Production of low transverse energy clusters in collisions at √s=0.2–0.9 TeV and their interpretation in terms of QCD jets

Albajar, C.; Albrow, M.; Allkofer, O. C.; Astbury, A.; Aubert, B.; Axon, T.; Bacci, C.; Bacon, T. C.; Bains, N.; Batley, J. R.; Bauer, G.; Beingessner, S.; Bettini, A.; Bézaguet, A.; Bonino, R.; Bos, K.; Buckley, E.; Busetto, G.; Catz, P.; Cennini, P.; Centro, S.; Ceradini, F.; Charlton, D. G.; Ciapetti, G.; Cittolin, S.; Clarke, D.; Cline, D.; Cochet, C.; Colás, J.; Colas, P.; Corden, M.; Coughlan, J. A.; Cox, G.; Dau, D.; Debrion, J. P.; Degiorgi, M.; Negra, M. Della; Demoulin, M.; Denegri, D.; Diciaccio, A.; Hedo, F. J. Diez; Dobrzyński, L.; Dorenbosch, J.; Dowell, J. D.; Duchovini, E.; Eggert, E.; Eisenhandler, E.; Ellis, N.; Erhard, P.; Faissner, H.; Fensome, I. F.; Fernando, Ashen; Fincke-Keeler, M.; Flynn, Phil; Fontaine, G.; Garvey, J.; Gee, D.; Geer, S.; Geiser, A.; Ghesquière, C.; Ghez, Ph.; Ghiglino, C.; Giraud‐Héraud, Y.; Givernaud, A.; Gonidec, A.; Grassmann, H.; Gregory, Jonathan M.; Haynes, W.J.; Haywood, S. J.; Holthuizen, D.; Ikeda, M.; Jank, W.; Jimack, M.; Jorat, G.; Joyce, D.; Kalmus, P. I. P.; Karimäki, V.; Keeler, R.; Kenyon, I. R.; Kernan, A.; Khan, A.; Kienzle, W.; Kinnunen, R.; Krammer, M.; Kroll, J.; Kryn, D.; Lacava, F.; Landon, M. P. J.; Lees, J. P.; Leuchs, R.; Levegrün, S.; Li, S.; Lindgren, M.; Linglin, D.; Lipa, P.; Locci, E.; Markiewicz, T.; Markou, C.; Markytan, M.; Marquina, M. A.; Maurin, G.; Mendiburu, J. P.; Meneguzzo, A. T.; Merlo, J.-P.; Meyer, T. C.; Minard, M.-N.; Mohammadi, M.; Morgan, K.; Moricca, M.; Moser, H. G.; Moulin, André; Mours, B.; Müller, Th.; Naumann, L.; Nédélec, P.; Nisati, A.; Norton, A.; Pancheri, G.; Pauß, F.; Perault, C.; Petrolo, E.; Mortari, G. Piano; Pietarinen, E.; Pigot, C.; Pimiä, M.; Placci, A.; Porte, J. P.; Preischl, M.; Radermacher, E.; Redelberger, T.; Reithler, H.; Revol, J. P.; Robinson, D.; Rodrigo, T.; Rohlf, J.; Rossi, Paolo; Rubbia, C.; Sajot, G.; Salvini, G.; Sass, J.; Samyn, D.; Schinzel, D.; Schröder, M.; Schwartz, A. J.; Scott, W. G.; Seez, C.; Shah, T.; Sheer, I.; Siotis, I.; Smith, D.; Sobie, R.; Sphicas, P.; Strauss, J.; Streets, J.; Stubenrauch, C.; Summers, D.; Sumorok, K.; Szoncsó, F.; Tao, C.; Taurok, A.; Have, I. ten; Tether, S.; Thompson, G.; Tscheslog, E.; Tuominiemi, J.; Guchte, W. van de; Dijk, Albert van; Eijk, B. Van; Vialle, J.P.; Villaseñor, L.; Virdee, T.; Schlippe, W. von; Vrána, J.; Vuillemin, V.; Wacker, K.; Walzel, G.; Wildish, A.; Wingerter, Isabelle; Wimpenny, S.; Wu, X.; Wulz, C.-E.; Wyatt, T. R.; Yvert, M.; Zaccardelli, C.; Zacharov, I.; Zaganidis, N.; Zanello, L.; Zotto, P.

doi:10.1016/0550-3213(88)90450-6

Cited by 168 publications

(120 citation statements)

References 43 publications

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“…At higher energies, semihard interactions arising from the hard scattering of partons that carry only a very small fraction of the momenta of their parent hadrons can compete successfully with soft processes [52][53][54][55][56][57][58][59]. These semihard interactions lead to the minijet phenomenon, i.e., jets with transverse energy (E T = |p T |) much smaller than the total center-of-mass energy.…”

Section: Hadronic Processesmentioning

confidence: 99%

High energy physics in the atmosphere: phenomenology of cosmic ray air showers

et al. 2004

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The properties of cosmic rays with energies above 10 6 GeV have to be deduced from the spacetime structure and particle content of the air showers which they initiate. In this review we summarize the phenomenology of these giant air showers. We describe the hadronic interaction models used to extrapolate results from collider data to ultra high energies, and discuss the prospects for insights into forward physics at the LHC. We also describe the main electromagnetic processes that govern the longitudinal shower evolution, as well as the lateral spread of particles. Armed with these two principal shower ingredients and motivation from the underlying physics, we provide an overview of some of the different methods proposed to distinguish primary species. The properties of neutrino interactions and the potential of forthcoming experiments to isolate deeply penetrating showers from baryonic cascades are also discussed. We finally venture into a terra incognita endowed with TeV-scale gravity and explore anomalous neutrino-induced showers.

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Section: Hadronic Processesmentioning

confidence: 99%

High energy physics in the atmosphere: phenomenology of cosmic ray air showers

et al. 2004

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“…1 we compare the distributions GRV98, MRST98 and CTEQ6-L. We can see that in the small x region they start to be very different from each other. Using these parametrization in (1) we have computed the corresponding mini-jet cross sections and compared them with the experimental data [14], as shown in Fig. 2.…”

Section: The Eikonal Mini-jet Modelmentioning

confidence: 99%

“…We have updated previous versions of the EMM in some aspects: we have used more recent versions of the standard gluon parametrizations; we have used the measured mini-jet cross sections [14] to improve the fit and we tested (for the first time in this kind of model) the KLN distribution, which turns out to give the best description of data. This first success suggests that, after the proper incorporation of the DGLAP evolution, which was not included here, the KLN distribtuion may become competitive to the study of total hadronic cross sections in the very high energy limit.…”

Section: Gluon Saturationmentioning

confidence: 99%

“…This is different from what is done in Refs. [4,5], where the information contained in mini-jet cross sections [14] is not used and all parameters are fixed together fitting the total cross sections. Of course, this conclusion should be better grounded after a least χ 2 fit, which we leave for the future.…”

Section: Gluon Saturationmentioning

confidence: 99%

“…The KLN distribution is designed to be valid at very low x and its most interesting feature is the comparatively mild behavior in the low x region. It has been used to study gluon (1) compared to pp total cross section data [14] production through the fusion g + g → g at lower scales Q 2 10 GeV 2 . We shall use the KLN distribution at much higher scales, Q 2 = x 1 x 2 s, GeV 2 and therefore we should perform the DGLAP evolution of (7).…”

Section: Gluon Saturationmentioning

confidence: 99%

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Gluon saturation and proton: anti-proton cross sections

Carvalho

Durães²,

Luna

2007

Braz. J. Phys.

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We study proton -anti-proton cross sections in the framework of an updated minijet eikonal model. We propose a different scheme for fixing the parameters, in which we make use of the measured minijet cross section. We compare the results obtained with the GRV98, MRST98, CTEQ6-L and KLN gluon distributions. The latter includes gluon saturation effects. We conclude that in the very high energy regime the use of the KLN distribution improves significantly the behavior of the cross sections. However this improvement is due to the shape of the KLN gluon density and has little to do with saturation effects.

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Jets and High Energy Heavy Ion Collisions

Wang

1993

Particle Production in Highly Excited Matter

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Production of low transverse energy clusters in collisions at √s=0.2–0.9 TeV and their interpretation in terms of QCD jets

Cited by 168 publications

References 43 publications

High energy physics in the atmosphere: phenomenology of cosmic ray air showers

High energy physics in the atmosphere: phenomenology of cosmic ray air showers

Gluon saturation and proton: anti-proton cross sections

Jets and High Energy Heavy Ion Collisions

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