Summary
We discuss the role of multiple parton scattering subprocesses in the context of large-calorimeter experiments on large-p T jet production in hadronic collisions. We find that these processes can give appreciable effects even at the largest presently observed transverse energies.
Riassunto
Si discute il ruolo dello scattering multiplo dei partoni nel contesto di esperimenti con calorimetri di grande apertura sulla produzione adronica di jet ad altop T. Si trova che tali processi possono dare effetti apprezzabili anche alle massime energie trasverse osservate.
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References
J. Dress:Proceedings of the 1981 International Symposium on Lepton and Photon Interactions at High Energies, edited byW. Pfeil, and references therein.
M. Jacob andP. V. Ladshoff:Phys. Rep.,48, 285 (1978).
R. P. Feynman, R. D. Field andG. C. Fox:Phys. Rev. D,18, 3320 (1978);J. F. Owens andJ. D. Kimel:Phys. Rev. D,18, 3313 (1978).
H. D. Politzer:Nucl. Phys. B,172, 349 (1980).
W. Furmanski andR. Petronzio: CERN preprint TH 3046 (1982).
C. De Marso, M. De Palma, A. Distante, C. Favuzzi, G. Germinario, P. Lavopa, G. Maggi, F. Posa, A. Ranieri, G. Selvaggi, P. Spinelli, F. Waldner, A. Bialas, W. Czyz, T. Coghen, A. Eskreys, D. Kisielewska, P. Malecki, K. Olkiewicz, K. Sliwa, P. Stopa, W. H. Evans, J. R. Fry, C. Grant, M. Houlden, A. Morton, H. Muirhead, J. Shiers, M. Antic, W. Baker, H. Bechteler, I. Derado, V. Eckardt, J. Fent, P. Freund, H. J. Gebauer, T. Kabhil, R. Kalbach, A. Manz, R. Meinke, P. Polakos, K. P. Pretzl, N. Schmitz, P. Seyboth, J. Seyerlein, D. Vranic, G. Wolf, F. Crijns, W. Metzger, C. Pols, T. Spuijbrolk, N. Sarma andT. Schouten:Phys. Lett. B,112, 173 (1982).
W. J. Metzger: preprint HEN 217 (October, 1981), Nijmegen.
G. C. Fox andR. L. Kelly: preprint LBL 13985 (1982).
About this point one can notice an important qualitative difference in the present available large-p T calorimeter data at √s=√600 GeV (6,7) and √s=63 GeV (7). In the first case, comparing dσ/dΣ|p T| observed with a calorimeterC 1: Δϑ=π/2, Δϕ=2π, and with a calorimeterC 2: Δϑ=π/2, Δϕ=π/2 (in the c.m.s.), one will see that
while in the latter case
Unfortunately ISR data (7) are available only in a much limited range ofx
T and, therefore, the above observation can be taken only as an indication, rather than an evidence, of important scale-breaking contributions still effective in the regime of the experiment in ref. (6).P. V. Landshoff andJ. C. Polkinghorne:Phys. Rev. D,18, 3344 (1978).
P. V. Landshoff:Phys. Rev. D,10, 1024 (1974).
P. V. Landshoff andD. J. Pritchard:Z. Phys. C,6, 69 (1980);G. P. Lepage andS. J. Brodsky:Phys. Rev. D,22, 2157 (1980).
N. Paver andD. Treleani:Nuovo Cimento A,70, 215 (1982).
M. Glück, E. Hoffmann andE. Reya:Z. Phys. C,13, 119 (1982).
R. M. Barnett: SLAC-PUB-2907 (1982).
R. D. Field andR. P. Feynman:Phys. Rev. D,15, 2590 (1977).
while in the latter case
Unfortunately ISR data (7) are available only in a much limited range ofx
T and, therefore, the above observation can be taken only as an indication, rather than an evidence, of important scale-breaking contributions still effective in the regime of the experiment in ref. (6).Author information
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Paver, N., Treleani, D. Relevance of scale-breaking terms in large-p T calorimeter measurements. Nuov Cim A 73, 392–402 (1983). https://doi.org/10.1007/BF02724238
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DOI: https://doi.org/10.1007/BF02724238