Zobrazeno 1 - 10
of 724
pro vyhledávání: '"A. Fuentes Martín"'
Functional methods can be applied to the quantum effective action to efficiently determine counterterms and matching conditions for effective field theories. We extend the toolbox to two-loop order and beyond and show how to evaluate the expansion of
Externí odkaz:
http://arxiv.org/abs/2412.12270
The next goalpost in precision calculations for physics beyond the Standard Model is determining the two-loop renormalization group (RG) equations in the Standard Model Effective Field Theory (SMEFT). We progress towards this goal by determining the
Externí odkaz:
http://arxiv.org/abs/2410.07320
Flavor deconstruction refers to ultraviolet completions of the Standard Model where the gauge group is split into multiple factors under which fermions transform non-universally. We propose a mechanism for charging same-family fermions into different
Externí odkaz:
http://arxiv.org/abs/2402.09507
Publikováno v:
Phys.Lett.B 851 (2024) 138557
We present a systematic method for determining the two-loop effective Lagrangian resulting from integrating out a set of heavy particles in an ultraviolet scalar theory. We prove that the matching coefficients are entirely determined from the (double
Externí odkaz:
http://arxiv.org/abs/2311.13630
Publikováno v:
JHEP 09 (2023) 120
In the presence of an axion or axion-like particle (ALP) that couples to the Standard Model via dimension-five interactions, dimension-six SMEFT interactions are generated via renormalization-group evolution. As many of these SMEFT contributions are
Externí odkaz:
http://arxiv.org/abs/2307.10372
Autor:
Aebischer, Jason, Fael, Matteo, Fuentes-Martín, Javier, Thomsen, Anders Eller, Virto, Javier, Allwicher, Lukas, Bakshi, Supratim Das, Bélusca-Maïto, Hermès, de Blas, Jorge, Chala, Mikael, Criado, Juan Carlos, Dedes, Athanasios, Fonseca, Renato M., Goncalves, Angelica, Ilakovac, Amon, König, Matthias, Patra, Sunando Kumar, Kühler, Paul, Mađor-Božinović, Marija, Misiak, Mikołaj, Miralles, Víctor, Nałȩcz, Ignacy, Reboud, Méril, Reina, Laura, Rosiek, Janusz, Ryczkowski, Michal, Santiago, José, Silvestrini, Luca, Stangl, Peter, Stöckinger, Dominik, Stoffer, Peter, Vicente, Avelino, Weißwange, Matthias
Publikováno v:
Eur. Phys. J. C 84, 170 (2024)
In recent years, theoretical and phenomenological studies with effective field theories have become a trending and prolific line of research in the field of high-energy physics. In order to discuss present and future prospects concerning automated to
Externí odkaz:
http://arxiv.org/abs/2307.08745
Publikováno v:
Nordic Journal of Studies in Policing, Vol 11, Iss 1, Pp 1-23 (2024)
All patrolling police officers, regardless of body composition, age, or gender, are expected to meet the physical challenges to which they are exposed. Some challenges can be extremely demanding, such as situations where officers must arrest an intra
Externí odkaz:
https://doaj.org/article/aade31aa36d5489b9a1b052bc9723f82
Publikováno v:
Eur. Phys. J. C 83, 662 (2023)
Studying the impact of new-physics models on low-energy observables necessitates matching to effective field theories at the relevant mass thresholds. We introduce the first public version of Matchete, a computer tool for matching weakly-coupled mode
Externí odkaz:
http://arxiv.org/abs/2212.04510
Autor:
Dawson, Sally, Greljo, Admir, Lohwasser, Kristin, Aebischer, Jason, Bakshi, Supratim Das, Carmona, Adrián, Chakrabortty, Joydeep, Cohen, Timothy, Criado, Juan Carlos, Fuentes-Martín, Javier, Lazopoulos, Achilleas, Lu, Xiaochuan, Di Noi, Stefano, Olgoso, Pablo, Patra, Sunando Kumar, Santiago, José, Silvestrini, Luca, Thomsen, Anders Eller, Zhang, Zhengkang
This note gives an overview of the tools for the precision matching of ultraviolet theories to the Standard Model effective field theory (SMEFT) at the tree level and one loop. Several semi- and fully automated codes are presented, as well as some su
Externí odkaz:
http://arxiv.org/abs/2212.02905
Publikováno v:
JHEP 02 (2023) 031
Effective Field Theory calculations used in countless phenomenological analyses employ dimensional regularization, and at intermediate stages of computations, the operator bases extend beyond the four-dimensional ones. The extra pieces -- the evanesc
Externí odkaz:
http://arxiv.org/abs/2211.09144