Álvaro Díaz-Carmona
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Álvaro Díaz-Carmona has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Supratim Das Bakshi
HEP Division, Argonne National Laboratory
5 shared publications - Mikael Chala
Universidad de Granada
4 shared publications - Guilherme Guedes
Theoretical Physics Department CERN Esplanade des Particules 1 1211 Geneva Switzerland
3 shared publications - Fuensanta Vilches
Universidad de Granada
1 shared publication - Zhe Ren
Universidad de Granada
1 shared publication
Latest Publications
- Open Access
- 30 December 2024
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2024 (12) , 1-15
Renormalization of the SMEFT to dimension eight: Fermionic interactions I
This is the third of a series of works [1, 2] aimed at renormalizing the Standard Model effective field theory at one loop and to order 1/Λ4, with Λ being the new physics cut-off. On this occasion, we concentrate on the running of two-fermion operators induced by pairs of dimension-six interactions. We work mostly off-shell, for which we obtain and provide a new and explicitly hermitian basis of dimension-eight Green’s functions. All our results can be accessed in https://github.com/SMEFT-Dimension8-RGEs.
- 30 December 2024
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2024 (12) , 1-15
Open AccessRenormalization of the SMEFT to dimension eight: Fermionic interactions I
This is the third of a series of works [1, 2] aimed at renormalizing the Standard Model effective field theory at one loop and to order 1/Λ4, with Λ being the new physics cut-off. On this occasion, we concentrate on the running of two-fermion operators induced by pairs of dimension-six interactions. We work mostly off-shell, for which we obtain and provide a new and explicitly hermitian basis of dimension-eight Green’s functions. All our results can be accessed in https://github.com/SMEFT-Dimension8-RGEs.
- Open Access
Towards the renormalisation of the Standard Model effective field theory to dimension eight: Bosonic interactions II
We calculate the renormalisation group running of the bosonic Standard Model (SM) effective operators at one loop and to order $v^4/\Lambda^4$, with $v\sim 246$ GeV being the electroweak scale and $\Lambda$ the unknown new physics threshold. We focus on contributions driven by one dimension-eight term and SM couplings, thus extending (and completing) the effort initiated in arXiv:2106.05291, in which quantum corrections from pairs of dimension-six interactions were considered. We highlight some interesting consequences, including the renormalisation of loop-induced interactions by tree-level generated terms and, more importantly, the validity of positivity bounds on different operators inducing anomalous gauge quartic couplings.Open AccessTowards the renormalisation of the Standard Model effective field theory to dimension eight: Bosonic interactions II
We calculate the renormalisation group running of the bosonic Standard Model (SM) effective operators at one loop and to order $v^4/\Lambda^4$, with $v\sim 246$ GeV being the electroweak scale and $\Lambda$ the unknown new physics threshold. We focus on contributions driven by one dimension-eight term and SM couplings, thus extending (and completing) the effort initiated in arXiv:2106.05291, in which quantum corrections from pairs of dimension-six interactions were considered. We highlight some interesting consequences, including the renormalisation of loop-induced interactions by tree-level generated terms and, more importantly, the validity of positivity bounds on different operators inducing anomalous gauge quartic couplings. - Open Access
- 21 June 2023
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2023 (6) , 1-27
Renormalisation of SMEFT bosonic interactions up to dimension eight by LNV operators
We present the renormalisation group running of the bosonic operators of the Standard Model effective field theory (SMEFT) by the Lepton Number Violating operators (LNVs) at 1-loop order up to $$ \mathcal{O} $$ (v4/Λ4), with v ∼ 246 GeV as the electroweak scale and Λ as the SMEFT cut-off. Using these relations with the positivity bounds on Wilson coefficients of ϕ4D4 class, we derive sign constraints on the Wilson coefficients of LNV operators, for models where ϕ4D4 operators do not appear at tree-level. We inspect these constraints for the LNV Wilson coefficients generated from matching the Type-I and III seesaw models to SMEFT up to dimension seven at tree-level. We also exhibit the unique bounds induced by the T-parameter on LNVs.- 21 June 2023
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2023 (6) , 1-27
Open AccessRenormalisation of SMEFT bosonic interactions up to dimension eight by LNV operators
We present the renormalisation group running of the bosonic operators of the Standard Model effective field theory (SMEFT) by the Lepton Number Violating operators (LNVs) at 1-loop order up to $$ \mathcal{O} $$ (v4/Λ4), with v ∼ 246 GeV as the electroweak scale and Λ as the SMEFT cut-off. Using these relations with the positivity bounds on Wilson coefficients of ϕ4D4 class, we derive sign constraints on the Wilson coefficients of LNV operators, for models where ϕ4D4 operators do not appear at tree-level. We inspect these constraints for the LNV Wilson coefficients generated from matching the Type-I and III seesaw models to SMEFT up to dimension seven at tree-level. We also exhibit the unique bounds induced by the T-parameter on LNVs. - Open Access
Renormalisation of SMEFT bosonic interactions up to dimension eight by LNV operators
We present the renormalisation group running of the bosonic operators of the Standard Model effective field theory by the Lepton Number Violating operators (LNVs) at 1-loop order up to $\mathcal{O}(v^4/Λ^4)$, with $v \sim 246$ GeV as the electroweak scale and $Λ$ as the SMEFT cut-off. Using these relations with the positivity bounds on Wilson coefficients of $φ^4 D^4$ class, we derive sign-constraints on the Wilson coefficients of LNV operators for models where $φ^4 D^4$ operators do not appear at tree-level. We inspect these constraints for the LNV Wilson coefficients generated from matching the Type-I and III seesaw models to SMEFT up to dimension seven at tree-level. We also exhibit the unique bounds induced by the T-parameter on LNVs.Open AccessRenormalisation of SMEFT bosonic interactions up to dimension eight by LNV operators
We present the renormalisation group running of the bosonic operators of the Standard Model effective field theory by the Lepton Number Violating operators (LNVs) at 1-loop order up to $\mathcal{O}(v^4/Λ^4)$, with $v \sim 246$ GeV as the electroweak scale and $Λ$ as the SMEFT cut-off. Using these relations with the positivity bounds on Wilson coefficients of $φ^4 D^4$ class, we derive sign-constraints on the Wilson coefficients of LNV operators for models where $φ^4 D^4$ operators do not appear at tree-level. We inspect these constraints for the LNV Wilson coefficients generated from matching the Type-I and III seesaw models to SMEFT up to dimension seven at tree-level. We also exhibit the unique bounds induced by the T-parameter on LNVs. - Open Access
- 27 August 2022
- Published by Springer Nature in The European Physical Journal Plus
- Vol. 137 (8) , 1-12
Towards the renormalisation of the Standard Model effective field theory to dimension eight: bosonic interactions II
We calculate the renormalisation group running of the bosonic Standard Model (SM) effective operators at one loop and to order $$v^4/\Lambda ^4$$ , with $$v\sim 246$$ GeV being the electroweak scale and $$\Lambda$$ the unknown new physics threshold. We focus on contributions driven by one dimension-eight term and SM couplings, thus extending (and completing) the effort initiated in Chala et al. (SciPost Phys 11:065, 2021). arXiv:2106.05291, in which quantum corrections from pairs of dimension-six interactions were considered. We highlight some interesting consequences, including the renormalisation of loop-induced interactions by tree-level generated terms and, more importantly, the validity of positivity bounds on different operators inducing anomalous gauge quartic couplings.- 27 August 2022
- Published by Springer Nature in The European Physical Journal Plus
- Vol. 137 (8) , 1-12
Open AccessTowards the renormalisation of the Standard Model effective field theory to dimension eight: bosonic interactions II
We calculate the renormalisation group running of the bosonic Standard Model (SM) effective operators at one loop and to order $$v^4/\Lambda ^4$$ , with $$v\sim 246$$ GeV being the electroweak scale and $$\Lambda$$ the unknown new physics threshold. We focus on contributions driven by one dimension-eight term and SM couplings, thus extending (and completing) the effort initiated in Chala et al. (SciPost Phys 11:065, 2021). arXiv:2106.05291, in which quantum corrections from pairs of dimension-six interactions were considered. We highlight some interesting consequences, including the renormalisation of loop-induced interactions by tree-level generated terms and, more importantly, the validity of positivity bounds on different operators inducing anomalous gauge quartic couplings. - Open Access
- 20 May 2022
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2022 (5) , 1-27
A Green’s basis for the bosonic SMEFT to dimension 8
We present a basis of dimension-eight Green’s functions involving Standard Model (SM) bosonic fields, consisting of 86 new operators. Rather than using algebraic identities and integration by parts, we prove the independence of these interactions in momentum space, including discussion on evanescent bosonic operators. Our results pave the way for renormalising the SM effective field theory (SMEFT), as well as for performing matching of ultraviolet models onto the SMEFT, to higher order. To demonstrate the potential of our construction, we have implemented our basis in matchmakereft and used it to integrate out a heavy singlet scalar and a heavy quadruplet scalar up to one loop. We provide the corresponding dimension-eight Wilson coefficients. Likewise, we show how our results can be easily used to simplify cumbersome redundant Lagrangians arising, for example, from integrating out heavy fields using the path-integral approach to matching.
- 20 May 2022
- Published by Springer Nature in Journal of High Energy Physics
- Vol. 2022 (5) , 1-27
Open AccessA Green’s basis for the bosonic SMEFT to dimension 8
We present a basis of dimension-eight Green’s functions involving Standard Model (SM) bosonic fields, consisting of 86 new operators. Rather than using algebraic identities and integration by parts, we prove the independence of these interactions in momentum space, including discussion on evanescent bosonic operators. Our results pave the way for renormalising the SM effective field theory (SMEFT), as well as for performing matching of ultraviolet models onto the SMEFT, to higher order. To demonstrate the potential of our construction, we have implemented our basis in matchmakereft and used it to integrate out a heavy singlet scalar and a heavy quadruplet scalar up to one loop. We provide the corresponding dimension-eight Wilson coefficients. Likewise, we show how our results can be easily used to simplify cumbersome redundant Lagrangians arising, for example, from integrating out heavy fields using the path-integral approach to matching.