242 citations · 1.8k across the 27 of their papers we have counts for
27 papers
Domain wall networks from first-order phase transitions and gravitational waves
Dongdong Wei, Yun Jiang
In the first-order phase transitions (PTs) colliding bubble is an important gravitational wave (GW) source. Following bubble collision, domain walls can be formed when degenerate v…
Dark Matter and Nature of Electroweak Phase Transition with an Inert Doublet
Sven Fabian, Florian Goertz, Yun Jiang
We provide a comprehensive and up-to-date analysis of the prospects to realize Dark Matter (DM) in the Inert Doublet Model, while simultaneously enhancing the Electroweak Phase Tra…
Interpreting top-quark LHC measurements in the standard-model effective field theory
J. A. Aguilar Saavedra, C. Degrande, G. Durieux +32
This note proposes common standards and prescriptions for the effective-field-theory interpretation of top-quark measurements at the LHC.
Higgs Pair Productions in the CP-violating Two-Higgs-Doublet Model
Ligong Bian, Ning Chen, Yun Jiang
The SM-like Higgs pair productions are discussed in the framework of the general CP-violating two-Higgs-doublet model, where we find the CP-violating mixing angles can be related t…
A new insight into the phase transition in the early Universe with two Higgs doublets
Jérémy Bernon, Ligong Bian, Yun Jiang
We study the electroweak phase transition in the alignment limit of the CP-conserving two-Higgs-doublet model (2HDM) of Type I and Type II. The effective potential is evaluated at…
WCxf: an exchange format for Wilson coefficients beyond the Standard Model
Jason Aebischer, Ilaria Brivio, Alejandro Celis +11
We define a data exchange format for numerical values of Wilson coefficients of local operators parameterising low-energy effects of physics beyond the Standard Model. The format f…
The SMEFTsim package, theory and tools
Ilaria Brivio, Yun Jiang, Michael Trott
We report codes for the Standard Model Effective Field Theory (SMEFT) in FeynRules -- the SMEFTsim package. The codes enable theoretical predictions for dimension six operator corr…
On the non-minimal character of the SMEFT
Yun Jiang, Michael Trott
When integrating out unknown new physics sectors, what is the minimal character of the Standard Model Effective Field Theory (SMEFT) that can result? In this paper we focus on a pa…
Boosted scalar confronting 750 GeV di-photon excess
Yun Jiang, Lingfeng Li, Rui Zheng
We consider the di-photon signal arises from two bunches of collimated photon jets emitting from a pair of highly boosted scalars. Following the discussion of detecting the photon…
Implications of the absence of high-mass radion signals
Aqeel Ahmed, Barry M. Dillon, Bohdan Grzadkowski +2
Given the disappearance of the 750 GeV di-photon LHC signal and the absence of signals at high mass in this and other channels, significant constraints on the mixed Higgs-radion of…
Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 2: GeV
Jérémy Bernon, John F. Gunion, Howard E. Haber +2
In the alignment limit of a multi-doublet Higgs sector, one of the Higgs mass eigenstates aligns in field space with the direction of the scalar field vacuum expectation values, an…
Higgs dark matter from a warped extra dimension
Aqeel Ahmed, Bohdan Grzadkowski, John F. Gunion +1
We present a 5D -symmetric IR-UV-IR model with a {\it warped KK-parity} under which the bulk fields have towers of either even or odd KK-modes. We show that this $\ma…
Radius stabilization and dark matter with a bulk Higgs in warped extra dimension
Aqeel Ahmed, Bohdan Grzadkowski, John F. Gunion +1
We employ an bulk Higgs doublet as the stabilization field in Randall-Sundrum model with appropriate bulk and brane-localized potentials. The gauge hierarchy problem can be…
Isospin-violating dark-matter-nucleon scattering via two-Higgs-doublet-model portals
Aleksandra Drozd, Bohdan Grzadkowski, John F. Gunion +1
We show that in a multi-Higgs model in which one Higgs fits the LHC 125 GeV state, one or more of the other Higgs bosons can mediate DM-nucleon interactions with maximal DM isospin…
Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 1: GeV
Jérémy Bernon, John F. Gunion, Howard E. Haber +2
In the alignment limit of a multi-doublet Higgs sector, one of the Higgs mass eigenstates aligns with the direction of the scalar field vacuum expectation values, and its couplings…
Higgs Dark Matter from a Warped Extra-Dimension -- the truncated-inert-doublet model
Aqeel Ahmed, Bohdan Grzadkowski, John F. Gunion +1
We construct a 5D -symmetric model with three D3-branes: two IR ones with negative tension located at the ends of an extra-dimensional interval and a UV-brane with po…
Light Higgs bosons in Two-Higgs-Doublet Models
Jeremy Bernon, John F. Gunion, Yun Jiang +1
We explore the possibilities in two-Higgs-doublet models (2HDMs) of Type I and Type II for Higgs states with mass below about 60 GeV, i.e. less than half of the ~125 GeV mass of th…
Addendum to "Constraints on and future prospects for Two-Higgs-Doublet Models in light of the LHC Higgs signal"
Beranger Dumont, John F. Gunion, Yun Jiang +1
We update the constraints on Two-Higgs-Doublet Models of Type I and II discussed in arXiv:1405.3584 using the latest LHC measurements of the ~125.5 GeV Higgs signal as of Summer 20…
Extending two-Higgs-doublet models by a singlet scalar field - the Case for Dark Matter
Aleksandra Drozd, Bohdan Grzadkowski, John F. Gunion +1
We extend the two-Higgs doublet models of Type I and Type II by adding a real gauge-singlet scalar S dark matter candidate (2HDMS models). We impose theoretical constraints derivin…
Constraints on and future prospects for Two-Higgs-Doublet Models in light of the LHC Higgs signal
Beranger Dumont, John F. Gunion, Yun Jiang +1
We analyze the Two-Higgs-Doublet Models (2HDMs) of Type I and II for consistency with the latest measurements of the ~125.5 GeV Higgs-like signal at the LHC. To this end, we perfor…
125 GeV Higgs bosons in two-Higgs-doublet models
Yun Jiang
Moriond 2013 ALTAS data at 125 GeV state appears to exhibit a substantial excess in the di-photon final state and in the ZZ decaying to four lepton channel, whereas which are more…
Two-Higgs-Doublet Models and Enhanced Rates for a 125 GeV Higgs
Aleksandra Drozd, Bohdan Grzadkowski, John F. Gunion +1
We examine the level of enhancement that can be achieved in the ZZ and γγchannels for a two-Higgs-doublet model Higgs boson (either the light h or the heavy H) with mass near 125 G…
Higgs Bosons at 98 and 125 GeV at LEP and the LHC
Geneviève Bélanger, Ulrich Ellwanger, John F. Gunion +3
We discuss NMSSM scenarios in which the lightest Higgs boson is consistent with the small LEP excess at about 98 GeV in with $h\to b\anti b$ and the heavier H…
Two Higgs Bosons at the Tevatron and the LHC?
G. Belanger, U. Ellwanger, J. F. Gunion +2
The best fit to the Tevatron results in the bb channel and the mild excesses at CMS in the gamma-gamma channel at 136 GeV and in the tau-tau channel above 132 GeV can be explained…