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BEGIN:VEVENT
SUMMARY:Stealth dark matter and gravitational waves
DTSTART;VALUE=DATE-TIME:20190619T020000Z
DTEND;VALUE=DATE-TIME:20190619T022000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428284@indico.cern.ch
DESCRIPTION:Speakers: David Schaich ()\nI will present ongoing investigati
ons into the finite-temperature dynamics of stealth dark matter\, which ad
ds to the standard model a new SU(4) gauge sector with four moderately hea
vy fundamental fermions. The lightest scalar SU(4) `baryon' is the compos
ite dark matter candidate. With the Lattice Strong Dynamics Collaboration
\, I am building on our past studies of direct detection and collider sear
ches for stealth dark matter by analyzing the early-universe SU(4) confine
ment transition\, which produces a stochastic background of gravitational
waves if it is first order. I will present the parameter space in which w
e observe such a first-order transition\, and discuss the quantities we ar
e analyzing in order to predict the resulting gravitational wave spectrum.
\n\nhttps://indico.cern.ch/event/764552/contributions/3428284/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428284/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Fits of SU(3) N_f=8 data to dilaton-pion effective field theory
DTSTART;VALUE=DATE-TIME:20190620T085000Z
DTEND;VALUE=DATE-TIME:20190620T091000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428289@indico.cern.ch
DESCRIPTION:Speakers: Maarten Golterman (San Francisco State University)\n
We report on fits of the SU(3) N_f=8 LSD spectral data to chiral\nperturba
tion theory with a dilatonic meson. These fits confirm that\ncurrent sim
ulations are in the ``large-mass'' regime\, with approximate\nhyperscaling
as the leading mass dependence. We find that the\nleading-order effect
ive field theory describes the data well. In\nparticular\, the effective
field theory allows us to understand the\nstaggered taste splitting\, exp
laining the pattern observed in the LSD\ndata\, which looks different from
QCD.\n\nhttps://indico.cern.ch/event/764552/contributions/3428289/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428289/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Walking\, the dilaton\, and complex CFT (II)
DTSTART;VALUE=DATE-TIME:20190620T064000Z
DTEND;VALUE=DATE-TIME:20190620T070000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428290@indico.cern.ch
DESCRIPTION:Speakers: chik him wong (University of Wuppertal)\nAfter devel
oping the full implementation of the Implicit Maximum Likelihood Method\,
we discuss new tests of the dilaton low-energy effective field theory in t
he near-conformal paradigm with emergent light scalars in the sextet and e
ight-flavor models.\n\nhttps://indico.cern.ch/event/764552/contributions/3
428290/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428290/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Constructing a composite Higgs model with built-in large separatio
n of scales
DTSTART;VALUE=DATE-TIME:20190620T081000Z
DTEND;VALUE=DATE-TIME:20190620T083000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428286@indico.cern.ch
DESCRIPTION:Speakers: Oliver Witzel (University of Colorado Boulder)\nExpe
rimentally a light 125 GeV Higgs boson has been observed but so far no oth
er heavier resonances. Viable models to describe the Higgs boson as compos
ite particle require hence to exhibit a large separation of scales which e
.g. occurs in systems located near a conformal fixed point.\n\nFirst I pre
sent our nonperturbative gradient flow step-scaling calculation of the ren
ormalization group beta function for an SU(3) gauge theory with 10 massles
s\, fundamental flavors. The steps of our calculation are detailed and th
e quality of our set-up using stout-smeared MÃ¶bius domain wall fermions w
ith Symanzik gauge action combined with Zeuthen flow measurements is demon
strated. Taking advantage of our step-scaling results\, I will use the sam
e set-up to construct a mass-split composite Higgs model with large scale
separation\, show first results\, and demonstrate some of its features. Th
is work is part of the research program by the LSD collaboration.\n\nhttps
://indico.cern.ch/event/764552/contributions/3428286/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428286/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Continuum limit of SU(3) N=1 supersymmetric Yang-Mills theory and
supersymmetric gauge theories on the lattice
DTSTART;VALUE=DATE-TIME:20190619T033000Z
DTEND;VALUE=DATE-TIME:20190619T035000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428291@indico.cern.ch
DESCRIPTION:Speakers: Georg Bergner (Theoretisch-Physikalisches Institut\,
Universit\\"at Jena)\nIn this presentation I will provide an overview of
our investigations of supersymmetric gauge theories. I summarize our final
results of SU(3) $\\mathcal{N}=1$ supersymmetric Yang-Mills theory that a
llow for the first time an extrapolation to the continuum limit. This resu
lt shows that the symmetry is recovered in the continuum limit. I will rev
iew our recent approaches towards a simulation of more general supersymmet
ric gauge theories. This includes the first tests of simulations with dyna
mical overlap fermions.\n\nhttps://indico.cern.ch/event/764552/contributio
ns/3428291/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428291/
END:VEVENT
BEGIN:VEVENT
SUMMARY:$\\mathcal{N}=1$ Supersymmetric SU(3) Gauge Theory with a Twist
DTSTART;VALUE=DATE-TIME:20190619T035000Z
DTEND;VALUE=DATE-TIME:20190619T041000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428295@indico.cern.ch
DESCRIPTION:Speakers: Marc Steinhauser (Friedrich Schiller University Jena
)\nWe investigate the pure gauge sector of Super-QCD\, i.e. Super-Yang-Mil
ls (SYM) theory\, with focus on the bound states. To improve chiral symmet
ry as well as supersymmetry at finite lattice spacing\, we use a deformed
SYM lattice action. It contains a twist term\, similar to the lattice form
ulation of twisted mass QCD. We present the status of our theoretical and
numerical investigation.\n\nhttps://indico.cern.ch/event/764552/contributi
ons/3428295/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428295/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sp(2N) Yang-Mills towards large N.
DTSTART;VALUE=DATE-TIME:20190621T064000Z
DTEND;VALUE=DATE-TIME:20190621T070000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428294@indico.cern.ch
DESCRIPTION:Speakers: Jack Holligan ()\nOwing to their importance for BSM
model building\, understanding the non-perturbative physics of Sp(2N) gaug
e theories is of high importance due to their large-N extrapolations. In t
his talk\, we examine the glueball spectrum of Yang-Mills theories based o
n symplectic groups. Glueball masses are calculated numerically with a var
iational method from Monte Carlo generated gauge configurations. After per
forming a continuum extrapolation for N=1\,2\,3 and 4\, we use the obtaine
d continuum limit to determine masses at large N. We compare the resulting
spectrum with that of SU(N) in the same limit.\n\nhttps://indico.cern.ch/
event/764552/contributions/3428294/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428294/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Constraining EFTs in a Theory with Light Composite Scalars
DTSTART;VALUE=DATE-TIME:20190620T083000Z
DTEND;VALUE=DATE-TIME:20190620T085000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428288@indico.cern.ch
DESCRIPTION:Speakers: George Fleming (Yale University)\nThe Lattice Strong
Dynamics (LSD) collaboration has been studying SU(3) Yang-Mills with eigh
t light flavors of Dirac fermions. This theory has accumulating numerical
evidence for near conformal dynamics and a light composite isosinglet sca
lar meson. It could serve as a prototype of a composite Higgs sector if a
reliable low-energy Effective Field Theory (EFT) could be identified. Se
veral candidate EFTs have been proposed. I will summarize our efforts to
constrain these EFTs using computed observables\, including pion and scala
r masses\, decay constants and scattering lengths.\n\nhttps://indico.cern.
ch/event/764552/contributions/3428288/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428288/
END:VEVENT
BEGIN:VEVENT
SUMMARY:A study of thermal SU(3) supersymmetric Yang-Mills theory and near
-conformal theories from the gradient flow
DTSTART;VALUE=DATE-TIME:20190620T091000Z
DTEND;VALUE=DATE-TIME:20190620T093000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428296@indico.cern.ch
DESCRIPTION:Speakers: Camilo Lopez (Theoretisch-Physikalisches Institut\,
Universit\\"at Jena)\nIn recent years\, gradient flows of Yang-Mills and s
pinor fields have opened new possibilities in lattice simulations. I will
focus on two applications of this method. Firstly\, it has been shown that
flowed composite local operators\, like condensates and currents\, are re
normalised independently of the regularisation scheme. This facilitates th
e study of thermal phase transitions\, e.g. in supersymmetric theories. In
previous studies we had found that the restoration of the non-anomalous
chiral symmetry and the breaking of the centre symmetry occur simultaneous
ly in SU(2) supersymmetric Yang-Mills theory. I will show new results for
the gauge group SU(3). The gradient flow is also tightly related to renorm
alisation group transformations. This can be exploited to directly compute
the spectrum of operator dimensions in quantum field theories with an IR
conformal point. In this regard I will discuss the computation of the mass
anomalous dimension in near-conformal adjoint QCD with N${_f}=2$ and $\\f
rac{3}{2}$.\n\nhttps://indico.cern.ch/event/764552/contributions/3428296/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428296/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Towards a holographic description of cosmology (I): Phase diagram
of 3d SU(N) matrix field theory
DTSTART;VALUE=DATE-TIME:20190619T010000Z
DTEND;VALUE=DATE-TIME:20190619T012000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428278@indico.cern.ch
DESCRIPTION:Speakers: Andreas Juettner ()\nThe holographic principle allow
s us to study the physics of the early universe in terms of three-dimensio
nal boundary quantum field theories. For instance\, the power spectrum of
the CMB at high multipoles has in this way been post-dicted successfully i
n terms of calculations for 2pt functions of the energy-momentum tensor (E
MT) in perturbation theory. The lower end of the power spectrum maps onto
dynamics non-perturbative in nature and are therefore best predicted by la
ttice simulations.\n\nHere we study massless SU(N) scalar matrix field the
ory on the lattice as a first candidate theory. We present a comprehensive
study of its critical properties in terms of a finite-size-scaling study
and its large-N scaling both numerically and analytically.\n\nIn a next st
ep we compute 2pt functions of the EMT in this theory which will allow us
to make first lattice-based predictions for the spectrum of the CMB at low
multipoles. Results for the EMT 2pt function and its renormalisation are
discussed in the talk by Joseph Lee.\n\nhttps://indico.cern.ch/event/76455
2/contributions/3428278/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428278/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Investigation of N=1 supersymmetric Yang-Mills theory
DTSTART;VALUE=DATE-TIME:20190619T031000Z
DTEND;VALUE=DATE-TIME:20190619T033000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428281@indico.cern.ch
DESCRIPTION:Speakers: Philipp Scior (UniversitÃ¤t Bielefeld)\nWe summarize
the latest results from our numerical simulations of supersymmetric Yang-
Mills theory with two and three colors. For gauge group SU(2) we use an op
timized variational method with an extended operator basis to extract the
masses of groundstates and excited states in the scalar\, pseudoscalar and
spin 1/2 sector. The extrapolations to the chiral and continuum limits in
dicate the formation of supermultiplets for both ground and excited states
. Further\, due to the extended operator basis\, we are able to investigat
e the mixing content of the physical states. For gauge group SU(3) we have
extracted the ground state masses in the scalar\, pseudoscalar and spin 1
/2 channels. Using a combined extrapolation towards the chiral and continu
um limit\, we find the formation of a bound state supermultiplet\, too.\n\
nhttps://indico.cern.ch/event/764552/contributions/3428281/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428281/
END:VEVENT
BEGIN:VEVENT
SUMMARY:chiral condensate and suscptiblity of SU(2) $n_f=8$ naive staggere
d system
DTSTART;VALUE=DATE-TIME:20190620T060000Z
DTEND;VALUE=DATE-TIME:20190620T062000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428280@indico.cern.ch
DESCRIPTION:Speakers: Issaku Kanamori (R-CCS\, RIKEN)\nSU(2) 8 fundamental
flavor system with naive staggered fermion has a phase transition or cros
sover at strong coupling\, which seems to be a bulk transition.\nBy using
chiral random matrix model we analyse the chiral condensate of this sytem.
\nWe also report the chiral susceptibility and its volume dependence near
the transition point.\n\nhttps://indico.cern.ch/event/764552/contributions
/3428280/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428280/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The flavor dependence of $m_\\varrho / f_\\pi$
DTSTART;VALUE=DATE-TIME:20190620T072000Z
DTEND;VALUE=DATE-TIME:20190620T074000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428297@indico.cern.ch
DESCRIPTION:Speakers: Daniel Nogradi ()\nThe dimensionless ratio $m_\\varr
ho / f_\\pi$ is computed in the continuum and chiral limit for SU(3) gauge
theory coupled to $N_f = 2\,3\,4\,5\,6$ fundamental fermions. All systema
tics (finite volume\, finite fermion mass\, finite cut-off) are controlled
and the final results show no statistically significant $N_f$-dependence.
\n\nhttps://indico.cern.ch/event/764552/contributions/3428297/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428297/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Towards a holographic description of cosmology (II): Renormalisati
on of the 3D SU(N) scalar energy-momentum tensor
DTSTART;VALUE=DATE-TIME:20190619T012000Z
DTEND;VALUE=DATE-TIME:20190619T014000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428279@indico.cern.ch
DESCRIPTION:Speakers: Joseph Lee (University of Edinburgh)\nIn holographic
cosmology\, cosmological observables are described in terms of correlator
s of a three-dimensional boundary quantum field theory. In this talk\, we
study the renormalisation of the energy-momentum tensor 2 point function f
or 3D massless $SU(N)$ scalar matrix field theory. We present a non-pertur
bative procedure to remove divergences resulting from the loss of translat
ional invariance on the lattice\, by imposing Ward identities. This will a
llow us to make non-perturbative predictions for the CMB power spectrum at
low multipoles\, assuming the holographic theory describing the very earl
y Universe is the 3D massless $SU(N)$ scalar matrix field theory.\n\nhttps
://indico.cern.ch/event/764552/contributions/3428279/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428279/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Toward the spectrum of the SU(2) adjoint Higgs model
DTSTART;VALUE=DATE-TIME:20190619T014000Z
DTEND;VALUE=DATE-TIME:20190619T020000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428282@indico.cern.ch
DESCRIPTION:Speakers: Vincenzo Afferrante (University of Graz)\nHiggs part
icles in the adjoint representation of a non-Abelian gauge theory play an
important role in many scenarios beyond the standard model\, especially gr
and-unified theories\, partial compositeness models\, and (broken) supersy
mmetric theories. However\, recently new analytic results based on gauge-i
nvariant perturbation theory have arisen\, which require a reevaluation of
the observable\, physical spectrum of such theories.\n\nLattice methods a
re used to determine this spectrum\, and test the underlying predictions.
To this end\, an SU(2) gauge theory with a single adjoint Higgs is simulat
ed. In the Brout-Englert-Higgs phase it is predicted that this theory exh
ibits a massless\, composite and gauge-invariant vector state. This model
can then be a well defined way to obtain a low energy QED from a GUT that
comprehends it. \n\nIt is needed to find simulation points where the Brout
-Englert-Higgs effect is present. In these points the physical spectrum as
well as the properties of the elementary particles will be investigated i
n multiple channels. We have found preliminary results about the presence
of a massless vector bound state\, and also about the phase diagram of the
theory.\n\nhttps://indico.cern.ch/event/764552/contributions/3428282/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428282/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Case studies of near-conformal and conformal beta-functions
DTSTART;VALUE=DATE-TIME:20190620T070000Z
DTEND;VALUE=DATE-TIME:20190620T072000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428303@indico.cern.ch
DESCRIPTION:Speakers: Kieran Holland ()\nWe give an update on our lattice
studies of the beta-function for near-conformal and conformal gauge theori
es. These include 10\, 12 and 13 flavors in the fundamental representation
\, and 2 flavors in the sextet representation of SU(3). We discuss the ove
rall trends and new developments.\n\nhttps://indico.cern.ch/event/764552/c
ontributions/3428303/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428303/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Walking\, the dilaton\, and complex CFT (I)
DTSTART;VALUE=DATE-TIME:20190620T062000Z
DTEND;VALUE=DATE-TIME:20190620T064000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428300@indico.cern.ch
DESCRIPTION:Speakers: Julius Kuti ()\nWe compare the absence of the confor
mal fixed point in the near-conformal gauge theory paradigm with the alter
nate hypothesis where a complex conjugate pair of conformal fixed points d
rives the slow scale-dependence (walking) of the renormalized gauge coupli
ng. The complex conformal fixed points would control the scale-dependent a
nomalous dimensions and the EFT of Goldstone pions coupled to the emergent
light scalar\, perhaps the dilaton of scale symmetry breaking.\n\nhttps:/
/indico.cern.ch/event/764552/contributions/3428300/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428300/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Resonance study of SU(2) model with 2 fundamental flavours of ferm
ions.Resonance study of SU(2) model with 2 fundamental flavours of fermion
s.
DTSTART;VALUE=DATE-TIME:20190621T060000Z
DTEND;VALUE=DATE-TIME:20190621T062000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428287@indico.cern.ch
DESCRIPTION:Speakers: Tadeusz Janowski ()\nComposite Higgs models are very
promising candidate models to address\nthe long-standing naturalness prob
lem in the Standard Model.\nAmong them\, the most minimal one is the SU(2)
with 2 flavours of\nfermions in the fundamental representation of the gau
ge group.\nAn important prediction in these models is the existence of res
onance\nspectrum in vector boson scattering. In this talk I will describe
our\nstudy of the lowest such resonance\, which is the equivalent of rho\n
resonance in QCD.\nI will describe the scan of the parameter space using t
he\nclover-improved Wilson fermions with Symanzik improved gauge action an
d\nthen show the first results for the mass and width of the rho resonance
\nin this model.\n\nhttps://indico.cern.ch/event/764552/contributions/3428
287/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428287/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Meson spectrum of Sp(4) lattice gauge theory with two fundamental
Dirac fermions
DTSTART;VALUE=DATE-TIME:20190621T062000Z
DTEND;VALUE=DATE-TIME:20190621T064000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428283@indico.cern.ch
DESCRIPTION:Speakers: Jong-Wan Lee (Pusan National University)\nWe calcula
te the meson spectrum of Sp(4) lattice gauge theory coupled to two fundame
ntal flavors of dynamical Dirac fermions\, where we focus on the lowest (f
lavored) spin-0 and spin-1 states. Such theories are often considered in t
he phenomenological models of composite Higgs and self-interacting dark ma
tter. We carry out continuum extrapolations using four different values of
lattice couplings\, and fit the resulting masses and decay constants to e
ffective field theory. Our results are then compared with quenched ones an
d those of other similar gauge theories.\n\nhttps://indico.cern.ch/event/7
64552/contributions/3428283/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428283/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Towards a composite Higgs and a partially composite top quark
DTSTART;VALUE=DATE-TIME:20190621T070000Z
DTEND;VALUE=DATE-TIME:20190621T072000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428299@indico.cern.ch
DESCRIPTION:Speakers: Benjamin Svetitsky (Tel Aviv University)\nWe have ca
lculated quantities of interest to a theory of compositeness. The lattice
model\, approximating the candidate theory\, is the SU(4) gauge theory co
upled to fermions in two color representations. For the composite Higgs\,
a current correlator gives one of the ingredients of the effective Higgs
potential. For the partially composite top quark\, we have hyperbaryon ma
trix elements that govern mixing of the fundamental quark with its heavy c
omposite partner. The matrix elements turn out to be so small that the th
eory is disfavored as a source of a realistic top mass.\n\nhttps://indico.
cern.ch/event/764552/contributions/3428299/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428299/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gauge-invariant path-integral measure for the overalp Weyl fermion
s in 16 of SO(10) and the SM
DTSTART;VALUE=DATE-TIME:20190621T072000Z
DTEND;VALUE=DATE-TIME:20190621T074000Z
DTSTAMP;VALUE=DATE-TIME:20210119T051045Z
UID:indico-contribution-311405-3428292@indico.cern.ch
DESCRIPTION:Speakers: Yoshio Kikukawa (the University of Tokyo)\nWe consid
er the lattice formulation of the SO(10) chiral gauge theory with left-han
ded Weyl fermions in the sixteen dimensional spinor representation (16)/th
e Standard Model in the framework of the Overlap fermion/the Ginsparg-Wils
on relation. We define a manifestly gauge-invariant path-integral measure
for the left-handed Weyl field using all the components of the Dirac field
\, but the right-handed part of which is just saturated completely by inse
rting a suitable product of the SO(10)-invariant 't Hooft vertices in term
s of the right-handed field. We also discuss the relations of our formulat
ion to other approaches/proposals to decouple the species-doubling/mirror
degrees of freedom. Those include Eichten-Preskill model\, Ginsparg-Wilson
Mirror-fermion model\, Domain wall fermion model with the boundary Eichte
n-Preskill term\, and 4D Topological Insulator/Superconductor with gapped
boundary phase. We clarify the similarity and the difference in technical
detail and show that our proposal is a well-defined and unified testing gr
ound for that basic question.\n\nhttps://indico.cern.ch/event/764552/contr
ibutions/3428292/
LOCATION: Shimao 3B
URL:https://indico.cern.ch/event/764552/contributions/3428292/
END:VEVENT
END:VCALENDAR