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8 results on '"jet: particle identification"'

1. Study of jet shapes in inclusive jet production in pp collisions at root s=7 TeV using the ATLAS detector

Author

Çetin, Serkant Ali, ATLAS Collaboration, ATLAS (IHEF, IoP, FNWI), UAM. Departamento de Física Teórica, Doğuş Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümü, TR3959, and Çetin, Serkant Ali

Subjects
Astrophysics::High Energy Astrophysical Phenomena, ddc:500.2, Nucleus, High Energy Physics - Experiment, Settore FIS/04 - Fisica Nucleare e Subnucleare, Deep-Inelastic Scattering, Fragmentation, ddc:530, Nuclear Experiment, Calorimeter, Hera, Science & Technology, jet shapes, proton-proton collisions, Parton Distributions, Tests, Settore FIS/01 - Fisica Sperimentale, Física, QCD, Energies, jet: hadroproduction, parton: showers, jet: transverse momentum, fragmentation: model, effect: nonperturbative, quantum chromodynamics, underlying event, ATLAS, rapidity dependence, CERN LHC Coll, p p: inclusive reaction, event shape analysis, jet: particle identification, experimental results, Monte Carlo, +jet+anything%22">p p --> jet anything, 7000 GeV-cms, Photoproduction, Col·lisions (Física nuclear), High Energy Physics::Experiment, Física nuclear, Particle Physics - Experiment
Abstract

Jet shapes have been measured in inclusive jet production in proton-proton collisions at √s=7 TeV using 3 pb−1 of data recorded by the ATLAS experiment at the LHC. Jets are reconstructed using the anti-kt algorithm with transverse momentum 30 GeV2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG, and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP, and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF, and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular, from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK), and BNL (USA) and in the Tier-2 facilities worldwide. info:eu-repo/semantics/publishedVersion

Published
2011

2. Three jet events in deep inelastic scattering

Author

Krumnack, Nils

Subjects
perturbation theory [quantum chromodynamics], multiple production [jet], neutral current, transverse energy [differential cross section], rapidity dependence, strong interaction: coupling constant, (2jet) [final state], jet: multiple production, deep inelastic scattering [positron p], differential cross section: transverse energy, quantum chromodynamics: perturbation theory, ratio [channel cross section], 318 GeV-cms, jet: particle identification, momentum transfer: dependence, final state: (3jet), positron p: deep inelastic scattering, ZEUS [magnetic detector], thesis, (3jet) [final state], particle identification [jet], dependence [momentum transfer], positron p: colliding beams, final state: (2jet), colliding beams [positron p], DESY HERA Stor, magnetic detector: ZEUS, coupling constant [strong interaction], channel cross section: ratio, experimental results
Abstract

Universität Hamburg, Diss., 2004; 136 pp., (2004). doi:10.3204/DESY-THESIS-2004-011, Published by Deutsches Elektronen-Synchrotron, DESY, Hamburg

Published
2004

3. Experimental studies of unbiased gluon jets from $\mathrm{e^+ e^−}$ annihilations using the jet boost algorithm

Author

Abbiendi, G., Ainsley, C., Akesson, P. F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K. J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R. J., Batley, R. J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P. J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Boeriu, O., Bock, P., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H. J., Campana, S., Carnegie, R. K., Caron, B., Carter, A. A., Carter, J. R., Chang, C. Y., Charlton, David G., Csilling, A., Cuffiani, M., Dado, S., De Roeck, A., De Wolf, E. A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I. P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P. O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G. G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hawkes, C. M., Hawkings, R., Hemingway, R. J., Hensel, C., Herten, G., Heuer, R. D., Hill, J. C., Hoffman, Kara Dion, Horvath, D., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T. R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kawagoe, K., Kawamoto, T., Keeler, R. K., Kellogg, R. G., Kennedy, B. W., Kim, D. H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kormos, Laura L., Kramer, T., Krieger, P., Von Krogh, J., Kruger, K., Kuhl, T., Kupper, M., Lafferty, G. D., Landsman, H., Lanske, D., Layter, J. G., Leins, A., Lellouch, D., Letts, J., Levinson, L., Lillich, J., Lloyd, S. L., Loebinger, F. K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Martin, A. J., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W. J., McKenna, J., McMahon, T. J., McPherson, R. A., Meijers, F., Menges, W., Merritt, F. S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D. J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Nanjo, H., Neal, H. A., Nisius, R., O'Neale, S. W., Oh, A., Okpara, A., Oreglia, M. J., Orito, S., Pahl, C., Pasztor, G., Pater, J. R., Patrick, G. N., Pilcher, J. E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Roney, J. M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sarkisyan, E. K. G., Schaile, A. D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W. G., Seuster, R., Shears, T. G., Shen, B. C., Sherwood, P., Siroli, G., Skuja, A., Smith, A. M., Sobie, R., Soldner-Rembold, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R. J., Teuscher, R., Thomson, M. A., Torrence, E., Toya, D., Tran, P., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M. F., Ueda, I., Ujvari, B., Vollmer, C. F., Vannerem, P., Vertesi, R., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C. P., Ward, D. R., Warsinsky, M., Watkins, P. M., Watson, A. T., Watson, N. K., Wells, P. S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G. W., Wilson, J. A., Wolf, G., Wyatt, T. R., Yamashita, S., Zer-Zion, D., and Zivkovic, Lidija

Subjects
jet: particle identification, +quark+antiquark+gluon%22">Z0 --> quark antiquark gluon, OPAL, bibliography, CERN LEP Stor, electron positron: colliding beams, electron positron: annihilation, jet: transverse momentum, multiplicity: moment, fragmentation function, approx. 91 GeV-cms, charged particle: multiplicity, gluon: jet, color: dipole, multiplicity: spectrum, jet: energy, quark: jet, quantum chromodynamics: perturbation theory, Z0: hadronic decay, experimental results
Abstract

Physical review / D 69(3), 032002 (2004). doi:10.1103/PhysRevD.69.032002, We present the first experimental results based on the jet boost algorithm, a technique to select unbiased samples of gluon jets in e+e- annihilations, i.e. gluon jets free of biases introduced by event selection or jet finding criteria. Our results are derived from hadronic Z0 decays observed with the OPAL detector at the LEP e+e- collider at CERN. First, we test the boost algorithm through studies with Herwig Monte Carlo events and find that it provides accurate measurements of the charged particle multiplicity distributions of unbiased gluon jets for jet energies larger than about 5 GeV, and of the jet particle energy spectra (fragmentation functions) for jet energies larger than about 14 GeV. Second, we apply the boost algorithm to our data to derive unbiased measurements of the gluon jet multiplicity distribution for energies between about 5 and 18 GeV, and of the gluon jet fragmentation function at 14 and 18 GeV. In conjunction with our earlier results at 40 GeV, we then test QCD calculations for the energy evolution of the distributions, specifically the mean and first two non-trivial normalized factorial moments of the multiplicity distribution, and the fragmentation function. The theoretical results are found to be in global agreement with the data, although the factorial moments are not well described for jet energies below about 14 GeV., Published by Inst., Woodbury, NY

Published
2004
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4. An approach to a structure of the virtual photon using dijet events at HERA

Author

Labes, Harald

Subjects
perturbation theory [quantum chromodynamics], approx. 300 GeV-cms, pair production [jet], exchange [photon], transverse energy: dependence, x-dependence, rapidity dependence, jet: transverse energy, differential cross section: momentum transfer, transverse energy [jet], track data analysis: cluster, photon: structure function, deep inelastic scattering [positron p], momentum transfer [differential cross section], quantum chromodynamics: perturbation theory, cluster [track data analysis], jet: particle identification, +2jet+positron+anything%22">positron p --> 2jet positron anything, positron p: deep inelastic scattering, photon: exchange, thesis, bibliography, particle identification [jet], ZEUS, positron p: colliding beams, colliding beams [positron p], parton [momentum spectrum], momentum spectrum: parton, structure function [photon], DESY HERA Stor, jet: pair production, dependence [transverse energy], experimental results
Abstract

Universität Hamburg, Diss., 2003; 192 pp., (2003). doi:10.3204/DESY-THESIS-2003-037, Published by Deutsches Elektronen-Synchrotron, DESY, Hamburg

Published
2003

5. Search for events with isolated leptons and large missing transverse momentum in ep collisions at HERA

Author

Dannheim, Dominik

Subjects
decay [top], electroproduction [W], transverse momentum: missing-energy, W: electroproduction, coupling constant: upper limit, top, W: leptonic decay, +W+bottom%22">top --> W bottom, +lepton+neutrino%22">W --> lepton neutrino, top: decay, validity test [electroweak interaction], 300: 318 GeV-cms, +W+electron+anything%22">electron p --> W electron anything, +top+electron+anything%22">electron p --> top electron anything, colliding beams [electron p], jet: particle identification, channel cross section, neutral current: flavor changing, thesis, 318 GeV-cms [300], bibliography, particle identification [jet], ZEUS, semileptonic decay [tau], upper limit [coupling constant], positron p: colliding beams, leptonic decay [W], colliding beams [positron p], DESY HERA Stor, electron p: colliding beams, final state [lepton], missing-energy [transverse momentum], lepton: final state, electroweak interaction: validity test, flavor changing [neutral current], tau: semileptonic decay, experimental results
Abstract

Universität Hamburg, Diss., 2003; 224 pp., (2003). doi:10.3204/DESY-THESIS-2003-025, Published by Deutsches Elektronen-Synchrotron, DESY, Hamburg

Published
2003

6. Identification of $\tau$ leptons from single W $\to \tau \nu_\tau$ production with the ZEUS detector

Author

Nguyen, Chi Nhan

Subjects
jet: particle identification, electroproduction [W], +tau+neutrino%2Ftau%22">W --> tau neutrino/tau, W: electroproduction, +W+electron+anything%22">positron p --> W electron anything, thesis, positron p: inclusive reaction, particle identification [jet], ZEUS, semileptonic decay [tau], W: leptonic decay, leptonic decay [W], positron p: colliding beams, charged current, colliding beams [positron p], inclusive reaction [positron p], DESY HERA Stor, +%28n%29hadron+neutrino%2Ftau%22">tau --> (n)hadron neutrino/tau, tau: semileptonic decay, experimental results
Abstract

Universität Hamburg, Diss., 2002; 96 pp., (2002). doi:10.3204/DESY-THESIS-2002-024, Published by Deutsches Elektronen-Synchrotron, DESY, Hamburg

Published
2002
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7. Two jets production in neutral current deep inelastic $e+ p$ interactions at 300-$GeV$ CMS energy

Author

Przybycien, Maciej

Subjects
jet: particle identification, channel cross section, neutral current, Lipatov equation, positron p: deep inelastic scattering, approx. 300 GeV-cms, thesis, gluon: momentum spectrum, bibliography, ZEUS, event shape analysis, model: parton, positron p: colliding beams, DESY HERA Stor, transverse energy: energy flow, correlation, differential cross section, jet: pair production, p: structure function, quantum chromodynamics: perturbation theory, experimental results
Abstract

Polish Academy of Sciences, Diss., 1999; 100 pp. (1999). = Polish Academy of Sciences, Diss., 1999

Published
1999
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8. Jet-Identifizierung in der tiefunelastischen ep-Streuung mittels neuronaler Netze

Author

Sievers, Michael

Subjects
electroproduction [jet], electron p: deep inelastic scattering, jet: particle identification, jet: electroproduction, DESY HERA Stor, neural network, deep inelastic scattering [electron p], thesis, particle identification [jet], ZEUS, numerical calculations, programming
Abstract

Universität Hamburg, Diplomarbeit, 1997; 79 pp. (1997). = Universität Hamburg, Diplomarbeit, 1997

Published
1997
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