380 citations · 4.5k across the 79 of their papers we have counts for
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Electroweak Evolution Equations and Isospin Conservation
Paolo Ciafaloni, Giampaolo Co', Dimitri Colferai +1
In processes taking place at energies much higher than the weak scale, electroweak corrections can be taken into account by using electroweak evolution equations, that are analogou…
Power suppressed corrections show new features of infrared cancellations
Paolo Ciafaloni, Denis Comelli, Alfredo Urbano
The cancellation of infrared (IR) divergences is an old topic in quantum field theory whose main results are condensed into the celebrated Kinoshita-Lee-Nauenberg (KLN) theorem. In…
The Role of Electroweak Corrections for the Dark Matter Relic Abundance
Paolo Ciafaloni, Denis Comelli, Andrea De Simone +3
We analyze the validity of the theorems concerning the cancellation of the infrared and collinar divergences in the case of dark matter freeze-out in the early universe. In particu…
Electroweak bremsstrahlung for wino-like Dark Matter annihilations
Paolo Ciafaloni, Denis Comelli, Andrea De Simone +2
If the Dark Matter is the neutral Majorana component of a multiplet which is charged under the electroweak interactions of the Standard Model, its main annihilation channel is into…
Initial State Radiation in Majorana Dark Matter Annihilations
Paolo Ciafaloni, Marco Cirelli, Denis Comelli +3
The cross section for a Majorana Dark Matter particle annihilating into light fermions is helicity suppressed. We show that, if the Dark Matter is the neutral Majorana component of…
On the Importance of Electroweak Corrections for Majorana Dark Matter Indirect Detection
Paolo Ciafaloni, Marco Cirelli, Denis Comelli +3
Recent analyses have shown that the inclusion of electroweak corrections can alter significantly the energy spectra of Standard Model particles originated from dark matter annihila…
Weak Corrections are Relevant for Dark Matter Indirect Detection
Paolo Ciafaloni, Denis Comelli, Antonio Riotto +3
The computation of the energy spectra of Standard Model particles originated from the annihilation/decay of dark matter particles is of primary importance in indirect searches of d…
Anomalous Sudakov Form Factors
Marcello Ciafaloni, Paolo Ciafaloni, Denis Comelli
While radiative corrections of infrared origin normally depress high energy amplitudes (Sudakov form factors), we find that in some cases resummation of leading effects produces ex…
Electroweak double-logs at small x
M. Ciafaloni, P. Ciafaloni, D. Comelli
We investigate enhanced EW corrections to inclusive hard processes in the TeV energy region with emphasis on the small-x situation, in which the hard scale Q is significantly small…
The Importance of Weak Bosons Emission at LHC
Paolo Ciafaloni, Denis Comelli
We point out that gauge bosons emissions should be carefully estimated when considering LHC observables, since real and contributions can dramatically change cross sectio…
Electroweak Evolution Equations
Paolo Ciafaloni, Denis Comelli
Enlarging a previous analysis, where only fermions and transverse gauge bosons were taken into account, we write down infrared-collinear evolution equations for the Standard Model…
Sudakov Electroweak effects in transversely polarized beams
P. Ciafaloni, D. Comelli, A. Vergine
We study Standard Model electroweak radiative corrections for fully inclusive observables with polarized fermionic beams. Our calculations are relevant in view of the possibility f…
Dark Energy and Dark Matter
D. Comelli, M. Pietroni, A. Riotto
It is a puzzle why the densities of dark matter and dark energy are nearly equal today when they scale so differently during the expansion of the universe. This conundrum may be so…
Towards Collinear Evolution Equations in Electroweak Theory
M. Ciafaloni, P. Ciafaloni, D. Comelli
We consider electroweak radiative corrections to hard inclusive processes at the TeV scale, and we investigate how collinear logarithms factorize in a spontaneously broken gauge th…
TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
R. -D. Heuer, D. J. Miller, F. Richard +236
The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
Enhanced Electroweak Corrections to Inclusive Boson Fusion Processes at the TeV Scale
Marcello Ciafaloni, Paolo Ciafaloni, Denis Comelli
Electroweak radiative corrections with double-log enhancements occur in inclusive observables at the TeV scale because of a lack of compensation of virtual corrections with real em…
Bloch-Nordsieck Violation in Spontaneously Broken Abelian Theories
Marcello Ciafaloni, Paolo Ciafaloni, Denis Comelli
We point out that, in a spontaneously broken U(1) gauge theory, inclusive processes, whose primary particles are mass eigenstates that do not coincide with the gauge eigenstates, a…
The abundance of relativistic axions in a flaton model of Peccei-Quinn symmetry
Eung Jin Chun, Denis Comelli, David H. Lyth
Flaton models of Peccei-Quinn symmetry have good particle physics motivation, and are likely to cause thermal inflation leading to a well-defined cosmology. They can solve the …
The Early Mirror Universe: Inflation, Baryogenesis, Nucleosynthesis and Dark Matter
Zurab Berezhiani, Denis Comelli, Francesco L. Villante
There can exist a parallel `mirror' world which has the same particle physics as the observable world and couples the latter only gravitationally. The nucleosynthesis bounds demand…
Electroweak double logarithms in inclusive observables for a generic initial state
M. Ciafaloni, P. Ciafaloni, D. Comelli
High energy observables are characterized by large electroweak radiative corrections of infrared origin; double logarithms are present even for inclusive cross sections, thus viola…
Electroweak Bloch-Nordsieck violation at the TeV scale: "strong" weak interactions ?
M. Ciafaloni, P. Ciafaloni, D. Comelli
Hard processes at the TeV scale exhibit enhanced (double log) EW corrections even for inclusive observables, leading to violation of the Bloch-Nordsieck theorem. This effect, previ…
Bloch-Nordsieck violating electroweak corrections to inclusive TeV scale hard processes
M. Ciafaloni, P. Ciafaloni, D. Comelli
We point out that, since the colliders initial states (e+ e-,p p, p pbar, ... ) carry a definite nonabelian flavor, electroweak radiative corrections to inclusive hard cross sectio…
Electroweak Sudakov form factors and nonfactorizable soft QED effects at NLC energies
P. Ciafaloni, D. Comelli
We study the leading log infrared behavior of electroweak corrections at TeV scale energies, that will be reached by next generation of linear colliders (NLC). We show that, contra…
The role of the top mass in b-production at future lepton colliders
M. Beccaria, P. Ciafaloni, D. Comelli +2
We compute the one loop contribution coming from vertex and box diagrams, where virtual top quarks are exchanged, to the asymptotic energy behaviour of pair production at…