Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Giuseppe Marchesini"'
Autor:
Giuseppe Marchesini, Alfred H. Mueller
Publikováno v:
Journal of High Energy Physics
We introduce two processes where the BMS equation appears in a context quite different from the original context of non-global jet observables. We note the strong similarities of the BMS equation to the BK and FKPP equations and argue that these, ess
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa604926ee1c8137ff2b7413c045dd76
https://doi.org/10.1007/jhep02(2016)010
https://doi.org/10.1007/jhep02(2016)010
Publikováno v:
Physics Letters B. 652:194-202
We consider the bosonic sl ( 2 ) sector of the maximally supersymmetric N = 4 SYM model and show that anomalous dimension of the twist-3 single-trace composite operators built of scalar fields, recently calculated up to the four-loop order, can be ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92bf4cf1f87930ae96c6f733c073d264
https://doi.org/10.1016/j.physletb.2007.07.016
https://doi.org/10.1016/j.physletb.2007.07.016
Autor:
Yu.L. Dokshitzer, Giuseppe Marchesini
Publikováno v:
Physics Letters B
Physics Letters B, Elsevier, 2007, 646, pp.189
Physics Letters B, 2007, 646, pp.189
Physics Letters B, Elsevier, 2007, 646, pp.189
Physics Letters B, 2007, 646, pp.189
We construct universal parton evolution equation that produces space- and time-like anomalous dimensions for the maximally super-symmetric N=4 Yang--Mills field theory model, and find that its kernel satisfies the Gribov--Lipatov reciprocity relation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70d380c2e3e28c1990f8557e8128a126
https://doi.org/10.1016/j.physletb.2007.01.016
https://doi.org/10.1016/j.physletb.2007.01.016
Autor:
Giuseppe Marchesini, Enrico Onofri
It has been recently found that the heavy quark-antiquark QQbar pair multiplicity, in certain phase space region (QQbar at short distance, soft and with small velocity), satisfies an evolution equation formally similar to the BFKL equation for the hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f861fd3da30b20714103ab4676217b8b
http://www.openaccessrepository.it/record/15720
http://www.openaccessrepository.it/record/15720
Autor:
Alfred H. Mueller, Giuseppe Marchesini
Publikováno v:
Physics Letters B. 575:37-44
We calculate $e^+e^- \to Q\bar{Q}(k) + anything in a certain momentum, k, region for heavy quark-antiquark (Q\bar{Q})production. In our chosen region we find that the number of heavy quark pairs produced is determined by BFKL dynamics and the energy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e38462513440de1635007cf530a67d00
https://doi.org/10.1016/j.physletb.2003.09.041
https://doi.org/10.1016/j.physletb.2003.09.041
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 121:137-140
We introduce the azimuthal correlation for the deep inelastic scattering process. We present the QCD prediction to the level of next-to-leading log resummation, matching to the fixed order prediction. We also estimate the leading non-perturbative pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f3e828d7e7a68066fced51f19497087
https://doi.org/10.1016/s0920-5632(03)01829-2
https://doi.org/10.1016/s0920-5632(03)01829-2
Publikováno v:
Physics Letters B. 508:269-278
We present the results of QCD analysis of out-of-event-plane momentum distribution in 3-jet e+e- annihilation events. We consider the all-order resummed perturbative prediction and the leading power suppressed non-perturbative corrections to the mean
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f4709df2fd311947697301955bd5eed
https://doi.org/10.1016/s0370-2693(01)00310-0
https://doi.org/10.1016/s0370-2693(01)00310-0
Autor:
Giuseppe Marchesini
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 71:85-89
In this talk I summarize the two-loop analysis of the 1Q power corrections to jet-shape variables done in collaboration with Yu. Dokshitzer, A. Lucenti and G. Salam. We show that the one-loop result is modified by a rescaling factor (the Milan factor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::921e2ed120c4c21ddf90d377ce8fd728
https://doi.org/10.1016/s0920-5632(98)00327-2
https://doi.org/10.1016/s0920-5632(98)00327-2
Publikováno v:
Nuclear Physics B. 538:235-248
We describe a new method in lattice field theory to compute observables at various values of the parameters lambda_i in the action S[phi,lambda_i]. Firstly one performs a single simulation of a ``reference action'' S[phi^r, lambda_i^r] with fixed lam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e2e2dd546864ad1cb841070caf4180d
https://doi.org/10.1016/s0550-3213(98)00676-2
https://doi.org/10.1016/s0550-3213(98)00676-2
Publikováno v:
Nuclear Physics B. 497:435-442
We analyze the perturbative expansion of a condensate in the O(N) non-linear sigma model for large N on a two dimensional finite lattice. On an infinite volume this expansion is affected by an infrared renormalon. We extrapolate this analysis to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98c47fdbe897abdfa0a53e1e80b5a393
https://doi.org/10.1016/s0550-3213(97)00243-5
https://doi.org/10.1016/s0550-3213(97)00243-5