pinecone/core-2020-05-10-deduplication huggingface dataset:
On the chiral algebra of Argyres-Douglas theories and S-duality

We study the two-dimensional chiral algebra associated with the simplest
Argyres-Douglas type theory with an exactly marginal coupling, i.e., the
$(A_3,A_3)$ theory. Near a cusp in the space of the exactly marginal
deformations (i.e., the conformal manifold), the theory is well-described by
the $SU(2)$ gauge theory coupled to isolated Argyres-Douglas theories and a
fundamental hypermultiplet. In this sense, the $(A_3,A_3)$ theory is an
Argyres-Douglas version of the $\mathcal{N}=2$ $SU(2)$ conformal QCD. By
studying its Higgs branch and Schur index, we identify the minimal possible set
of chiral algebra generators for the $(A_3,A_3)$ theory, and show that there is
a unique set of closed OPEs among these generators. The resulting OPEs are
consistent with the Schur index, Higgs branch chiral ring relations, and the
BRST cohomology conjecture. We then show that the automorphism group of the
chiral algebra we constructed contains a discrete group $G$ with an $S_3$
subgroup and a homomorphism $G\to S_4 \times {\bf Z}_2$. This result is
consistent with the S-duality of the $(A_3,A_3)$ theory.Comment: 25 pages, 2 figure
Energy flow polynomials: A complete linear basis for jet substructure

We introduce the energy flow polynomials: a complete set of jet substructure
observables which form a discrete linear basis for all infrared- and
collinear-safe observables. Energy flow polynomials are multiparticle energy
correlators with specific angular structures that are a direct consequence of
infrared and collinear safety. We establish a powerful graph-theoretic
representation of the energy flow polynomials which allows us to design
efficient algorithms for their computation. Many common jet observables are
exact linear combinations of energy flow polynomials, and we demonstrate the
linear spanning nature of the energy flow basis by performing regression for
several common jet observables. Using linear classification with energy flow
polynomials, we achieve excellent performance on three representative jet
tagging problems: quark/gluon discrimination, boosted W tagging, and boosted
top tagging. The energy flow basis provides a systematic framework for complete
investigations of jet substructure using linear methods.Comment: 41+15 pages, 13 figures, 5 tables; v2: updated to match JHEP versio
Boomerang RG flows with intermediate conformal invariance.

For a class of D = 5 holographic models we construct boomerang RG flow solutions that start in the UV at an AdS5 vacuum and end up at the same vacuum in the IR. The RG flows are driven by deformations by relevant operators that explicitly break translation invariance. For specific models, such that they admit another AdS5 solution, AdS 5 c , we show that for large enough deformations the RG flows approach an intermediate scaling regime with approximate conformal invariance governed by AdS 5 c . For these flows we calculate the holographic entanglement entropy and the entropic c-function for the RG flows. The latter is not monotonic, but it does encapsulate the degrees of freedom in each scaling region. For a different set of models, we find boomerang RG flows with intermediate scaling governed by an AdS2 × ℝ3 solution which breaks translation invariance. Furthermore, for large enough deformations these models have interesting and novel thermal insulating ground states for which the entropy vanishes as the temperature goes to zero, but not as a power-law. Remarkably, the thermal diffusivity and the butterfly velocity for these new insulating ground states are related via D = Ev B 2 /(2πT), with E(T) → 0.5 as T → 0
Gluino-mediated electroweak penguin with flavor-violating trilinear
  couplings

In light of a discrepancy of the direct $CP$ violation in $K\to\pi\pi$
decays, $\varepsilon'/\varepsilon_K$, we investigate gluino contributions to
the electroweak penguin, where flavor violations are induced by squark
trilinear couplings. Top-Yukawa contributions to $\Delta S = 2$ observables are
taken into account, and vacuum stability conditions are evaluated in detail. It
is found that this scenario can explain the discrepancy of
$\varepsilon'/\varepsilon_K$ for the squark mass smaller than 5.6 TeV. We also
show that the gluino contributions can amplify $\mathcal{B}(K \to \pi \nu
\overline{\nu})$, $\mathcal{B}(K_S \to \mu^+ \mu^-)_{\rm eff}$ and $\Delta
A_{\rm CP}(b\to s\gamma)$. Such large effects could be measured in future
experiments.Comment: 30 pages, 8 figures; references added, version published in JHE
Notes on Integral Identities for 3d Supersymmetric Dualities

Four dimensional $\mathcal{N}=2$ Argyres-Douglas theories have been recently
conjectured to be described by $\mathcal{N}=1$ Lagrangian theories. Such
models, once reduced to 3d, should be mirror dual to Lagrangian $\mathcal{N}=4$
theories. This has been numerically checked through the matching of the
partition functions on the three sphere. In this article, we provide an
analytic derivation for this result in the $A_n$ case via hyperbolic
hypergeometric integrals. We study the $D_4$ case as well, commenting on some
open questions and possible resolutions. In the second part of the paper we
discuss other integral identities leading to the matching of the partition
functions in 3d dual pairs involving higher monopole superpotentials.Comment: 16 pages, 1 figure, typos corrected, references added and improved
  discussio
Constraining slepton and chargino through compressed top squark search

We examine the compressed mass spectrum with sub-TeV top squark ($\tilde t$)
as lightest colored (s)particle in natural supersymmetry (SUSY). Such spectra
are searched along with an additional hard jet, not only to boost the soft
decay particles, also to yield enough missing transverse momentum. Several
interesting kinematic variables are proposed to improve the probe performance
for this difficult region, where we concentrate on relatively clean dileptonic
channel of the top squark decaying into lightest neutralino ($\chi_1^0$), which
is also the lightest supersymmetric particle. In this work, we investigate the
merit of these kinematic variables, sensitive to compressed mass region
extending the search by introducing additional states, chargino and slepton
(sneutrino) having masses in between the $\tilde t$ and $\chi_1^0$. Enhanced
production and lack of branching suppression are capable of providing a strong
limit on chargino and slepton/sneutrino mass along with top squark mass. We
perform a detailed collider analysis using simplified SUSY spectrum and found
that with the present LHC data $M_{\tilde t}$ can be excluded up to 710 GeV
right away for $M_{\chi_1^0}$ of 640 GeV for a particular mass gap between
different states.Comment: v2: Published in JHEP: Minor changes in text, Appendix added, 26
  pages, 6 figures, 3 table
Near-Horizon Extremal Geometries: Coadjoint Orbits and Quantization

The NHEG algebra is an extension of Virasoro introduced in
[arXiv:1503.07861]; it describes the symplectic symmetries of
$(n+4)$-dimensional Near Horizon Extremal Geometries with $SL(2,R)\times
U(1)^{n+1}$ isometry. In this work we construct the NHEG group and classify the
(coadjoint) orbits of its action on phase space. As we show, the group consists
of maps from an $n$-torus to the Virasoro group, so its orbits are bundles of
standard Virasoro coadjoint orbits over $T^n$. We also describe the unitary
representations that are expected to follow from the quantization of these
orbits, and display their characters. Along the way we show that the NHEG
algebra can be built from u(1) currents using a twisted Sugawara construction.Comment: 22 pages, one figure. v2: Title expanded, various minor
  clarifications added. Published in JHE
Wilson loop form factors : a new duality.

We find a new duality for form factors of lightlike Wilson loops in planar\ud
N = 4 super-Yang-Mills theory. The duality maps a form factor involving an n-sided\ud
lightlike polygonal super-Wilson loop together with m external on-shell states, to the same\ud
type of object but with the edges of the Wilson loop and the external states swapping\ud
roles. This relation can essentially be seen graphically in Lorentz harmonic chiral (LHC)\ud
superspace where it is equivalent to planar graph duality. However there are some crucial\ud
subtleties with the cancellation of spurious poles due to gauge fixing. They are resolved\ud
by finding the correct formulation of the Wilson loop and by careful analytic continuation\ud
from Minkowski to Euclidean space. We illustrate all of these subtleties explicitly in the\ud
simplest non-trivial NMHV-like case
Fayet-Iliopoulos terms in supergravity without gauged R-symmetry

We construct a supergravity-Maxwell theory with a novel embedding of the
Fayet-Iliopoulos D-term, leading to spontaneous supersymmetry breaking. The
gauging of the R-symmetry is not required and a gravitino mass is allowed for a
generic vacuum. When matter couplings are introduced, an uplift through a
positive definite contribution to the scalar potential is obtained. We observe
a notable similarity to the $\overline{D3}$ uplift constructions and we give a
natural description in terms of constrained multiplets.Comment: 23 pages, version 3, new appendix on electric-magnetic duality and
  updated reference
Combination of inclusive and differential tt¯ charge asymmetry measurements using ATLAS and CMS data at √s=7 and 8 TeV

This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt¯) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. The data correspond to integrated luminosities of about 5 and 20 fb−1 for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are A C CHC7  = 0.005 ± 0.007 (stat) ± 0.006(syst) at 7 TeV and A C CHC8  = 0.0055 ± 0.0023 (stat) ± 0.0025 (syst) at 8 TeV. These values, as well as the combination of AC measurements as a function of the invariant mass of the tt¯ system at 8 TeV, are consistent with the respective standard model predictions
Open superstring field theory based on the supermoduli space

We present a new approach to formulating open superstring field theory based
on the covering of the supermoduli space of super-Riemann surfaces and
explicitly construct a gauge-invariant action in the Neveu-Schwarz sector up to
quartic interactions. The cubic interaction takes a form of an integral over an
odd modulus of disks with three punctures and the associated ghost is inserted.
The quartic interaction takes a form of an integral over one even modulus and
two odd moduli, and it can be interpreted as the integral over the region of
the supermoduli space of disks with four punctures which is not covered by
Feynman diagrams with two cubic vertices and one propagator. As our approach is
based on the covering of the supermoduli space, the resulting theory naturally
realizes an $A_\infty$ structure, and the two-string product and the
three-string product used in defining the cubic and quartic interactions are
constructed to satisfy the $A_\infty$ relations to this order.Comment: 60 pages, 3 figures; v2: minor corrections and references added; v3:
  a proof that the quartic vertex is unambiguously defined for general
  off-shell states added in appendix A.5, version published in JHE
Coulomb Branch Operators and Mirror Symmetry in Three Dimensions

We develop new techniques for computing exact correlation functions of a
class of local operators, including certain monopole operators, in
three-dimensional $\mathcal{N} = 4$ abelian gauge theories that have
superconformal infrared limits. These operators are position-dependent linear
combinations of Coulomb branch operators. They form a one-dimensional
topological sector that encodes a deformation quantization of the Coulomb
branch chiral ring, and their correlation functions completely fix the ($n\leq
3$)-point functions of all half-BPS Coulomb branch operators. Using these
results, we provide new derivations of the conformal dimension of half-BPS
monopole operators as well as new and detailed tests of mirror symmetry. Our
main approach involves supersymmetric localization on a hemisphere $HS^3$ with
half-BPS boundary conditions, where operator insertions within the hemisphere
are represented by certain shift operators acting on the $HS^3$ wavefunction.
By gluing a pair of such wavefunctions, we obtain correlators on $S^3$ with an
arbitrary number of operator insertions. Finally, we show that our results can
be recovered by dimensionally reducing the Schur index of 4D $\mathcal{N} = 2$
theories decorated by BPS 't Hooft-Wilson loops.Comment: 92 pages plus appendices, two figures; v2 and v3: typos corrected,
  references adde
On interference and non-interference in the SMEFT

We discuss interference in the limit $\hat{m}_{W}^2/s \rightarrow 0$ in the
Standard Model Effective Field Theory (SMEFT). Dimension six operators that
contribute to $\bar{\psi} \psi \rightarrow \bar{\psi'}_1 \psi_2' \bar{\psi'}_3
\psi'_4$ scattering events can experience a suppression of interference effects
with the Standard Model in this limit. This occurs for subsets of phase space
in some helicity configurations. We show that approximating these scattering
events by $2\rightarrow 2$ on-shell scattering results for intermediate
unstable gauge bosons, and using the narrow width approximation, can miss
interference terms present in the full phase space. Such interference terms can
be uncovered using off-shell calculations as we explicitly show and calculate.
We also study the commutation relation between the SMEFT expansion and the
narrow width approximation, and discuss some phenomenological implications of
these results.Comment: 19 pages, 3 figures. Updated to published JHEP versio
Conformal Structure of Massless Scalar Amplitudes Beyond Tree level

We show that the one-loop on-shell four-point scattering amplitude of
massless $\phi^4$ scalar field theory in 4D Minkowski space time, when Mellin
transformed to the Celestial sphere at infinity, transforms covariantly under
the global conformal group ($SL(2,C)$) on the sphere. The unitarity of the
four-point scalar amplitudes is recast into this Mellin basis. We show that the
same conformal structure also appears for the two-loop Mellin amplitude.
Finally we comment on some universal structure for all loop four-point Mellin
amplitudes specific to this theory.Comment: 15 pages, 4 figures, V2: Reference Adde
ADHM and the 4d Quantum Hall Effect

Yang-Mills instantons are solitonic particles in d=4+1 dimensional gauge
theories. We construct and analyse the quantum Hall states that arise when
these particles are restricted to the lowest Landau level. We describe the
ground state wavefunctions for both Abelian and non-Abelian quantum Hall
states. Although our model is purely bosonic, we show that the excitations of
this 4d quantum Hall state are governed by the Nekrasov partition function of a
certain five dimensional supersymmetric gauge theory with Chern-Simons term.
The partition function can also be interpreted as a variant of the Hilbert
series of the instanton moduli space, counting holomorphic sections rather than
holomorphic functions.
  It is known that the Hilbert series of the instanton moduli space can be
rewritten using mirror symmetry of 3d gauge theories in terms of Coulomb branch
variables. We generalise this approach to include the effect of a five
dimensional Chern-Simons term. We demonstrate that the resulting Coulomb branch
formula coincides with the corresponding Higgs branch Molien integral which, in
turn, reproduces the standard formula for the Nekrasov partition function.Comment: 50 pages, 2 figure
Large Higgs-electron Yukawa coupling in 2HDM

The present upper bound on $\kappa_e$, the ratio between the electron Yukawa
coupling and its Standard Model value, is of ${\cal O}(600)$. We ask what would
be the implications in case that $\kappa_e$ is close to this upper bound. The
simplest extension that allows for such enhancement is that of two Higgs
doublet models (2HDM) without natural flavor conservation. In this framework,
we find the following consequences: (i) Under certain conditions, measuring
$\kappa_e$ and $\kappa_V$ would be enough to predict values of Yukawa couplings
for other fermions and for the $H$ and $A$ scalars. (ii) In the case that the
scalar potential has a softly broken $Z_2$ symmetry, the second Higgs doublet
must be light, but if there is hard breaking of the symmetry, the second Higgs
doublet can be much heavier than the electroweak scale and still allow the
electron Yukawa coupling to be very different from its SM value. (iii) CP must
not be violated at a level higher than ${\cal O}(0.01/\kappa_e)$ in both the
scalar potential and the Yukawa sector. (iv) LHC searches for $e^+e^-$
resonances constrain this scenario in a significant way. Finally, we study the
implications for models where one of the scalar doublets couples only to the
first generation, or only to the third generation.Comment: 14 pages, 2 figure
Heavy-flavor parton distributions without heavy-flavor matching
  prescriptions

We show that the well-known obstacle for working with the zero-mass variable
flavor number scheme, namely, the omission of O(1) mass power corrections close
to the conventional heavy flavor matching point (HFMP) mu_b=m, can be easily
overcome. For this it is sufficient to take advantage of the freedom in
choosing the position of the HFMP. We demonstrate that by choosing a
sufficiently large HFMP, which could be as large as 10 times the mass of the
heavy quark, one can achieve the following improvements: 1) above the HFMP the
size of missing power corrections O(m) is restricted by the value of mu_b and,
therefore, the error associated with their omission can be made negligible; 2)
additional prescriptions for the definition of cross-sections are not required;
3) the resummation accuracy is maintained and 4) contrary to the common lore we
find that the discontinuity of alpha_s and pdfs across thresholds leads to
improved continuity in predictions for observables. We have considered a large
set of proton-proton and electron-proton collider processes, many through NNLO
QCD, that demonstrate the broad applicability of our proposal.Comment: 30 pages, 16 figures, 7 table
Gauged supergravities from M-theory reductions

In supergravity compactifications, there is in general no clear prescription
on how to select a finite-dimensional family of metrics on the internal space,
and a family of forms on which to expand the various potentials, such that the
lower-dimensional effective theory is supersymmetric. We propose a
finite-dimensional family of deformations for regular Sasaki-Einstein
seven-manifolds $M_7$, relevant for M-theory compactifications down to four
dimensions. It consists of integrable Cauchy-Riemann structures, corresponding
to complex deformations of the Calabi-Yau cone $M_8$ over $M_7$. The
non-harmonic forms we propose are the ones contained in one of the Kohn-Rossi
cohomology groups, which is finite-dimensional and naturally controls the
deformations of Cauchy-Riemann structures. The same family of deformations can
be also described in terms of twisted cohomology of the base $M_6$, or in terms
of Milnor cycles arising in deformations of $M_8$. Using existing results on
SU(3) structure compactifications, we briefly discuss the reduction of M-theory
on our class of deformed Sasaki-Einstein manifolds to four-dimensional gauged
supergravity.Comment: 70 pages, 4 figure
Boundaries of Amplituhedra and NMHV Symbol Alphabets at Two Loops

In this sequel to arXiv:1711.11507 we classify the boundaries of amplituhedra
relevant for determining the branch points of general two-loop amplitudes in
planar $\mathcal{N}=4$ super-Yang-Mills theory. We explain the connection to
on-shell diagrams, which serves as a useful cross-check. We determine the
branch points of all two-loop NMHV amplitudes by solving the Landau equations
for the relevant configurations and are led thereby to a conjecture for the
symbol alphabets of all such amplitudes.Comment: 42 pages, 6 figures, 8 tables; v2: minor corrections and improvement
Off-shell renormalization in Higgs effective field theories

The off-shell one-loop renormalization of a Higgs effective field theory
possessing a scalar potential $\sim\left(\Phi^\dagger\Phi-\frac{v^2}2\right)^N$
with $N$ arbitrary is presented. This is achieved by renormalizing the theory
once reformulated in terms of two auxiliary fields $X_{1,2}$, which, due to the
invariance under an extended Becchi-Rouet-Stora-Tyutin symmetry, are tightly
constrained by functional identities. The latter allow in turn the explicit
derivation of the mapping onto the original theory, through which the
(divergent) multi-Higgs amplitude are generated in a purely algebraic fashion.
We show that, contrary to naive expectations based on the loss of power
counting renormalizability, the Higgs field undergoes a linear Standard Model
like redefinition, and evaluate the renormalization of the complete set of
Higgs self-coupling in the $N\to\infty$ case.Comment: 33 pages, no figures. v3: complete one-loop off-shell renormalization
  for a BSM potential involving arbitrary powers of
  $\left(\phi^\dagger\phi-\frac{v^2}2\right)$ presented; Higgs wavefunction
  renormalization shown to be SM like; renormalization of the complete set of
  Higgs self-coupling in the $N\to\infty$ case discussed. v3 matches the
  published on
From Spinning Conformal Blocks to Matrix Calogero-Sutherland Models

In this paper we develop further the relation between conformal four-point
blocks involving external spinning fields and Calogero-Sutherland quantum
mechanics with matrix-valued potentials. To this end, the analysis of
\cite{Schomerus:2016epl} is extended to arbitrary dimensions and to the case of
boundary two-point functions. In particular, we construct the potential for any
set of external tensor fields. Some of the resulting Schr\"{o}dinger equations
are mapped explicitly to the known Casimir equations for 4-dimensional seed
conformal blocks. Our approach furnishes solutions of Casimir equations for
external fields of arbitrary spin and dimension in terms of functions on the
conformal group. This allows us to reinterpret standard operations on conformal
blocks in terms of group-theoretic objects. In particular, we shall discuss the
relation between the construction of spinning blocks in any dimension through
differential operators acting on seed blocks and the action of left/right
invariant vector fields on the conformal group.Comment: 29 page
Incoherent transport for phases that spontaneously break translations.

We consider phases of matter at finite charge density which spontaneously break spatial translations. Without taking a hydrodynamic limit we identify a boost invariant incoherent current operator. We also derive expressions for the small frequency behaviour of the thermoelectric conductivities generalising those that have been derived in a translationally invariant context. Within holographic constructions we show that the DC conductivity for the incoherent current can be obtained from a solution to a Stokes flow for an auxiliary fluid on the black hole horizon combined with specific thermodynamic quantities associated with the equilibrium black hole solutions