pinecone/core-2020-05-10-deduplication huggingface dataset:
Renyi Entropies, the Analytic Bootstrap, and 3D Quantum Gravity at
  Higher Genus

We compute the contribution of the vacuum Virasoro representation to the
genus-two partition function of an arbitrary CFT with central charge $c>1$.
This is the perturbative pure gravity partition function in three dimensions.
We employ a sewing construction, in which the partition function is expressed
as a sum of sphere four-point functions of Virasoro vacuum descendants. For
this purpose, we develop techniques to efficiently compute correlation
functions of holomorphic operators, which by crossing symmetry are determined
exactly by a finite number of OPE coefficients; this is an analytic
implementation of the conformal bootstrap. Expanding the results in $1/c$,
corresponding to the semiclassical bulk gravity expansion, we find
that---unlike at genus one---the result does not truncate at finite loop order.
Our results also allow us to extend earlier work on multiple-interval Renyi
entropies and on the partition function in the separating degeneration limit.Comment: 63 pages + ref
One-loop effects from spin-1 resonances in Composite Higgs models

We compute the 1-loop correction to the electroweak observables from spin-1 resonances in SO(5)/SO(4) composite Higgs models. The strong dynamics is modeled with an effective description comprising the Nambu-Goldstone bosons and the lowest-lying spin-1 resonances. A classification is performed of the relevant operators including custodially-breaking effects from the gauging of hypercharge. The 1-loop contribution of the resonances is extracted in a diagrammatic approach by matching to the low-energy theory of Nambu-Goldstone bosons. We find that the correction is numerically important in a significant fraction of the parameter space and tends to weaken the bounds providing a negative shift to the S parameter
Topological anomalies for Seifert 3-manifolds

We study globally supersymmetric 3d gauge theories on curved manifolds by describing the coupling of 3d topological gauge theories, with both Yang-Mills and Chern-Simons terms in the action, to background topological gravity. In our approach, the Seifert condition for manifolds supporting global supersymmetry is elegantly deduced from the BRST transformations of topological gravity. A cohomological characterization of the geometrical moduli which affect the partition function is obtained. In the Seifert context the Chern-Simons topological (framing) anomaly is BRST trivial. We compute explicitly the corresponding local Wess-Zumino functional. As an application, we obtain the dependence on the Seifert moduli of the partition function of 3d supersymmetric gauge theory on the squashed sphere by solving the anomalous topological Ward identities, in a regularization independent way and without the need of evaluating any functional determinant
AdS 4 compactifications of AdS 7 solutions in type II supergravity

We find new classes of AdS 4 solutions with localized branes and orientifolds, both analytic and numerical. We start with an Ansatz for the pure spinors inspired by a recently found class of AdS 7 × M 3 solutions in massive IIA; we replace the AdS 7 by AdS 4 × Σ 3 , and we fibre M 3 over Σ 3 in a way inspired by a field theory SU(2) twist. We are able to reduce the problem to a system of five ODEs; a further Ansatz reduces them to three. Their solutions can be bijectively mapped to the AdS 7 solutions via a simple universal map. This also allows to find a simple analytic form for these solutions. They are naturally interpreted as twisted compactifications of the (1, 0) CFT 6 ’s dual to the AdS 7 solutions. The larger system of five ODEs also admits more general numerical solutions, again with localized branes; regularity is achieved via an attractor mechanism
P-V Criticality in Quasitopological Gravity

We investigate the thermodynamic behaviour of AdS quasitopological black hole
solutions in the context of extended thermodynamic phase space, in which the
cosmological constant induces a pressure with a conjugate volume. We find that
the third order exact quasitopological solution exhibits features consistent
with the third order Lovelock solutions for positive quasitopological coupling,
including multiple reentrant phase transitions and isolated critical points.
For negative coupling we find the first instances of both reentrant phase
transitions and thermodynamic singularities in five dimensions, along with
other modified thermodynamic behaviour compared to Einstein-AdS-Gauss Bonnet
gravity.Comment: 20 pages, 15 figures, REVTeX 4-1; updated to match published versio
Fast plunges into Kerr black holes

Most extreme-mass-ratio-inspirals of small compact objects into supermassive
black holes end with a fast plunge from an eccentric last stable orbit. For
rapidly rotating black holes such fast plunges may be studied in the context of
the Kerr/CFT correspondence because they occur in the near-horizon region where
dynamics are governed by the infinite dimensional conformal symmetry. In this
paper we use conformal transformations to analytically solve for the radiation
emitted from fast plunges into near-extreme Kerr black holes. We find perfect
agreement between the gravity and CFT computations.Comment: 16 pages, 2 figure
Position-space cuts for Wilson line correlators

We further develop the formalism for taking position-space cuts of eikonal
diagrams introduced in [Phys.Rev.Lett. 114 (2015), no. 18 181602,
arXiv:1410.5681]. These cuts are applied directly to the position-space
representation of any such diagram and compute its discontinuity to the leading
order in the dimensional regulator. We provide algorithms for computing the
position-space cuts and apply them to several two- and three-loop eikonal
diagrams, finding agreement with results previously obtained in the literature.
We discuss a non-trivial interplay between the cutting prescription and
non-Abelian exponentiation. We furthermore discuss the relation of the
imaginary part of the cusp anomalous dimension to the static interquark
potential.Comment: 39+18 pages, 16 figures; elaborated the discussion of the comparison
  of numerical and analytic results for the three-gluon vertex diagram in the
  caption of fig. 16; version to be published in JHE
$W\gamma$ and $Z\gamma$ production at the LHC in NNLO QCD

We consider the production of $W\gamma$ and $Z\gamma$ pairs at hadron colliders. We report on the complete fully differential computation of radiative corrections at next-to-next-to-leading order (NNLO) in QCD perturbation theory. The calculation includes the leptonic decay of the vector boson with the corresponding spin correlations, off shell effects and final-state photon radiation. We present numerical results for $pp$ collisions at 7 and 8 TeV and we compare them with available LHC data. In the case of $Z\gamma$ production, the impact of NNLO corrections is generally moderate, ranging from 8% to 18%, depending on the applied cuts. In the case of $W\gamma$ production, the NNLO effects are more important, and range from 19% to 26%, thereby improving the agreement of the theoretical predictions with the data. As expected, the impact of QCD radiative corrections is significantly reduced when a jet veto is applied
Playing tag with ANN: boosted top identification with pattern recognition

Many searches for physics beyond the Standard Model at the Large Hadron Collider (LHC) rely on top tagging algorithms, which discriminate between boosted hadronic top quarks and the much more common jets initiated by light quarks and gluons. We note that the hadronic calorimeter (HCAL) effectively takes a “digital image” of each jet, with pixel intensities given by energy deposits in individual HCAL cells. Viewed in this way, top tagging becomes a canonical pattern recognition problem. With this motivation, we present a novel top tagging algorithm based on an Artificial Neural Network (ANN), one of the most popular approaches to pattern recognition. The ANN is trained on a large sample of boosted tops and light quark/gluon jets, and is then applied to independent test samples. The ANN tagger demonstrated excellent performance in a Monte Carlo study: for example, for jets with pT in the 1100-1200 GeV range, 60% top-tag efficiency can be achieved with a 4% mis-tag rate. We discuss the physical features of the jets identified by the ANN tagger as the most important for classification, as well as correlations between the ANN tagger and some of the familiar top-tagging observables and algorithm
Constraining Dark Sectors with Monojets and Dijets

We consider dark sector particles (DSPs) that obtain sizeable interactions
with Standard Model fermions from a new mediator. While these particles can
avoid observation in direct detection experiments, they are strongly
constrained by LHC measurements. We demonstrate that there is an important
complementarity between searches for DSP production and searches for the
mediator itself, in particular bounds on (broad) dijet resonances. This
observation is crucial not only in the case where the DSP is all of the dark
matter but whenever - precisely due to its sizeable interactions with the
visible sector - the DSP annihilates away so efficiently that it only forms a
dark matter subcomponent. To highlight the different roles of DSP direct
detection and LHC monojet and dijet searches, as well as perturbativity
constraints, we first analyse the exemplary case of an axial-vector mediator
and then generalise our results. We find important implications for the
interpretation of LHC dark matter searches in terms of simplified models.Comment: 30 pages, 14 figures. v2: discussion of total ttbar cross section
  added, matches published versio
Double soft theorems in gauge and string theories

We investigate the tree-level S-matrix in gauge theories and open superstring theory with several soft particles. We show that scattering amplitudes with two or three soft gluons of non-identical helicities behave universally in the limit, with multi-soft factors which are not the product of individual soft gluon factors. The results are obtained from the BCFW recursion relations in four dimensions, and further extended to arbitrary dimensions using the CHY formula. We also find new soft theorems for double soft limits of scalars and fermions in N = 4 $$ \mathcal{N}=4 $$ and pure N = 2 $$ \mathcal{N}=2 $$ SYM. Finally, we show that the double-soft-scalar theorems can be extended to open superstring theory without receiving any α ′ corrections
LHC constraints on 3-3-1 models

The ATLAS detector data on di-lepton production is used in order to impose constraints on Z' boson masses associated with a variety of 3-3-1 and E_6 motivated Z'\ud
models. Lower mass bounds for the different models are established at 95% confidenc level. Our numerical analysis is extrapolated up to 14 TeV, and further to 30 TeV and\ud
100 TeV, for a broad range of luminosities. Some of our results can be compared with the ATLAS published bounds, being, for those cases, in fairly good agreement. We also report the vector and axial charges for all the 3-3-1-motivated Z' models without exotic electric charges for leptons, known in the literature. To the best of our knowledge most of this charges were not reported before
Bifid throats for axion monodromy inflation

Journal of High Energy Physics 2015.7 (2015): 099 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)We construct a simple explicit local geometry providing a ‘bifid throat’ for 5-brane axion monodromy. A bifid throat is a throat that splits into two daughter throats in the IR, containing a homologous 2-cycle family reaching down into each daughter throat. Our example consists of a deformed ℤ3 × ℤ2 orbifold of the conifold, which provides us with an explicit holographic dual of the bifid throat including D3-branes and fractional 5-branes at the toric singularities of our setup. Having the holographic description in terms of the dual gauge theory allows us to address the effect of 5-brane-antibrane pair backreaction including the warping effects. This leads to the size of the backreaction being small and controllable after imposing proper normalization of the inflaton potential and hence the warping scalesAR and AU are partially supported by the grants FPA2012-32828 from the MINECO, the ERC Advanced Grant SPLE under contract ERC-2012-ADG-20120216-320421 and the grant SEV-2012-0249 of the “Centro de Excelencia Severo Ochoa” Programme. AW is supported by the Impuls und Vernetzungsfond of the Helmholtz Association of German Research Centers under grant HZ-NG-60
Future tests of Higgs compositeness: direct vs indirect

We estimate the reach of the 14 TeV LHC and future hadronic and leptonic colliders in the parameter space of the minimal composite Higgs model, outlining the complementarity of direct resonance searches and indirect information from the measurements of the Higgs boson couplings. The reach on electroweak charged spin-one resonances, taken here as representative direct signatures, is obtained from the current 8 TeV LHC limits by an extrapolation procedure which we outline and validate. The impact of electroweak precision tests, and their possible improvement at future colliders, is also quantified
Bounds on charge and heat diffusivities in momentum dissipating holography

Inspired by a recently conjectured universal bound for thermo-electric diffusion constants in quantum critical, strongly coupled systems and relying on holographic analytical computations, we investigate the possibility of formulating Planckian bounds in different holographic models featuring momentum dissipation. For a certain family of solutions to a simple massive gravity dilaton model at zero charge density we find linear in temperature resistivity and entropy density alongside a constant electric susceptibility. In addition we explicitly find that the sum of the thermo-electric diffusion constants is bounded
Anatomy of $B\rightarrow D\bar{D}$ Decays

The decays $B_d^0\rightarrow D_d^-D_d^+$ and $B_s^0\rightarrow D_s^-D_s^+$
probe the CP-violating mixing phases $\phi_d$ and $\phi_s$, respectively. The
theoretical uncertainty of the corresponding determinations is limited by
contributions from penguin topologies, which can be included with the help of
the $U$-spin symmetry of the strong interaction. We analyse the currently
available data for $B^0_{d,s}\rightarrow D_{d,s}^-D_{d,s}^+$ decays and those
with similar dynamics to constrain the involved non-perturbative parameters.
Using further information from semileptonic $B_d^0\rightarrow
D_d^-\ell^+\nu_{\ell}$ decays, we perform a test of the factorisation
approximation and take non-factorisable $SU(3)$-breaking corrections into
account. The branching ratios of the $B_d^0\rightarrow D_d^-D_d^+$,
$B_s^0\rightarrow D_s^-D_d^+$ and $B_s^0\rightarrow D_s^-D_s^+$,
$B_d^0\rightarrow D_d^-D_s^+$ decays show an interesting pattern which can be
accommodated through significantly enhanced exchange and penguin annihilation
topologies. This feature is also supported by data for the $B_s^0\rightarrow
D_d^-D_d^+$ channel. Moreover, there are indications of potentially enhanced
penguin contributions in the $B_d^0\rightarrow D_d^-D_d^+$ and
$B_s^0\rightarrow D_s^-D_s^+$ decays, which would make it mandatory to control
these effects in the future measurements of $\phi_d$ and $\phi_s$. We discuss
scenarios for high-precision measurements in the era of Belle II and the LHCb
upgrade.Comment: 47 pages, 17 figures, matching published versio
Colored HOMFLY polynomials of knots presented as double fat diagrams

Many knots and links in S^3 can be drawn as gluing of three manifolds with
one or more four-punctured S^2 boundaries. We call these knot diagrams as
double fat graphs whose invariants involve only the knowledge of the fusion and
the braiding matrices of four-strand braids. Incorporating the properties of
four-point conformal blocks in WZNW models, we conjecture colored HOMFLY
polynomials for these double fat graphs where the color can be rectangular or
non-rectangular representation. With the recent work of Gu-Jockers, the fusion
matrices for the non-rectangular [21] representation, the first which involves
multiplicity is known. We verify our conjecture by comparing with the [21]
colored HOMFLY of many knots, obtained as closure of three braids. The
conjectured form is computationally very effective leading to writing
[21]-colored HOMFLY polynomials for many pretzel type knots and non-pretzel
type knots. In particular, we find class of pretzel mutants which are
distinguished and another class of mutants which cannot be distinguished by
[21] representation. The difference between the [21]-colored HOMFLY of two
mutants seems to have a general form, with A-dependence completely defined by
the old conjecture due to Morton and Cromwell. In particular, we check it for
an entire multi-parametric family of mutant knots evaluated using evolution
method.Comment: 38 pages + 18 pages (Appendix with tables and [21]-colored HOMFLY
  polynomials
High-Temperature Expansion of Supersymmetric Partition Functions

Di Pietro and Komargodski have recently demonstrated a four-dimensional
counterpart of Cardy's formula, which gives the leading high-temperature
($\beta\rightarrow{0}$) behavior of supersymmetric partition functions
$Z^{SUSY}(\beta)$. Focusing on superconformal theories, we elaborate on the
subleading contributions to their formula when applied to free chiral and U(1)
vector multiplets. In particular, we see that the high-temperature expansion of
$\ln Z^{SUSY}(\beta)$ terminates at order $\beta^0$. We also demonstrate how
their formula must be modified when applied to SU($N$) toric quiver gauge
theories in the planar ($N\rightarrow\infty$) limit. Our method for
regularizing the one-loop determinants of chiral and vector multiplets helps to
clarify the relation between the 4d $\mathcal{N} = 1$ superconformal index and
its corresponding supersymmetric partition function obtained by
path-integration.Comment: 15 pages plus appendices; v2: minor modifications and a "Note added";
  v3: presentation improved and minor errors in app B correcte
Generalized Cartan Calculus in general dimension

We develop the generalized Cartan Calculus for the groups G = SL(2,R) × R[superscript +],SL(5,R) and SO(5, 5). They are the underlying algebraic structures of d = 9, 7, 6 exceptional field theory, respectively. These algebraic identities are needed for the “tensor hierarchy” structure in exceptional field theory. The validity of Poincaré lemmas in this new differential geometry is also discussed. Finally we explore some possible extension of the generalized Cartan calculus beyond the exceptional series.United States. Dept. of Energy (Grant Contract DE-SC00012567
Far-from-equilibrium dynamics of a strongly coupled non-Abelian plasma
  with non-zero charge density or external magnetic field

Using holography, we study the evolution of a spatially homogeneous, far from
equilibrium, strongly coupled N=4 supersymmetric Yang-Mills plasma with a
non-zero charge density or a background magnetic field. This gauge theory
problem corresponds, in the dual gravity description, to an initial value
problem in Einstein-Maxwell theory with homogeneous but anisotropic initial
conditions. We explore the dependence of the equilibration process on different
aspects of the initial departure from equilibrium and, while controlling for
these dependencies, examine how the equilibration dynamics are affected by the
presence of a non-vanishing charge density or an external magnetic field. The
equilibration dynamics are remarkably insensitive to the addition of even large
chemical potentials or magnetic fields; the equilibration time is set primarily
by the form of the initial departure from equilibrium. For initial deviations
from equilibrium which are well localized in scale, we formulate a simple model
for equilibration times which agrees quite well with our results.Comment: 54 pages, 18 figures, published version, ref. update
Anomalous magnetoconductivity and relaxation times in holography

Journal of High Energy Physics 2015.7 (2015): 117 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)We study the magnetoconductivity induced by the axial anomaly via the chiral magnetic effect in strongly coupled holographic models. An important ingredient in our models is that the axial charge is non-conserved beyond the axial anomaly. We achieve this either by explicit symmetry breaking via a non-vanishing non-normalisable mode of an axially charged scalar or using a Stückelberg field to make the AdS-bulk gauge field massive. The DC magnetoconductivites can be calculated analytically. They take a universal form in terms of gauge field mass at the horizon and quadratic dependence on the magnetic field. The axial charge relaxation time grows linearly with magnetic field in the large B regime. Most strikingly positive magnetoconductivity is still present even when the relaxation times are short τ5 ≈ 1/(πT) and the axial charge can not be thought of as an approximate symmetry. In the U(1)A explicit breaking model, we also observe that the chiral separation conductivity and the axial magnetic conductivity for the consistent axial current vanish in the limit of strong symmetry breakingThis work was supported in part by the Spanish MINECO’s “Centro de Excelencia Severo Ochoa” Programme under grant SEV-2012-024
Inert scalars and vacuum metastability around the electroweak scale

We analyse effective potential around the electroweak (EW) scale in the
Standard Model extended with a heavy scalar doublet. We show that the
additional scalars can have a strong impact on vacuum stability. Although the
additional heavy scalars may improve the behaviour of running Higgs
self-coupling at large field values, we prove that they can destabilise the
vacuum due to EW-scale effects. A new EW symmetry conserving minimum of the
effective potential can appear rendering the electroweak symmetry breaking
minimum meta- or unstable. However, for the case of the inert doublet model
(IDM) with a 125 GeV Higgs boson we demonstrate that the parameter space region
where the vacuum is meta- or unstable cannot be reconciled with the constraints
from perturbative unitarity, electroweak precision tests and dark matter relic
abundance measurements.Comment: 15 pages, 4 figures, v2: references added, discussion extended (one
  figure added), results unchanged, matches published versio
Generalized ADE Classification of Gapped Domain Walls

In this paper we would like to demonstrate how the known rules of anyon
condensation motivated physically proposed by Bais \textit{et al} can be
recovered by the mathematics of twist-free commutative separable Frobenius
algebra (CSFA). In some simple cases, those physical rules are also sufficient
conditions defining a twist-free CSFA. This allows us to make use of the
generalized $ADE$ classification of CSFA's and modular invariants to classify
anyon condensation, and thus characterizing all gapped domain walls and gapped
boundaries of a large class of topological orders. In fact, this classification
is equivalent to the classification we proposed in Ref.1.Comment: 9+6 pages, 1 figure, 3 tables, minor corrections, references adde
Holographic charge transport in non commutative gauge theories

In this paper, based on the holographic techniques, we explore the
hydrodynamics of charge diffusion phenomena in non commutative $ \mathcal{N}=4
$ SYM plasma at strong coupling. In our analysis, we compute the $ R $ charge
diffusion rates both along commutative as well as the non commutative
coordinates of the brane. It turns out that unlike the case for the shear
viscosity, the DC conductivity along the non commutative direction of the brane
differs significantly from that of its cousin corresponding to the commutative
direction of the brane. Such a discrepancy however smoothly goes away in the
limit of the vanishing non commutativity.Comment: Latex, 11 pages, Version to appear in JHE