Zobrazeno 1 - 10
of 1 133
pro vyhledávání: '"A. Levati"'
Autor:
Bresciani, Luigi C., Brunello, Giacomo, Levati, Gabriele, Mastrolia, Pierpaolo, Paradisi, Paride
We consider the renormalization group equations of axion-like particle effective field theories and determine the corresponding anomalous dimensions at one loop via on-shell and unitarity-based methods. The calculation of the phase-space cut-integral
Externí odkaz:
http://arxiv.org/abs/2412.04160
Autor:
Levati, Valerio, Vitali, Matteo, Del Giacco, Andrea, Pellizzi, Nicola, Silvani, Raffaele, Mavilla, Luca Ciaccarini, Madami, Marco, Biancardi, Irene, Girardi, Davide, Panzeri, Matteo, Florio, Piero, Breitbach, David, Pirro, Philipp, Rovatti, Ludovica, Lecis, Nora, Maspero, Federico, Bertacco, Riccardo, Corrielli, Giacomo, Osellame, Roberto, Russo, Valeria, Bassi, Andrea Li, Tacchi, Silvia, Petti, Daniela, Albisetti, Edoardo
The exceptional magnetic, optical and phononic properties of Yttrium Iron Garnet (YIG) make it unique for spin-wave based and photonic applications. Yet, nanostructuring crystalline YIG and manipulating its magnetism in a non-destructive way is an ou
Externí odkaz:
http://arxiv.org/abs/2409.17722
Beyond Standard Model scenarios addressing the flavor puzzle and the hierarchy problem generally predict dominant new physics couplings with fermions of the third generation. In this Letter, we explore the collider and astrophysical signatures of new
Externí odkaz:
http://arxiv.org/abs/2407.18296
Autor:
Del Giacco, A., Maspero, F., Levati, V., Vitali, M., Albisetti, E., Petti, D., Brambilla, L., Polewczyk, V., Vinai, G., Panaccione, G., Silvani, R., Madami, M., Tacchi, S., Dreyer, R., Lake, S. R., Woltersdorf, G., Schmidt, G., Bertacco, Riccardo
The fabrication and integration of high-quality structures of Yttrium Iron Garnet (YIG) is critical for magnonics.Films with excellent properties are obtained only on single crystal Gadolinium Gallium Garnet (GGG) substrates using high-temperature pr
Externí odkaz:
http://arxiv.org/abs/2402.14444
We review the physics case for CP-violating axions. In the first part, we focus on the Quantum Chromodynamics (QCD) axion and argue that new sources of CP violation beyond QCD misalign the axion solution to the strong CP problem and can manifest them
Externí odkaz:
http://arxiv.org/abs/2312.17310
We elaborate on the application of on-shell and unitarity-based methods for evaluating renormalization group coefficients, and generalize this framework to account for the mixing of operators with different dimensions and leading mass effects. We der
Externí odkaz:
http://arxiv.org/abs/2312.05206
Publikováno v:
J. High Energ. Phys. 2024, 20 (2024)
We discuss the construction of the most general CP-violating chiral Lagrangian for an axion-like particle (ALP). Starting with an effective Lagrangian containing light quarks and gluons, we provide its matching onto a chiral effective Lagrangian at $
Externí odkaz:
http://arxiv.org/abs/2311.12158
Autor:
Battistelli, E. S., Barbavara, E., de Bernardis, P., Cacciotti, F., Capalbo, V., Carbone, A., Carretti, E., Ciccalotti, D., Columbro, F., Coppolecchia, A., Cruciani, A., D'Alessandro, G., De Petris, M., Govoni, F., Isopi, G., Lamagna, L., Levati, E., Marongiu, P., Mascia, A., Masi, S., Molinari, E., Murgia, M., Navarrini, A., Novelli, A., Occhiuzzi, A., Orlati, A., Pappalardo, E., Paiella, A., Pettinari, G., Piacentini, F., Pisanu, T., Poppi, S., Porceddu, I., Ritacco, A., Schirru, M. R., Vargiu, G. P.
Galaxy clusters and surrounding medium, can be studied using X-ray bremsstrahlung emission and Sunyaev Zel'dovich (SZ) effect. Both astrophysical probes, sample the same environment with different parameters dependance. The SZ effect is relatively mo
Externí odkaz:
http://arxiv.org/abs/2310.18029
In this work, we construct the chiral Lagrangian for a light spin-1 boson $X$ possessing both vectorial and axial couplings to the light Standard Model quarks $u, d, s$. We then use it in order to describe the tree-level, model-independent contributi
Externí odkaz:
http://arxiv.org/abs/2309.07052
We discuss the construction of the chiral Lagrangian for a light spin-1 boson, here denoted as $X$, featuring both vector and axial-vector couplings to light $u,d,s$ quarks. Focusing on $\Delta S = 1$ transitions, we show that there are model-indepen
Externí odkaz:
http://arxiv.org/abs/2308.05215