormack, E. M. Hanlon, S. Reinshagen, L. Criegee, Christoph Grab, A. De Roeck, M. Colombo, A. Courau, C. Gruber, A. J. Campbell, H. Henschel, H. U. Martyn, Matthias Klein, V. Nagovizin, G. G. Winter, R. Nisius, David Schmidt, T. Mavroidis, Murrough Landon, M. Arpagaus, E. A. De Wolf, Ch. Berger, K. Stephens, K. Rybicki, H. J. Behrend, J.C. Bizot, M. Goldberg, R. Eichler, E. Peppel, Karlheinz Meier, Fabian Zomer, K. Zuber, C. Wittek, G. Lindström, T. Krdmerkämper, A. E. Wright, Christophe Royon, K. Rütter, F. Charles, J. Katzy, J. P. Kubenka, L. Jönson, H. Lohmander, N. Sahlmann, A. Jacholkowska, E. Schuhmann, P. Steffen, J. Formánek, A. Pieuchot, E. Mroczko, M. Gebauer, Benno List, A. Lebedev, S. Egli, T. Kurča, F. Rouse, Armen Vartapetian, Barbara Clerbaux, Zhen Zhang, P. Biddulph, G. Cozzika, F. Eisele, Peter Schacht, G. W. Noyes, G. C. Lopez, S. Willard, M. Rietz, D. Haidt, L. Büngener, M. F. Hess, J. Cvach, Ch. Niedzballa, I. Herynek, O. Dünger, M. Forbush, M. A. Jabiol, A. Walther, Stefan Valkar, C. Pascaud, D. Zarbock, F. Botterweck, H. Itterbeck, P. Van Mechelen, H. P. Wellisch, Max Weber, H. Hufnagel, J. Žáček, I. Sheviakov, M. Flieser, Guenter Eckerlin, André Schöning, T. Carli, W. Zimmermann, Eram Rizvi, A. Rostovtsev, A. Usik, G. Heinzelmann, Gregorio Bernardi, U. Krüger, Hannes Jung, S. Kermiche, J. Spiekermann, Alexander Zhokin, Paul Richard Newman, C. Jacobsson, D. Kant, E. Eisenhandler, Anton Babaev, Kerstin Borras, A. Belousov, Hermann Kolanoski, J. Baehr, J. Stier, D. Clarke, John A Coughlan, U. Bassler, M. Fleischer, C. Vallée, C. Thiebaux, C.D. Hilton, J.G. Contreras, Y. Vazdik, Th. Naumann, J. Turnau, I. R. Kenyon, S. Dagoret, V.L. Hudgson, Stephen Maxfield, J. Stiewe, H. Küster, J. Strachota, J. Feltesse, L. Goerlach, A. Droutskoi, A. Semenov, Horst Oberlack, A. B. Clegg, R. Rylko, Andrew Mehta, N. Gogitidze, K. Gabathuler, A. Buniatian, M. Steenbock, P. Reimer, P. Ribarics, J. Ferencei, D. Wegener, W.J. Haynes, J. Garvey, V I. Shekelyan, J. Link, A. M. Fomenko, R. Felst, G. Lobo, U. Kathage, K. Wacker, R. Steinberg, A. Lindner, H. P. Beck, Stephen Burke, H. Duhm, V. Boudry, R. Lander, R. Buchholz, V. Brisson, P. Baranov, David Milstead, P. A. Smirnov, F. Brasse, L. R. West, S. Spielman, Peter Schleper, M. J. Burton, E. Gabathuler, Dusan Bruncko, B. Andrieu, P. Kostka, B. Naroska, J. Ebert, F. Ferrarotto, H. Genzel, P. Kasselmann, Volker Blobel, S. Mani, Marc Besancon, Sergey Rusakov, P. Truöl, T. Köhler, M. W. Krasny, R. Kaschowitz, D. Neyret, C. Keuker, T. Greenshaw, Roland Horisberger, A. Valkárová, S. Eichenberger, S. Riess, Klaus Rabbertz, J.P. Phillips, J. Riedlberger, S. M. Robertson, V. Efremenko, P. Hill, J. Bán, B. Schwab, P. Van Esch, M. Hütte, Pavel Murin, H. Grässler, Claus Kleinwort, S. Mikocki, M. Ibbotson, B. Gonzalez-Pineiro, R. Barschke, Laurent Favart, C. Dollfus, Steve McMahon, Ulrich Goerlach, J. Duboc, B. Stella, M. Jaffre, G. Müller, V. Korbel, Y. Sirois, Carl R. Brune, M. Barth, M. Seidel, Daniel Pitzl, M. Korn, G. Weber, U. Straumann, S. K. Kotelnikov, J. Marks, L. Hajduk, F. Linsel, J. Heatherington, D. Newton, M. Winde, Didier Lacour, G. Villet, Pierre Marage, P. Lanius, V. Tchernyshov, Y. Ban, J. W. Lomas, A. Migliori, G. Siegmon, R. Beyer, F. Moreau, J. Hladký, J. D. Dowell, S. D. Kolya, K. H. Hiller, R. C. W. Henderson, J. Tutas, J. D. Burger, R. Prosi, K. Stolze, 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), 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), and H1
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Quark model, High Energy Physics::Phenomenology, FOS: Physical sciences, Parton, HERA, Inelastic scattering, Deep inelastic scattering, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pair production, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics
Abstract: Deep inelastic scattering (DIS) events, selected from 1993 data taken by the H1 experiment at HERA, are studied in the Breit frame of reference. The fragmentation function of the quark is compared with those of \ee data. It is shown that certain aspects of the quarks emerging from within the proton in \ep interactions are essentially the same as those of quarks pair-created from the vacuum in \ee annihilation. The measured area, peak position and widthof the fragmentation function show that the kinematic evolution variable, equivalent to the \ee squared centre of mass energy, is in the Breit frame the invariant square of the four-momentum transfer. We comment on the extent to which we have evidence for coherence effects in parton showers., Comment: 18 pages, latex, 7 figures appended as uuencoded file
Published: 1995

34. Measurement of the $e^+$ and $e^-$ induced charged current cross sections at HERA

Author: R. Nahnhauer, Dusan Bruncko, B. Naroska, F. Ferrarotto, T. R. Ebert, E. Barrelet, H. Genzel, David Cussans, K. Rosenbauer, A. Fedotov, Günter Flügge, T. P. Yiou, H. E. Roloff, T. Greenshaw, M. zurNedden, G. Siegmon, E. A. De Wolf, Ch. Berger, Karlheinz Meier, C. Wittek, Leif J. Jönsson, G. Thompson, C. Kiesling, Christophe Royon, L. Büngener, P. Van Esch, K. C. Hoeger, R. Beyer, A. De Roeck, J. P. Sutton, Claus Kleinwort, A. J. Campbell, H. Lohmander, F. Moreau, J. Hladký, P. Loch, D. Düllmann, Peter Robmann, H. Henschel, V. Riech, I. Herynek, H. J. Behrend, J.C. Bizot, M. Goldberg, A. Jacholkowska, F. Linsel, T. Kurča, M. Hapke, P. Verrecchia, E. Bernardi, K. Daum, J. H. Köhne, Winston Ko, S. D. Kolya, S. Schiek, A. Wegner, E. Panaro, J. Kurzhöfer, V. Schröder, V. Nagovizin, Ch. Ley, H. H. Kaufmann, Eckhard Elsen, C. Pascaud, G. W. Noyes, I. Sheviakov, G. Knies, P. Bispham, J. Heatherington, Guenter Eckerlin, H. U. Martyn, Matthias Klein, E. Malinovski, S. Levonian, K. H. Hiller, R. C. W. Henderson, Jean-Arcady Meyer, M. Kuhlen, S. Dagoret, R. Gerhards, Grzegorz Nowak, J. Ferencei, V I. Shekelyan, K. Rüter, C. Niebuhr, K. Wacker, R. Steinberg, D. Newton, C. Jacobsson, G. Cozzika, F. Eisele, G. Bertrand-Coremans, M. Wagener, G. Grindhammer, J. Tutas, O. Dünger, A. Wagener, F. Botterweck, J. Haack, P. E. Reimer, C. Cormack, I. O. Skillicorn, H. B. Dreis, Th. Naumann, M. Hütte, J.P. Phillips, Stefan Valkar, K. Flamm, R. Roosen, J. D. Burger, S. Aid, R. Prosi, H. Duhm, H. K. Nguyen, I. V. Gorelov, K. Müller, J. V. Morris, L. Criegee, S. Reinshagen, Hannes Jung, Alexander Zhokin, R. M. Martin, G. G. Winter, M. Höppner, S. Prell, U. Krüner, D. Goldner, H. Spitzer, J. Martyniak, G. Schmidt, J. Feltesse, P. Steffen, R. Grässler, Ch. Coutures, W. Struczinski, E. Gabathuler, P. Lanius, Y. Soloviev, J. M. Foster, P. I. P. Kalmus, E. Evrard, M. Colombo, K. Stolze, P. Kostka, J. Formánek, Murrough Landon, K. Zuber, Markus Seidel, A. Glazov, V. Tchernyshov, B. Fominykh, E. Mroczko, M. Gebauer, U. Kathage, A. Braemer, A. Schöning, J. Janoth, D. Zarbock, H. P. Wellisch, V. L. Hudgson, A. E. Wright, Max Weber, D. Kant, C. A. Meyer, Emmanuelle Perez, G. Lobo, T. Carli, Paul Newman, R. J. Ellison, J. Cvach, Ch. Niedzballa, V. Lubimov, J. Žáček, J. Garvey, D. Vandenplas, B. Delcourt, M. David, V. Brisson, P. Di Nezza, M. Forbush, Kerstin Borras, D. Mercer, A. Gruber, Volker Blobel, R. Eichler, H. Itterbeck, P. Van Mechelen, A. Gellrich, M. Korn, H. Krehbiel, A. Semenov, T. Jansen, A. M. Fomenko, J. D. Dowell, C. Leverenz, K. Rybicki, C. Keuker, A. Pieuchot, Eckhart Fretwurst, K. Gabathuler, B. Gonzalez-Pineiro, Daniel Johnson, A. Buniatian, M. Arpagaus, Stephen Maxfield, F. Lamarche, Wolfgang Lange, Klaus Rabbertz, O. Hamon, M. Flieser, J. Stiewe, H. Rick, G. Rädel, A. B. Clegg, R. Rylko, Andrew Mehta, L. N. Shtarkov, D. Wegener, W.J. Haynes, J. Stier, L. Goerlich, Wolfram Erdmann, M. J. Burton, N. Gogitidze, J. Gayler, J. Marks, Y. Vazdik, G. Weber, M. Hampel, B. Kuznik, R. Buchholz, A. Panitch, Christoph Grab, David Milstead, Hermann Kolanoski, Ph. Huet, L.R. West, D. Clarke, D. Lüke, F. Lehner, R. L. Lander, U. Bassler, G. Buschhorn, S. Masson, S. Spielman, U. Straumann, D. Ozerov, T. Köhler, M. W. Krasny, Ch. Pichler, John A Coughlan, Martin Erdmann, S. Schleif, P. A. Smirnov, Horst Oberlack, E. Wünsch, F. Charles, J. Katzy, Dave Sankey, U. Obrock, H. Hufnagel, M. F. Hess, K. Stephens, E. Peppel, F. Niebergall, J. Duboc, B. Stella, P. Ribarics, V. Efremenko, R. Felst, D. Feeken, W. Hildesheim, J. Ebert, M. Charlet, Peter Schacht, G. C. Lopez, C.D. Hilton, J.G. Contreras, R. Starosta, J. Turnau, V. Korbel, M. Steenbock, S. Mikocki, G. Müller, G. D. Patel, U. Krüner-Marquis, V. Boudry, S. Willard, Anton Babaev, F. Brasse, V. Solochenko, C. Thiebaux, Armen Vartapetian, J. Strachota, F. Sefkow, B. Andrieu, Carl R. Brune, M. Barth, G. Martin, David Schmidt, Yong Ban, P. Baranov, B. Schwab, R. Kaschowitz, N. Magnussen, Roland Horisberger, A. Valkárová, Pavel Murin, Peter Schleper, H. Grässler, N. Sahlmann, M. Winde, M. Ibbotson, A. Lebedev, S. Egli, S. Riess, T. Krämerkämper, M. Rietz, E. Schuhmann, Benno List, J. Spiekermann, P. Uelkes, L. Johnson, A. Rostovtsev, A. Droutskoi, Marc Besancon, Barbara Clerbaux, D. Haidt, P. Biddulph, R. Barschke, A.S. Belousov, Sergey Rusakov, P. Hill, J. Bán, M. A. Jabiol, Laurent Favart, C. Dollfus, P. Truöl, J. Riedlberger, Eram Rizvi, F. Rouse, G. Heinzelmann, Ulrich Goerlach, T. C. Nicholls, M. Fleischer, H. Küster, J. Martens, F. Kole, J. M. Link, U. Stößlein, S. Eichenberger, J. Bähr, S. Mani, H. P. Beck, S. Tapprogge, W.D. Dau, J. B. Dainton, Stephen Burke, C. Vallée, R. D. Appuhn, R. Marshall, Dirk Krücker, R. Bernet, A. Walther, W. Zimmermann, G. Lindström, C. Gruber, P. Goritchev, D. Neyret, T. Mavroidis, F. Zomer, L. Del Buono, V. Andreev, H. Ehrlichmann, Yves Sirois, J. Lipinski, G. Franke, Frank Raupach, S. M. Robertson, N. Wulff, P. Kasselmann, M. Jaffre, J. E. Olsson, W. Bartel, F. W. Büsser, W. Braunschweig, R. Sell, I. R. Kenyon, S. Kazarian, U. Siewert, M. Zimmer, Jean-Francois Laporte, Zhen Zhang, A. Usik, A. Meyer, Gianfranco Sciacca, M. Oakden, H. Meyer, S. Kermiche, R. Nisius, Daniel Pitzl, J. R. Smith, E. Eisenhandler, R. Maraček, W. von Schlippe, T. Merz, S. K. Kotelnikov, L. Hajduk, Didier Lacour, G. Pope, G. Villet, Pierre Marage, A. Courau, J. W. Lomas, A. Migliori, Steve McMahon, and M. Nyberg-Werther
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), Nuclear Theory, High Energy Physics::Phenomenology, FOS: Physical sciences, HERA, High Energy Physics - Experiment, Nuclear physics, Transverse plane, High Energy Physics - Experiment (hep-ex), High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Charged current
Abstract: The cross sections for the charged current processes ${e^{-}p}\rightarrow{\nu_e+hadrons}$ and, for the first time, ${e^{+}p}\rightarrow{\overline{\nu}_e+hadrons}$ are measured at HERA for transverse momenta larger than 25 GeV., Comment: 21 pages, latex, 10 figures appended as uuencoded file
Published: 1995
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35. Observation of hard processes in rapidity gap events in γp interactions at HERA

Author: R. Beyer, V. Lubimov, F. Moreau, J. Hladký, J. D. Dowell, M. Colombo, A. Jacholkowska, Murrough Landon, S. D. Kolya, A. E. Wright, Mikhail Danilov, L. N. Shtarkov, V. Droutskoi, R. Roosen, I. Sheviakov, J. Martyniak, Frank Raupach, K. Rosenbauer, J. M. Foster, E. Malinovski, I. R. Kenyon, A. Panitch, B. Fominykh, R. Nahnhauer, K. C. Hoeger, V. Riech, J. Martens, Peter Robmann, H. Itterbeck, P. Van Mechelen, N. Wulff, M. Kuhlen, M. Savitsky, G. Thompson, A. Lebedev, S. Egli, M. Rietz, D. Haidt, H. Spitzer, G. Heinzelmann, H. Küster, Emmanuelle Perez, P. Kasselmann, G. Grindhammer, H. U. Martyn, Matthias Klein, F. Kole, E. Barrelet, David Cussans, K. Zuber, K. Johannsen, D. Lüke, T. Jansen, U. Krüger, Christophe Royon, M. Nyberg-Werther, S. Dagoret, I.O. Skillicorni, M. Hapke, D. Düllmann, E. A. De Wolf, Ch. Berger, Karlheinz Meier, S. Willard, E. Wünsch, Dave Sankey, G. D. Patel, K. Gabathuler, A. Buniatian, Eckhart Fretwurst, J. Cvach, David Schmidt, J. V. Morris, G. Schmidt, M. Forbush, J. Žáček, A. Schwind, D. Wegener, W.J. Haynes, H. Rick, G. Rädel, H. Henschel, H. J. Behrend, J.C. Bizot, M. Goldberg, L. Büngener, Zhen Zhang, D. Kant, Winston Ko, C. Pascaud, J. Ferencei, Kerstin Borras, K. Daum, V I. Shekelyan, S. Levonian, Jean-Arcady Meyer, M. Hampel, B. Kuznik, M. Wagener, Ph. Huet, T. R. Ebert, G. Cozzika, F. Eisele, R. Gerhards, A. Semenov, I. Herynek, Steve McMahon, M. Winde, Stefan Valkar, S. Tapprogge, O. Dünger, Guenter Eckerlin, A. Usik, André Schöning, G. Knies, S. Mani, K. Wacker, R. Steinberg, W.D. Dau, P. Loch, P. Uelkes, L. Johnson, Ch. Pichler, K. Flamm, A. Fedotov, L. R. West, T. Köhler, M. W. Krasny, Hannes Jung, Alexander Zhokin, J. B. Dainton, F. Botterweck, R. M. Martin, S. Schiek, R. Marshall, P. Baranov, R. Bernet, F. Brasse, Dirk Krücker, Peter Schleper, H. P. Beck, Stephen Burke, J. Haack, R. J. Ellison, Günter Flügge, T. P. Yiou, P. I. P. Kalmus, P. E. Reimer, H. E. Roloff, K. Stephens, E. Evrard, Dusan Bruncko, V. Efremenko, Paul Richard Newman, Grzegorz Nowak, C. Jacobsson, T. Krämerkämper, E. Peppel, M. Jaffre, H. Krehbiel, J. E. Olsson, W. Bartel, H. B. Dreis, L. Goerlach, K. H. Hiller, R. C. W. Henderson, B. Naroska, F. Ferrarotto, E. M. Hanlon, H. Genzel, P. Verrecchia, A. Braemer, Leif J. Jönsson, C. Kiesling, G. G. Winter, F. Zomer, A. M. Goodall, A. De Roeck, Marc Besancon, S. Mikocki, Ch. Ley, A.S. Belousov, Wolfram Erdmann, A. J. Campbell, Richard E. Taylor, G. Buschhorn, Sergey Rusakov, F. W. Büsser, P. Truöl, W. Braunschweig, L. Del Buono, J. Garvey, R. Sell, S. Kazarian, J. Tutas, J. D. Burger, T. Greenshaw, V. Schröder, T. Ahmed, B. Delcourt, R. Prosi, C. Vallée, H. H. Kaufmann, Eckhard Elsen, J.P. Phillips, Peter Schacht, G. C. Lopez, U. Stösslein, R. D. Appuhn, P. Steffen, V. Andreev, A. Wagener, C. Leverenz, H. Lohmander, U. Siewert, M. Zimmer, Vincent Boudry, A. M. Fomenko, Jean-Francois Laporte, Wolfgang Lange, P. Van Esch, O. Hamon, U. Krüner-Marquis, H. Hufnagel, S. Aid, D. Feeken, U. Kathage, Claus Kleinwort, G. Villet, Pierre Marage, D. Zarbock, H. P. Wellisch, H. Ehrlichmann, Gregorio Bernardi, Max Weber, H. K. Nguyen, I. V. Gorelov, K. Müller, T. Kurča, T. Carli, H. Bergstein, Th. Naumann, R. Grässler, Ch. Coutures, W. Struczinski, Stephen Maxfield, J. Stiewe, C.D. Hilton, J.G. Contreras, Yves Sirois, A. Wegner, V. Brisson, G. Lindström, C. Gruber, E. Panaro, J. Kurzhöfer, S. Reinshagen, A. Courau, A. B. Clegg, R. Rylko, Andrew Mehta, H. Duhm, N. Gogitidze, V. Nagovizin, Anton Babaev, R. Eichler, J. P. Kubenka, J. Feltesse, C. Thiebaux, J. Strachota, M. Vecko, M. Fleischer, J. Lipinski, G. Franke, D. Mercer, G. W. Noyes, E. Gabathuler, E. Deffur, M. Arpagaus, J. Gayler, R. Starosta, A. Walther, U. Seehausen, J. Ebert, F. Sefkow, B. Schwab, S. Masson, Pavel Murin, H. Grässler, W. Zimmermann, M. Ibbotson, J. Baehr, M. David, E. Sanchez, Benno List, Barbara Clerbaux, Laurent Favart, C. Dollfus, M. Flieser, J. Stier, J. Marks, Y. Vazdik, R. Buchholz, David Milstead, P. A. Smirnov, F. Rouse, Ulrich Goerlach, Daniel Pitzl, M. Höppner, S. Prell, S. K. Kotelnikov, L. Hajduk, R. Kaschowitz, W. Hildesheim, Roland Horisberger, A. Valkárová, Martin Erdmann, S. Riess, A. Lindner, J. Janoth, U. Obrock, F. Niebergall, Didier Lacour, G. Pope, C. Schmidt, J. P. Sutton, Volker Blobel, C. Keuker, P. Di Nezza, P. Hill, J. Bán, F. Charles, M. F. Hess, P. Kostka, J. Turnau, M. Steenbock, B. Andrieu, B. Gonzalez-Pineiro, R. L. Lander, M. Korn, G. Weber, H. Meyer, U. Straumann, S. Kermiche, F. Linsel, J. Heatherington, D. Newton, P. Lanius, Markus Seidel, V. Tchernyshov, V. Korbel, H. Shooshtari, R. Maraček, W. von Schlippe, T. Merz, R. Nisius, J. R. Smith, R. Herma, Armen Vartapetian, E. Eisenhandler, A. Rostovtsev, S. Eichenberger, K. Rüter, C. Niebuhr, D. Goldner, Y. Soloviev, I. W. Walker, K. Rybicki, Christoph Grab, U. Bassler, P. Ribarics, R. Felst, N. Magnussen, N. Sahlmann, E. Schuhmann, P. Biddulph, M. A. Jabiol, C. A. Meyer, A. Gruber, Daniel Johnson, J. Duboc, B. Stella, G. Müller, G. Bertrand-Coremans, P. Goritchev, Carl R. Brune, M. Barth, L. Criegee, K. Gamerdinger, D. Neyret, T. Mavroidis, J. Formánek, M. Gebauer, J. Riedlberger, S. M. Robertson, A. Gellrich, F. Lamarche, Hermann Kolanoski, D. Clarke, John A Coughlan, Horst Oberlack, and G. Siegmon
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Photon, Meson, Scattering, Hadron, Physics::Optics, Elementary particle, HERA, Kinetic energy, Nuclear physics, High Energy Physics::Experiment, Rapidity, Nuclear Experiment
Abstract: Events with no hadronic energy flow in a large interval of pseudo-rapidity in the proton direction are observed in photon-proton interactions at an average centre of mass energy 〈√sγp〉 of 200 GeV These events are interpreted as photon diffractive dissociation. Evidence for hard scattering in photon diffractive dissociation is demonstrated using inclusive single particle spectra, thrust as a function of transverse energy, and the observation of jet production. The data can be described by a Monte Carlo calculation including hard photon-pomeron scattering.
Published: 1995

36. A measurement of the proton structure function <tex>F_{2}$</tex> (x, <tex>Q^{**}2)$</tex>

Author: H. U. Martyn, Matthias Klein, C. Niebuhr, Wolfram Erdmann, L. Criegee, T. Ahmed, M. Hppner, V. Andreev, D. Goldner, L. Grlich, R. Bernet, L. Jnsson, M. Colombo, H. E. Roloff, L. Del Buono, F W. Bsser, I. W. Walker, Murrough Landon, A. E. Wright, M. Kuhlen, K. Rybicki, G. Grindhammer, Yves Sirois, Paul Richard Newman, Grzegorz Nowak, G. Mller, C. Jacobsson, Christoph Grab, U. Seehausen, J. Kurzhfer, F. Botterweck, E. Snchez, P. Trul, H. Lohmander, G. Bertrand-Coremans, R. Kaschowitz, G. Franke, A. Wegner, a A. Akhundov, E. Panaro, W. Hildesheim, R. Eichler, J. P. Kubenka, G. W. Noyes, A. Walther, H. Itterbeck, P. Van Mechelen, J. V. Morris, S. Prell, H. Erlichmann, P. E. Reimer, W. Zimmermann, S. Riess, C. Cormack, E. M. Hanlon, O. Hamon, Armen Vartapetian, J. Baehr, V. Lubimov, T. Jansen, P. Verrecchia, Roland Horisberger, M. Nyberg-Werther, G. Heinzelmann, G. G. Winter, S. Willard, K. Daum, M. Forbush, A. Rostovtsev, R. J. Ellison, H. H. Kaufmann, Jan Hladky, I. Shevyakov, P. Steffen, P. Goritchev, T. R. Ebert, A. Droutskoi, C. Schmidt, H. Rick, N. Magnussen, J. P. Sutton, P. Di Nezza, M. Winde, P. Uelkes, L. Johnson, Ch. Ley, A. Schwind, N. Sahlmann, E. Mroczko, M. Gebauer, A. Fedotov, G. Knies, Eckhard Elsen, V. Nagovitsin, K. Gamerdinger, U. Kathage, E. Schuhmann, V. Chernyshov, M. Steenbock, H. Hufnagel, P. Hill, P. Robmann, J. Bán, H. Grssler, J. Khne, J. Duboc, D. Neyret, S. Schiek, M. Hampel, B. Kuznik, Ph. Huet, S. Kermiche, S. Aid, J. Buerger, C. Kiesling, Wolfgang Lange, A. Lindner, J. Janoth, D. Dllmann, C.D. Hilton, E. Malinovskii, J.G. Contreras, B. Stella, J. Gayler, S. Eichenberger, I. R. Kenyon, T. Krmerkmper, L. N. Shtarkov, Dave Sankey, J. Haack, V. Brisson, A. De Roeck, A. J. Campbell, Richard E. Taylor, Mikhail Danilov, K. Gabathuler, A. Buniatian, D. Wegener, D. Krcker, W.J. Haynes, J. Formnek, A. Wagener, R. Roosen, I. O. Skillicorn, D. Zarbock, H. B. Dreis, Ch. Pichler, H. P. Wellisch, Max Weber, M. A. Jabiol, T. P. Yiou, Martin Erdmann, F. Charles, J. Katzy, T. Khler, U. Obrock, S. Reinshagen, A. Panitch, C. Keuker, J. Martyniak, Carl R. Brune, M. Barth, R. Marshall, M. F. Hess, T. Carli, B. Fominykh, L. R. West, U. Bassler, M. W. Krasny, T. Kurča, M. Htte, P. Kostka, B. Naroska, G. D. Patel, A. Usik, R. Nahnhauer, Zhiqing Zhang, Benno List, H. Krehbiel, J. Turnau, K. Mller, Barbara Clerbaux, H. K. Nguyen, I. V. Gorelov, J. Zcek, H. Bergstein, Eckhart Fretwurst, M. Arpagaus, G. Siegmon, K. C. Hoeger, T.C. Nicholls, B. Schwab, David Schmidt, S. Levonian, A. Gellrich, J. E. Olsson, W. Bartel, G. Buschhorn, V. Efremenko, F. Lamarche, R. Grssler, P. Ribarics, H. Duhm, B. Andrieu, M. Wagener, V. Riech, R. Felst, R. Beyer, K. Flamm, E. Barrelet, David Cussans, S. Mani, E. A. De Wolf, Ch. Berger, F. Moreau, J. D. Dowell, Ch. Coutures, W. Struczinski, J. M. Foster, D. Feeken, W. Braunschweig, M. Savitsky, R. Sell, S. Kazarian, Hermann Kolanoski, D. Clarke, M. Ibbotson, A. Mavroidis, E. Gabathuler, C. Pascaud, M. Hapke, John A Coughlan, A. Lebedev, S. Egli, Horst Oberlack, G. Weber, U. Siewert, E. Deffur, P. Baranov, S. Mikocki, A. Jacholkowska, Peter Schleper, H. P. Beck, Stephen Burke, M. Zimmer, J. Feltesse, Vincent Boudry, Jean-Francois Laporte, P. I. P. Kalmus, M. Rietz, S. Valkr, D. Haidt, Laurent Favart, C. Dollfus, C. A. Meyer, Karlheinz Meier, K. Zuber, Marc Besancon, J. Riedlberger, U. Krner-Marquis, J. Cvach, A.S. Belousov, Sergey Rusakov, B. Gonzalez-Pineiro, G. Schmidt, A. Braemer, V. Blobel, S. M. Robertson, U. Stsslein, S. D. Kolya, Jean-Arcady Meyer, Eram Rizvi, A. Gruber, F. Rouse, M. David, Ulrich Goerlach, M. Vecko, R. Gerhards, Daniel Pitzl, C. Kleinwort, R. L. Lander, Frank Raupach, K. H. Hiller, Daniel Johnson, D. Mercer, I. Herynek, R. C. W. Henderson, E. Prez, N. Wulff, J. Tutas, S. Masson, R. Buchholz, M. Flieser, F. Niebergall, David Milstead, J. Stier, Y. Vazdik, P. Kasselmann, V.L. Hudgson, Stephen Maxfield, P. A. Smirnov, J. Stiewe, R. Prosi, A. Schning, J. Martens, U P. Krger, F. Kole, S. K. Kotelnikov, L. Hajduk, A. B. Clegg, R. Rylko, Andrew Mehta, N. Gogitidze, M. Fleischer, K. Johannsen, H. Kster, D. Lke, P. Murn, K. Rter, Peter Schacht, S. Tapprogge, W.D. Dau, J. B. Dainton, J. Lipinski, K. Stephens, E. Peppel, A. Valkrov, J. Spiekermann, Gregorio Bernardi, J. Ebert, R. Starosta, Anton Babaev, C. Thiebaux, J. Strachota, F. Sefkow, Peter Loch, R. D. Martin, Didier Lacour, G. Pope, J. Garvey, A. M. Fomenko, G. Villet, Pierre Marage, M. J. Burton, H. Spitzer, A. Courau, O. Dnger, Christophe Royon, Winston Ko, Guenter Eckerlin, Steve McMahon, V. Schrder, F. Linsel, G C. Lpez, J. Heatherington, G. Flgge, R. D. Appuhn, C. Gruber, G. Lindstrm, D. Kant, G. Rdel, Kerstin Borras, D. Newton, A. Semenov, Yu. Solovev, F. Brasse, P. Lanius, Markus Seidel, M. Korn, R. Nisius, U. Straumann, Thomas Naumann, V. Korbel, J. R. Smith, L. Buengener, E. Eisenhandler, R. Maraček, Fabian Zomer, G. Cozzika, F. Eisele, W. von Schlippe, Hannes Jung, Alexander Zhokin, T. Merz, C. Vallée, E. Evrard, S. Dagoret, J. Ferencei, V I. Shekelyan, K. Wacker, R. Steinberg, Dusan Bruncko, F. Ferrarotto, H. Genzel, T. Greenshaw, J.P. Phillips, P. Van Esch, J. Marks, B. Delcourt, C. Leverenz, K. Rosenbauer, M. Jaffré, G. Thompson, M. Oakden, H. Meyer, E. Wnsch, H. Henschel, H. J. Behrend, J.C. Bizot, M. Goldberg, H. Shooshtari, 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), and 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)
Subjects: Physics, Diffraction, Nuclear and High Energy Physics, Range (particle radiation), Logarithm, Proton, 010308 nuclear & particles physics, Momentum transfer, Hadron, FOS: Physical sciences, HERA, 01 natural sciences, Measure (mathematics), 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], Atomic physics, 010306 general physics
Abstract: A measurement of the proton structure function $F_{\!2}(x,Q^2)$ is reported for momentum transfer squared $Q^2$ between 4.5 $GeV^2$ and 1600 $GeV^2$ and for Bjorken $x$ between $1.8\cdot10^{-4}$ and 0.13 using data collected by the HERA experiment H1 in 1993. It is observed that $F_{\!2}$ increases significantly with decreasing $x$, confirming our previous measurement made with one tenth of the data available in this analysis. The $Q^2$ dependence is approximately logarithmic over the full kinematic range covered. The subsample of deep inelastic events with a large pseudo-rapidity gap in the hadronic energy flow close to the proton remnant is used to measure the "diffractive" contribution to $F_{\!2}$., 32 pages, ps, appended as compressed, uuencoded file
Published: 1995

37. Comparison of Deep Inelastic Scattering with Photoproduction Interactions at HERA

Author: Steve McMahon, K. Rüter, C. Niebuhr, R. Nisius, D. Goldner, B. Laforge, P. Palmen, R. Marshall, Y. Soloviev, P. E. Reimer, Dirk Krücker, C. Cormack, J. M. Foster, J. Riedlberger, V. Lubimov, G. G. Winter, B. Gonzalez-Pineiro, K. Zuber, S. M. Robertson, G. Bertrand-Coremans, P. Steffen, G. Cozzika, M. Hütte, J. R. Smith, F. Eisele, E. Eisenhandler, H. Krehbiel, A. Pieuchot, G. Buschhorn, D. Ozerov, J. Cvach, Ch. Niedzballa, K. Rybicki, M. Charlet, J.P. Phillips, Stefan Valkar, D. Zarbock, H. P. Wellisch, Wolfram Erdmann, L. Criegee, R. L. Lander, R. Starosta, Max Weber, T. Carli, L. N. Shtarkov, Daniel Pitzl, Christoph Grab, Hannes Jung, Alexander Zhokin, J. H. Köhne, Martin Erdmann, U. Obrock, F. Niebergall, Frank Raupach, A. Walther, A. Meyer, H. Hufnagel, F. Linsel, Peter Schacht, G. C. Lopez, R. Kaschowitz, T. Jansen, K. Stephens, E. Peppel, M. Höppner, S. Prell, J. Formánek, F. Sefkow, Ch. Ley, W. Zimmermann, S. K. Kotelnikov, E. Malinovski, A. Panitch, Gregorio Bernardi, J. Heatherington, K. C. Hoeger, T.C. Nicholls, Paul Richard Newman, Grzegorz Nowak, Gianfranco Sciacca, N. Wulff, E. Mroczko, M. Gebauer, K. Daum, M. Kuhlen, D. Feeken, C.D. Hilton, J.G. Contreras, Roland Horisberger, G. Grindhammer, A. Valkárová, D. Vandenplas, L. Hajduk, H. Rick, P. Kasselmann, S. Riess, F. Lehner, D. Newton, Anton Babaev, M. Oakden, A. Gellrich, C. Thiebaux, C. Jacobsson, E. Evrard, H. U. Martyn, Matthias Klein, V. Riech, J. Theissen, G. Rädel, F. Lamarche, Christophe Royon, G. Knies, J. Strachota, M. Hapke, H. Meyer, S. Kermiche, P. Bispham, M. Hampel, B. Kuznik, Hans Peter Beck, A. Wagener, P. Hill, J. V. Morris, G. Schmidt, J. P. Sutton, P. Di Nezza, J. Spiekermann, I. R. Kenyon, Ph. Huet, P. Goritchev, M. Jaffre, J. E. Olsson, Armen Vartapetian, Ch. Pichler, S. Reinshagen, J. Bán, J. Haack, Didier Lacour, R. Roosen, W. Bartel, J. Martyniak, Winston Ko, J. Janoth, G. Pope, G. Villet, P. Lanius, C. Pascaud, Pierre Marage, Guenter Eckerlin, B. Delcourt, R. Gerhards, André Schöning, S. Schleif, H. Spitzer, A. Rostovtsev, A. Droutskoi, F. W. Büsser, W. Braunschweig, C. Leverenz, K. H. Hiller, D. Neyret, Wolfgang Lange, Hermann Kolanoski, D. Clarke, John A Coughlan, R. Sell, Markus Seidel, A. Glazov, V. Tchernyshov, I. O. Skillicorn, H. B. Dreis, U. Krüner-Marquis, R. C. W. Henderson, J. Tutas, J. D. Burger, R. Maraček, J-P. Meyer, K. Gabathuler, A. Buniatian, D. Wegener, W.J. Haynes, L. R. West, S. Spielman, R. J. Ellison, S. Kazarian, B. Fominykh, A. Courau, P. Dixon, W. von Schlippe, U. Siewert, S. Levonian, O. Hamon, K. Rosenbauer, Horst Oberlack, T. Mavroidis, J. Duboc, B. Stella, M. Zimmer, Volker Blobel, C. Keuker, Klaus Rabbertz, Murrough Landon, A. E. Wright, Dusan Bruncko, U. Kathage, M. Forbush, S. Eichenberger, R. Prosi, V. Brisson, T. Köhler, M. W. Krasny, Vincent Boudry, T. Merz, H. Pawletta, M. Arpagaus, F. Charles, J. Katzy, M. F. Hess, J. Gayler, J. W. Lomas, W. Hildesheim, P. Kostka, A. Migliori, J. Bähr, R.K. Griffiths, Emmanuelle Perez, G. Lobo, Jean-Francois Laporte, J. Garvey, A. M. Fomenko, G. Thompson, R. Bernet, J. Žáček, H. E. Roloff, M. Korn, V. Efremenko, J. Turnau, M. Wagener, Eckhart Fretwurst, V. Solochenko, K. Stolze, Leif J. Jönsson, B. Naroska, R. Nahnhauer, F. Ferrarotto, D. Düllmann, H. Genzel, S. Mikocki, S. Willard, M. Steenbock, B. Schwab, K. Flamm, P. I. P. Kalmus, H. Itterbeck, P. Van Mechelen, A. Braemer, G. Müller, S. Bourov, B. Waugh, E. Barrelet, H. Lohmander, Pavel Murin, H. Grässler, David Cussans, H. Henschel, G. Weber, U. Straumann, G. Siegmon, Carl R. Brune, M. Barth, S. Mani, H. J. Behrend, J.C. Bizot, M. Goldberg, Zhen Zhang, M. J. Burton, A. Lebedev, S. Egli, M. Rietz, M. Ibbotson, E. A. De Wolf, Ch. Berger, Karlheinz Meier, C. Wittek, B. Andrieu, M. Winde, R. Beyer, Peter Robmann, Stephen Burke, L. Büngener, F. Moreau, J. Hladký, P. Uelkes, L. Johnson, J. D. Dowell, Yong Ban, V. Korbel, D. Haidt, N. Magnussen, R. Barschke, I. Herynek, Laurent Favart, A. Jacholkowska, F. Zomer, L. Del Buono, C. Dollfus, V. Andreev, P. Baranov, S. D. Kolya, T. Greenshaw, Eram Rizvi, G. Heinzelmann, F. Rouse, Ulrich Goerlach, A. Usik, N. Sahlmann, H. Ehrlichmann, Peter Schleper, E. Schuhmann, M. Fleischer, T. Krämerkämper, H. Küster, D. Lüke, P. Biddulph, Marc Besancon, A.S. Belousov, E. Wünsch, Dave Sankey, M. A. Jabiol, Sergey Rusakov, P. Truöl, Rosario Martín, G. D. Patel, U. Bassler, P. Van Esch, G. Martin, David Schmidt, O. Dünger, F. Botterweck, Claus Kleinwort, P. Ribarics, R. Felst, S. Schiek, A. Wegner, C. A. Meyer, J. Zsembery, E. Panaro, J. Kurzhöfer, V. Nagovizin, A. Gruber, R. Eichler, P.-O. Meyer, G. W. Noyes, Daniel Johnson, L. Goerlich, I. Sheviakov, U. Krüger, S. Dagoret, J. Ferencei, V I. Shekelyan, K. Wacker, R. Steinberg, Th. Naumann, H. Duhm, E. Gabathuler, M. David, D. Kant, Kerstin Borras, A. Semenov, F. Brasse, C.L. Davis, C. Vallée, R. D. Appuhn, M. Flieser, J. Stier, G. Lindström, C. Gruber, J. Marks, Y. Vazdik, H. K. Nguyen, I. V. Gorelov, K. Müller, R. Grässler, Ch. Coutures, W. Struczinski, V.L. Hudgson, Stephen Maxfield, J. Stiewe, A. B. Clegg, R. Rylko, Andrew Mehta, N. Gogitidze, J. Ebert, M. Nyberg-Werther, J. Feltesse, T. R. Ebert, A. Fedotov, Günter Flügge, T. P. Yiou, M. zurNedden, R. Buchholz, David Milstead, C. Kiesling, P. A. Smirnov, J. Martens, A. De Roeck, A. J. Campbell, F. Kole, U. Stößlein, T. Kurča, S. Tapprogge, W.D. Dau, J. B. Dainton, Benno List, Barbara Clerbaux, J. M. Link, P. Loch, P. Verrecchia, V. Schröder, H. H. Kaufmann, Eckhard Elsen, S. Aid, Yves Sirois, D. Mercer, J. Lipinski, G. Franke, S. Masson, 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), 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), H1, and Starita, Sabine
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Astrophysics::High Energy Astrophysical Phenomena, Hadron, FOS: Physical sciences, Parton, 01 natural sciences, law.invention, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), law, Energy flow, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Rapidity, 010306 general physics, Collider, Nuclear Experiment, Physics, 010308 nuclear & particles physics, HERA, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: Photon-proton ($\gamma p$) interactions with~$Q^25$~GeV$^2$ are studied at the high energy electron-proton collider HERA. The transverse energy flow and relative rates of large rapidity gap events are compared in the two event samples. The observed similarity between $\gamma p$ and $\gamma^* p$ interactions can be understood in a picture where the photon develops as a hadronic object. The transverse energy density measured in the central region of the collision, at $\eta^*=0$ in the $\gamma^* p$ centre of mass frame, is compared with data from hadron-hadron interactions as function of the CMS energy of the collision., Comment: 15 pages, latex, 4 figures appended as uuencoded file
Published: 1995
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38. Total Syntheses

Author: J. E. Rivier, A. G. Craig, E. Mahe, A. Rabinovich, D. Kirby, R. Kaiser, J. Porter, M. T. M. de Miranda, A. de Miranda, G.-C. Jiang, D. Pantoja, L. Cervini, S. L. Lahrichi, T. Goedken, W. Low, C. Miller, J. Dykert, and C. Hoeger
Published: 1994
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39. Deep inelastic scattering events with a large rapidity gap at HERA

Author: F. Kole, H. P. Wellisch, M. Jaffre, J. E. Olsson, W. Bartel, J. Stiewe, F. W. Büsser, M. Vecko, B. Stella, I. O. Skillicorn, R. Maraček, W. Braunschweig, Andrew Mehta, N. Gogitidze, R. Sell, S. Kazarian, P. Biddulph, U. Siewert, C. A. Meyer, H. U. Martyn, V. Brisson, H. Grässler, M. Zimmer, S. Tapprogge, L. Criegee, Paul Richard Newman, C. Jacobsson, Michael Seidel, K. C. Hoeger, J. V. Morris, G. Schmidt, Peter Robmann, Carl R. Brune, M. Barth, J-P. Meyer, P. Goritchev, A. Lindner, J. Ebert, A. Walther, S. Eichenberger, A. M. Goodall, V. Riech, D. Milstead, J. Žáček, S. Rusakov, J. Formánek, Murrough Landon, J. Bürger, W. von Schlippe, G. Knies, H. Itterbeck, P. Van Mechelen, Laurent Favart, T. Merz, C. Dollfus, S. Schiek, E. Peppel, K. Stephens, M. Forbush, L. Goerlich, K. Rosenbauer, D. Neyret, T. Ahmed, A. Schwind, P. Ribarics, J. Baehr, M. Colombo, M. Savitsky, C. Niebuhr, M. Hapke, R. C. W. Henderson, J. R. Smith, J. Haack, M. Ibbotson, H. B. Dreis, J. Martyniak, M. W. Krasny, D. Lüke, E. Eisenhandler, Ulrich Goerlach, S. Egli, J. G. Contreras, E. Malinovski, M. Kuhlen, A. Lebedev, G. Thompson, B. Schwab, U. Kathage, K. Zuber, J. Cvach, U. Bassler, Y. Soloviev, J. Heaterington, B. Fominykh, A. Gellrich, K. Johannsen, O. Dünger, E. Perez, M. Gebauer, V. Hedberg, D. Goldner, D. Düllmann, M. Rietz, D. Haidt, D. Feeken, M. Weber, R. Horisberger, H. Bergstein, S. D. Kolya, Th. Naumann, N. Wulff, Th. Wolff, C. Royon, F. Zomer, F. Botterweck, E. Gabathuler, T.P. Yiou, S. J. McMahon, I. Sheviakov, R. Kaschowitz, Barbara Clerbaux, A. Buniatian, H. Krehbiel, S. Valkár, A. E. Wright, S. Riess, H. Duhm, G. Heinzelmann, H. J. Behrend, J.C. Bizot, M. Goldberg, D. Wegener, W.J. Haynes, S. J. Maxfield, E. Evrard, S. Prell, R. Roosen, R. Rylko, M. Fleischer, W. Hildesheim, P. Kasselmann, I. R. Kenyon, R. Gerhards, P. E. Reimer, K. Gamerdinger, Christoph Grab, R. Felst, J. Kurzhöfer, D. Schmidt, Wolfgang Lange, B. Naroska, Hermann Kolanoski, Winston Ko, D. Clarke, C. Pascaud, John A Coughlan, J. Hladký, P. Hill, J. Bán, H. Küster, L. R. West, U. Krüner-Marquis, T. Köhler, Guenter Eckerlin, C. Vallée, K. Gabathuler, S. Aid, P. Di Nezza, H. Ehrlichmann, H. Spitzer, J. M. Foster, Yves Sirois, S. Willard, G. Lindström, D. Kant, Ch. Ley, V. Boudry, Anton Babaev, R. J. Ellison, A. Valkárová, W. Zimmermann, A. Wagener, J. Feltesse, P. Baranov, J. Lipinski, S. Kermiche, Alan Campbell, G. G. Winter, M. F. Hess, G. Grindhammer, P. Steffen, Peter Schleper, E. M. Hanlon, M. Winde, P. Uelkes, V. Efremenko, S. Mikocki, J. Riedlberger, S. M. Robertson, R. Nahnhauer, E. Barrelet, L. Johnson, David Cussans, E. Wünsch, L. N. Shtarkov, M. A. Jabiol, A. Braemer, Dave Sankey, G. Franke, A. Schöning, R. D. Appuhn, P. Loch, N. Magnussen, J. Turnau, H. K. Nguyen, I. V. Gorelov, R. Grässler, Ch. Coutures, W. Struczinski, A. Panitch, G. Nowak, S. Reinshagen, C. Kiesling, E. A. De Wolf, Ch. Berger, L. Büngener, U. Krüger, Marc Besancon, A.S. Belousov, E. Sanchez, J. Janoth, A. Gruber, N. Sahlmann, G. D. Patel, H. Meyer, Max Klein, V. Schröder, D.P. Johnson, H. Shooshtari, S. Masson, T. Carli, L. Jönsson, R. Buchholz, P. A. Smirnov, K. Meier, J. Gayler, F. R. Rouse, R. Nisius, R. Bernet, L. Del Buono, J. Strachota, Vladimir Andreev, I. Herynek, S. Dagoret, A. Usik, S. Levonian, J. F. Laporte, P. Truöl, F. Lamarche, C. Schmidt, J. P. Sutton, M. Steenbock, B. Andrieu, A. B. Clegg, Volker Blobel, H. E. Roloff, C. Gruber, M. Arpagaus, K. Rybicki, Richard Lander, K. Rüter, C. Keuker, R. Marshall, Z. Zhang, Dirk Krücker, J. Ferencei, V I. Shekelyan, K. Flamm, I. Tichomirov, P. Murín, H. Hufnagel, S. Mani, H. P. Beck, O. Hamon, Kerstin Borras, R. Starosta, A. Semenov, H. H. Kaufmann, Stephen Burke, M. Höppner, C.D. Hilton, J. Duboc, P. Verrecchia, U. Seehausen, D. Lacour, R. Herma, K. Wacker, R. Steinberg, B. Gonzalez-Pineiro, K. Müller, F. Brasse, H. Lohmander, J. Garvey, J. P. Kubenka, Martin Erdmann, A. M. Fomenko, U. Obrock, F. Niebergall, V. Korbel, Dusan Bruncko, D. Mercer, F. Ferrarotto, H. Genzel, P. Van Esch, E. Elsen, A. Rostovtsev, Claus Kleinwort, G. Bertrand-Coremans, A. Wegner, F. Sefkow, P. Lanius, E. Panaro, V. Nagovizin, R. Eichler, G. Müller, C. Thiebaux, G. W. Noyes, Daniel Pitzl, E. Deffur, G. C. Lopez, P. Kostka, E. Fretwurst, B. List, T. R. Ebert, F. Raupach, A. Fedotov, Günter Flügge, A. De Roeck, F. Charles, H. Henschel, T. Kurča, P. Schacht, J. Stier, J. Marks, Y. Vazdik, S. K. Kotelnikov, M. Nyberg-Werther, L. Hajduk, B. Delcourt, T. Mavroidis, U. Stösslein, C. Leverenz, G. Cozzika, F. Eisele, J.P. Phillips, Hannes Jung, R. D. Martin, G. Pope, I. W. Walker, E. Schuhmann, H. Oberlack, G. Villet, Pierre Marage, M. Korn, A. Courau, G. Weber, U. Straumann, R. E. Taylor, G. Bernardi, G. Buschhorn, F. Linsel, Tim Greenshaw, M. Flieser, D. Newton, V. Tchernyshov, K. H. Hiller, J. Tutas, R. Prosi, G. Siegmon, F. Moreau, J. D. Dowell, A. Jacholkowska, A. Vartapetian, T. Jansen, P. I. P. Kalmus, G. Rädel, M. Hampel, B. Kuznik, Ph. Huet, Ch. Pichler, and J. Martens
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Meson, High Energy Physics::Phenomenology, Parton, Vector meson dominance, HERA, Inelastic scattering, Deep inelastic scattering, Nuclear physics, High Energy Physics::Experiment, Rapidity, Vector meson, Nuclear Experiment
Abstract: Evidence is presented using data taken with the H1 detector at HERA for a class of deep inelastic electron-proton scattering (DIS) events (5 < Q2 < 120 GeV2) at low Bjorken-x (10−4 < x < 10−2) which have almost no hadronic energy flow in a large interval of pseudo-rapidity around the proton remnant direction and which cannot be attributed to our present understanding of DIS and fluctuations in final state hadronic fragmentation. From an integrated luminosity of 273 nb−1, 734 events, that is about 5% of the total DIS sample, have no energy deposition greater than 400 MeV forward of laboratory pseudo-rapidity ηmax = 1.8 up to the largest measurable pseudo-rapidity of about 3.65. Evidence that about 10% of observed rapidity gap events are exclusive vector meson electroproduction is presented. Good descriptions of the data are obtained using models based either on a vector meson dominance like picture, which includes a large fraction of inelastic virtual photon dissociation, or on deep inelastic electron-pomeron scattering in which the partonic sub-structure of the latter is resolved.
Published: 1994

40. Corrections to finite-size scaling for quantum chains

Author: V Rittenberg, G V Gehlen, and C Hoeger
Subjects: Band gap, General Physics and Astronomy, Statistical and Nonlinear Physics, Critical point (thermodynamics), Quantum electrodynamics, Free boundary problem, Ising model, Boundary value problem, Statistical physics, Anisotropy, Scaling, Quantum, Mathematical Physics, Mathematics
Abstract: The authors compute the leading order correction to the energy gap at the critical point for the anisotropic Ising and the Z3 Potts quantum chains. Periodic, anti-periodic and free boundary conditions are considered. For the Ising case the corrections are independent of the boundary conditions. In the Z3 case the correction is the same for anti-periodic and free boundary conditions but is 2/5 smaller for the periodic case. The authors have no explanation for this phenomenon.
Published: 1984
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41. Finite-size scaling for quantum chains with an oscillatory energy gap

Author: G. von Gehlen, Vladimir Rittenberg, and C Hoeger
Subjects: Band gap, Quantum mechanics, Transverse field, General Physics and Astronomy, Statistical and Nonlinear Physics, Wave vector, Classical XY model, Scaling, Quantum, Mathematical Physics, Mathematics
Abstract: The authors show that the existence of zeros of the energy gap for finite quantum chains is related to a non-vanishing wavevector. Finite-scaling ansatze are formulated for incommensurable and oscillatory structures. The ansatze are verified in the one-dimensional XY model in a transverse field.
Published: 1985
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42. Hamiltonian formulation of the spherical model ind=r+1 dimensions

Author: M. Henkel and C. Hoeger
Subjects: Spherical model, Multidimensional model, Physics, Nonlinear system, Complex system, Spin system, General Materials Science, Statistical mechanics, Condensed Matter Physics, Spectroscopy, Hamiltonian (control theory), Electronic, Optical and Magnetic Materials, Mathematical physics
Abstract: The spherical model ind=r+1 dimensions is treated using the hamiltonian formulation. The critical behaviour of the model is obtained and is found to be identical to the spherical model.
Published: 1984
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43. Inclusive photoproduction of single charged particles at high p$_{T}$

Author: R. C. W. Henderson, M. Ibbotson, G. D. Lafferty, T. J. Brodbeck, C. N. Paterson, Hugh McCann, D. Reid, C. Gapp, Neil A. Thacker, P. Sharp, A. T. Doyle, P. S. Flower, T. Charity, B. Diekmann, A. Voigtlaender-Tetzner, P. Coyle, S. Holzkamp, A. B. Clegg, R. E. Hughes-Jones, A. O'Connor, L. F. Thompson, P. I. Galumian, S. Soeldner-Rembold, J. Waterhouse, R. J. Ellison, A. S. Weigend, D. Joseph, J. M. Foster, R. McClatchey, H. Rotscheidt, G. Hallewell, S. Danagulian, M. Atkinson, A. G. Oganesian, R. J. Thompson, H. P. Jakob, Dario Barberis, J. Kingler, M. T. Hickman, P. J. Ottewell, F. Gebert, W. Galbraith, A. Donnachie, J. A. G. Morris, C. Hoeger, R. Oedingen, R. J. Apsimon, N. H. Brook, B. Dickinson, G. W. Wilson, M. Baake, C. McManus, E. Paul, D. Newton, S. D. Kolya, D. Mercer, N. R. Keemer, L. S. Bagdasarian, K. Heinloth, J. V. Morris, S. Danaher, G. Koersgen, M. Davenport, and J. Eades
Subjects: Quantum chromodynamics, Physics, Range (particle radiation), Particle physics, Photon, Physics and Astronomy (miscellaneous), Nuclear Theory, Hadron, Measure (mathematics), Omega, Charged particle, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: Single charged-particle inclusive cross sections for photon, pion and kaon beams on hydrogen at the CERN-SPS are presented as functions ofp T andx F . Data cover the range 0.01.6 GeV/c for the photon-induced data. Using the hadron-induced data to estimate the hadronic behaviour of the photon, the difference distributions and ratios of cross sections are a measure of the contribution of the point-like photon interactions. The data are compared with QCD calculations and show broadly similar features.
Published: 1989

44. Experimental study of hard photon radiation processes at Hera

Author: C. Cormack, Alan Campbell, E. M. Hanlon, U. Stsslein, G. G. Winter, Wolfgang Lange, G. Grindhammer, P. Steffen, V. Lubimov, G. Siegmon, Frank Raupach, K. Rosenbauer, S. M. Robertson, R. Beyer, F. Moreau, J. D. Dowell, E. Malinovskii, D. Zarbock, D. Schmidt, K. Rter, Daniel Pitzl, N. Wulff, P. Kasselmann, M. Jaffré, G. Thompson, J. Buerger, Peter Schacht, B. Stella, H. P. Wellisch, Max Weber, L. N. Shtarkov, A. Jacholkowska, N. Magnussen, S. K. Kotelnikov, T. Krmerkmper, J. Gayler, K. Gabathuler, A. Buniatian, D. Wegener, W.J. Haynes, L. Hajduk, S. Aid, U P. Krger, N. Sahlmann, G. Villet, Gregorio Bernardi, V. Boudry, Pierre Marage, J. Feltesse, A. Courau, A. Panitch, M. W. Krasny, Peter Loch, Armen Vartapetian, Axel Lindner, R. Marshall, E. Schuhmann, Anton Babaev, Didier Lacour, G. Pope, Martin Erdmann, J. V. Morris, G. Schmidt, F. R. Rouse, V. Efremenko, A. Droutskoi, U. Obrock, J. G. Contreras, C. Thiebaux, J. Strachota, K. Gamerdinger, H. Krehbiel, E. Wnsch, H. J. Behrend, J.C. Bizot, M. Goldberg, R. Nisius, R. Grssler, G. Buschhorn, F. Niebergall, V. Korbel, M. Forbush, M. Htte, A. Schwind, M. A. Jabiol, E. Evrard, Max Klein, S. Mikocki, H. E. Roloff, K. Johannsen, K. C. Hoeger, S. Eichenberger, Carl R. Brune, M. Barth, Zhen Zhang, Vladimir Andreev, J. M. Foster, Christophe Royon, C. Niebuhr, A A. Akhundov, B. Schwab, V. Brisson, T. Jansen, H. Rick, R. Kaschowitz, Roland Horisberger, S. Riess, Steve McMahon, Dave Sankey, S. Egli, S. Valkr, T. P. Yiou, U. Bassler, R. Buchholz, D. Mercer, J. R. Smith, D. Goldner, L. Buengener, F. Linsel, P. A. Smirnov, K. Meier, G. Bertrand-Coremans, Tim Greenshaw, S. Levonian, A. Wegner, B. Naroska, V. L. Hudgson, G. D. Patel, Winston Ko, B. Delcourt, M. Kuhlen, V. Riech, A. Usik, H. Meyer, H. Grssler, M. Hampel, B. Kuznik, Stefan Tapprogge, E. Panaro, M. Savitsky, D.P. Johnson, Hans Peter Beck, H. Lohmander, A. Walther, J. Heatherington, S. Masson, K. Zuber, T. Kurca, M. Wagener, C. Pascaud, L. Criegee, D. Newton, P. Hill, I. W. Walker, V. Chernyshov, J. E. Olsson, W. Bartel, G. Mller, Christoph Grab, Laurent Favart, R. Eichler, C. Leverenz, C. Dollfus, Guenter Eckerlin, S. Rusakov, L. Grlich, M. Hapke, J. P. Kubenka, R. Nahnhauer, M. Hess, Ulrich Goerlach, Ph. Huet, Ch. Pichler, W. Zimmermann, P. Ribarics, J. Baehr, R. Felst, J. Bán, T. Ahmed, E. Barrelet, E. Mroczko, M. Gebauer, D. Kant, K. Flamm, David Cussans, A. Mavroidis, K. Stephens, E. Peppel, V. Nagovitsin, O. Dnger, G. Rdel, Kerstin Borras, R. M. Martin, W. Braunschweig, G. W. Noyes, P. Lanius, T. C. Nicholls, A. Gellrich, R. Sell, S. Kazarian, F. Lamarche, K. H. Hiller, R. C. W. Henderson, M. Hppner, A. Lebedev, J. Cvach, M. Oakden, L. Jnsson, M. Rietz, U. Siewert, P. Verrecchia, E. Snchez, P. I. P. Kalmus, G C. Lpez, E. A. De Wolf, Ch. Berger, M. Zimmer, G. Cozzika, F. Eisele, J. Janoth, E. Eisenhandler, R. Gerhards, R. J. Ellison, Jean-Francois Laporte, D. Haidt, G. Lindstrm, J. Tutas, Eram Rizvi, I. R. Kenyon, G. Heinzelmann, A. Semenov, Hermann Kolanoski, D. Clarke, John A Coughlan, H. H. Kaufmann, K. Mller, J.P. Phillips, C. A. Meyer, H. U. Martyn, A. Braemer, S. Dagoret, Volker Blobel, Paul Newman, C. Keuker, Judith Katzy, A. Valkrov, J. Spiekermann, H. Spitzer, M. Fleischer, R. Prosi, V. Schrder, A. Gruber, Roland Bernet, J. Formnek, Horst Oberlack, I. Herynek, A. Schning, R. Maraček, J-P. Meyer, B. Gonzalez-Pineiro, Hannes Jung, Alexander Zhokin, V I. Shekelyan, K. Wacker, R. Steinberg, W. von Schlippe, R. Starosta, T. Merz, M. Ibbotson, P. Baranov, S. Mani, Tancredi Carli, Stephen Burke, Yu. Solovev, F. Brasse, F W. Bsser, H. Shooshtari, Grzegorz Nowak, J. Martens, E. Prez, F. Kole, U. Seehausen, M. Korn, J. Riedlberger, Dusan Bruncko, F. Ferrarotto, G. Flgge, R. L. Lander, U. Krner-Marquis, H. Genzel, C. Jacobsson, Michael Seidel, J. Khne, F. Sefkow, Benno List, F. Charles, Barbara Clerbaux, Ch. Ley, Peter Schleper, H. Kster, D. Lke, J. Ferencei, P. Van Esch, J. Garvey, A. M. Fomenko, P. Murn, R. Taylor, J. Turnau, P. Trul, E. Elsen, J. Marks, A. Rostovtsev, J. P. Sutton, Claus Kleinwort, W.D. Dau, F. Zomer, J. B. Dainton, G. Weber, M. Steenbock, U. Straumann, B. Andrieu, M. J. Burton, A. Wagener, U. Kathage, E. Gabathuler, Marc Besancon, C. Vallée, H. K. Nguyen, A.S. Belousov, I. V. Gorelov, J. Zcek, Ch. Coutures, W. Struczinski, Stephen Maxfield, J. Stiewe, J. Kurzhfer, A. B. Clegg, R. Rylko, Andrew Mehta, N. Gogitidze, R. D. Appuhn, Yves Sirois, M. Vecko, J. Lipinski, J. Ebert, G. Franke, H. Hufnagel, C. Gruber, S. Kermiche, P. Goritchev, D. Dllmann, C.D. Hilton, Mikhail Danilov, R. Roosen, J. Duboc, D. Neyret, T. Khler, J. Martyniak, B. Fominykh, Eckhart Fretwurst, S. Reinshagen, C. Kiesling, M. Arpagaus, K. Rybicki, Wolfram Erdmann, D. Feeken, W. Hildesheim, M. Colombo, S. Willard, Murrough Landon, A. E. Wright, M. Winde, P. Uelkes, L. Johnson, H. Itterbeck, P. Van Mechelen, H. Erlichmann, O. Hamon, K. Daum, G. Knies, S. Schiek, J. Haack, I. O. Skillicorn, H. B. Dreis, M. Nyberg-Werther, T. R. Ebert, A. Fedotov, A. De Roeck, H. Henschel, H. Bergstein, S. D. Kolya, Th. Naumann, H. Duhm, E. Deffur, P. Kostka, M. David, M. Flieser, J. Stier, Y. Vazdik, L.R. West, David Milstead, S. Prell, Jan Hladky, I. Shevyakov, C. Schmidt, P. Di Nezza, Peter Robmann, L. Del Buono, F. Botterweck, D. Krcker, P. E. Reimer, 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), and 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)
Subjects: Physics, Particle physics, Photon, Luminosity (scattering theory), Physics and Astronomy (miscellaneous), Proton, 010308 nuclear & particles physics, Compton scattering, Bremsstrahlung, Elementary particle, HERA, 01 natural sciences, 7. Clean energy, law.invention, Nuclear physics, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, Collider, Engineering (miscellaneous)
Abstract: We present an experimental study of theep→eγ+p andep→eγ+X processes using data recorded by the H1 detector in 1993 at the electron-proton collider HERA. These processes are employed to measure the luminosity with an accuracy of 4.5 %. A subsample of theep→eγ+X events in which the hard photon is detected at angles θγ′ ≤ 0.45 mrad with respect to the incident electron direction is used to verify experimentally the size of radiative corrections to theep→eX inclusive cross section and to investigate the structure of the proton in theQ2 domain down to 2 GeV2, lower than previously attained at HERA.

45. A SEARCH FOR LEPTOQUARKS AND SQUARKS AT HERA

Author: H. Bergstein, Th. Naumann, Daniel Pitzl, Wolfram Erdmann, H. Duhm, S. K. Kotelnikov, N. Magnussen, L. Hajduk, E. Gabathuler, N. Sahlmann, E. Deffur, P. Kostka, E. Schuhmann, T. Ahmed, J. Duboc, B. Stella, E. Malinovski, M. Kuhlen, G. Grindhammer, P. Biddulph, M. David, Didier Lacour, G. Müller, Armen Vartapetian, M. Colombo, P. Baranov, M. Fleischer, M. A. Jabiol, J. Riedlberger, D. Feeken, G. Pope, Peter Schleper, Carl R. Brune, M. Barth, Marc Besancon, A.S. Belousov, A. Lindner, J. Janoth, Sergey Rusakov, P. Truöl, Murrough Landon, A. E. Wright, Volker Blobel, R. Eichler, C. Keuker, J. Stier, K. C. Hoeger, D. Lüke, J. Marks, E. Wünsch, Y. Vazdik, Dave Sankey, U. Bassler, G. D. Patel, H. Meyer, L.R. West, R. J. Ellison, J. Martens, F. Kole, David Schmidt, H. Itterbeck, P. Van Mechelen, S. Eichenberger, V. Riech, R. Maraček, W. von Schlippe, K. Gabathuler, A. Buniatian, D. Wegener, R. Starosta, J. V. Morris, G. Schmidt, M. Forbush, A. Schwind, A. Lebedev, S. Egli, M. Rietz, D. Haidt, G. Heinzelmann, F. Charles, H. Küster, T. Merz, W.J. Haynes, P. Ribarics, R. Felst, U. Seehausen, F. Sefkow, M. Nyberg-Werther, T. Köhler, M. W. Krasny, Peter Robmann, M. F. Hess, S. Tapprogge, Mikhail Danilov, R. Roosen, T. R. Ebert, S. Reinshagen, J. Martyniak, W.D. Dau, J. B. Dainton, K. Stephens, E. Peppel, I. Sheviakov, A. Fedotov, Günter Flügge, T. P. Yiou, J. Turnau, C. Kiesling, U. Krüger, B. Fominykh, Emmanuelle Perez, V. Efremenko, S. Mikocki, M. Steenbock, A. De Roeck, A. J. Campbell, Eckhart Fretwurst, M. Flieser, H. Krehbiel, Richard E. Taylor, S. Dagoret, P. Goritchev, T. Kurča, L. N. Shtarkov, J. Feltesse, G. Buschhorn, B. Andrieu, O. Dünger, K. Gamerdinger, J. Ferencei, V I. Shekelyan, A. Panitch, Frank Raupach, G. Bertrand-Coremans, F. Botterweck, D. Neyret, K. Wacker, K. Rüter, C. Niebuhr, S. M. Robertson, S. Willard, R. Steinberg, T. Mavroidis, K. Rosenbauer, I. Tichomirov, D. Goldner, L. Criegee, Y. Soloviev, J. M. Foster, N. Wulff, R. Buchholz, David Milstead, P. A. Smirnov, J. Formánek, M. Savitsky, Wolfgang Lange, C. A. Meyer, J. Žáček, J. Garvey, M. Gebauer, H. E. Roloff, P. Kasselmann, B. Gonzalez-Pineiro, H. Hufnagel, G. Thompson, Dusan Bruncko, K. Zuber, M. Arpagaus, A. Gruber, M. Winde, B. Naroska, J. Gayler, P. Uelkes, Martin Erdmann, F. Ferrarotto, D. Düllmann, A. M. Fomenko, C.D. Hilton, J.G. Contreras, L. Johnson, U. Obrock, Daniel Johnson, H. Genzel, J. Cvach, H. Henschel, Leif J. Jönsson, H. J. Behrend, J.C. Bizot, M. Goldberg, F. Niebergall, L. Goerlich, E. Evrard, E. Sanchez, T. Greenshaw, R. L. Lander, H. Lohmander, K. Daum, J.P. Phillips, S. Mani, G. Villet, Pierre Marage, Stephen Maxfield, B. Delcourt, J. Stiewe, U. Stösslein, Vincent Hedberg, H. P. Beck, Stephen Burke, G. Knies, Rosario Martín, A. B. Clegg, R. Rylko, C. Leverenz, Andrew Mehta, S. Schiek, R. Marshall, N. Gogitidze, Dirk Krücker, O. Hamon, J. Haack, P. Van Esch, I. O. Skillicorn, H. B. Dreis, Zhen Zhang, A. Courau, A. Rostovtsev, R. Bernet, S. Kermiche, H. Shooshtari, R. Nisius, J. R. Smith, R. Herma, E. Eisenhandler, J. P. Sutton, Claus Kleinwort, J. Ebert, S. Levonian, M. Wagener, Ch. Ley, A. Walther, A. Usik, K. Flamm, A. Wegner, A. Gellrich, W. Zimmermann, P. I. P. Kalmus, J. Baehr, E. Panaro, J. Kurzhöfer, A. Wagener, J. D. Dowell, F. Lamarche, M. Jaffre, J. E. Olsson, V. Nagovizin, A. Braemer, R. Kaschowitz, W. Bartel, W. Hildesheim, J. P. Kubenka, Roland Horisberger, H. K. Nguyen, I. V. Gorelov, K. Müller, A. Valkárová, R. Grässler, Ch. Coutures, W. Struczinski, H. U. Martyn, Matthias Klein, F. W. Büsser, Hermann Kolanoski, D. Clarke, S. Riess, W. Braunschweig, G. W. Noyes, H. Spitzer, John A Coughlan, R. Sell, Horst Oberlack, I. R. Kenyon, S. Kazarian, K. Johannsen, U. Siewert, F. Zomer, A. M. Goodall, Christophe Royon, M. Zimmer, L. Del Buono, Vincent Boudry, P. Hill, Jean-Francois Laporte, V. Andreev, J. Bán, Winston Ko, C. Pascaud, Guenter Eckerlin, H. Ehrlichmann, André Schöning, Yves Sirois, C. Vallée, R. D. Appuhn, J. Lipinski, G. Franke, U. Krüner-Marquis, T. Jansen, G. Rädel, M. Hampel, B. Kuznik, Ph. Huet, Steve McMahon, Ch. Pichler, G. Lindström, C. Gruber, Paul Newman, Grzegorz Nowak, S. Aid, M. Korn, C. Jacobsson, D. Kant, G. Weber, U. Straumann, Kerstin Borras, A. Semenov, F. Linsel, J. Heatherington, M. Vecko, D. Newton, U. Kathage, D. Mercer, F. Brasse, V. Brisson, S. Masson, K. H. Hiller, M. Hapke, R. Nahnhauer, R. C. W. Henderson, P. Lanius, E. Barrelet, David Cussans, Markus Seidel, V. Tchernyshov, E. A. De Wolf, Ch. Berger, Karlheinz Meier, L. Büngener, V. Korbel, J. Tutas, J. D. Burger, I. Herynek, Jean-Arcady Meyer, Benno List, R. Gerhards, R. Prosi, G. Cozzika, F. Eisele, Stefan Valkar, G. Siegmon, Hannes Jung, R. Beyer, F. Moreau, J. Hladký, A. Jacholkowska, S. D. Kolya, P. Loch, P. E. Reimer, E. M. Hanlon, G. G. Winter, P. Verrecchia, V. Schröder, P. Steffen, H. H. Kaufmann, Eckhard Elsen, Peter Schacht, G. C. Lopez, D. Zarbock, H. P. Wellisch, Max Weber, Gregorio Bernardi, T. Carli, Anton Babaev, C. Thiebaux, I. W. Walker, J. Strachota, K. Rybicki, Christoph Grab, B. Schwab, Pavel Murin, H. Grässler, M. Ibbotson, Laurent Favart, C. Dollfus, F. Rouse, M. Höppner, S. Prell, Ulrich Goerlach, C. Schmidt, and P. Di Nezza
Subjects: Physics, Quark, Particle physics, Physics and Astronomy (miscellaneous), High Energy Physics::Phenomenology, Scalar (mathematics), Elementary particle, HERA, Standard Model, Nuclear physics, Particle decay, Grand Unified Theory, High Energy Physics::Experiment, Invariant mass, Engineering (miscellaneous)
Abstract: A search in the H1 experiment at HERA for scalar and vector leptoquarks, leptogluons and squarks coupling to first generation fermions is presented in a data sample corresponding to an integrated luminosity of 425 nb−1. For masses ranging up to ∼275 GeV, no significant evidence for the direct production of such particles is found in various possible decay channels. At high masses and beyond the centre of mass energy of 296 GeV a contact interaction analysis is used to further constrain the couplings and masses of new vector leptoquarks and to set lower limits on compositeness scales.

46. PRODUCTION OF F2(1270) AND F0(975) MESONS BY PHOTONS AND HADRONS OF ENERGY 65-175 GEV

Author: D. Newton, J. V. Morris, J. Kingler, G. Hallewell, F. Fiedler, J. A. G. Morris, E. Paul, P. Sharp, B. Dickinson, C. Gapp, R. C. W. Henderson, A. S. Weigend, P. S. Flower, P. J. Ottewell, J. M. Foster, R. J. Apsimon, D. Reid, C. Paterson, J. Eades, M. Ibbotson, N. H. Brook, R. E. Hughes-Jones, H. Rotscheidt, M. Baake, George Lafferty, L. S. Bagdasarian, R. Oedingen, S. Söldner-Rembold, J. Waterhouse, R. J. Ellison, S. Danaher, R. P. Hofmann, T. J. Brodbeck, Hugh McCann, A. B. Clegg, S. D. Kolya, N. R. Keemer, A. G. Oganesian, P. Coyle, L. F. Thompson, G. W. Wilson, A. O'Connor, D. Joseph, M. Davenport, M. T. Hickman, F. Gebert, Neil A. Thacker, W. Galbraith, S. Danagulian, R. J. Thompson, A. T. Doyle, Dario Barberis, C. McManus, P. I. Galumian, T. Charity, B. Diekmann, G. Körsgen, S. Holzkamp, K. C. Hoeger, A. Holzkamp, H. P. Jacob, M. Atkinson, D. Mercer, K. Heinloth, R. McClatchey, and A. Donnachie
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, Hadron, Elementary particle, Quarkonium, Nuclear physics, Particle decay, Pair production, Pion, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Boson
Abstract: Measurements are reported of inclusivef 2(1270) andf 0(975) production in γp, π± p andK ± p collisions at photon beam energies of 65 to 175 GeV and hadron beam energies of 80 and 140 GeV. Thef 2 andf 0 mesons were found at masses of 1.250 GeV and 0.961 GeV respectively. Inclusivef 2 production at lowx F was found to have a similarp T dependence for each beam type, whereas an additional pion-exchange contribution was found for production by pions at highx F. Cross sections are compared with those for ρ0 production and give no indication of a non-q $$\bar q$$ component in eitherf-meson state.

47. 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.

48. Novel sst(4)-selective somatostatin (SRIF) agonists. 1. Lead identification using a betide scan.

Author: Rivier J, Erchegyi J, Hoeger C, Miller C, Low W, Wenger S, Waser B, Schaer JC, and Reubi JC
Subjects: Animals, Autoradiography, Binding, Competitive, Cell Line, Cricetinae, Cyclic AMP biosynthesis, Humans, Ligands, Membrane Proteins, Oligopeptides chemistry, Oligopeptides pharmacology, Peptides, Cyclic chemistry, Peptides, Cyclic pharmacology, Radioligand Assay, Somatostatin chemistry, Somatostatin pharmacology, Stereoisomerism, Structure-Activity Relationship, Oligopeptides chemical synthesis, Peptides, Cyclic chemical synthesis, Receptors, Somatostatin agonists, Receptors, Somatostatin chemistry, Somatostatin analogs & derivatives, Somatostatin chemical synthesis
Abstract: Hypothesizing that structural constraints in somatostatin (SRIF) analogues may result in receptor selectivity, and aiming to characterize the bioactive conformation of somatostatin at each of its five receptors, we carried out an N(beta)-methylated aminoglycine (Agl) scan of the octapeptide H-c[Cys(3)-Phe(6)-Phe(7)-dTrp(8)-Lys(9)-Thr(10)-Phe(11)-Cys(14)]-OH (SRIF numbering) (ODT-8) that is potent at all SRIF receptor subtypes (sst's) but sst(1). We found that H-c[Cys-LAgl(N(beta)Me,benzoyl)-Phe-DTrp-Lys-Thr-Phe-Cys]-OH (4), H-c[Cys-Phe-LAgl(N(beta)Me,benzoyl)-Trp-Lys-Thr-Phe-Cys]-OH (6), H-c[Cys-Phe-LAgl(N(beta)Me,benzoyl)-dTrp-Lys-Thr-Phe-Cys]-OH (8), and H-c[DCys-Phe-LAgl(N(beta)Me,benzoyl)-DTrp-Lys-Thr-Phe-Cys]-OH (10) had high affinity (IC(50) = 14.3, 5.4, 5.2, and 3.4 nM, respectively) and selectivity for sst(4) (>50-fold over the other receptors). The l-configuration at positions 7 and 8 (l(7), l(8)) yields greater sst(4) selectivity than the l(7), d(8) configuration (6 versus 8). Peptides with the d(7), l(8) (7) and d(7), d(8) (9) configurations are significantly less potent at all receptors. H-c[Cys-Phe-Phe-DTrp-LAgl(betaAla)-Thr-Phe-Cys]-OH (16), H-c[Cys-Phe-Phe-DTrp-DAgl(betaAla)-Thr-Phe-Cys]-OH (17), and their N(beta)Me derivatives at position 9 (18, 19) were essentially inactive. Potent but less sst(4)-selective were members of the Agl-scan at positions 10, H-c[Cys-Phe-Phe-dTrp-Lys-lAgl(N(beta)Me,HO-Ac)-Phe-Cys]-OH (20, IC(50) = 6.5 nM), and 11, H-c[Cys-Phe-Phe-DTrp-Lys-Thr-LAgl(N(beta)Me,benzoyl)-Cys]-OH (22, IC(50) = 6.9 nM), while the d-configuration at positions 10 (21) and 11 (23) led to reduced affinity. One of our best analogues, 8, is an agonist when tested for its ability to inhibit forskolin-stimulated cAMP accumulation in sst(4)-transfected CCL39 cells (EC(50) = 1.01 nM). All Agl-containing analogues were first synthesized using unresolved Fmoc-Agl(N(beta)Me,Boc)-OH, and the diastereomers were separated using HPLC. Chiral assignment at the Agl-containing residue was subsequently done using enzymatic degradation and by de novo synthesis in the cases of H-c[Cys-Phe-DAgl(N(beta)Me,benzoyl)-DTrp-Lys-Thr-Phe-Cys]-OH (9) and H-c[DCys-Phe-DAgl(N(beta)Me,benzoyl)-DTrp-Lys-Thr-Phe-Cys]-OH (11), starting with the papain-resolved Fmoc-DAgl(Boc). These results suggested that the orientation of side chains at position 6, 7, or 11 with respect to the side chains of residues 8 and 9 may be independently responsible for sst(4) selectivity.
Published: 2003
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49. Potent somatostatin undecapeptide agonists selective for somatostatin receptor 1 (sst1).

Author: Rivier JE, Hoeger C, Erchegyi J, Gulyas J, DeBoard R, Craig AG, Koerber SC, Wenger S, Waser B, Schaer JC, and Reubi JC
Subjects: Adenylyl Cyclases metabolism, Animals, Autoradiography, CHO Cells, Cricetinae, Female, Humans, In Situ Hybridization, Leiomyoma metabolism, Molecular Conformation, Protein Binding, Recombinant Proteins metabolism, Somatostatin chemistry, Somatostatin pharmacology, Structure-Activity Relationship, Tumor Cells, Cultured, Uterine Neoplasms metabolism, Receptors, Somatostatin agonists, Somatostatin agonists, Somatostatin analogs & derivatives, Somatostatin chemical synthesis
Abstract: A family of analogues of des-AA(1,2,5)-[DTrp(8)/D2Nal(8)]-SRIF that contain a 4-(N-isopropyl)-aminomethylphenylalanine (IAmp) at position 9 was identified that has high affinity and selectivity for human somatostatin receptor subtype 1 (sst1). The binding affinities of des-AA(1,2,5)-[DTrp(8),IAmp(9)]-SRIF (c[H-Cys-Lys-Phe-Phe-DTrp-IAmp-Thr-Phe-Thr-Ser-Cys-OH], CH-275) (7), des-AA(1,5)-[Tyr(2),DTrp(8),IAmp(9)]-SRIF (CH-288) (16), des-AA(1,2,5)-[Tyr(7),DTrp(8),IAmp(9)]-SRIF (23), and des-AA(1,2,5)-[DTrp(8),IAmp(9),Tyr(11)]-SRIF (25) are about (1)/(7), (1)/(4), (1)/(125), and (1)/(4) that of SRIF-28 (1) to sst1, respectively, about (1)/(65), (1)/(130), <(1)/(1000), and <(1)/(150) that of 1 to sst3, respectively, and about or less than (1)/(1000) that of 1 to the other three human SRIF receptor subtypes. A substitution of DTrp(8) by D2Nal(8) in 7 to yield des-AA(1,2,5)-[D2Nal(8),IAmp(9)]-SRIF (13) and in 16 to yield des-AA(1,5)-[Tyr(2),D2Nal(8),IAmp(9)]-SRIF (17) was intended to increase chemical stability, selectivity, and affinity and resulted in two analogues that were less potent or equipotent with similar selectivity, respectively. Carbamoylation of the N-terminus as in des-AA(1,2,5)-[DTrp(8),IAmp(9),Tyr(11)]-Cbm-SRIF (27) increased affinity slightly as well as improved selectivity. Monoiodination of 25 to yield 26 and of 27 to yield 28 resulted in an additional 4-fold increase in affinity at sst1. Desamination of the N-terminus of 17 to yield 18, on the other hand, resulted in significant loss of affinity. Attempts at reducing the size of the ring with maintenance of selectivity failed in that des-AA(1,4,5,13)-[Tyr(2),DTrp(8),IAmp(9)]-SRIF (33) and des-AA(1,4,5,6,12,13)-[Tyr(2),DTrp(8),IAmp(9)]-SRIF (34) progressively lost affinity for all receptors. Both des-AA(1,2,5)-[DTrp(8),IAmp(9),Tyr(11)]-Cbm-SRIF (27) and des-AA(1,2,5)-[DCys(3),DTrp(8),IAmp(9),Tyr(11)]-Cbm-SRIF (29) show agonistic activity in a cAMP assay; therefore, the structural basis for the agonist property of this family of analogues is not contingent upon the chirality of the Cys residue at position 3 as shown to be the case in 18-membered ring SRIF octapeptides. None of the high affinity structures described here showed receptor antagonism. We have prepared the radiolabeled des-AA(1,2,5)-[DTrp(8),IAmp(9),(125)ITyr(11)]-SRIF ((125)I-25) and des-AA(1,2,5)-[DTrp(8),IAmp(9), (125)ITyr(11)]-Cbm-SRIF ((125)I-27), used them as in vitro tracers, and found them to be superior to des-AA(1,5)-[(125)ITyr(2),DTrp(8),IAmp(9)]-SRIF ((125)I-16) for the detection of sst1 tumors in receptor autoradiography studies.
Published: 2001
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50. SST3-selective potent peptidic somatostatin receptor antagonists.

Author: Reubi JC, Schaer JC, Wenger S, Hoeger C, Erchegyi J, Waser B, and Rivier J
Subjects: Adenylyl Cyclases metabolism, Animals, CHO Cells, Cricetinae, Cyclic AMP biosynthesis, Enzyme Activation, Humans, Type C Phospholipases metabolism, Receptors, Somatostatin antagonists & inhibitors
Abstract: A family of octapeptide derivatives of somatostatin cyclized via a disulfide bridge (des-AA(1,2,4,5,12,13)[d-2Nal(8)]-somatostatin-14, ODN-8) was identified that has high affinity and selectivity for the human sst(3) somatostatin receptor subtype transfected in CCL39 cells. The binding affinity of carbamoyl-des-AA(1,2,4,5,12, 13)[d-Cys(3),Tyr(7),d-Agl(8)(Me,2-naphthoyl)]-somatostatin-14 (sst(3)-ODN-8) is equal to that of somatostatin-28 for sst(3) and less than one-thousandth that for the other four somatostatin receptor subtypes. Compound sst(3)-ODN-8 potently reverses the somatostatin-28-induced inhibition of forskolin-stimulated cAMP production (pK(B) = 9.07) and reverses the somatostatin-28-induced stimulation of phospholipase C activity (pK(i) = 9.22) in sst(3)-transfected CCL39 cells. [(125)I-Tyr(7)]sst(3)-ODN-8 selectively labels sst(3)-expressing cells with subnanomolar binding affinity (K(D) = 0.27 nM). With the use of this radioligand, sst(3)-expressing human tumors, particularly inactive pituitary adenomas, can be identified with receptor autoradiography; moreover, areas of the human lymphoreticular system express sst(3) binding sites selectively displaced by nanomolar concentrations of sst(3)-ODN-8. Based on the structure-activity relationship of selected analogs substituted at positions 3, 7, and 8, we hypothesize that the basis for sst(3) selectivity, high affinity, and possibly antagonism resides in the ring size of the analog and the unique conformational and structural character of the N-methylated amino-2-naphthoyl side chain of aminoglycine at position 8 and not in the Tyr(7) substitution or in the d-configuration at position 3. The family of labeled and unlabeled sst(3)-ODN-8 analogs represents highly innovative, potent, and specific sst(3)-selective antagonist tools for the study of sst(3)-mediated physiological and pathophysiological conditions that may suggest novel clinical applications.
Published: 2000
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