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1. A coupled thermo-hygro-chemo-mechanical model for the simulation of spalling of concrete subjected to fire loading

Author

Zeiml M., Zhang Y., Pichler C., Lackner R., and Mang H.A.

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

The presented research work contributes to the realistic simulation of the stress state within fire-loaded concrete in order to attain insight into the development and occurrence of the critical state right before and during the event of spalling. A coupled thermo-hygro-chemo-mechanical code simulating the stress state as a consequence of both thermo-hygral and thermo-mechanical processes is presented together with an embedded strong-discontinuity model which is capable of capturing and tracking the propagation of a crack evolving in concrete as a quasi-brittle material. Combination of the two mentioned models is currently under way. With the resulting coupled model, it will be possible to take into account all major couplings, allowing to realistically simulate the spalling process.

Published
2013
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6. Example of the Refractory Corrosion Test Work with Nickel Matte

Author

Gregurek, D., Ressler, A., Spanring, A., Pichler, C., Jiang, Tao, editor, Hwang, Jiann-Yang, editor, Alvear F., Gerardo R. F., editor, Yücel, Onuralp, editor, Mao, Xinping, editor, Sohn, Hong Yong, editor, Ma, Naiyang, editor, Mackey, Phillip J., editor, and Battle, Thomas P., editor

Published
2016
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16. Icatibant, a new bradykinin-receptor antagonist, in hereditary angioedema

Author

Cicardi, M., Banerji, A., Bracho, F., Malbran, A., Rosenkranz, B., Riedi, M., Bork, K., Lumry, W., Aberer, W., Bier, H., Bas, M., Greve, J., Hoffmann, T.K., Farkas, H., Reshef, A., Ritchie, B., Yang, W., Grabbe, J., Kivity, S., Kreuz, W., Levy, R.J., Luger, T., Obtulowicz, K., Schmid-Grendelmeier, P., Bull, C., Sitkauskiene, B., Smith, W.B., Toubi, E., Werner, S., Anne, S., Bjorkander, J., Bouillet, L., Cillari, E., Hurewitz, D., Jacobson, K.W., Katelaris. C.H., Maurer, M., Merk, H., Bernstein, J.A., Feighery, C., Floccard, B., Gleich, G., Hebert, J., Kaatz, M.Keith, P., Kirkpatrick, C.H., Langton, D., Martin, L., Pichler, C., Resnick, D., Wombolt, D., Romero, D.S. Fernandez, Zanichelli, A.Arcoleo, F., Knolle, J., Kravec, I., Dong, L., Zimmermann, J., Rosen. K., and Fan, W.-T

Subjects
Tranexamic acid -- Health aspects, Tranexamic acid -- Comparative analysis, Angioneurotic edema -- Genetic aspects, Angioneurotic edema -- Drug therapy, Bradykinin -- Health aspects, Bradykinin -- Comparative analysis
Abstract

A study was conducted to evaluate the efficacy and safety of icatibant, a new bradykinin-receptor antagonist in the treatment of hereditary angioedema. Results indicated that in the case of such patients, icatibant was found to be quite effective and having positive outcomes as compared to placebo or tranexamic acid.

Published
2010

19. Demonstration of a thermodynamic Waelz process model developed at the Chair of nonferrous metallurgy.

Author

Brandner U., Antrekowitsch J., Leuchtenmuller M., Pichler C., Ruh A., Wagner C., Zajac S., Brandner U., Antrekowitsch J., Leuchtenmuller M., Pichler C., Ruh A., Wagner C., and Zajac S.

Abstract

The development of a thermodynamic model to simulate the Waelz process using SimuSage software for flowsheet generation is presented. The thermodynamic model is based on the following input parameters: amount and chemical composition of input material; air volume intake; and boundary conditions regarding heat transfer. The model provides a prediction of chemical composition of generated slag and off gas transporting Waelz oxide, and profiles of slag composition, solid-phase temperature, and gas-phase temperature along kiln length. The modelling allows improvement of process control and optimisation of refractory linings in elevated-temperature facilities., The development of a thermodynamic model to simulate the Waelz process using SimuSage software for flowsheet generation is presented. The thermodynamic model is based on the following input parameters: amount and chemical composition of input material; air volume intake; and boundary conditions regarding heat transfer. The model provides a prediction of chemical composition of generated slag and off gas transporting Waelz oxide, and profiles of slag composition, solid-phase temperature, and gas-phase temperature along kiln length. The modelling allows improvement of process control and optimisation of refractory linings in elevated-temperature facilities.

Published
2020

20. Disability & Diversity Studies as a professional basis for diversity-aware education and training in medicine

Author

Dungs, S, Pichler, C, Reiche, R, Dungs, S, Pichler, C, and Reiche, R

Abstract

The "Disability and Diversity Studies" (DDS) are research fields which, similar to social work, deal with social inclusion and exclusion processes. Dimensions of disability and diversity can lead to disadvantages and inequalities in the individual life and social coexistence of people. The DDS examine these inequalities and identify intersectional relationships between diversity categories. The concept of intersectionality opens up the view of the restriction of diversities, which can lead to the intensification of inequalities and multiple discriminations: e. g., in the case of being a woman and member of an ethnic minority. The starting point is therefore not the difference category per se, but the intersection of several categories . This knowledge of categorizing classification and exclusion in their intersectionality is fundamental for the dissolution of social, societal, political and economic inequality. The DDS bachelor's program at the Carinthia University of Applied Sciences, which combines Disability and Diversity Studies, focuses on these research areas and develops practical solutions.In medical education and training, too, it is essential that teachers and students, but also patients, recognise the complex interrelationships of divergences in medical practice and the resulting stigma that must be removed. The DDS can serve as a basis for taking these interrelationships into account, for incorporating creative approaches to solutions and a diversity-sensitive attitude into the doctor-patient relationship and medical treatment. For example, the first and so far only World Report on Disability from 2011 noted a still existing negative infiltration of doctor-patient-interactions through stigmatization of persons with disabilities and deviations. Misunderstandings, lack of knowledge and wrong presettings can endanger the treatment .In order to create the framework conditions for an appropriate consideration of diversity and disability in the program, it is, Die "Disability & Diversity Studies" (DDS) sind Forschungsrichtungen, die sich, ähnlich der Sozialen Arbeit, mit gesellschaftlichen Ein- und Ausschließungsprozessen befassen. Dimensionen von Behinderung und Vielfalt können im individuellen Leben und gesellschaftlichen Zusammenleben von Menschen zu Benachteiligungen und Ungleichheiten führen. Die DDS untersuchen diese Ungleichheiten und identifizieren intersektionale Zusammenhänge zwischen Diversitätskategorien. Das Konzept der Intersektionalität eröffnet die Sicht auf die Ver-schränkung von Diversitäten, was die Verstärkung von Ungleichheiten und Mehrfachdiskriminierungen zur Folge haben kann: bspw. als Frau und als ethnische Minderheit. Der Ausgangspunkt ist demnach nicht die Differenzkategorie an sich, sondern der Kreuzungspunkt mehrerer Kategorien . Dieses Wissen über kategorisierende(n) Einordnung und Ausschluss in ihrer Intersektionalität ist grundlegend für das Auflösen von sozialer, gesellschaftlicher, politischer und wirtschaftlicher Ungleichheit. Der Bachelorstudiengang DDS der Fachhochschule Kärnten, in dem die Disability und die Diversity Studies miteinander verknüpft wurden, zentriert sich um diese Forschungsrichtungen und erarbeitet daraus praktische Lösungsansätze.Auch in der medizinischen Aus- und Weiterbildung ist es grundlegend, dass Lehrende und Lernende, aber auch Patient*innen erkennen, welche komplexen Zusammenhänge von Diversitäten in der medizinischen Praxis wirksam sind und welche daraus resultierenden Stigmata es abzutragen gilt. Die DDS können als Basis dienen, um diese Zusammenhänge zu berücksichtigen, kreative Lösungsansätze und eine diversitätssensible Haltung in das Ärzt*innen-Patient*innen-Verhältnis und die medizinische Behandlung einfließen zu lassen. So konstatierte der erste und bislang auch einzige Weltbericht über Behinderung aus dem Jahr 2011 eine noch bestehende negative Infiltration der Ärzt*innen und Patent*innen-Interaktionen durch Stigmatisierung von Personen mit Behinderun

Published
2020

27. L’expression de la réciprocité dans trois langues romanes

Author

Mayerthaler, E, Pichler, C E, Winkler, C, Mayerthaler, E ( E ), Pichler, C E ( C E ), Winkler, C ( C ), Stark, E, Mayerthaler, E, Pichler, C E, Winkler, C, Mayerthaler, E ( E ), Pichler, C E ( C E ), Winkler, C ( C ), and Stark, E

Published
2011

28. Heat treatment of desulphurisation slags from the iron and steel industry.

Author

Pichler C., Antrekowitsch J., Pilz K., Pichler C., Antrekowitsch J., and Pilz K.

Abstract

Concepts for desulphurising raw iron are surveyed and the use of calcium carbide and magnesium, calcium oxide, soda (Na2CO3), and manganese are outlined along with alternative possibilities such as Mg-filled wire or high-bassicity slag. The three main product streams are evaluated and a recycling concept developed for desulphurisation slags containing 47.48 wt% Fe and 4.13% S (fine Fe, smaller than 10 mm) or 55.50 wt% Fe and 2.82% S (Fe larger than 10 mm), along with c.1% Al, 2% Si, 3% Mg and 10-11% Ca, which were characterised by IR spectroscopy and EDX analysis, then roasted in a top-blown rotating tromel converter with burnt liime at 1 450 degrees C to bring the S content down to 0.008%. A pilot study using a short trommel furnace achieved S contents of 0.001-0.004 wt%. The resulting flowsheet produces S-free iron for sintering or smelting and SO2-rich off-gas for sulphuric acid., Concepts for desulphurising raw iron are surveyed and the use of calcium carbide and magnesium, calcium oxide, soda (Na2CO3), and manganese are outlined along with alternative possibilities such as Mg-filled wire or high-bassicity slag. The three main product streams are evaluated and a recycling concept developed for desulphurisation slags containing 47.48 wt% Fe and 4.13% S (fine Fe, smaller than 10 mm) or 55.50 wt% Fe and 2.82% S (Fe larger than 10 mm), along with c.1% Al, 2% Si, 3% Mg and 10-11% Ca, which were characterised by IR spectroscopy and EDX analysis, then roasted in a top-blown rotating tromel converter with burnt liime at 1 450 degrees C to bring the S content down to 0.008%. A pilot study using a short trommel furnace achieved S contents of 0.001-0.004 wt%. The resulting flowsheet produces S-free iron for sintering or smelting and SO2-rich off-gas for sulphuric acid.

Published
2017

29. Analysis of Important Chemical Pathways of n-Heptane Combustion in Small Skeletal Mechanisms

Author

Pichler, C. and Nilsson, E. J. K.

Abstract

Reduced mechanisms for n-heptane combustion have been constructed using the novel ACR method, with the complex mechanism from CRECK, including low-temperature chemistry, as a starting point. Tailored mechanisms for each part of the combustion process, ignition, flame propagation, and extinction, were created to identify differences and common trends in mechanism composition. The simulations were carried out for n-heptane/air mixtures for zero-dimensional homogenous reactors, one-dimensional freely propagating flames, and counter-flow diffusion flames at temperature, pressure, and equivalence ratio conditions relevant to engine combustion. The smallest mechanism, 28 species, only targets laminar burning velocity, while the largest single-property mechanism is for ignition over a wide temperature range, with 48 species. A compound mechanism covering all conditions consists of 65 species, this mechanism includes reaction paths describing important subchemistries like the peroxyl radical chemistry governing low-temperature ignition and the C/H/O chemistry of importance to flame propagation. Compared to the CRECK mechanism, all the reduced mechanisms have fewer than 2% of the number of reactions.

Published
2020
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30. EDIminer : a toolset for process mining from EDI messages

Author

Engel, R., Jagadeesh Chandra Bose, R.P., Pichler, C., Zapletal, M., Werthner, H., Deneckère, R., Proper, H.A., and Process Science

Abstract

Organizations exchange data electronically to perform business transactions using Electronic Data Interchange (EDI). In order to gain insights on such transactions, approaches for inter-organizational business process mining based on the observation of exchanged EDI messages have been recently proposed. In recent approaches, however, only meta-information about the exchanged messages, such as message type, interchange time and sender/receiver information, has been used as data base for generating event logs. This neglects the opportunity of using business information from observed EDI messages to arrive at more detailed event logs, which in turn enable mining of detailed process models and fine-grained process performance analyses. In addressing this shortcoming, we present EDIminer, a toolset that allows for (i) enhanced visualization of contents of EDI messages, (ii) automatic and/or user-driven definition of mappings of EDI artifacts to events, (iii) generation of events from such mappings, (iv) semi-automatic correlation of events to process instances and (v) generation of industry-standard XES event logs for subsequent application of conventional process mining techniques. We demonstrate the utility of EDIminer by means of an exemplary EDI-based purchase order process based on real-world data.

Published
2013

31. Mining inter-organizational business process models from EDI messages : a case study from the automotive sector

Author

Engel, R., Aalst, van der, W.M.P., Zapletal, M., Pichler, C., Werthner, H., Ralyté, J., Franch, X., Brinkkemper, S., Wrycza, S., and Process Science

Subjects
World Wide Web, Business process discovery, Process management, Computer science, EDIFACT, Process (engineering), Event (computing), Business process, Process mining, Business process modeling, Electronic data interchange
Abstract

Traditional standards for Electronic Data Interchange (EDI), such as EDIFACT and ANSI X12, have been employed in Business-to-Business (B2B) e-commerce for decades. Due to their wide industry coverage and long-standing establishment, they will presumably continue to play an important role for some time. EDI systems are typically not "process-aware", i.e., messages are standardized but processes simply "emerge". However, to improve performance and to enhance the control, it is important to understand and analyze the "real" processes supported by these systems. In the case study presented in this paper we uncover the inter-organizational business processes of an automotive supplier company by analyzing the EDIFACT messages that it receives from its business partners. We start by transforming a set of observed messages to an event log, which requires that the individual messages are correlated to process instances. Thereby, we make use of the specific structure of EDIFACT messages. Then we apply process mining techniques to uncover the inter-organizational business processes. Our results show that inter-organizational business process models can be derived by analyzing EDI messages that are exchanged in a network of organizations.

Published
2012

32. Process Mining for Electronic Data Interchange

Author

Engel, R., Krathu, W., Zapletal, M., Pichler, C., Aalst, van der, W.M.P., Werthner, H., Huemer, C., Setzer, T., and Process Science

Subjects
Business process management, Choreography, Business information, Process management, business.industry, Computer science, Business process, EDIFACT, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Process mining, Work in process, business, Electronic data interchange
Abstract

Choreography modeling and service integration received a lot of attention in the last decade. However, most real-world implementations of inter-organizational systems are still realized by traditional Electronic Data Interchange (EDI) standards. In traditional EDI standards, the notion of process or choreography is not explicitly specified. Rather, every business document exchange stands for its own. This lack of process awareness in traditional EDI systems hinders organizations from applying Business Process Management (BPM) methods in such settings. To address this shortcoming, we seek to derive choreographies from EDI message exchanges. Thereby, we employ and extend process mining techniques, which have so far concentrated on business processes within single organizations. We discover the interaction sequences between the partners as well as the business information conveyed in the exchanged documents, which goes beyond the state-of-the-art in process mining. As a result, we lift the information gained on the IT level to the business level. This enables us to derive new insights that help organizations to improve their performance, e.g., an organization may get insights into the value of its business partnerships to support an efficient decision making process. This way we hope to bring the merits of BPM to inter-organizational systems realized by traditional EDI standards.

Published
2011
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34. Inclusive parton cross-sections in photoproduction and photon structure

Author

Ahmed, T., Aid, S., Baranov, P., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Barrelet, E., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Gamerdinger, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Bartel, W., Genzel, H., Gerhards, R., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Gorichev, P., Barth, M., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Bassler, U., Hamon, O., Hampel, M., Hanlon, E. M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herynek, I., Beck, H. P., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Hudgson, V. L., Behrend, H. J., Huet, P., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Belousov, A., Jansen, T., Jonsson, L., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Berger, Christoph, Katzy, J., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Knies, G., Bernardi, G., Ko, W., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Andreev, V., Bernet, R., Kramerkamper, T., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kubenka, J. P., Kuster, H., Kuhlen, M., Kurca, T., Bertrand-Coremans, G., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Besancon, M., Leverenz, C., Levonian, S., Ley, C., Lindner, A., Lindstrom, G., Link, J., Linsel, F., Lipinski, J., List, B., Lobo, G., Beyer, R., Loch, P., Lohmander, H., Lomas, J., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Biddulph, P., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., Bispham, P., McMahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, C. A., Meyer, H., Meyer, J., Migliori, A., Mikocki, S., Bizot, J. C., Milstead, D., Moreau, F., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Blobel, V., Naumann, T., Newman, Paul R., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Niedzballa, C., Nisius, R., Borras, K., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oakden, M., Oberlack, H., Obrock, U., Olsson, J. E., Ozerov, D., Panaro, E., Panitch, A., Botterweck, F., Pascaud, C., Patel, G. D., Peppel, E., Perez, E., Phillips, J. P., Pichler, C., Pieuchot, A., Pitzl, D., Pope, G., Prell, Soeren A., Andrieu, B., Boudry, V., Prosi, R., Rabbertz, K., Radel, G., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Braemer, A., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Brasse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Rylko, R., Sahlmann, N., Salesch, S. G., Sanchez, E., Sankey, D. P., Schacht, P., Braunschweig, W., Schiek, S., Schleper, P., von Schlippe, W., Schmidt, C., Schmidt, D., Schmidt, G., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Brisson, V., Schwind, A., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Chekelian, V. I., Sheviakov, I., Shooshtari, H., Shtarkov, L. N., Siegmon, G., Bruncko, D., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Solochenko, V., Solovev, Ya., Spiekermann, J., Spielman, S., Spitzer, H., Brune, C., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Stosslein, U., Stolze, K., Buchholz, R., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Chernyshov, V., Thiebaux, C., Thompson, Graham, Truoel, Peter, Turnau, J., Bungener, L., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Burger, J., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walker, I. W., Walther, A., Weber, G., Weber, M., Wegener, D., Appuhn, R. D., Busser, F. W., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Wittek, C., Wright, A. E., Wunsch, E., Wulff, N., Bunyatyan, A., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zhokin, A., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., H1 Collaboration, Burke, Stephen, Burton, M., Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Charlet, M., Clarke, D., Arpagaus, M., Clegg, Arthur B., Clerbaux, B., Colombo, M., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Babaev, A., Cussans, D. G., Cvach, J., Dagoret, S., Dainton, J. B., Dau, W. D., Daum, K., David, M., Delcourt, B., Del Buono, L., de Roeck, A., Baehr, J., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Ban, J., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ban, Y., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., and Feltesse, J.

Subjects
interaction [photon p], pair production [jet], transverse momentum [cross section], correlation: (jet parton), photoproduction [jet], 296 GeV-cms, energy flow [transverse energy], rapidity dependence, photon p: interaction, photon p [interaction], photoproduction: jet, cross section: transverse momentum, ddc:530, (jet parton) [correlation], photon: resolved, exchange [one-photon], colliding beams [electron p], transverse momentum: parton, interaction: photon p, jet: photoproduction, DESY DESY HERA Stor Stor, pair production: jet, bibliography, resolved [photon], one-photon: exchange, electron p [colliding beams], jet [pair production], jet [photoproduction], parton [momentum spectrum], angular dependence, colliding beams: electron p, momentum spectrum: parton, electron p: colliding beams, transverse energy: energy flow, one-photon [exchange], jet: pair production, H1, parton [transverse momentum], exchange: one-photon, experimental results
Abstract

23 pp. (1995)., Photoproduction of 2-jet events is studied with the H1 detector at HERA. Parton cross sections are extracted from the data by an unfolding method using leading order parton-jet correlations of a QCD generator. The gluon distribution in the photon is derived in the fractional momentum range 0.04 ⩽ x γ ⩽ 1 at the average factorization scale 75 GeV 2 .

Published
1995
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35. Measurement of the total photon-proton cross-section and its decomposition at 200-GeV center-of-mass energy

Author

Aid, S., Andreev, V., Barrelet, E., Felst, R., Feltesse, J., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Barschke, R., Forbush, M., Formanek, J., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Garvey, J., Gayler, Joerg, Gebauer, M., Bartel, W., Gellrich, A., Genzel, H., Gerhards, R., Glazov, A., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Barth, M., Gorelov, I., Gorichev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Griffiths, R., Grindhammer, Guenter, Gruber, A., Gruber, C., Bassler, U., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hapke, M., Haynes, W. J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Beck, H. P., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Behrend, H. J., Hudgson, V. L., Huet, P., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Belousov, A., Janoth, J., Jansen, T., Jonsson, L., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Berger, Christoph, Kathage, U., Katzy, J., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Bernardi, G., Knies, G., Ko, W., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Andrieu, B., Bernet, R., Kotelnikov, S. K., Kramerkamper, T., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kuster, H., Kuhlen, M., Kurca, T., Bertrand-Coremans, G., Kurzhofer, J., Kuznik, B., Lacour, D., Laforge, B., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Besancon, M., Lebedev, A., Lehner, F., Leverenz, C., Levonian, S., Ley, C., Lindstrom, G., Link, J., Linsel, F., Lipinski, J., List, B., Beyer, R., Lobo, G., Loch, P., Lohmander, H., Lomas, J., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Biddulph, P., Maracek, R., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, G., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Bispham, P., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, A., Meyer, C. A., Meyer, H., Bizot, J. C., Meyer, J., Meyer, P. O., Migliori, A., Mikocki, S., Milstead, D., Moreau, F., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Blobel, V., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Borras, K., Niebergall, F., Niebuhr, C., Niedzballa, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oakden, M., Oberlack, H., Obrock, U., Botterweck, F., Olsson, J. E., Ozerov, D., Palmen, P., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Pawletta, H., Peppel, E., Perez, E., Appuhn, R. D., Boudry, V., Phillips, J. P., Pichler, C., Pieuchot, A., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Rabbertz, K., Radel, G., Raupach, F., Bourov, S., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Braemer, A., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Brasse, F., Sahlmann, N., Sankey, D. P., Schacht, P., Schiek, S., Schlief, S., Schleper, P., von Schlippe, W., Schmidt, D., Schmidt, G., Schoning, A., Braunschweig, W., Schroder, V., Schuhmann, E., Schwab, B., Sciacca, G., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Chekelian, V. I., Sheviakov, I., Brisson, V., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Solochenko, V., Solovev, Ya., Spiekermann, J., Bruncko, D., Spielman, S., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Brune, C., Stosslein, U., Stolze, K., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Chernyshov, V., Theissen, J., Thiebaux, C., Buchholz, R., Thompson, Graham, Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Vandenplas, D., Bungener, L., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walther, A., Arpagaus, M., Burger, J., Waugh, B., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Busser, F. W., Wittek, C., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zhokin, A., Zimmer, M., Bunyatyan, A., Zimmermann, W., Zomer, F., Zsembery, J., Zuber, K., zur Nedden, M., H1 Collaboration, Burke, Stephen, Burton, M., Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Charlet, M., Babaev, A., Clarke, D., Clegg, Arthur B., Clerbaux, B., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Bahr, J., Cussans, D. G., Cvach, J., Dagoret, S., Dainton, J. B., Dau, W. D., Daum, K., David, M., Davis, C. L., Delcourt, B., Del Buono, L., Ban, J., de Roeck, A., De Wolf, E. A., Dixon, P., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Ban, Y., Dunger, O., Duhm, H., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Baranov, P., Eisele, F., Eisenhandler, E., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., 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), 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, and 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)

Subjects
interaction [photon p], photoproduction [vector meson], nondiffractive, elastic scattering, photoproduction [hadron], 296 GeV-cms, hadron [photoproduction], vector meson [photoproduction], colliding beams [positron p], DESY HERA Stor, photon p [interaction], positron p [colliding beams], one-photon [exchange], H1, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, energy dependence [cross section], dissociation [diffraction], exchange [one-photon], experimental results
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 200GeV a value of $\sigma_{tot}~{\gamma{p}}= 165\pm2\pm11\mu$b 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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36. Transverse energy and forward jet production in the low x regime at HERA

Author

Aid, S., Andreev, V., Andrieu, B., Appuhn, R. D., Arpagaus, M., Babaev, A., Bahr, J., Ban, J., Ban, Y., Baranov, P., Barrelet, E., Barschke, R., Bartel, W., Barth, M., Bassler, U., Beck, H. P., Behrend, H. J., Belousov, A., Berger, Christoph, Bernardi, G., Bernet, R., Bertrand-Coremans, G., Besancon, M., Beyer, R., Biddulph, P., Bispham, P., Bizot, J. C., Blobel, V., Borras, K., Botterweck, F., Boudry, V., Braemer, A., Brasse, F., Braunschweig, W., Brisson, V., Bruncko, D., Brune, C., Buchholz, R., Bungener, L., Burger, J., Busser, F. W., Bunyatyan, A., Burke, Stephen, Burton, M., Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Charlet, M., Clarke, D., Clegg, Arthur B., Clerbaux, B., Colombo, M., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Cvach, J., Dagoret, S., Dainton, J. B., Dau, W. D., Daum, K., David, M., Delcourt, B., Del Buono, L., de Roeck, A., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Genzel, H., Gerhards, R., Glazov, A., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Gorichev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Hudgson, V. L., Huet, P., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Jansen, T., Jonsson, L., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Katzy, J., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Kramerkamper, T., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Lehner, F., Leverenz, C., Levonian, S., Ley, C., Lindner, A., Lindstrom, G., Link, J., Linsel, F., Lipinski, J., List, B., Lobo, G., Loch, P., Lohmander, H., Lomas, J., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, G., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, A., Meyer, C. A., Meyer, H., Meyer, J., Migliori, A., Mikocki, S., Milstead, D., Moreau, F., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Niedzballa, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oakden, M., Oberlack, H., Obrock, U., Olsson, J. E., Ozerov, D., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Peppel, E., Perez, E., Phillips, J. P., Pichler, C., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Rabbertz, K., Radel, G., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Rylko, R., Sahlmann, N., Sankey, D. P., Schacht, P., Schiek, S., Schlief, S., Schleper, P., von Schlippe, W., Schmidt, D., Schmidt, G., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Sciacca, G., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Chekelian, V. I., Sheviakov, I., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Solochenko, V., Solovev, Ya., Spiekermann, J., Spielman, S., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Stosslein, U., Stolze, K., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Taylor, Richard E., Chernyshov, V., Thiebaux, C., Thompson, Graham, Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Vandenplas, D., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Wittek, C., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zhokin, A., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., zur Nedden, M., and H1 Collaboration

Subjects
electron p: deep inelastic scattering, Lipatov equation, small-angle: production, 296 GeV-cms, rapidity dependence, x-dependence, electroproduction: jet, DGLAP equation, colliding beams: electron p, jet: electroproduction, DESY HERA Stor, electron p: colliding beams, deep inelastic scattering: electron p, dependence: momentum transfer, transverse energy: energy flow, H1, production: small-angle, experimental results
Abstract

The production of transverse energy in deep inelastic scattering is measured as a function of the kinematic variables x and Q 2 using the H1 detector at the ep collider HERA. The results are compared to the different predictions based upon two alternative QCD evolution equations, namely the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) and the Balitsky-Fadin-Kuraev-Lipatov (BFKL) equations. In a pseudorapidity interval which is central in the hadronic centre of mass system between the current and the proton remnant fragmentation region the produced transverse energy increases with decreasing x for constant Q 2 . Such a behaviour can be explained with a QCD calculation based upon the BFKL ansatz. The rate of forward jets, proposed as a signature for BFKL dynamics, has been measured.

Published
1995
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37. Leptoquarks and compositeness scales from a contact interaction analysis of deep inelastic $\mathrm{e^\pm p}$ scattering at HERA

Author

Aid, S., Andreev, V., Andrieu, B., Appuhn, R. D., Arpagaus, M., Babaev, A., Baehr, J., Ban, J., Ban, Y., Baranov, P., Barrelet, E., Barschke, R., Bartel, W., Barth, M., Bassler, U., Beck, H. P., Behrend, H. J., Belousov, A., Berger, Christoph, Bernardi, G., Bernet, R., Bertrand-Coremans, G., Besancon, M., Beyer, R., Biddulph, P., Bispham, P., Bizot, J. C., Blobel, V., Borras, K., Botterweck, F., Boudry, V., Braemer, A., Brasse, F., Braunschweig, W., Brisson, V., Bruncko, D., Brune, C., Buchholz, R., Bungener, L., Burger, J., Busser, F. W., Bunyatyan, A., Burke, Stephen, Burton, M., Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Charlet, M., Clarke, D., Clegg, Arthur B., Clerbaux, B., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Cvach, J., Dagoret, S., Dainton, J. B., Dau, W. D., Daum, K., David, M., Delcourt, B., Del Buono, L., de Roeck, A., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Genzel, H., Gerhards, R., Glazov, A., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Gorichev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Hudgson, V. L., Huet, P., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Jansen, T., Jonsson, L., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Katzy, J., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Kramerkamper, T., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Lehner, F., Leverenz, C., Levonian, S., Ley, C., Lindstrom, G., Link, J., Linsel, F., Lipinski, J., List, B., Lobo, G., Loch, P., Lohmander, H., Lomas, J., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, G., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, A., Meyer, C. A., Meyer, H., Meyer, J., Migliori, A., Mikocki, S., Milstead, D., Moreau, F., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Niedzballa, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oakden, M., Oberlack, H., Obrock, U., Olsson, J. E., Ozerov, D., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Peppel, E., Perez, E., Phillips, J. P., Pichler, C., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Rabbertz, K., Radel, G., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Rylko, R., Sahlmann, N., Sanchez, E., Sankey, D. P., Schacht, P., Schiek, S., Schlief, S., Schleper, P., von Schlippe, W., Schmidt, D., Schmidt, G., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Sciacca, G., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Chekelian, V. I., Sheviakov, I., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Solochenko, V., Solovev, Ya., Spiekermann, J., Spielman, S., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Stosslein, U., Stolze, K., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Chernyshov, V., Thiebaux, C., Thompson, Graham, Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Vandenplas, D., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Wittek, C., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zhokin, A., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., zur Nedden, M., and H1 Collaboration

Subjects
electron p: deep inelastic scattering, effective Lagrangian: chiral, leptoquark: coupling, electron p [deep inelastic scattering], approx. 300 GeV-cms, positron p [deep inelastic scattering], model: composite, coupling: leptoquark, validity test [electroweak interaction], momentum transfer: differential cross section, deep inelastic scattering: electron p, differential cross section: momentum transfer, positron p [colliding beams], hadron: multiple production, validity test: electroweak interaction, deep inelastic scattering: positron p, ddc:530, deep inelastic scattering [positron p], momentum transfer [differential cross section], hadron [multiple production], electroweak interaction [validity test], colliding beams [electron p], multiple production [hadron], composite [model], form factor, positron p: deep inelastic scattering, DESY DESY HERA Stor Stor, differential cross section [momentum transfer], electron p [colliding beams], positron p: colliding beams, colliding beams [positron p], leptoquark [postulated particle], colliding beams: electron p, electron p: colliding beams, multiple production: hadron, colliding beams: positron p, postulated particle: leptoquark, electroweak interaction: validity test, deep inelastic scattering [electron p], H1, chiral [effective Lagrangian], leptoquark [coupling], coupling [leptoquark], experimental results
Abstract

15 pp. (1995)., A contact interaction analysis is presented to search for new phenomena beyond the Standard Model in deep inelastic e ± p → e ± hadrons scattering. The data are collected with the H1 detector at HERA and correspond to integrated luminosities of 0.909 pb −1 and 2.947 pb −1 for electron and positron beams, respectively. The differential cross sections dσ/d Q 2 are measured in the Q 2 range between 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.

Published
1995
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38. Observation of hard processes in rapidity gap events in gamma-p interactions at Hera

Author

Ahmed, T., Aid, S., Akhundov, A. A., Andreev, V., Andrieu, B., Appuhn, R. D., Arpagaus, M., Babaev, A., Baehr, J., Ban, J., Baranov, P., Barrelet, E., Bartel, W., Barth, M., Bassler, U., Beck, H. P., Behrend, H. J., Belousov, A., Berger, C., Bergstein, H., Bernardi, G., Bernet, R., Bertrand-Coremans, G., Besancon, M., Beyer, R., Bizot, J. C., Blobel, V., Borras, K., Botterweck, F., Boudry, V., Braemer, A., Brasse, F., Braunschweig, W., Brisson, V., Bruncko, D., Brune, C., Buchholz, R., Buengener, L., Buerger, J., Bsser, F. W., Buniatian, A., Burke, S., Burton, M., Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Clarke, D., Clegg, A. B., Clerbaux, B., Colombo, M., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Cvach, J., Sylvie DAGORET, Dainton, J. B., Danilov, M., Dau, W. D., Daum, K., David, M., Deffur, E., Delcourt, B., Del Buono, L., Roeck, A., Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, A., Duboc, J., Dllmann, D., Dnger, O., Duhm, H., Ebert, J., Ebert, T. R., Eckerlin, G., Efremenko, V., Egli, S., Erlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flgge, G., Fomenko, A., Fominykh, B., Forbush, M., Formnek, J., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Gamerdinger, K., Garvey, J., Gayler, J., Gebauer, M., Gellrich, A., Genzel, H., Gerhards, R., Goerlach, U., Grlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Goritchev, P. A., Grab, C., Grssler, H., Grssler, R., Greenshaw, T. J., Grindhammer, G., Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hanlon, E. M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hppner, M., Horisberger, R., Hudgson, V. L., Huet, P., Htte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Jansen, T., Jnsson, L., Johannsen, K., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Katzy, J., Kaufmann, H. H., Kazarian, S., Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, C., Klein, M., Kleinwort, C., Knies, G., Ko, W., Khler, T., Khne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Krmerkmper, T., Krasny, M. W., Krehbiel, H., Krcker, D., Krger, U. P., Krner-Marquis, U., Kubenka, J. P., Kster, H., Kuhlen, M., Kurca, T., Kurzhfer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Leverenz, C., Levonian, S., Ley, C., Lindner, A., Lindstrm, G., Linsel, F., Lipinski, J., List, B., Loch, P., Lohmander, H., Lpez, G. C., Lubimov, V., Lke, D., Magnussen, N., Malinovskii, E., Mani, S., Maracek, R., Marage, P., Marks, J., Marshall, R., Martens, J., Roland Martin, Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, A., Maxfield, S. J., Mcmahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, C. A., Meyer, H., Meyer, J., Mikocki, S., Milstead, D., Moreau, F., Morris, J. V., Mroczko, E., Mller, G., Mller, K., Murn, P., Nagovitsin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, P. R., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oakden, M. N., Oberlack, H., Obrock, U., Olsson, J. E., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Peppel, E., Prez, E., Phillips, J. P., Pichler, C., Pitzl, D., Pope, G., Prell, S., Prosi, R., Rdel, G., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Rter, K., Rusakov, S. V., Rybicki, K., Rylko, R., Sahlmann, N., Snchez, E., Sankey, D. P. C., Savitsky, M., Schacht, P., Schiek, S., Schleper, P., Schlippe, W., Schmidt, C., Schmidt, D., Schmidt, G., Schning, A., Schrder, V., Schuhmann, E., Schwab, B., Schwind, A., Seehausen, U., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Shekelyan, V. I., Shevyakov, I., Shooshtari, H., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Yu. Solovev, Spiekermann, J., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Stsslein, U., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Taylor, R. E., Chernyshov, V., Thiebaux, C., Thompson, G., Trul, P., Turnau, J., Tutas, J., Uelkes, P., Usik, A., Valkr, S., Valkrov, A., Vallee, C., Esch, P., Mechelen, P., Vartapetian, A., Ya. Vazdik, Vecko, M., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walker, I. W., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Wright, A. E., Wnsch, E., Wulff, N., Yiou, T. P., Zcek, J., Zarbock, D., Zhiqing Zhang, Zhokin, A., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., 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 Starita, Sabine

Subjects
[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
1995

39. Experimental study of hard photon radiation processes at HERA

Author

Ahmed, T., Aid, S., Andreev, V., Andrieu, B., Appuhn, R. D., Arpagaus, M., Babaev, A., Baehr, J., Ban, J., Baranov, P., Barrelet, E., Bartel, W., Barth, M., Bassler, U., Beck, H. P., Behrend, H. J., Belousov, A., Berger, Christoph, Bergstein, H., Bernardi, G., Bernet, R., Bertrand-Coremans, G., Besancon, M., Beyer, R., Biddulph, P., Bizot, J. C., Blobel, V., Borras, K., Botterweck, F., Boudry, V., Braemer, A., Brasse, F., Braunschweig, W., Brisson, V., Bruncko, D., Brune, C., Buchholz, R., Bungener, L., Burger, J., Busser, F. W., Bunyatyan, A., Burke, Stephen, Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Clarke, D., Clegg, Arthur B., Clerbaux, B., Colombo, M., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Cvach, J., Dagoret, S., Dainton, J. B., Danilov, M., Dau, W. D., Daum, K., David, M., Deffur, E., Delcourt, B., Del Buono, L., de Roeck, A., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Gamerdinger, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Genzel, H., Gerhards, R., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Gorichev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hanlon, E. M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herma, R., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Hudgson, V. L., Huet, P., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Jansen, T., Jonsson, L., Johannsen, K., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Katzy, J., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Kramerkamper, T., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kubenka, J. P., Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Leverenz, C., Levonian, S., Ley, C., Lindner, A., Lindstrom, G., Linsel, F., Lipinski, J., List, B., Loch, P., Lohmander, H., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, C. A., Meyer, H., Meyer, J., Mikocki, S., Milstead, D., Moreau, F., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oakden, M., Oberlack, H., Obrock, U., Olsson, J. E., Ozerov, D., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Peppel, E., Perez, E., Phillips, J. P., Pichler, C., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Radel, G., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Rylko, R., Sahlmann, N., Sanchez, E., Sankey, D. P., Savitsky, M., Schacht, P., Schiek, S., Schleper, P., von Schlippe, W., Schmidt, C., Schmidt, D., Schmidt, G., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Schwind, A., Seehausen, U., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Chekelian, V. I., Sheviakov, I., Shooshtari, H., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Solochenko, V., Solovev, Ya., Spiekermann, J., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Stosslein, U., Stolze, K., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Taylor, Richard E., Chernyshov, V., Thiebaux, C., Thompson, Graham, Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Vecko, M., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walker, I. W., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zhokin, A., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., and H1 Collaboration

Subjects
photon [electroproduction], +p+electron+photon%22">electron p --> p electron photon, electron p: inclusive reaction, 296 GeV-cms, bremsstrahlung, +electron+photon+anything%22">electron p --> electron photon anything, momentum transfer: differential cross section, differential cross section: momentum transfer, deep inelastic scattering, radiative correction, electron p: exclusive reaction, ddc:530, momentum transfer [differential cross section], energy: correlation, colliding beams [electron p], (electron): energy spectrum, DESY DESY HERA Stor Stor, electroproduction: photon, energy spectrum: (electron), differential cross section [momentum transfer], electron p [colliding beams], photon: electroproduction, luminosity: measurement, exclusive reaction [electron p], colliding beams: electron p, correlation [energy], electron p: colliding beams, measurement [luminosity], energy spectrum [(electron)], (electron) [energy spectrum], H1, electroproduction [photon], inclusive reaction [electron p], Compton scattering, experimental results
Abstract

16 pp. (1995)., 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.

Published
1995
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40. The Gluon density of the proton at low x from a QCD analysis of $\mathrm{F_2}$

Author

Aid, S., Andreev, V., Andrieu, B., Appuhn, R. D., Arpagaus, M., Babaev, A., Bahr, J., Ban, J., Ban, Y., Baranov, P., Barrelet, E., Barschke, R., Bartel, W., Barth, M., Bassler, U., Beck, H. P., Behrend, H. J., Belousov, A., Berger, Christoph, Bernardi, G., Bernet, R., Bertrand-Coremans, G., Besancon, M., Beyer, R., Biddulph, P., Bispham, P., Bizot, J. C., Blobel, V., Borras, K., Botterweck, F., Boudry, V., Braemer, A., Brasse, F., Braunschweig, W., Brisson, V., Bruncko, D., Brune, C., Buchholz, R., Bungener, L., Burger, J., Busser, F. W., Bunyatyan, A., Burke, Stephen, Burton, M., Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Charlet, M., Clarke, D., Clegg, Arthur B., Clerbaux, B., Colombo, M., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Cvach, J., Dagoret, S., Dainton, J. B., Dau, W. D., Daum, K., David, M., Delcourt, B., Del Buono, L., de Roeck, A., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Gamerdinger, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Genzel, H., Gerhards, R., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Gorichev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hanlon, E. M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Hudgson, V. L., Huet, P., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Jansen, T., Jonsson, L., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Katzy, J., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Kramerkamper, T., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kubenka, J. P., Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Leverenz, C., Levonian, S., Ley, C., Lindner, A., Lindstrom, G., Link, J., Linsel, F., Lipinski, J., List, B., Lobo, G., Loch, P., Lohmander, H., Lomas, J., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, C. A., Meyer, H., Meyer, J., Migliori, A., Mikocki, S., Milstead, D., Moreau, F., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Niedzballa, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oakden, M., Oberlack, H., Obrock, U., Olsson, J. E., Ozerov, D., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Peppel, E., Perez, E., Phillips, J. P., Pichler, C., Pieuchot, A., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Rabbertz, K., Radel, G., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Rylko, R., Sahlmann, N., Sanchez, E., Sankey, D. P., Schacht, P., Schiek, S., Schleper, P., von Schlippe, W., Schmidt, C., Schmidt, D., Schmidt, G., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Schwind, A., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Chekelian, V. I., Sheviakov, I., Shooshtari, H., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Solochenko, V., Solovev, Ya., Spiekermann, J., Spielman, S., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Stosslein, U., Stolze, K., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Chernyshov, V., Thiebaux, C., Thompson, Graham, Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walker, I. W., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Wittek, C., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zhokin, A., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., and H1 Collaboration

Subjects
electron p: deep inelastic scattering, perturbation theory [quantum chromodynamics], Lipatov equation, electron p [deep inelastic scattering], differential equations: solution, structure function [p], 296 GeV-cms, small-x [structure function], DGLAP equation, deep inelastic scattering: electron p, momentum spectrum [gluon], ddc:530, p: structure function, quantum chromodynamics: perturbation theory, violation [scaling], colliding beams [electron p], gluon: momentum spectrum, electron p [colliding beams], colliding beams: electron p, DESY HERA Stor, electron p: colliding beams, solution [differential equations], structure function: small-x, deep inelastic scattering [electron p], H1, scaling: violation, experimental results
Abstract

16 pp. (1995)., We present a QCD analysis of the proton structure function F 2 measured by the H1 experiment at HERA, combined with data from previous fixed target experiments. The gluon density is extracted from the scaling violations of F 2 in the range 2 · 10 −4 < x < 3 · 10 −2 and compared with an approximate solution of the QCD evolution equations. The gluon density is found to rise steeply with decreasing x .

Published
1995
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41. First measurement of the deep inelastic structure of proton diffraction

Author

Ahmed, T., Aid, S., Baranov, P., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Forbush, M., Formanek, J., Foster, J. M., Barrelet, E., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Gamerdinger, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Genzel, H., Bartel, W., Gerhards, R., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Gorichev, P., Grab, C., Barth, M., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Bassler, U., Hampel, M., Hanlon, E. M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herynek, I., Hess, M. F., Beck, H. P., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Hudgson, V. L., Huet, P., Behrend, H. J., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Jansen, T., Belousov, A., Jonsson, L., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Katzy, J., Berger, Christoph, Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Knies, G., Ko, W., Bernardi, G., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Kramerkamper, T., Andreev, V., Bernet, R., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kubenka, J. P., Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Bertrand-Coremans, G., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Leverenz, C., Besancon, M., Levonian, S., Ley, C., Lindner, A., Lindstrom, G., Link, J., Linsel, F., Lipinski, J., List, B., Lobo, G., Loch, P., Beyer, R., Lohmander, H., Lomas, J., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Marage, P., Biddulph, P., Marks, J., Marshall, R., Martens, J., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Bispham, P., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, C. A., Meyer, H., Meyer, J., Mikocki, S., Milstead, D., Moreau, F., Bizot, J. C., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Blobel, V., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Niedzballa, C., Nisius, R., Nowak, G., Noyes, G. W., Borras, K., Nyberg-Werther, M., Oakden, M., Oberlack, H., Obrock, U., Olsson, J. E., Ozerov, D., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Botterweck, F., Peppel, E., Perez, E., Phillips, J. P., Pichler, C., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Rabbertz, K., Radel, G., Andrieu, B., Boudry, V., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Braemer, A., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Brasse, F., Rybicki, K., Rylko, R., Sahlmann, N., Sanchez, E., Sankey, D. P., Schacht, P., Schiek, S., Schleper, P., von Schlippe, W., Schmidt, C., Braunschweig, W., Schmidt, D., Schmidt, G., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Schwind, A., Sefkow, F., Seidel, M., Sell, R., Brisson, V., Semenov, A., Chekelian, V. I., Sheviakov, I., Shooshtari, H., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Bruncko, D., Smith, J. R., Solochenko, V., Solovev, Ya., Spiekermann, J., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Brune, C., Stephens, K., Stier, J., Stiewe, J., Stosslein, U., Stolze, K., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Buchholz, R., Taylor, Richard E., Chernyshov, V., Thiebaux, C., Thompson, Graham, Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Bungener, L., Valkarova, A., Vallee, C., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Burger, J., Wagener, M., Walker, I. W., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Appuhn, R. D., Busser, F. W., Winde, M., Winter, G. G., Wittek, C., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Bunyatyan, A., Zhokin, A., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., H1 Collaboration, Burke, Stephen, Burton, M., Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Clarke, D., Clegg, Arthur B., Arpagaus, M., Clerbaux, B., Colombo, M., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Babaev, A., Cvach, J., Dagoret, S., Dainton, J. B., Dau, W. D., Daum, K., David, M., Deffur, E., Delcourt, B., Del Buono, L., de Roeck, A., Baehr, J., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Ban, J., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ban, Y., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., and Feltesse, J.

Subjects
electron p: deep inelastic scattering, structure function: pomeron, gap [rapidity], electron p [deep inelastic scattering], diffraction, structure function [p], momentum transfer [dependence], factorization [structure function], x-dependence, deep inelastic scattering: electron p, ddc:530, p: structure function, colliding beams [electron p], pomeron: exchange, DESY DESY HERA Stor Stor, scaling, 296 GeV-cms: 8.5 < Q**2 < 50 GeV**2, electron p [colliding beams], 8.5 < Q**2 < 50 GeV**2 [296 GeV-cms], pomeron [structure function], structure function: factorization, rapidity: gap, colliding beams: electron p, electron p: colliding beams, exchange: pomeron, dependence: momentum transfer, deep inelastic scattering [electron p], exchange [pomeron], H1, pomeron [exchange], experimental results
Abstract

16 pp. (1995)., A measurement is presented, using data taken with the H1 detector at HERA, of the contribution of diffractive interactions to deep-inelastic electron-proton ( ep ) scattering in the kinematic range 8.5 < Q 2 < 50GeV 2 , 2.4 × 10 −4 < Bjorken- x < 0.0133, and 3.7 × 10 −4 < χ p < 0.043. The diffractive contribution to the proton structure function F 2 ( x , Q 2 ) is evaluated as a function of the appropriate deep-inelastic scattering variables χ p , Q 2 , β (= χ χ p ) using a class of deep-inelastic ep scattering events with no hadronic energy flow in an interval of pseudo-rapidity adjacent to the proton beam direction. the dependence of this contribution on χ p is measured to be χ p − n with n = 1.19 ± 0.06 (stat.) ± 0.07 (syst.) independent of β and Q 2 , which is consistent with both a diffractive interpretation and a factorisable ep diffractive cross section. A first measurement of the deep-inelastic structure of the pomeron in the form of the Q 2 and β dependences of a factorised structure function is presented. For all measured β, this structure function is observed to be consistent with scale invariance.

Published
1995
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42. A Measurement of the proton structure function $\mathrm{F_2 (x, Q^2)}$

Author

Ahmed, T., Aid, S., Baranov, P., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Barrelet, E., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Gamerdinger, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Bartel, W., Genzel, H., Gerhards, R., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Gorichev, P., Barth, M., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Bassler, U., Hamon, O., Hampel, M., Hanlon, E. M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herma, R., Beck, H. P., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Behrend, H. J., Hudgson, V. L., Huet, P., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Belousov, A., Janoth, J., Jansen, T., Jonsson, L., Johannsen, K., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Berger, Christoph, Kasselmann, P., Kathage, U., Katzy, J., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Bergstein, H., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Akhundov, Arif A., Bernardi, G., Kostka, P., Kotelnikov, S. K., Kramerkamper, T., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kubenka, J. P., Kuster, H., Bernet, R., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Bertrand-Coremans, G., Laporte, J. F., Lebedev, A., Leverenz, C., Levonian, S., Ley, C., Lindner, A., Lindstrom, G., Linsel, F., Lipinski, J., List, B., Besancon, M., Loch, P., Lohmander, H., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Marage, P., Beyer, R., Marks, J., Marshall, R., Martens, J., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Biddulph, P., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, C. A., Meyer, H., Meyer, J., Mikocki, S., Milstead, D., Moreau, F., Bizot, J. C., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Blobel, V., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Borras, K., Oakden, M., Oberlack, H., Obrock, U., Olsson, J. E., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Peppel, E., Perez, E., Botterweck, F., Phillips, J. P., Pichler, C., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Radel, G., Raupach, F., Reimer, P., Reinshagen, S., Andreev, V., Boudry, V., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Robmann, P., Roloff, H. E., Braemer, A., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Rylko, R., Sahlmann, N., Brasse, F., Sanchez, E., Sankey, D. P., Savitsky, M., Schacht, P., Schiek, S., Schleper, P., von Schlippe, W., Schmidt, C., Schmidt, D., Schmidt, G., Braunschweig, W., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Schwind, A., Seehausen, U., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Brisson, V., Chekelian, V. I., Sheviakov, I., Shooshtari, H., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Bruncko, D., Solovev, Ya., Spiekermann, J., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Brune, C., Stiewe, J., Stosslein, U., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Taylor, Richard E., Chernyshov, V., Thiebaux, C., Buchholz, R., Thompson, Graham, Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Van Esch, P., Bungener, L., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Vecko, M., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walker, I. W., Burger, J., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Andrieu, B., Busser, F. W., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zhokin, A., Zimmer, M., Zimmermann, W., Bunyatyan, A., Zomer, F., Zuber, K., H1 Collaboration, Burke, Stephen, Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Clarke, D., Clegg, Arthur B., Clerbaux, B., Appuhn, R. D., Colombo, M., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Cvach, J., Arpagaus, M., Dagoret, S., Dainton, J. B., Danilov, M., Dau, W. D., Daum, K., David, M., Deffur, E., Delcourt, B., Del Buono, L., de Roeck, A., Babaev, A., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Baehr, J., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ban, J., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., and Feltesse, J.

Subjects
electron p: deep inelastic scattering, gap [rapidity], electron p [deep inelastic scattering], diffraction, structure function [p], momentum transfer [dependence], 296 GeV-cms, small-x [structure function], x-dependence, deep inelastic scattering: electron p, ddc:530, p: structure function, colliding beams [electron p], DESY DESY HERA Stor Stor, high [momentum transfer], bibliography, electron p [colliding beams], rapidity: gap, colliding beams: electron p, electron p: colliding beams, dependence: momentum transfer, deep inelastic scattering [electron p], structure function: small-x, H1, momentum transfer: high, experimental results
Abstract

32 pp. (1995)., A measurement of the proton structure function F 2 ( x , Q 2 ) is reported for momentum transfers squared Q 2 between 4.5 GeV 2 and 1600 GeV 2 and for Bjorken x between 1.8 × 10 −14 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 .

Published
1995
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43. Measurement of the $e^{+}$ and $e^{-}$ induced charged current cross-sections at HERA

Author

Aid, S., Andreev, V., Andrieu, B., Appuhn, R. D., Arpagaus, M., Babaev, A., Bahr, J., Ban, J., Ban, Y., Baranov, P., Barrelet, E., Barschke, R., Bartel, W., Barth, M., Bassler, U., Beck, H. P., Behrend, H. J., Belousov, A., Berger, Christoph, Bernardi, G., Bernet, R., Bertrand-Coremans, G., Besancon, M., Beyer, R., Biddulph, P., Bispham, P., Bizot, J. C., Blobel, V., Borras, K., Botterweck, F., Boudry, V., Braemer, A., Brasse, F., Braunschweig, W., Brisson, V., Bruncko, D., Brune, C., Buchholz, R., Bungener, L., Burger, J., Busser, F. W., Bunyatyan, A., Burke, Stephen, Burton, M., Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Charlet, M., Clarke, D., Clegg, Arthur B., Clerbaux, B., Colombo, M., Contreras, J. G., Cormack, C., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Cvach, J., Dagoret, S., Dainton, J. B., Dau, W. D., Daum, K., David, M., Delcourt, B., Del Buono, L., de Roeck, A., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Droutskoi, V., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Genzel, H., Gerhards, R., Glazov, A., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Gorelov, I., Gorichev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hapke, M., Haynes, W. J., Heatherington, J., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Hudgson, V. L., Huet, P., Hutte, M., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Jansen, T., Jonsson, L., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Katzy, J., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kohne, J., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Kramerkamper, T., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Lehner, F., Leverenz, C., Levonian, S., Ley, C., Lindstrom, G., Link, J., Linsel, F., Lipinski, J., List, B., Lobo, G., Loch, P., Lohmander, H., Lomas, J., Lopez, G. C., Lyubimov, V., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, G., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, A., Meyer, C. A., Meyer, H., Meyer, J., Migliori, A., Mikocki, S., Milstead, D., Moreau, F., Morris, J. V., Mroczko, E., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Newton, D., Neyret, D., Nguyen, H. K., Nicholls, T. C., Niebergall, F., Niebuhr, C., Niedzballa, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oakden, M., Oberlack, H., Obrock, U., Olsson, J. E., Ozerov, D., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Peppel, E., Perez, E., Phillips, J. P., Pichler, C., Pieuchot, A., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Rabbertz, K., Radel, G., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Rick, H., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Rizvi, E., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Rylko, R., Sahlmann, N., Sankey, D. P., Schacht, P., Schiek, S., Schlief, S., Schleper, P., von Schlippe, W., Schmidt, D., Schmidt, G., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Sciacca, G., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Chekelian, V. I., Sheviakov, I., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Solochenko, V., Solovev, Ya., Spiekermann, J., Spielman, S., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Stosslein, U., Stolze, K., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Chernyshov, V., Thiebaux, C., Thompson, Graham, Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Vandenplas, D., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Wittek, C., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zhokin, A., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., zur Nedden, M., and H1 Collaboration

Subjects
propagator [W], W: propagator, +%28n%29hadron+neutrino%2Fe%22">electron p --> (n)hadron neutrino/e, transverse momentum: high, 296 GeV-cms, +%28n%29hadron+antineutrino%2Fe%22">positron p --> (n)hadron antineutrino/e, high [transverse momentum], charged current, positron p [colliding beams], hadron: multiple production, propagator: mass, ddc:530, hadron [multiple production], colliding beams [electron p], multiple production [hadron], channel cross section, mass [propagator], electron p [colliding beams], positron p: colliding beams, colliding beams [positron p], colliding beams: electron p, DESY HERA Stor, electron p: colliding beams, multiple production: hadron, colliding beams: positron p, H1, propagator [mass], mass: propagator, experimental results
Abstract

21 pp. (1995)., 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.

Published
1995
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46. Photoproduction of J /$\psi$ mesons at HERA

Author

Ahmed, T., Aid, S., Andreev, V., Andrieu, B., Appuhn, R. D., Arpagaus, M., Babaev, A., Bahr, J., Ban, J., Baranov, P., Barrelet, E., Bartel, W., Barth, M., Bassler, U., Beck, H. P., Behrend, H. J., Belousov, A., Berger, Christoph, Bergstein, H., Bernardi, G., Bernet, R., Bertrand-Coremans, G., Besancon, M., Beyer, R., Biddulph, P., Bizot, J. C., Blobel, V., Borras, K., Botterweck, F., Boudry, V., Braemer, A., Brasse, F., Braunschweig, W., Brisson, V., Bruncko, D., Brune, C., Buchholz, R., Bungener, L., Burger, J., Busser, F. W., Bunyatyan, A., Burke, Stephen, Buschhorn, G., Campbell, A. J., Carli, T., Charles, F., Clarke, D., Clegg, Arthur B., Colombo, M., Contreras, J. G., Coughlan, J. A., Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cussans, D. G., Cvach, J., Dagoret, S., Dainton, J. B., Danilov, M., Dau, W. D., Daum, K., David, M., Deffur, E., Delcourt, B., Del Buono, L., de Roeck, A., De Wolf, E. A., Di Nezza, P., Dollfus, C., Dowell, J. D., Dreis, H. B., Duboc, J., Duellmann, Dirk, Dunger, O., Duhm, H., Ebert, J., Ebert, T. R., Eckerlin, Guenter, Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellison, R. J., Elsen, E., Erdmann, M., Erdmann, W., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Ferencei, J., Ferrarotto, F., Flamm, K., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Foster, J. M., Franke, G., Fretwurst, E., Gabathuler, E., Gabathuler, K., Gamerdinger, K., Garvey, J., Gayler, Joerg, Gebauer, M., Gellrich, A., Genzel, H., Gerhards, R., Goerlach, U., Goerlich, L., Gogitidze, N., Goldberg, M., Goldner, D., Gonzalez-Pineiro, B., Goodall, A. M., Gorelov, I., Gorichev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Grindhammer, Guenter, Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hanlon, E. M., Hapke, M., Haynes, W. J., Heatherington, J., Hedberg, V., Heinzelmann, G., Henderson, R. C. W., Henschel, H., Herma, R., Herynek, I., Hess, M. F., Hildesheim, W., Hill, P., Hiller, K. H., Hilton, C. D., Hladky, J., Hoeger, K. C., Hoppner, M., Horisberger, R., Huet, P., Hufnagel, H., Ibbotson, M., Itterbeck, H., Jabiol, M. A., Jacholkowska, A., Jacobsson, C., Jaffre, M., Janoth, J., Jansen, T., Jonsson, L., Johannsen, K., Johnson, D. P., Johnson, L., Jung, H., Kalmus, P. I. P., Kant, D., Kaschowitz, R., Kasselmann, P., Kathage, U., Kaufmann, H. H., Ghazaryan, Samvel, Kenyon, I. R., Kermiche, S., Keuker, C., Kiesling, Christian M., Klein, M., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kolanoski, H., Kole, F., Kolya, S. D., Korbel, V., Korn, M., Kostka, P., Kotelnikov, S. K., Krasny, M. W., Krehbiel, H., Krucker, D., Kruger, U., Kruner-Marquis, U., Kubenka, J. P., Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, M. P. J., Lange, W., Lanius, P., Laporte, J. F., Lebedev, A., Leverenz, C., Levonian, S., Ley, C., Lindner, A., Lindstrom, G., Linsel, F., Lipinski, J., List, B., Loch, P., Lohmander, H., Lopez, G. C., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Maracek, R., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, R., Martyn, H. U., Martyniak, J., Masson, S., Mavroidis, T., Maxfield, S. J., McMahon, S. J., Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, C. A., Meyer, H., Meyer, J., Mikocki, S., Milstead, D., Moreau, F., Morris, J. V., Muller, G., Muller, K., Murin, P., Nagovizin, V., Nahnhauer, R., Naroska, B., Naumann, T., Newman, Paul R., Newton, D., Neyret, D., Nguyen, H. K., Niebergall, F., Niebuhr, C., Nisius, R., Nowak, G., Noyes, G. W., Nyberg-Werther, M., Oberlack, H., Obrock, U., Olsson, J. E., Panaro, E., Panitch, A., Pascaud, C., Patel, G. D., Peppel, E., Perez, E., Phillips, J. P., Pichler, C., Pitzl, D., Pope, G., Prell, Soeren A., Prosi, R., Radel, G., Raupach, F., Reimer, P., Reinshagen, S., Ribarics, P., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Robertson, S. M., Robmann, P., Roloff, H. E., Roosen, R., Rosenbauer, K., Rostovtsev, A., Rouse, F., Royon, C., Ruter, K., Rusakov, S., Rybicki, K., Rylko, R., Sahlmann, N., Sanchez, E., Sankey, D. P., Savitsky, M., Schacht, P., Schiek, S., Schleper, P., von Schlippe, W., Schmidt, C., Schmidt, D., Schmitz, G., Schoning, A., Schroder, V., Schuhmann, E., Schwab, B., Schwind, A., Seehausen, U., Sefkow, F., Seidel, M., Sell, R., Semenov, A., Chekelian, V. I., Sheviakov, I., Shooshtari, H., Shtarkov, L. N., Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, I. O., Smirnov, P., Smith, J. R., Solovev, Ya., Spitzer, H., Starosta, R., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stiewe, J., Stosslein, U., Strachota, J., Straumann, U., Struczinski, W., Sutton, J. P., Tapprogge, S., Taylor, Richard E., Chernyshov, V., Thiebaux, C., Thompson, Graham, Tikhomirov, I., Truoel, Peter, Turnau, J., Tutas, J., Ulkes, P., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Van Esch, P., Van Mechelen, P., Vartapetian, A., Vazdik, Y., Vecko, M., Verrecchia, P., Villet, G., Wacker, K., Wagener, A., Wagener, M., Walker, I. W., Walther, A., Weber, G., Weber, M., Wegener, D., Wegner, A., Wellisch, H. P., West, L. R., Willard, S., Winde, M., Winter, G. G., Wright, A. E., Wunsch, E., Wulff, N., Yiou, T. P., Zacek, J., Zarbock, D., Zhang, Z., Zimmer, M., Zimmermann, W., Zomer, F., Zuber, K., and H1 Collaboration

Subjects
spectrum: momentum transfer, electron p: inclusive reaction, J/psi(3100) [photoproduction], electroproduction: J/psi(3100), +muon%2B+muon%22">J/psi(3100) --> muon+ muon, momentum transfer [spectrum], transverse momentum [differential cross section], 296 GeV-cms, +positron+electron%22">J/psi(3100) --> positron electron, leptonic decay: J/psi(3100), differential cross section [transverse momentum], photoproduction [J/psi(3100)], J/psi(3100): photoproduction, inclusive reaction [photon p], transverse momentum: differential cross section, +J%2Fpsi%283100%29+anything%22">electron p --> J/psi(3100) anything, ddc:530, channel cross section: energy dependence, J/psi(3100) [electroproduction], J/psi(3100): electroproduction, colliding beams [electron p], DESY DESY HERA Stor Stor, photoproduction: J/psi(3100), electron p [colliding beams], energy dependence [channel cross section], J/psi(3100) [leptonic decay], electroproduction [J/psi(3100)], colliding beams: electron p, J/psi(3100): leptonic decay, electron p: colliding beams, differential cross section: transverse momentum, H1, momentum transfer: spectrum, spectrum [momentum transfer], leptonic decay [J/psi(3100)], photon p: inclusive reaction, inclusive reaction [electron p], experimental results
Abstract

13 pp. (1994)., We present a study of J ψ meson production in collisions of 26.7 GeV electrons with 820 GeV protons, performed with the H1-detector at the HERA collider at DESY. The J ψ mesons are detected via their leptonic decays both to electrons and muons. Requiring exactly two particles in the detector, a cross section of σ(ep → J ψ X) = (8.8±2.0±2.2) nb is determined for 30 GeV ≤ W γp ≤ 180 GeV and Q 2 ≲ 4 GeV 2 . Using the flux of quasi-real photons with Q 2 ≲ 4 GeV 2 , a total production cross section of σ ( γp → J / ψX ) = (56±13±14) nb is derived at an average W γp =90 GeV. The distribution of the squared momentum transfer t from the proton to the J ψ can be fitted using an exponential exp(− b ∥ t ∥) below a ∥ t ∥ of 0.75 GeV 2 yielding a slope parameter of b = (4.7±1.9) GeV −2 .

Published
1994
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