348 citations · 950 across the 25 of their papers we have counts for
11 papers · 1 filter
Spin Physics with a fixed-target experiment at the LHC
M. G. Echevarria, S. J. Brodsky, G. Cavoto +30
The multi-TeV proton and ion beams of the LHC would allow for the most energetic fixed-target experiment ever. In particular, , d and A collisions could be performed at $…
From identical S- and P-wave pT/M spectra to maximally distinct polarizations: probing NRQCD with chi states
Pietro Faccioli, Carlos Lourenco, Mariana Araujo +3
A global analysis of ATLAS and CMS measurements reveals that, at mid-rapidity, the directly-produced , and J/ mesons have differential cross sections of seeming…
Universal kinematic scaling as a probe of factorized long-distance effects in high-energy quarkonium production
Pietro Faccioli, Carlos Lourenco, Mariana Araujo +1
Dimensional analysis reveals general kinematic scaling rules for the momentum, mass, and energy dependence of Drell-Yan and quarkonium cross sections. Their application to mid-rapi…
Quarkonium production at the LHC: a data-driven analysis of NRQCD's predictions
Pietro Faccioli, Mariana Araújo, Valentin Knünz +3
While non-relativistic QCD (NRQCD) foresees a variety of elementary quarkonium production mechanisms naturally leading to state-dependent kinematic patterns, the LHC cross sections…
Quarkonium production at the LHC: a phenomenological analysis of surprisingly simple data patterns
Pietro Faccioli, Mariana Araújo, Valentin Knünz +3
The LHC quarkonium production measurements reveal a startling observation: the J/, (2S), and (nS) -differential cross sections are compatible with on…
Quarkonium production in the LHC era: a polarized perspective
Pietro Faccioli, Valentin Knuenz, Carlos Lourenco +2
Polarization measurements are usually considered as the most difficult challenge for the QCD description of quarkonium production. In fact, global data fits for the determination o…
Minimal physical constraints on the angular distributions of two-body boson decays
Pietro Faccioli, Carlos Lourenco, Joao Seixas +1
The angular distribution of the two-body decay of a boson of unknown properties is strongly constrained by angular momentum conservation and rotation invariance, as well as by the…
Observation of chi_c and chi_b nuclear suppression via dilepton polarization measurements
Pietro Faccioli, Joao Seixas
We demonstrate that it is possible to use the polarization of vector quarkonia, measured from dilepton event samples, as an instrument to study the suppression of chi_c and chi_b i…
Towards the experimental clarification of quarkonium polarization
Pietro Faccioli, Carlos Lourenco, Joao Seixas +1
We highlight issues which are often underestimated in the experimental analyses on quarkonium polarization: the relation between the parameters of the angular distributions and the…
A new approach to quarkonium polarization studies
Pietro Faccioli, Carlos Lourenco, Joao Seixas
Significant progress in understanding quarkonium production requires improved polarization measurements, fully considering the intrinsic multidimensionality of the problem. We prop…
Rotation-invariant relations in vector meson decays into fermion pairs
Pietro Faccioli, Carlos Lourenco, Joao Seixas
The rotational properties of angular momentum eigenstates imply the existence of a frame-independent relation among the parameters of the decay distribution of vector mesons into f…