Effective field theory analysis of dark matter-standard model interactions with spin one mediators
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep02(2021)223
Abstract: We analyze interactions between dark matter and standard model particles with spin one mediators in an effective field theory framework. In this paper, we are considering dark particles masses in the range from a few… read more here.
Keywords: matter standard; dark matter; one mediators; standard model ... See more keywords
Resonant production of Wh and Zh at the LHC
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2018)159
Abstract: A bstractWe examine the production of Wh and Zh pairs at the LHC in the context of a Strongly Interacting Symmetry Breaking Sector of the Standard Model. Our description is based on a non-linear Higgs… read more here.
Keywords: production lhc; production; resonant production; standard model ... See more keywords
Singleton portals to the twin sector
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2019)016
Abstract: A bstractThe mirror twin Higgs framework allows for a natural Higgs mass while being consistent with collider bounds on colored symmetry partners to standard model quarks. This mechanism relies crucially on a discrete symmetry which… read more here.
Keywords: sector; singleton portals; standard model; twin sector ... See more keywords
Global anomalies in the Standard Model(s) and beyond
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DOI: 10.1007/jhep07(2020)232
Abstract: We analyse global anomalies and related constraints in the Standard Model (SM) and various Beyond the Standard Model (BSM) theories. We begin by considering four distinct, but equally valid, versions of the SM, in which… read more here.
Keywords: standard model; gauge group; global anomalies; model beyond ... See more keywords
Standard Model prediction of the Bc lifetime
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DOI: 10.1007/jhep07(2021)130
Abstract: Abstract Applying an operator product expansion approach we update the Standard Model prediction of the Bc lifetime from over 20 years ago. The non-perturbative velocity expansion is carried out up to third order in the… read more here.
Keywords: standard model; model prediction; physics; prediction lifetime ... See more keywords
The decay h → γγ in the Standard-Model Effective Field Theory
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2018)103
Abstract: A bstractAssuming that new physics effects are parametrized by the Standard-Model Effective Field Theory (SMEFT) written in a complete basis of up to dimension-6 operators, we calculate the CP-conserving one-loop amplitude for the decay h… read more here.
Keywords: effective field; model effective; theory; standard model ... See more keywords
Singlet scalar and 2HDM extensions of the Standard Model: CP-violation and constraints from (g − 2)μ and eEDM
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2018)059
Abstract: A bstractWe study popular scalar extensions of the Standard Model, namely the singlet extension, the 2-Higgs doublet model (2HDM) and its extension by a singlet scalar. We focus on the contributions of the added scalars… read more here.
Keywords: moment; standard model; violation; singlet scalar ... See more keywords
Neutral kaon mixing beyond the Standard Model with nf = 2 + 1 chiral fermions. Part 2: non perturbative renormalisation of the ΔF = 2 four-quark operators
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2017)054
Abstract: A bstractWe compute the renormalisation factors (Z-matrices) of the ΔF = 2 four-quark operators needed for Beyond the Standard Model (BSM) kaon mixing. We work with nf = 2+1 flavours of Domain-Wall fermions whose chiral-flavour… read more here.
Keywords: kaon mixing; beyond standard; standard model; quark operators ... See more keywords
Decay rate and asymmetries of Σ+ → pμ+μ−
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2018)040
Abstract: A bstractThe LHCb Collaboration has recently reported evidence for the rare hyperon decay Σ+ → pμ+μ− that is consistent with the standard model expectation. Motivated by this new result we revisit the calculation of this… read more here.
Keywords: rate asymmetries; decay rate; standard model; physics ... See more keywords
Towards a Higgs mass determination in asymptotically safe gravity with a dark portal
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DOI: 10.1007/jhep10(2021)100
Abstract: Abstract There are indications that an asymptotically safe UV completion of the Standard Model with gravity could constrain the Higgs self-coupling, resulting in a prediction of the Higgs mass close to the vacuum stability bound… read more here.
Keywords: standard model; asymptotically safe; mass; gravity ... See more keywords
Improved Ke3 radiative corrections sharpen the Kμ2–Kl3 discrepancy
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DOI: 10.1007/jhep11(2021)172
Abstract: Abstract The measurements of Vus in leptonic (Kμ2) and semileptonic (Kl3) kaon decays exhibit a 3σ disagreement, which could originate either from physics beyond the Standard Model or some large unidentified Standard Model systematic effects.… read more here.
Keywords: kl3 discrepancy; physics; standard model; radiative corrections ... See more keywords