|
1.
|
|
|
2.
|
Cornering Large-$N_c$ QCD with Positivity Bounds
/ Fernandez, Clara (Barcelona, IFAE ; BIST, Barcelona) ; Pomarol, Alex (Barcelona, IFAE ; BIST, Barcelona ; Barcelona, Autonoma U. ; CERN) ; Riva, Francesco (Geneva U., Dept. Theor. Phys.) ; Sciotti, Francesco (Barcelona, IFAE ; BIST, Barcelona)
The simple analytic structure of meson scattering amplitudes in the large-$N_c$ limit, combined with positivity of the spectral density, provides precise predictions on low-energy observables. Building upon previous studies, we explore the allowed regions of chiral Lagrangian parameters and meson couplings to pions. [...]
arXiv:2211.12488.-
2023-06-16 - 39 p.
- Published in : JHEP 2306 (2023) 094
Fulltext: 2211.12488 - PDF; document - PDF;
|
|
|
3.
|
Wilson Coefficients and Natural Zeros from the On-Shell Viewpoint
/ Delle Rose, Luigi (Barcelona, IFAE ; BIST, Barcelona) ; von Harling, Benedict (Barcelona, IFAE ; BIST, Barcelona) ; Pomarol, Alex (Barcelona, IFAE ; BIST, Barcelona ; Barcelona, Autonoma U. ; CERN)
We show how to simplify the calculation of the finite contributions from heavy particles to EFT Wilson coefficients by using on-shell methods. We apply the technique to the one-loop calculation of $g-2$ and $H\gamma\gamma$, showing how finite contributions can be obtained from the product of tree-level amplitudes. [...]
arXiv:2201.10572.-
2022-05-18 - 19 p.
- Published in : JHEP 2205 (2022) 120
Fulltext: Publication - PDF; 2201.10572 - PDF;
|
|
|
4.
|
|
|
5.
|
Light scalars: From the lattice to the LHC via holography
/ Pomarol, Alex (Barcelona U. ; Barcelona, IFAE ; BIST, Barcelona)
We study the conformal to non-conformal transition in strongly-coupled theories using holography, trying to understand the presence of light scalars as recent lattice simulations seem to suggest. This can have important implications for solutions to the hierarchy problem via TeV strong-dynamicsand their searches at the LHC..
SISSA, 2018 - 9 p.
- Published in : PoS CORFU2017 (2018) 061
Fulltext: PDF; External link: PoS server
In : Corfu2017: 17th Hellenic School and Workshops on Elementary Particle Physics and Gravity, Corfu, Attiki, Greece, 2 - 28 Sep 2017, pp.061
|
|
|
6.
|
Electroweak Precision Tests in High-Energy Diboson Processes
/ Franceschini, Roberto (Rome III U. ; INFN, Rome3) ; Panico, Giuliano (Barcelona, Autonoma U. ; Barcelona, IFAE) ; Pomarol, Alex (Barcelona, Autonoma U. ; Barcelona, IFAE) ; Riva, Francesco (CERN) ; Wulzer, Andrea (CERN ; ITPP, Lausanne ; Padua U. ; INFN, Padua)
A promising avenue to perform precision tests of the SM at the LHC is to measure differential cross-sections at high invariant mass, exploiting in this way the growth with the energy of the corrections induced by heavy new physics. We classify the leading growing-with-energy effects in longitudinal diboson and in associated Higgs production processes, showing that they can be encapsulated in four real "high-energy primary" parameters. [...]
arXiv:1712.01310; CERN-TH-2017-252; RM3-TH-17-1.-
2018-02-19 - 35 p.
- Published in : JHEP 02 (2018) 111
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
|
|
|
7.
|
|
|
8.
|
Future Direction Beyond the Standard Theory
/ Pomarol, Alex (Barcelona, Autonoma U.)
With the Higgs discovery, the full Standard Model (SM) has been experimentally established, and most of its sectors accurately tested. Nevertheless, the SM deeply relies in the presence of the Higgs, a spin-zero field, whose mass term is not expected, on theoretical grounds, to be much smaller than the Planck scale. [...]
2016
World Scientific Open Access article: PDF;
In : The standard theory of particle physics, pp.455-470
|
|
|
9.
|
Flavor hierarchies from dynamical scales
/ Panico, Giuliano (Barcelona, IFAE) ; Pomarol, Alex (Barcelona, IFAE ; CERN ; Barcelona, Autonoma U.)
One main obstacle for any beyond the SM (BSM) scenario solving the hierarchy problem is its potentially large contributions to electric dipole moments. An elegant way to avoid this problem is to have the light SM fermions couple to the BSM sector only through bilinears, $\bar ff$. [...]
arXiv:1603.06609; CERN-TH-2016-065; CERN-TH-2016-065.-
Geneva : CERN, 2016-07-20 - 25 p.
- Published in : JHEP 07 (2016) 097
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
|
|
|
10.
|
Patterns of Strong Coupling for LHC Searches
/ Liu, Da (Beijing, Inst. Theor. Phys. ; EPFL, Lausanne, LPTP) ; Pomarol, Alex (Barcelona, Autonoma U. ; Barcelona, IFAE ; CERN) ; Rattazzi, Riccardo (EPFL, Lausanne, LPTP) ; Riva, Francesco (CERN)
Even though the Standard Model (SM) is weakly coupled at the Fermi scale, a new strong dynamics involving its degrees of freedom may conceivably lurk at slightly higher energies, in the multi TeV range. Approximate symmetries provide a structurally robust context where, within the low energy description, the dimensionless SM couplings are weak, while the new strong dynamics manifests itself exclusively through higher-derivative interactions. [...]
arXiv:1603.03064; CERN-TH-2016-048; CERN-TH-2016-048.-
Geneva : CERN, 2016-11-23 - 39 p.
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
|
|
E-Mail-Benachrichtigung
oder abonnieren Sie den 
RSS Feed.