Energy conservation constraints on multiplicity correlations in QCD jets
Tóm tắt
We compute analytically the effects of energy conservation on the self-similar structure of parton correlations in QCD jets. The calculations are performed both in the constant and running coupling cases. It is shown that the corrections are phenomenologically sizeable. On a theoretical ground, energy conservation constraints preserve the scaling properties of correlations in QCD jets beyond the leading log approximation.
Tài liệu tham khảo
Y. Dokshitzer and I. Dremin, Nuclear Physics B402, 139 (1993).
P. Brax, J.-L. Meunier, and R. Peschanski, Zeit. Phys. C62, 649 (1994); R. Peschanski, Multiparticle Dynamics 1992, World Scientific Ed., 1993.
W. Ochs and J. Wosiek, Phys. Lett. B305, 144 (1993).
Y. Dokshitzer, V. Khoze, A. Mueller, and S. Troyan, Basics of Perturbative QCD, Editions Frontieres, Paris, 1991.
F. Cuypers, Zeit. Phys. C54 (1992) 87; Y. Dokshitzer, Phys. Lett. B305, 295 (1993).
P.D. Acton et al., OPAL, Zeit. Phys. C53, 539 (1992).
D. Decamp et al., ALEPH, Zeit. Phys. B53, 21 (1992).
P. Abreu et al., DELPHI, Nucl. Phys. B386, 417 (1992).
Z. Koba, H. Nielsen, and P. Olesen, Nucl. Phys. B40, 317 (1972).
P. Duclos and J.-L. Meunier, Zeit. Phys. C64, 295 (1994); J.-L. Meunier, Soft Physics and Fluctuations, World Scientific Publishing Ed., 1993.
F. Mandl, Multiparticle Dynamics 1994, World Scientific Ed., 1994.