papers

Publications (102)

hep-ph2014

Exotic Higgs decays in the golden channel

Adam Falkowski, Roberto Vega-Morales

The Higgs boson may have decay channels that are not predicted by the Standard Model. We discuss the prospects of probing exotic Higgs decays at the LHC using the 4-lepton final st…

hep-ph2019

Which EFT

Adam Falkowski, Riccardo Rattazzi

We classify effective field theory (EFT) deformations of the Standard Model (SM) according to the analyticity property of the Lagrangian as a function of the Higgs doublet H. Our d…

hep-ph2018

CP violation in 2HDM and EFT: the ZZZ vertex

Hermès Bélusca-Maïto, Adam Falkowski, Duarte Fontes +2

We study the CP violating ZZZ vertex in the two-Higgs doublet model, which is a probe of a Jarlskog-type invariant in the extended Higgs sector. The form factor is evaluate…

hep-ph2016

Di-photon portal to warped gravity

Adam Falkowski, Jernej F. Kamenik

The diphoton excess around 750 GeV observed by ATLAS and CMS can be interpreted as coming from a massive spin-2 excitation. We explore this possibility in the context of warped fiv…

hep-ph2013

Vector-like leptons: Higgs decays and collider phenomenology

Adam Falkowski, David M. Straub, Avelino Vicente

We study the impact of heavy vector-like leptons on several observables in collider and low-energy physics. These states, present in many well-motivated extensions of the Standard…

hep-ph2012

What if the Higgs couplings to W and Z bosons are larger than in the Standard Model?

Adam Falkowski, Slava Rychkov, Alfredo Urbano

We derive a general sum rule relating the Higgs coupling to W and Z bosons to the total cross section of longitudinal gauge boson scattering in I=0,1,2 isospin channels. The Higgs…

hep-th2001

Non-BPS Branes of Supersymmetric Brane Worlds

Philippe Brax, Adam Falkowski, Zygmunt Lalak

We consider five-dimensional brane worlds with N=2 gauged supergravity in the bulk coupled supersymmetrically to two boundary branes at the fixed points of a Z_2 symmetry. We analy…

hep-ph2016

Implications of the 750 GeV gamma-gamma Resonance as a Case Study for the International Linear Collider

Keisuke Fujii, Christophe Grojean, Michael E. Peskin +22

If the gamma-gamma resonance at 750 GeV suggested by 2015 LHC data turns out to be a real effect, what are the implications for the physics case and upgrade path of the Internation…

hep-ph2009

Dark Matter Through the Neutrino Portal

Adam Falkowski, Jose Juknevich, Jessie Shelton

We consider a model of dark matter whose most prominent signature is a monochromatic flux of TeV neutrinos from the galactic center. As an example of a general scenario, we conside…

hep-ph2015

Model independent constraints on four-lepton operators

Adam Falkowski, Kin Mimouni

We obtain constraints on four-lepton interactions in the effective field theory with dimension-6 operators. To this end, we combine the experimental input from Z boson measurements…

hep-ph2009

Electroweak Precision Observables and the Unhiggs

Adam Falkowski, Manuel Perez-Victoria

We compute one-loop corrections to the S and T parameters in the Unhiggs scenario. In that scenario, the Standard Model Higgs is replaced by a non-local object, called the Unhiggs,…

hep-th2020

Matter Coupling in Massive Gravity

Adam Falkowski, Giulia Isabella

We discuss the dRGT massive gravity interacting with spin-0, spin-1/2, or spin-1 matter. The effective theory of a massive spin-2 particle coupled to matter particles is constructe…

hep-ph2016

On the exotic Higgs decays in effective field theory

Hermès Bélusca-Maïto, Adam Falkowski

We discuss exotic Higgs decays in an effective field theory where the Standard Model is extended by dimension-6 operators. We review and update the status of 2-body lepton- and qua…

hep-ph2007

Pseudo-Goldstone Higgs Production via Gluon Fusion

Adam Falkowski

The gluon-gluon-higgs amplitude is investigated in the context of 5D models of gauge-higgs unification. A simple algorithm allows to include, in a fully analytical way, the contrib…

hep-ph2022

Semileptonic tau decays beyond the Standard Model

Vincenzo Cirigliano, David Díaz-Calderón, Adam Falkowski +2

Hadronic decays are studied as probe of new physics. We determine the dependence of several inclusive and exclusive observables on the Wilson coefficients of the low-ener…

hep-ph2020

Associated production in the flavorful scenario for

Siddharth Dwivedi, Adam Falkowski, Dilip Kumar Ghosh +1

The flavorful model with its couplings restricted to the left-handed second generation leptons and third generation quarks can potentially resolve the observed anomalies…

hep-th2025

Gauge anomalies on shell and collinear factorization

Edoardo Alviani, Adam Falkowski

We revisit gauge anomalies from the purely on-shell perspective. We argue that violation of anomaly cancellation conditions manifests as a breakdown of collinear factorization. We…

hep-th2025

On-shell approach to scalar hair in spinning binaries

Adam Falkowski, Panagiotis Marinellis

We propose an on-shell description of spinning binary systems in gravitational theories where compact objects display scalar hair. The framework involves matter particles of arbitr…

hep-th2003

Cosmological constant and kinetic supersymmetry breakdown on a moving brane

Philippe Brax, Adam Falkowski, Zygmunt Lalak

We consider cosmological solutions in 5d locally supersymmetric theories including boundary actions, with either opposite tension branes for identical brane chiralities or equal te…

hep-ph2020

Light quark Yukawas in triboson final states

Adam Falkowski, Sanmay Ganguly, Phillippe Gras +4

Triple heavy vector boson production, , has recently been observed for the first time. We propose that precision measurements of this process provide an e…

hep-ph2018

21cm absorption signal from charge sequestration

Adam Falkowski, Kalliopi Petraki

The unexpectedly strong 21cm absorption signal detected by the EDGES experiment suggests that the baryonic gas was colder at redshift than predicted in the standard scen…

hep-ph2020

Bases of massless EFTs via momentum twistors

Adam Falkowski

I present a novel method of deriving a basis of contact terms in massless effective field theories (EFTs). It relies on the parametrization of -body kinematics via the so-called…

hep-ph2001

Unification in models with replicated gauge groups

Piotr H. Chankowski, Adam Falkowski, Stefan Pokorski

We examine unification of gauge couplings in four dimensional renormalizable gauge theories inspired by the latticized (deconstructed) SM or MSSM in five dimensions. The models are…

hep-ph2016

Higgs EFT for 2HDM and beyond

Hermès Bélusca-Maïto, Adam Falkowski, Duarte Fontes +2

We discuss the validity of the Standard Model Effective Field Theory (SM EFT) as the low-energy effective theory for the two-Higgs-doublet Model (2HDM). Using the up-to-date Higgs…

hep-ph2016

On the Validity of the Effective Field Theory Approach to SM Precision Tests

Roberto Contino, Adam Falkowski, Florian Goertz +2

We discuss the conditions for an effective field theory (EFT) to give an adequate low-energy description of an underlying physics beyond the Standard Model (SM). Starting from the…

hep-ph2007

Modelling strong interactions and longitudinally polarized vector boson scattering

Adam Falkowski, Stefan Pokorski, J. P. Roberts

We study scattering of the electroweak gauge bosons in 5D warped models. Within two different models we determine the precise manner in which the Higgs boson and the vector resonan…

hep-ph2024

Constraints on subleading interactions in beta decay Lagrangian

Adam Falkowski, Martín González-Alonso, Ajdin Palavrić +1

We discuss the effective field theory (EFT) for nuclear beta decay. The general quark-level EFT describing charged-current interactions between quarks and leptons is matched to the…

hep-th2021

Soft Matters, or the Recursions with Massive Spinors

Adam Falkowski, Camila S. Machado

We discuss recursion relations for scattering amplitudes with massive particles of any spin. They are derived via a two-parameter shift of momenta, combining a BCFW-type spinor shi…

hep-ph2014

From Tevatron's top and lepton-based asymmetries to the LHC

Adrian Carmona, Mikael Chala, Adam Falkowski +4

We define a lepton-based asymmetry in semi-leptonic ttbar production at the LHC. We show that the ratio of this lepton-based asymmetry and the ttbar charge asymmetry, measured as a…

hep-ph2013

Constraints on Higgs Couplings and Physics Beyond the Standard Model

Hermes Belusca-Maito, Adam Falkowski

We summarize current constraints on the couplings of the Higgs boson in the framework of an effective theory beyond the Standard Model.

hep-ph2017

Compilation of low-energy constraints on 4-fermion operators in the SMEFT

Adam Falkowski, Martín González-Alonso, Kin Mimouni

We compile information from low-energy observables sensitive to flavor-conserving 4-fermion operators with two or four leptons. Our analysis includes data from e+e- colliders, neut…

hep-ph2012

Higgs After the Discovery: A Status Report

Dean Carmi, Adam Falkowski, Eric Kuflik +2

Recently, the ATLAS and CMS collaborations have announced the discovery of a 125 GeV particle, commensurable with the Higgs boson. We analyze the 2011 and 2012 LHC and Tevatron Hig…

hep-ph2014

New Observables for CP Violation in Higgs Decays

Yi Chen, Adam Falkowski, Ian Low +1

Current experimental data on the 125 GeV Higgs boson still allow room for large CP violation. The observables usually considered in this context are triple product asymmetries, whi…

hep-ph2012

Non-thermal Dark Matter Production from the Electroweak Phase Transition: Multi-TeV WIMPs and "Baby-Zillas"

Adam Falkowski, Jose Miguel No

Particle production at the end of a first-order electroweak phase transition may be rather generic in theories beyond the standard model. Dark matter may then be abundantly produce…

hep-ph2024

EFT analysis of New Physics at COHERENT

Víctor Bresó-Pla, Adam Falkowski, Martín González-Alonso +1

Using an effective field theory approach, we study coherent neutrino scattering on nuclei, in the setup pertinent to the COHERENT experiment. We include non-standard effects both i…

hep-ph2014

Displaced Vertices from X-ray Lines

Adam Falkowski, Yonit Hochberg, Joshua T. Ruderman

We present a simple model of weak-scale thermal dark matter that gives rise to X-ray lines. Dark matter consists of two nearly degenerate states near the weak scale, which are popu…

hep-ph2019

Reactor neutrino oscillations as constraints on Effective Field Theory

Adam Falkowski, Martín González-Alonso, Zahra Tabrizi

We study constraints on the Standard Model Effective Field Theory (SMEFT) from neutrino oscillations in short-baseline reactor experiments. We calculate the survival probability of…

hep-ph2015

Effective field theory approach to LHC Higgs data

Adam Falkowski

I review the effective field theory approach to LHC Higgs data.

hep-ph2012

Interpreting LHC Higgs Results from Natural New Physics Perspective

Dean Carmi, Adam Falkowski, Eric Kuflik +1

We analyze the 2011 LHC Higgs data in the context of simplified new physics models addressing the naturalness problem. These models are expected to contain new particles with sizab…

hep-ph2006

Holography, Pade Approximants and Deconstruction

Adam Falkowski, Manuel Perez-Victoria

We investigate the relation between holographic calculations in 5D and the Migdal approach to correlation functions in large N theories. The latter employs Pade approximation to ex…

hep-ph2021

EFT at FASER

Adam Falkowski, Martín González-Alonso, Joachim Kopp +2

We investigate the sensitivity of the FASER detector to new physics in the form of non-standard neutrino interactions. FASER, which has recently been installed 480 m downst…

hep-ph2011

If no Higgs then what?

Adam Falkowski, Christophe Grojean, Anna Kaminska +2

In the absence of a Higgs boson, the perturbative description of the Standard Model ceases to make sense above a TeV. Heavy spin-1 fields coupled to W and Z bosons can extend the v…

hep-th2000

Supersymmetrizing Branes with Bulk in Five-Dimensional Supergravity

Adam Falkowski, Zygmunt Lalak, Stefan Pokorski

We supersymmetrize a class of moduli dependent potentials living on branes with the help of additional bulk terms in 5d N=2 supergravity. The space of Poincare invariant vacuum sol…

hep-ph2006

Twin SUSY

Adam Falkowski, Stefan Pokorski, Martin Schmaltz

We construct an extension of the MSSM in which superpartners can naturally be heavier than the electroweak scale. This ``little hierarchy'' of scales is stable because the Higgs ar…

hep-ph2021

On-shell effective theory for higher-spin dark matter

Adam Falkowski, Giulia Isabella, Camila S. Machado

We apply the on-shell amplitude techniques in the domain of dark matter. Without evoking fields and Lagrangians, an effective theory for a massive spin- particle is defined in t…

hep-ph2013

Direct detection of Higgs-portal dark matter at the LHC

Abdelhak Djouadi, Adam Falkowski, Yann Mambrini +1

We consider the process in which a Higgs particle is produced in association with jets and show that monojet searches at the LHC already provide interesting constraints on the invi…

hep-ph2015

A second Higgs from the Higgs portal

Adam Falkowski, Christian Gross, Oleg Lebedev

In the Higgs portal framework, the Higgs field generally mixes with the Standard Model singlet leading to the existence of two states, one of which is identified with the 125 GeV s…

hep-ph2015

Electroweak constraints on flavorful effective theories

Aielet Efrati, Adam Falkowski, Yotam Soreq

We derive model-independent constraints arising from the Z and W boson observables on dimension six operators in the effective theory beyond the Standard Model. In particular, we d…

hep-ph2002

Running of Gauge Couplings in AdS5 via Deconstruction

Adam Falkowski, Hyung Do Kim

Running of gauge couplings on a slice of AdS5 is examined using the deconstruction set-up. Logarithmic running instead of (linear) power law is justified when the cutoff is lower t…

hep-ph2009

Buried Higgs

Brando Bellazzini, Csaba Csaki, Adam Falkowski +1

We present an extension of the MSSM where the dominant decay channel of the Higgs boson is a cascade decay into a four-gluon final state. In this model the Higgs is a pseudo-Goldst…

hep-th2005

Soft Supersymmetry Breaking in KKLT Flux Compactification

Kiwoon Choi, Adam Falkowski, Hans Peter Nilles +1

We examine the structure of soft supersymmetry breaking terms in KKLT models of flux compactification with low energy supersymmetry. Moduli are stabilized by fluxes and nonperturba…

hep-ph2008

A New Approach to mu-Bmu

Csaba Csaki, Adam Falkowski, Yasunori Nomura +1

We present a new approach to the mu-Bmu problem of gauge mediated supersymmetry breaking. Rather than reducing the generically large contribution to Bmu we point out that acceptabl…

hep-ph2013

Higgs At Last

Adam Falkowski, Francesco Riva, Alfredo Urbano

We update the experimental constraints on the parameters of the Higgs effective Lagrangian. We combine the most recent LHC Higgs data in all available search channels with electrow…

hep-th2005

Gravity mediated supersymmetry breaking in six dimensions

Adam Falkowski, Hyun Min Lee, Christoph Ludeling

We study gravity mediated supersymmetry breaking in four-dimensional effective theories derived from six-dimensional brane-world supergravity. Using the Noether method we construct…

hep-ph2008

Electroweak Breaking on a Soft Wall

Adam Falkowski, Manuel Perez-Victoria

We extend the 5D gauge-higgs scenario to the soft-wall framework where the IR brane is replaced by a smoothly decaying warp factor. The electroweak symmetry of the Standard Model i…

hep-th2002

Custodial supersymmetry in non-supersymmetric quiver theories

Philippe Brax, Adam Falkowski, Zygmunt Lalak +1

We consider non-supersymmetric quiver theories obtained by orbifolding the N=4 supersymmetric U(K) gauge theory by a discrete Z_Γgroup embedded in the SU(4) R-symmetry group. We e…

hep-th2001

Four-Dimensional Supergravities from Five-Dimensional Brane Worlds

Adam Falkowski, Zygmunt Lalak, Stefan Pokorski

We give the explicit form of the four dimensional effective supergravity action, which describes low energy physics of the Randall-Sundrum model with moduli fields in the bulk and…

hep-th2005

On the one-loop Kahler potential in five-dimensional brane-world supergravity

Adam Falkowski

We present an on-shell formulation of 5d gauged supergravity coupled to chiral matter multiplets localized at the orbifold fixed points. The brane action is constructed via the Noe…

hep-th2025

Spinning waveforms of scalar radiation in quadratic modified gravity

Adam Falkowski, Panagiotis Marinellis

We study scalar-tensor gravitational theories using on-shell amplitude methods. We focus on theories with gravity coupled to a massless scalar via the Gauss-Bonnet and Chern-Simons…

hep-ph2015

Rosetta: an operator basis translator for Standard Model effective field theory

Adam Falkowski, Benjamin Fuks, Kentarou Mawatari +3

We introduce Rosetta, a program allowing for the translation between different bases of effective field theory operators. We present the main functions of the program and provide a…

hep-ph2004

Electroweak symmetry breaking in supersymmetric models with heavy scalar superpartners

Piotr H. Chankowski, Adam Falkowski, Stefan Pokorski +1

We propose a novel mechanism of electroweak symmetry breaking in supersymmetric models, as the one recently discussed by Birkedal, Chacko and Gaillard, in which the Standard Model…

hep-ph2010

Hidden Higgs Decaying to Lepton Jets

Adam Falkowski, Joshua T. Ruderman, Tomer Volansky +1

The Higgs and some of the Standard Model superpartners may have been copiously produced at LEP and the Tevatron without being detected. We study a novel scenario of this type in wh…

hep-ph2011

Asymmetric Dark Matter from Leptogenesis

Adam Falkowski, Joshua T. Ruderman, Tomer Volansky

We present a new realization of asymmetric dark matter in which the dark matter and lepton asymmetries are generated simultaneously through two-sector leptogenesis. The right-hande…

hep-ph2016

Phenomenology of a 750 GeV Singlet

Adam Falkowski, Oren Slone, Tomer Volansky

We study the recently reported excess in the diphoton resonance search by ATLAS and CMS. We investigate the available parameter space in the combined run-1 and run-2 diphoton data…

hep-ph2021

Comprehensive analysis of beta decays within and beyond the Standard Model

Adam Falkowski, Martín González-Alonso, Oscar Naviliat-Cuncic

Precision measurements in allowed nuclear beta decays and neutron decay are reviewed and analyzed both within the Standard Model and looking for new physics. The analysis incorpora…

hep-th2006

Tools for Deconstructing Gauge Theories in AdS5

Jorge de Blas, Adam Falkowski, Manuel Perez-Victoria +1

We employ analytical methods to study deconstruction of 5D gauge theories in the AdS5 background. We demonstrate that using the so-called q-Bessel functions allows a quantitative a…

hep-ph2006

SUSY Phenomenology of KKLT Flux Compactifications

Adam Falkowski, Oleg Lebedev, Yann Mambrini

We study SUSY phenomenology of the KKLT (Kachru-Kallosh-Linde-Trivedi) scenario of string theory compactifications with fluxes. This setup leads to a specific pattern of soft masse…

hep-th2003

Deconstructed U(1) and Supersymmetry Breaking

Emilian Dudas, Adam Falkowski, Stefan Pokorski

We discuss supersymmetry breaking induced by simultaneous presence of a Wilson-line type superpotential and boundary-localized Fayet-Iliopoulos terms in a four dimensional theory b…

hep-ph2007

KK Parity in Warped Extra Dimension

Kaustubh Agashe, Adam Falkowski, Ian Low +1

We construct models with a Kaluza-Klein (KK) parity in a five- dimensional warped geometry, in an attempt to address the little hierarchy problem present in setups with bulk Standa…

hep-ph2006

About the holographic pseudo-Goldstone boson

Adam Falkowski

Pseudo-Goldstone bosons in 4D strongly coupled theories have a dual description in terms of 5D gauge theories in warped backgrounds. We introduce systematic methods of computing th…

hep-ph2018

Future DUNE constraints on EFT

Adam Falkowski, Giovanni Grilli di Cortona, Zahra Tabrizi

In the near future, fundamental interactions at high-energy scales may be most efficiently studied via precision measurements at low energies. A universal language to assemble and…

hep-th2000

Five-Dimensional Gauged Supergravities with Universal Hypermultiplet and Warped Brane Worlds

Adam Falkowski, Zygmunt Lalak, Stefan Pokorski

We present five dimensional gauged supergravity with universal hypermultiplet on M_4 \times S^1 / Z_2 coupled supersymmetrically to three-branes located at the fixed points. The co…

hep-ph2007

Pseudo-goldstone higgs from five dimensions

Adam Falkowski

I discuss radiative generation of the higgs potential in 5D models of gauge-higgs unification.

hep-ph2022

Truncation, validity, uncertainties

Ilaria Brivio, Sally Dawson, Jorge de Blas +19

The truncation of the standard-model effective field theory, its validity and the associated uncertainties have been discussed in meetings of the LHC EFT WG. Proposals were made by…

hep-ph2012

Interpreting the Higgs

Dean Carmi, Adam Falkowski, Eric Kuflik +1

The LHC and Tevatron Higgs data are interpreted as constraints on an effective theory of a Higgs boson with mass close to 125 GeV. We focus on the diphoton, ZZ*, WW* channels at th…

hep-th2025

UV completions of scalar-tensor EFTs

Edoardo Alviani, Adam Falkowski, Panagiotis Marinellis

We study models that give rise to scalar-tensor effective field theories (EFTs) at low energies. Our framework involves massive particles of spin coupled to gravity a…

hep-ph2022

On the sensitivity of the D parameter to new physics

Adam Falkowski, Antonio Rodríguez-Sánchez

Measurements of angular correlations in nuclear beta decay are important tests of the Standard Model (SM). Among those, the so-called D correlation parameter occupies a particular…

hep-th2003

Deconstructing 5D supersymmetric U(1) gauge theories on orbifolds

Adam Falkowski, Hans-Peter Nilles, Marek Olechowski +1

We investigate deconstruction of five dimensional supersymmetric abelian gauge theories compactified on , with various sets of bulk and matter multiplets. The problem of a…

hep-ph2009

Charming Higgs

Brando Bellazzini, Csaba Csaki, Adam Falkowski +1

We present a simple supersymmetric model where the dominant decay mode of the lightest Higgs boson is h->2eta->4c where eta is a light pseudoscalar and c is the charm quark. For su…

hep-ph2007

Electroweak observables in a general 5D background

Antonio Delgado, Adam Falkowski

Warped extra dimensions provide a new playground to study electroweak brea-king and the nature of the higgs field. In this paper we reanalyze the electroweak observables in theorie…

hep-ph2020

Consistent QFT description of non-standard neutrino interactions

Adam Falkowski, Martín González-Alonso, Zahra Tabrizi

Neutrino oscillations are precision probes of new physics beyond the Standard Model. Apart from neutrino masses and mixings, they are also sensitive to possible deviations of low-e…

hep-ph2019

The CKM parameters in the SMEFT

Sébastien Descotes-Genon, Adam Falkowski, Marco Fedele +2

The extraction of the Cabibbo-Kobayashi-Maskawa (CKM) matrix from flavour observables can be affected by physics beyond the Standard Model (SM). We provide a general roadmap to tak…

hep-ph2011

Spinning the Top

Adam Falkowski, Gilad Perez, Martin Schmaltz

We propose to measure the threshold lepton asymmetry, that is the forward-backward asymmetry of the charged lepton in ttbar events near the production threshold. At threshold top q…

hep-ph2020

Flavourful SMEFT likelihood for Higgs and electroweak data

Adam Falkowski, David Straub

We perform an updated fit to LHC Higgs data and LEP electroweak precision tests in the framework of the Standard Model Effective Field Theory (SMEFT). We assume a generic structure…

hep-ph2012

Data driving the top quark forward--backward asymmetry with a lepton-based handle

Adam Falkowski, Michelangelo L. Mangano, Adam Martin +2

We propose that, within the standard model, the correlation between the forward--backward asymmetry and the corresponding lepton-based asymmetry -- a…

hep-ph2015

Lepton Flavor Non-Universality in B-meson Decays from a U(2) Flavor Model

Adam Falkowski, Marco Nardecchia, Robert Ziegler

We address the recent anomalies in semi-leptonic -meson decays using a model of fermion masses based on the flavor symmetry. The new contributions to

hep-ph2008

Holographic Unhiggs

Adam Falkowski, Manuel Perez-Victoria

We propose an extra-dimensional approach to the unparticle Higgs (Unhiggs). The non-local 4D Unhiggs action is derived as the boundary effective action of a local 5D theory. We rev…

hep-th2024

Matching and positivity beyond minimal coupling

Edoardo Alviani, Adam Falkowski

We study the low-energy effective theories of photons and gravitons, matching them at one loop to a UV completion with a massive spinning matter particle. The matter is allowed to…

hep-ph2018

Flavourful portal for vector-like neutrino Dark Matter and

Adam Falkowski, Stephen F. King, Elena Perdomo +1

We discuss a flavourful portal model with a coupling to fourth-family singlet Dirac neutrino dark matter. In the absence of mixing, the is fermiophobic, having no couplin…

hep-ph2025

On the Coulomb corrections in nuclear beta decay

Edoardo Alviani, Adam Falkowski

We propose a Lorentz invariant and little group covariant description of beta decay amplitudes relying on on-shell amplitude methods and the spinor variables for massive particles.…

hep-ph2019

Hadronic tau decays as New Physics probes in the LHC era

Vincenzo Cirigliano, Adam Falkowski, Martín González-Alonso +1

We analyze the sensitivity of hadronic tau decays to non-standard interactions within the model-independent framework of the Standard Model Effective Field Theory (SMEFT). Both exc…

hep-ph2018

Light Dark Matter from Leptogenesis

Adam Falkowski, Eric Kuflik, Noam Levi +1

We consider the implications of a shared production mechanism between the baryon asymmetry of the universe and the relic abundance of dark matter, that does not result in matching…

hep-ph2008

A Simple Flavor Protection for RS

Csaba Csaki, Adam Falkowski, Andreas Weiler

We present a simple variation of warped flavor models where the hierarchies of fermion masses and mixings are still explained but dangerous flavor violating effects in the Kaon sec…

hep-ph2017

Anomalous Triple Gauge Couplings in the Effective Field Theory Approach at the LHC

Adam Falkowski, Martin Gonzalez-Alonso, Admir Greljo +2

We discuss how to perform consistent extractions of anomalous triple gauge couplings (aTGC) from electroweak boson pair production at the LHC in the Standard Model Effective Field…

hep-ph2015

Model-independent precision constraints on dimension-6 operators

Adam Falkowski, Francesco Riva

We discuss electroweak precision constraints on dimension-6 operators in the effective theory beyond the standard model. We identify the combinations of these operators that are co…

hep-ph2008

The Flavor of the Composite Pseudo-Goldstone Higgs

Csaba Csaki, Adam Falkowski, Andreas Weiler

We study the flavor structure of 5D warped models that provide a dual description of a composite pseudo-Goldstone Higgs. We first carefully re-examine the flavor constraints on the…

hep-ph2005

Double protection of the Higgs potential

Zurab Berezhiani, Piotr H. Chankowski, Adam Falkowski +1

A mechanism of double protection of the Higgs potential, by supersymmetry and by a global symmetry, is investigated in a class of supersymmetric models with the SU(3)xSU(3)xU(1) ga…

hep-ph2022

Off-shell Higgs Interpretations Task Force: Models and Effective Field Theories Subgroup Report

Aleksandr Azatov, Jorge de Blas, Adam Falkowski +8

This report presents the results of the Models and Effective Field Theories Subgroup of the Off-Shell Interpretations Task Force in the LHC Higgs Working Group. The main goal of th…

hep-ph2010

Unburied Higgs

Adam Falkowski, David Krohn, Jessie Shelton +2

Many models of physics beyond the Standard Model yield exotic Higgs decays. Some of these, particularly those in which the Higgs decays to light quarks or gluons, can be very diffi…

hep-ph2015

Global constraints on anomalous triple gauge couplings in effective field theory approach

Adam Falkowski, Martin Gonzalez-Alonso, Admir Greljo +1

We present a combined analysis of LHC Higgs data (signal strengths) together with LEP-2 WW production measurements. To characterize possible deviations from the Standard Model (SM)…