Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Sebastian Bruggisser"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-29 (2024)
Abstract We perform a global fit of the effective Lagrangian for axion-like particles (ALPs) to data. By combining LHC observables from top physics, dijet and di-boson production with electroweak precision observables, we resolve the full parameter s
Externí odkaz:
https://doaj.org/article/d5a4efe6887c451ca77ee498af81a770
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-42 (2023)
Abstract We present an update on the status of electroweak baryogenesis in minimal composite Higgs models. The particularity of this framework is that the electroweak phase transition can proceed simultaneously with the confinement phase transition o
Externí odkaz:
https://doaj.org/article/4e815393f4da408f9e81620624d0b913
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-26 (2023)
Abstract The dilaton is predicted in various extensions of the standard model containing sectors with an approximate spontaneously-broken conformal invariance. As a Goldstone boson of a spontaneously broken symmetry, the dilaton can naturally be one
Externí odkaz:
https://doaj.org/article/c13ca51875af43a586b010cfcd2d6c9a
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-33 (2023)
Abstract We constrain the flavor structure of Wilson coefficients in the Standard Model Effective Field Theory (SMEFT) from data. In the SMEFT, new physics effects in couplings of up-type and down-type quarks are related through the Cabibbo-Kobayashi
Externí odkaz:
https://doaj.org/article/acdd5021c92a4946a8a2d867dc859a4c
Autor:
Ilaria Brivio, Sebastian Bruggisser, Nina Elmer, Emma Geoffray, Michel Luchmann, Tilman Plehn
Publikováno v:
SciPost Physics, Vol 16, Iss 1, p 035 (2024)
Global SMEFT analyses have become a key interpretation framework for LHC physics, quantifying how well a large set of kinematic measurements agrees with the Standard Model. This agreement is encoded in measured Wilson coefficients and their uncertain
Externí odkaz:
https://doaj.org/article/b6aeca70d3d94fed84e208c893e083de
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-53 (2021)
Abstract New physics not far above the TeV scale should leave a pattern of virtual effects in observables at lower energies. What do these effects tell us about the flavor structure of a UV theory? Within the framework of the Standard Model Effective
Externí odkaz:
https://doaj.org/article/66c3c5639a9c4022bfd9b35b0292f51b
Autor:
Ilaria Brivio, Sebastian Bruggisser, Fabio Maltoni, Rhea Moutafis, Tilman Plehn, Eleni Vryonidou, Susanne Westhoff, Cen Zhang
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 2, Pp 1-47 (2020)
Abstract We provide a comprehensive global analysis of Run II top measurements at the LHC in terms of dimension-6 operators. A distinctive feature of the top sector as compared to the Higgs-electroweak sector is the large number of four-quark operato
Externí odkaz:
https://doaj.org/article/1c9c82987bfb4d7eb1f941441b9b23fc
Publikováno v:
SciPost Physics, Vol 12, Iss 1, p 036 (2022)
We present a global analysis of the Higgs and electroweak sector, in the SMEFT framework and matched to a UV-completion. As the UV-model we use the triplet extension of the electroweak gauge sector. The matching is performed at one loop, employing fu
Externí odkaz:
https://doaj.org/article/ad907e613dbc4e8ba21cca37a0a84f29
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 12, Pp 1-57 (2018)
Abstract We present a comprehensive study of the electroweak phase transition in composite Higgs models, where the Higgs arises from a new, strongly-coupled sector which confines near the TeV scale. This work extends our study in ref. [1]. We describ
Externí odkaz:
https://doaj.org/article/ea1d246574a644dda83d479f622150c5
Publikováno v:
SciPost Physics, Vol 3, Iss 3, p 017 (2017)
In the presence of approximate global symmetries that forbid relevant interactions, strongly coupled light Dark Matter (DM) can appear weakly coupled at small energy and generate a sizable relic abundance. Fundamental principles like unitarity res
Externí odkaz:
https://doaj.org/article/24ddbe85be214024bffdb65a286c05e5