pinecone/core-2020-05-10-deduplication huggingface dataset:
A natural $ S_4 \times SO(10) $ model of flavour

We propose a natural $ S_4 \times SO(10) $ supersymmetric grand unified
theory of flavour with an auxiliary $\mathbb{Z}_4^2 \times \mathbb{Z}_4^R$
symmetry, based on small Higgs representations (nothing larger than an adjoint)
and hence a type-I seesaw mechanism. The Yukawa structure of all fermions is
determined by the hierarchical vacuum expectation values of three $ S_4 $
triplet flavons, with CSD3 vacuum alignments, where up-type quarks and
neutrinos couple to one Higgs $\mathbf{10}$, and the down-type quarks and
charged leptons couple to a second Higgs $\mathbf{10}$. The Yukawa matrices are
obtained from sums of low-rank matrices, where each matrix in the sum naturally
accounts for the mass of a particular family, as in sequential dominance in the
neutrino sector, which predicts a normal neutrino mass hierarchy. The model
accurately fits all available quark and lepton data, with predictions for the
leptonic $CP$ phase in 95$\%$ credible intervals given by $ 281^\circ <
\delta^\ell < 308^\circ $ and $ 225^\circ < \delta^\ell < 253^\circ $. The
model reduces to the MSSM, with the two Higgs doublets emerging from the two
Higgs $\mathbf{10}$s without mixing, and we demonstrate how a $\mu$ term of
$\mathcal{O}$(TeV) can be realised, as well as doublet-triplet splitting, with
Planck scale operators controlled by symmetry, leading to acceptable proton
decay.Comment: 22 pages, 4 figures. Matches published versio
First order flow equations for nonextremal black holes in AdS
  (super)gravity

We consider electrically charged static nonextremal black holes in
$d$-dimensional Einstein-Maxwell-(A)dS gravity, whose horizon is a generic
Einstein space in $d-2$ dimensions. It is shown that for this system the
Hamilton-Jacobi equation is exactly solvable and admits two branches of
solutions. One of them exhibits a non-simply connected domain of integration
constants and does not reduce to the well-known solution for the $d=4$ BPS
case. The principal functions generate two first order flows that are
analytically different, but support the same general solution. One of the two
sets of flow equations corresponds to those found by L\"u, Pope and
V\'azquez-Poritz in hep-th/0307001 and (for $d=4$ and $\Lambda=0$) by Miller,
Schalm and Weinberg in hep-th/0612308. This clarifies also the reason for the
very existence of first order equations for nonextremal black holes, namely,
they are just the expressions for the conjugate momenta in terms of derivatives
of the principal function in a Hamilton-Jacobi formalism. In the last part of
our paper we analyze how much of these integrability properties generalizes to
matter-coupled $N=2$, $d=4$ gauged supergravity.Comment: 17 pages. v2: Refs. added. v3: Final version to appear in JHE
Reducing the Top Quark Mass Uncertainty with Jet Grooming

The measurement of the top quark mass has large systematic uncertainties
coming from the Monte Carlo simulations that are used to match theory and
experiment. We explore how much that uncertainty can be reduced by using jet
grooming procedures. We estimate the inherent ambiguity in what is meant by
Monte Carlo mass to be around 530 MeV without any corrections. This uncertainty
can be reduced by 60% to 200 MeV by calibrating to the W mass and a further 33%
to 140 MeV by applying soft-drop jet grooming (or by 20% more to 170 MeV with
trimming). At e+e- colliders, the associated uncertainty is around 110 MeV,
reducing to 50 MeV after calibrating to the W mass. By analyzing the tuning
parameters, we conclude that the importance of jet grooming after calibrating
to the W mass is to reduce sensitivity to the underlying event.Comment: 21 pages, 7 figure
Observables and Dispersion Relations in k-Minkowski Spacetime

We revisit the notion of quantum Lie algebra of symmetries of a
noncommutative spacetime, its elements are shown to be the generators of
infinitesimal transformations and are naturally identified with physical
observables. Wave equations on noncommutative spaces are derived from a quantum
Hodge star operator. This general noncommutative geometry construction is then
exemplified in the case of k-Minkowski spacetime. The corresponding quantum
Poincare'-Weyl Lie algebra of infinitesimal translations, rotations and
dilatations is obtained. The d'Alembert wave operator coincides with the
quadratic Casimir of quantum translations and it is deformed as in Deformed
Special Relativity theories. Also momenta (infinitesimal quantum translations)
are deformed, and correspondingly the Einstein-Planck relation and the de
Broglie one. The energy-momentum relations (dispersion relations) are
consequently deduced. These results complement those of the phenomenological
literature on the subject.Comment: 30 pages. Revised version further motivating Poincare'-Weyl
  (conformal) symmetry. Added explicit proof of covariance of massive scalar
  fields wave equation under quantum translations (eq. (76)). To appear in JHE
CFT descriptions of bulk local states in the AdS black holes

We present a new method for reconstructing CFT duals of states excited by the
bulk local operators in the three dimensional AdS black holes in the AdS/CFT
context. As an important procedure for this, we introduce a map between the
bulk points in AdS and those on the boundary where CFT lives. This gives a
systematic and universal way to express bulk local states even inside black
hole interiors. Our construction allows us to probe the interior structures of
black holes purely from the CFT calculations. We analyze bulk local states in
the single-sided black holes as well as the double-sided black holes.Comment: 38pages, Late
Exploring Charge and Color Breaking vacuum in Non-Holomorphic MSSM

Non-Holomorphic MSSM (NHSSM) shows various promising features that are not
easily obtained in MSSM. However, the additional Non-Holomorphic (NH) trilinear
interactions that attribute to the interesting phenomenological features, also
modify the effective scalar potential of the model significantly. We derive
analytic constraints involving trilinear parameters $A_t'$ and $A_b'$ that
exclude global charge and color breaking minima (CCB). Since the analytic
constraints are obtained considering specific directions in the
multi-dimensional field space, we further probe the applicability of these
constraints by exhaustive scan over NH parameter space with two different
regimes of $\tan\beta$ and delineate the nature of metastability by considering
vacuum expectation values for third generation squarks. We adhere to a natural
scenario by fixing Higgsino mass parameter ($\mu$) to a low value and estimate
the allowed ranges of NH trilinear parameters by considering vacuum stability
and observed properties of Higgs as the determining criteria.Comment: 29 pages, 10 figures, Results section elaborated, conclusion
  unchanged, published in JHE
Predictions from a flavour GUT model combined with a SUSY breaking
  sector

We discuss how flavour GUT models in the context of supergravity can be
completed with a simple SUSY breaking sector, such that the flavour-dependent
(non-universal) soft breaking terms can be calculated. As an example, we
discuss a model based on an SU(5) GUT symmetry and $A_4$ family symmetry, plus
additional discrete "shaping symmetries" and a $\mathbb{Z}_4^\mathrm{R}$
symmetry. We calculate the soft terms and identify the relevant high scale
input parameters, and investigate the resulting predictions for the low scale
observables, such as flavour violating processes, the sparticle spectrum and
the dark matter relic density.Comment: 24 pages, 3 figure
Strange and charm HVP contributions to the muon ($g - 2)$ including QED
  corrections with twisted-mass fermions

We present a lattice calculation of the Hadronic Vacuum Polarization (HVP)
contribution of the strange and charm quarks to the anomalous magnetic moment
of the muon including leading-order electromagnetic corrections. We employ the
gauge configurations generated by the European Twisted Mass Collaboration
(ETMC) with $N_f = 2+1+1$ dynamical quarks at three values of the lattice
spacing ($a \simeq 0.062, 0.082, 0.089$ fm) with pion masses in the range
$M_\pi \simeq 210 - 450$ MeV. The strange and charm quark masses are tuned at
their physical values. Neglecting disconnected diagrams and after the
extrapolations to the physical pion mass and to the continuum limit we obtain:
$a_\mu^s(\alpha_{em}^2) = (53.1 \pm 2.5) \cdot 10^{-10}$,
$a_\mu^s(\alpha_{em}^3) = (-0.018 \pm 0.011) \cdot 10^{-10}$ and
$a_\mu^c(\alpha_{em}^2) = (14.75 \pm 0.56) \cdot 10^{-10}$,
$a_\mu^c(\alpha_{em}^3) = (-0.030 \pm 0.013) \cdot 10^{-10}$ for the strange
and charm contributions, respectively.Comment: 34 pages, 10 figures, 5 tables; version to appear in JHE
T-branes, Anomalies and Moduli Spaces in 6D SCFTs

The worldvolume theory of M5-branes on an ADE singularity
$\mathbb{R}^5/\Gamma_G$ can be Higgsed in various ways, corresponding to the
possible nilpotent orbits of $G$. In the F-theory dual picture, this
corresponds to activating T-brane data along two stacks of 7-branes and yields
a tensor branch realization for a large class of 6D SCFTs. In this paper, we
show that the moduli spaces and anomalies of these T-brane theories are related
in a simple, universal way to data of the nilpotent orbits. This often works in
surprising ways and gives a nontrivial confirmation of the conjectured
properties of T-branes in F-theory. We use this result to formally engineer a
class of theories where the IIA picture na\"ively breaks down. We also give a
proof of the $a$-theorem for all RG flows within this class of T-brane
theories.Comment: 49 pages, references added v2; v3 published in JHE
Supersymmetric branes and instantons on curved spaces

We discuss non-linear instantons in supersymmetric field theories on curved
spaces arising from D-branes. Focusing on D3-branes and four-dimensional field
theories, we derive the supersymmetry conditions and show the intimate relation
between the instanton solutions and the non-linearly realized supersymmetries
of the field theory. We demonstrate that field theories with non-linearly
realized supersymmetries are coupled to supergravity backgrounds in a similar
fashion as those with linearly realized supersymmetries, and provide details on
how to derive such couplings from a type II perspective.Comment: 48 pages, v2: minor change
Bayesian analysis and naturalness of (Next-to-)Minimal Supersymmetric
  Models

The Higgs boson discovery stirred interest in next-to-minimal supersymmetric
models, due to the apparent fine-tuning required to accommodate it in minimal
theories. To assess their naturalness, we compare fine-tuning in a
$\mathbb{Z}_3$ conserving semi-constrained Next-to-Minimal Supersymmetric
Standard Model (NMSSM) to the constrained MSSM (CMSSM). We contrast popular
fine-tuning measures with naturalness priors, which automatically appear in
statistical measures of the plausibility that a given model reproduces the weak
scale. Our comparison shows that naturalness priors provide valuable insight
into the hierarchy problem and rigorously ground naturalness in Bayesian
statistics. For the CMSSM and semi-constrained NMSSM we demonstrate qualitative
agreement between naturalness priors and popular fine tuning measures. Thus, we
give a clear plausibility argument that favours relatively light superpartners.Comment: 52 pages, 11 figures and 3 tables, Published in JHE
Solving CFTs with Weakly Broken Higher Spin Symmetry

The method of large spin perturbation theory allows to analyse conformal
field theories (CFT) by turning the crossing equations into an algebraic
problem. We apply this method to a generic CFT with weakly broken higher spin
(HS) symmetry, to the first non-trivial order in the breaking parameter. We
show that the spectrum of broken currents, for any value of the spin, follows
from crossing symmetry. After discussing a generic model of a single scalar
field, we focus on vector models with $O(N)$ global symmetry. We rediscover the
spectrum of several models, including the $O(N)$ Wilson-Fisher model around
four dimensions, the large $O(N)$ model in $2<d<4$ and cubic models around six
dimensions, not necessarily unitary. We also discuss models where the
fundamental field is not part of the spectrum. Examples of this are weakly
coupled gauge theories and our method gives an on-shell gauge invariant way to
study them. At first order in the coupling constant we show that again the
spectrum follows from crossing symmetry, to all values of the spin. Our method
provides an alternative to usual perturbation theory without any reference to a
Lagrangian.Comment: 30 pages,v2:typos correcte
Vector SIMP dark matter

Strongly Interacting Massive Particles (SIMPs) have recently been proposed as
light thermal dark matter relics. Here we consider an explicit realization of
the SIMP mechanism in the form of vector SIMPs arising from an $SU(2)_X$ hidden
gauge theory, where the accidental custodial symmetry protects the stability of
the dark matter. We propose several ways of equilibrating the dark and visible
sectors in this setup. In particular, we show that a light dark Higgs portal
can maintain thermal equilibrium between the two sectors, as can a massive dark
vector portal with its generalized Chern-Simons couplings to the vector SIMPs,
all while remaining consistent with experimental constraints.Comment: 27 pages, 5 figures, Published versio
The complex null string, Galilean conformal algebra and scattering
  equations

The scattering equation formalism for scattering amplitudes, and its stringy
incarnation, the ambitwistor string, remains a mysterious construction. In this
paper, we pursue the study a gauged-unfixed version of the ambitwistor string
known as the null string. We explore the following three aspects in detail; its
complexification, gauge fixing, and amplitudes. We first study the
complexification of the string; the associated symmetries and moduli, and
connection to the ambitwistor string. We then look in more details at the
leftover symmetry algebra of the string, called Galilean conformal algebra; we
study its local and global action and gauge-fixing. We finish by presenting an
operator formalism, that we use to compute tree-level scattering amplitudes
based on the scattering equations and a one-loop partition function. These
results hopefully will open the way to understand conceptual questions related
to the loop expansion in these twistor-like string models.Comment: References adde
On Dark Matter Interactions with the Standard Model through an Anomalous
  $Z'$

We study electroweak scale Dark Matter (DM) whose interactions with baryonic
matter are mediated by a heavy anomalous $Z'$. We emphasize that when the DM is
a Majorana particle, its low-velocity annihilations are dominated by loop
suppressed annihilations into the gauge bosons, rather than by p-wave or
chirally suppressed annihilations into the SM fermions. Because the $Z'$ is
anomalous, these kinds of DM models can be realized only as effective field
theories (EFTs) with a well-defined cutoff, where heavy spectator fermions
restore gauge invariance at high energies. We formulate these EFTs, estimate
their cutoff and properly take into account the effect of the Chern-Simons
terms one obtains after the spectator fermions are integrated out. We find
that, while for light DM collider and direct detection experiments usually
provide the strongest bounds, the bounds at higher masses are heavily dominated
by indirect detection experiments, due to strong annihilation into $W^+W^-$,
$ZZ$, $Z\gamma$ and possibly into $gg$ and $\gamma\gamma$. We emphasize that
these annihilation channels are generically significant because of the
structure of the EFT, and therefore these models are prone to strong indirect
detection constraints. Even though we focus on selected $Z'$ models for
illustrative purposes, our setup is completely generic and can be used for
analyzing the predictions of any anomalous $Z'$-mediated DM model with
arbitrary charges.Comment: 34 pages, 13 figures; minor plot details amended near resonance
  regions, conclusions unchange
Towards a 2d QFT Analog of the SYK Model

We propose a 2D QFT generalization of the Sachdev-Ye-Kitaev model, which we
argue preserves most of its features. The UV limit of the model is described by
$N$ copies of a topological Ising CFT. The full interacting model exhibits
conformal symmetry in the IR and an emergent pseudo-Goldstone mode that arises
from broken reparametrization symmetry. We find that the effective action of
the Goldstone mode matches with the 3D AdS gravity action, viewed as a
functional of the boundary metric. We compute the spectral density and show
that the leading deviation from conformal invariance looks like a $T \bar{T}$
deformation. We comment on the relation between the IR effective action and
Liouville CFT.Comment: 2+27 pages, 4 figures; v2: ref adde
The Minimal Flavour Violating Axion

The solution to the Strong CP problem is analysed within the Minimal Flavour
Violation (MFV) context. An Abelian factor of the complete flavour symmetry of
the fermionic kinetic terms may play the role of the Peccei-Quinn symmetry in
traditional axion models. Its spontaneous breaking, due to the addition of a
complex scalar field to the Standard Model scalar spectrum, generates the MFV
axion, which may redefine away the QCD theta parameter. It differs from the
traditional QCD axion for its couplings that are governed by the fermion
charges under the axial Abelian symmetry. It is also distinct from the
so-called Axiflavon, as the MFV axion does not describe flavour violation,
while it does induce flavour non-universality effects. The MFV axion
phenomenology is discussed considering astrophysical, collider and flavour
data.Comment: 12 pages, 1 table. V2: References added; version accepted for
  publication in JHE
Dark Matter and the elusive $\mathbf{Z'}$ in a dynamical Inverse Seesaw
  scenario

The Inverse Seesaw naturally explains the smallness of neutrino masses via an
approximate $B-L$ symmetry broken only by a correspondingly small parameter. In
this work the possible dynamical generation of the Inverse Seesaw neutrino mass
mechanism from the spontaneous breaking of a gauged $U(1)$ $B-L$ symmetry is
investigated. Interestingly, the Inverse Seesaw pattern requires a chiral
content such that anomaly cancellation predicts the existence of extra fermions
belonging to a dark sector with large, non-trivial, charges under the $U(1)$
$B-L$. We investigate the phenomenology associated to these new states and find
that one of them is a viable dark matter candidate with mass around the TeV
scale, whose interaction with the Standard Model is mediated by the $Z'$ boson
associated to the gauged $U(1)$ $B-L$ symmetry. Given the large charges
required for anomaly cancellation in the dark sector, the $B-L$ $Z'$ interacts
preferentially with this dark sector rather than with the Standard Model. This
suppresses the rate at direct detection searches and thus alleviates the
constraints on $Z'$-mediated dark matter relic abundance. The collider
phenomenology of this elusive $Z'$ is also discussed.Comment: 20 pages, 2 figures, matches published version in JHE
Weyl versus Conformal Invariance in Quantum Field Theory

We argue that conformal invariance in flat spacetime implies Weyl invariance
in a general curved background metric for all unitary theories in spacetime
dimensions $d \leq 10$. We also study possible curvature corrections to the
Weyl transformations of operators, and show that these are absent for operators
of sufficiently low dimensionality and spin. We find possible `anomalous' Weyl
transformations proportional to the Weyl (Cotton) tensor for $d > 3$ ($d = 3$).
The arguments are based on algebraic consistency conditions similar to the
Wess-Zumino consistency conditions that classify possible local anomalies. The
arguments can be straightforwardly extended to larger operator dimensions and
higher $d$ with additional algebraic complexity.Comment: 30 pages, v3: Version accepted to JHEP, clarifications added and
  typos fixe
Black holes as bubbles of AdS

In this paper we propose that bubbles of AdS within Minkowski spacetime,
stabilized at a finite radius by stiff matter and an electromagnetic gas, can
be an alternative endpoint of gravitational collapse. The bubbles are
horizonless with a size up to 12.5% larger than their Schwarzschild radius
depending on their charge. We argue that they are stable against small
perturbations, and have thermodynamical properties similar to those of real
black holes. We provide a realization of the bubbles within string theory that
relies on a specific brane intersection giving rise to a shell carrying
dissolved charges from lower dimensional D-branes as well as a gas of open
strings. We also note that our construction provides a new way of understanding
the entropy of Reissner-Nordstr\"om black holes in the extremal limit.Comment: References and a few comments added. Published versio
Supersymmetric SYK Model: Bi-local Collective Superfield/Supermatrix
  Formulation

We discuss the bi-local collective theory for the $\mathcal{N}=1,2$
supersymmetric Sachdev-Ye-Kitaev (SUSY SYK) models. We construct a bi-local
superspace, and formulate the bi-local collective superfield theory of the
one-dimensional SUSY vector model. The bi-local collective theory provides
systematic analysis of the SUSY SYK models. We find that this bi-local
collective theory naturally leads to supermatrix formulation in the bi-local
superspace. This supermatrix formulation drastically simplifies the analysis of
the SUSY SYK models. We also study $\mathcal{N}=1$ bi-local superconformal
generators in the supermatrix formulation, and find the eigenvectors of teh
superconformal Casimir. We diagonalize the quadratic action in large $N$
expansion.Comment: 48 page; v2:typo corrected, reference added, notation for the
  eigenfunctions change
Abelianization and Sequential Confinement in $2+1$ dimensions

We consider the lagrangian description of Argyres-Douglas theories of type
$A_{2N-1}$, which is a $SU(N)$ gauge theory with an adjoint and one fundamental
flavor. An appropriate reformulation allows us to map the moduli space of vacua
across the duality, and to dimensionally reduce. Going down to three
dimensions, we find that the adjoint SQCD "abelianizes": in the infrared it is
equivalent to a $\mathcal{N}=4$ linear quiver theory. Moreover, we study the
mirror dual: using a monopole duality to "sequentially confine" quivers tails
with balanced nodes, we show that the mirror RG flow lands on $\mathcal{N}=4$
SQED with $N$ flavors. These results provide a physical derivation of previous
proposals for the three dimensional mirror of AD theories.Comment: 45 pages, clarifications and sequential RG flow to the 3d mirror of
  A_3 theory added. JHEP versio
One-loop Parke-Taylor factors for quadratic propagators from massless
  scattering equations

In this paper we reconsider the Cachazo-He-Yuan construction (CHY) of the so
called scattering amplitudes at one-loop, in order to obtain quadratic
propagators. In theories with colour ordering the key ingredient is the
redefinition of the Parke-Taylor factors. After classifying all the possible
one-loop CHY-integrands we conjecture a new one-loop amplitude for the massless
Bi-adjoint $\Phi^3$ theory. The prescription directly reproduces the quadratic
propagators from of the traditional Feynman approach.Comment: 43 pages, new appendix added, few typos corrected. Accepted for
  publication in JHE