2.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of MilanIT3.7k papers
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- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.4k papers
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- University of EdinburghGB2.2k papers
- National Institute for Subatomic PhysicsNL2.2k papers
- University of ManchesterGB2.2k papers
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23 papers · 2 filters
QCD analysis of first b cross section data at 1.96 TeV
M. Cacciari, S. Frixione, M. L. Mangano +2
The first data on bottom quark production in p-pbar collisions at 1.96 TeV have recently been obtained by the CDF collaboration. These data probe the region of pt~0, providing a ne…
A "BPS expansion" for B and D mesons
Nikolai Uraltsev
We analyze consequences of the approximation μ_π^2 -μ_G^2 << μ_π^2 (a `BPS' limit) for B and D mesons. It is shown that neglecting perturbative effects many power corrections would…
Light mesons and infrared behavior of the running coupling constant in QCD
M. Baldicchi, G. M. Prosperi
A previous method for handling bound states in QCD is briefly revisited. Taking advantage of the Feynman-Schwinger representation for the iterated quark propagator in an external f…
Inclusive Quarkonium Decays
Nora Brambilla
I review recent progress in the calculation of inclusive quarkonium decays in the framework of QCD nonrelativistic effective field theories and in relation to the experimental meas…
BFKL Dynamics in Jet Evolution
G. Marchesini, A. H. Mueller
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 hea…
Perturbative and non-perturbative aspects of heavy-quark fragmentation
Einan Gardi, Matteo Cacciari
We describe a new approach to heavy-quark fragmentation which is based on a resummed perturbative calculation and parametrization of power corrections, concentrating on the z -> 1…
On Extracting Heavy Quark Parameters from Moments with Cuts
I. I. Bigi, N. Uraltsev
We point out that applying the photon energy cut significantly modifies the moments of energy spectrum in B->X_s+gamma decays, with a certain class of effects not accounted for in…
An anomalous dimension for small x evolution
Guido Altarelli, Richard D. Ball, Stefano Forte
We construct an anomalous dimension for small x evolution which goes beyond standard fixed order perturbative evolution by including resummed small x logarithms deduced from the le…
The $\sqrt{mΛ_{QCD}$ scale in heavy quarkonium
N. Brambilla, A. Pineda, J. Soto +1
We investigate the effects produced by the three-momentum scale in the strong coupling regime of heavy quarkonium. We compute the leading non-vanishing contributi…
Recent results on charm from E831-FOCUS
Daniele Pedrini
E831-FOCUS is a photoproduction experiment which collected data during the 1996/1997 fixed target run at Fermilab. More than 1 million charm particles have been reconstructed. Usin…
Sudakov resummation of multiparton QCD cross sections
R. Bonciani, S. Catani, M. L. Mangano +1
We present the general expressions for the resummation, up to next-to-leading logarithmic accuracy, of Sudakov-type logarithms in processes with an arbirtrary number of hard-scatte…
Two-loop renormalization of the electric charge in the Standard Model
Giuseppe Degrassi, Alessandro Vicini
We discuss the renormalization of the electric charge at the two-loop level in the Standard Model of the electroweak interactions. We explicitly calculate the expression of the com…
Charm Cross Sections for the Tevatron Run II
Matteo Cacciari, Paolo Nason
We present a calculation of the D^{*+}, D^+ and D^0 meson single inclusive production cross section for the Tevatron Run II. We use the FONLL approach in perturbative QCD, which, b…
Soft-gluon resummation for Higgs boson production at hadron colliders
S. Catani, D. de Florian, M. Grazzini +1
We consider QCD corrections to Higgs boson production through gluon--gluon fusion in hadron collisions. We compute the cross section, performing the all-order resummation of multip…
The approach to thermalization in the classical phi^4 theory in 1+1 dimensions: energy cascades and universal scaling
D. Boyanovsky, C. Destri, H. J. de Vega
We study the dynamics of thermalization and the approach to equilibrium in the classical phi^4 theory in 1+1 spacetime dimensions. At thermal equilibrium we exploit the equivalence…
Matching NLO QCD and parton showers in heavy flavour production
S. Frixione, P. Nason, B. R. Webber
We apply the MC@NLO approach to the process of heavy flavour hadroproduction. MC@NLO is a method for matching next-to-leading order (NLO) QCD calculations and parton shower Monte C…
On a possible measurement of alpha_s from B-Bbar correlations in Z^0 decay
A. Brandenburg, P. Nason, C. Oleari
Motivated by recent preliminary results from the SLD Collaboration on the measurement of angle-dependent B-Bbar energy correlations in Z^0 -> b bbar events, we propose a class of o…
Generalized resummation of QCD final-state observables
A. Banfi, G. P. Salam, G. Zanderighi
The resummation of logarithmically-enhanced terms to all perturbative orders is a prerequisite for many studies of QCD final-states. Until now such resummations have always been pe…
On large angle multiple gluon radiation
Yu. L. Dokshitzer, G. Marchesini
Jet shape observables which involve measurements restricted to a part of phase space are sensitive to multiplication of soft gluon with large relative angles and give rise to speci…
The t-tbar cross-section at 1.8 and 1.96 TeV: a study of the systematics due to parton densities and scale dependence
M. Cacciari, S. Frixione, M. L. Mangano +2
We update the theoretical predictions for the t-tbar production cross-section at the Tevatron, taking into account the most recent determinations of systematic uncertainties in the…
Imprecated, yet Impeccable: On the Theoretical Evaluation of Gamma(B -> X_c \ell ν)
D. Benson, I. I. Bigi, Th. Mannel +1
We present a detailed evaluation of the total semileptonic B meson width in terms of |V_{cb}| and heavy quark parameters (quark masses and the expectation values of local heavy qua…
Infrared behavior of the running coupling constant and quarkonium spectrum
M. Baldicchi, G. M. Prosperi
We study the effect of the infrared behavior of the running coupling constant on the quark-antiquark spectrum.
Heavy-Quark Fragmentation
Matteo Cacciari, Einan Gardi
We study perturbative and non-perturbative aspects of heavy-quark fragmentation into hadrons, emphasizing the large-x region, where x is the energy fraction of the detected hadron.…