pinecone/core-2020-05-10-deduplication huggingface dataset:
P-T phase diagram of a holographic s+p model from Gauss-Bonnet gravity

In this paper, we study the holographic s+p model in 5-dimensional bulk
gravity with the Gauss-Bonnet term. We work in the probe limit and give the
$\Delta$-T phase diagrams at three different values of the Gauss-Bonnet
coefficient to show the effect of the Gauss-Bonnet term. We also construct the
P-T phase diagrams for the holographic system using two different definitions
of the pressure and compare the results.Comment: 17 pages, 5 figures, we have added new P-T phase diagrams with the
  pressure defined in boundary stress-energy tenso
F-theory at order $\alpha'^3$

We study the effective physics of F-theory at order $\alpha'^3$ in derivative
expansion. We show that the ten-dimensional type IIB eight-derivative couplings
involving the graviton and the axio-dilaton naturally descend from pure gravity
in twelve dimensions. Upon compactification on elliptically fibered Calabi-Yau
fourfolds, the non-trivial vacuum profile for the axio-dilaton leads to a new,
genuinely N=1, $\alpha'^3$ correction to the four-dimensional effective action.Comment: 24 pages, minor improvements, typos correcte
Matching NLO QCD with parton shower in Monte Carlo scheme - the KrkNLO
  method

A new method of including the complete NLO QCD corrections to hard processes
in the LO parton-shower Monte Carlo (PSMC) is presented. This method, called
KrkNLO, requires the use of parton distribution functions in a dedicated Monte
Carlo factorization scheme, which is also discussed in this paper. In the
future, it may simplify introduction of the NNLO corrections to hard processes
and the NLO corrections to PSMC. Details of the method and numerical examples
of its practical implementation, as well as comparisons with other
calculations, such as MCFM, MC@NLO, POWHEG, for single $Z/\gamma^*$-boson
production at the LHC, are presented.Comment: 50 pages, 14 figures. Version published in JHEP: added a comparison
  of krkNLO results and the fixed-order NNLO result from the DYNNLO program and
  addressed several points raised by the refere
't Hooft suppression and holographic entropy

Recent works have related the bulk first law of black hole mechanics to the
first law of entanglement in a dual CFT. These are first order relations, and
receive corrections for finite changes. In particular, the latter is naively
expected to be accurate only for small changes in the quantum state. But when
Newton's constant is small relative to the AdS scale, the former holds to good
approximation even for classical perturbations that contain many quanta. This
suggests that -- for appropriate states -- corrections to the first law of
entanglement are suppressed by powers of $N$ in CFTs whose correlators satisfy
't Hooft large-$N$ power counting. We take first steps toward verifying that
this is so by studying the large-$N$ structure of the entropy of spatial
regions for a class of CFT states motivated by those created from the vacuum by
acting with real-time single-trace sources. We show that $1/N$ counting matches
bulk predictions, though we require the effect of the source on the modular
hamiltonian to be non-singular. The magnitude of our sources is $\epsilon N$
with $\epsilon$ fixed-but-small as $N\rightarrow \infty$. Our results also
provide a perturbative derivation -- without relying on the replica trick -- of
the subleading Faulkner-Lewkowycz-Maldacena correction to the Ryu-Takayagi and
Hubeny-Rangamani-Takayanagi conjectures at all orders in $1/N$.Comment: 24 pages, no figures. v2: minor changes to agree with published
  versio
Type IIB supergravity solution for the T-dual of the eta-deformed AdS(5) x S-5 superstring

We find an exact type IIB supergravity solution that represents a one-parameter deformation of the T-dual of the AdS5 × S5 background (with T-duality applied in all 6 abelian bosonic isometric directions). The non-trivial fields are the metric, dilaton and RR 5-form only. The latter has remarkably simple “undeformed” form when written in terms of a “deformation-rotated” vielbein basis. An unusual feature of this solution is that the dilaton contains a linear dependence on the isometric coordinates of the metric precluding a straightforward reversal of T-duality. If we still formally dualize back, we find exactly the metric, B-field and product of dilaton with RR field strengths as recently extracted from the η-deformed AdS5 × S5 superstring action in arXiv:1507.04239. We also discuss similar solutions for deformed AdSn × Sn backgrounds with n = 2, 3. In the η → i limit we demonstrate that all these backgrounds can be interpreted as special limits of gauged WZW models and are also related to (a limit of) the Pohlmeyer-reduced models of the AdSn × Sn superstrings
Alternative Z ′ bosons in E 6

We classify the quantum numbers of the extra U(1)' symmetries contained in\ud
E_6 . In particular, we categorize the cases with rational charges and present the full list of\ud
models which arise from the chains of the maximal subgroups of E_6 . As an application,\ud
the classification allows us to determine all embeddings of the Standard Model fermions\ud
in all possible decompositions of the fundamental representation of E_6 under its maximal\ud
subgroups. From this we find alternative chains of subgroups for Grand Unified Theories.\ud
We show how many of the known models including some new ones appear in alternative\ud
breaking patterns. We also use low energy constraints coming from parity-violating asymmetry measurements and atomic parity non-conservation to set limits on the E 6 motivated\ud
parameter space for a Z' boson mass of 1.2 TeV. We include projected limits for the present\ud
and upcoming QWEAK, MOLLER and SOLID experiments
Quiver gauge theories and integrable lattice models

We discuss connections between certain classes of supersymmetric quiver gauge
theories and integrable lattice models from the point of view of topological
quantum field theories (TQFTs). The relevant classes include 4d $\mathcal{N} =
1$ theories known as brane box and brane tilling models, 3d $\mathcal{N} = 2$
and 2d $\mathcal{N} = (2,2)$ theories obtained from them by compactification,
and 2d $\mathcal{N} = (0,2)$ theories closely related to these theories. We
argue that their supersymmetric indices carry structures of TQFTs equipped with
line operators, and as a consequence, are equal to the partition functions of
lattice models. The integrability of these models follows from the existence of
extra dimension in the TQFTs, which emerges after the theories are embedded in
M-theory. The Yang-Baxter equation expresses the invariance of supersymmetric
indices under Seiberg duality and its lower-dimensional analogs.Comment: 46 pages. v2: minor changes and corrections; v3: minor changes and
  corrections, references added, published version; v4: typos corrected, a
  reference correcte
Leptogenesis in GeV-scale seesaw models

We revisit the production of leptonic asymmetries in minimal extensions of the Standard Model that can explain neutrino masses, involving extra singlets with Majorana masses in the GeV scale. We study the quantum kinetic equations both analytically, via a perturbative expansion up to third order in the mixing angles, and numerically. The analytical solution allows us to identify the relevant CP invariants, and simplifies the exploration of the parameter space. We find that sizeable lepton asymmetries are compatible with non-degenerate neutrino masses and measurable active-sterile mixings
Hairy Black Hole Stability in AdS, Quantum Mechanics on the Half-Line
  and Holography

We consider the linear stability of $4$-dimensional hairy black holes with
mixed boundary conditions in Anti-de Sitter spacetime. We focus on the mass of
scalar fields around the maximally supersymmetric vacuum of the gauged
$\mathcal{N}=8$ supergravity in four dimensions, $m^{2}=-2l^{-2}$. It is shown
that the Schr\"{o}dinger operator on the half-line, governing the $S^{2}$,
$H^{2}$ or $\mathbb{R}^{2}$ invariant mode around the hairy black hole, allows
for non-trivial self-adjoint extensions and each of them correspons to a class
of mixed boundary conditions in the gravitational theory. Discarding the
self-adjoint extensions with a negative mode impose a restriction on these
boundary conditions. The restriction is given in terms of an integral of the
potential in the Schr\"{o}dinger operator resembling the estimate of Simon for
Schr\"{o}dinger operators on the real line. In the context of AdS/CFT duality,
our result has a natural interpretation in terms of the field theory dual
effective potential.Comment: 13 pages, no figures, references added, matches published versio
Collider constraints on tuning in composite Higgs models

Published: October 12, 2015Two potential sources of tuning exist in composite Higgs models: one comes from keeping the Higgs VEV below the compositeness scale and one comes from keeping the Higgs light after constraints on the top partner masses are applied. We construct a measure that determines whether these tunings are independent or not and combines them appropriately. We perform a comprehensive scan of the parameter space for three explicit models and report the minimum tuning values compatible with existing collider constraints. Tuning values are given as functions of resonance masses and deviations to the Higgs couplings so the effect of future constraints can easily be quantified. The current minimum tuning in the minimal model is 2.5-5% and will be decreased to around 0.8-3.3% if no top partners are observed over the lifetime of the LHCJames Barnard and Martin Whit
AGT, N-Burge partitions and W_N minimal models

Let ${\mathcal B}^{\, p, \, p^{\prime}, \, {\mathcal H}}_{N, n}$ be a
conformal block, with $n$ consecutive channels $\chi_{\i}$, $\i = 1, \cdots,
n$, in the conformal field theory $\mathcal{M}^{\, p, \, p^{\prime}}_N \!
\times \! \mathcal{M}^{\mathcal{H}}$, where $\mathcal{M}^{\, p, \,
p^{\prime}}_N$ is a $\mathcal{W}_N$ minimal model, generated by chiral fields
of spin $1, \cdots, N$, and labeled by two co-prime integers $p$ and
$p^{\prime}$, $1 < p < p^{\prime}$, while $\mathcal{M}^{\mathcal{H}}$ is a free
boson conformal field theory. $\mathcal{B}^{\, p, \, p^{\prime},
\mathcal{H}}_{N, n}$ is the expectation value of vertex operators between an
initial and a final state. Each vertex operator is labelled by a charge vector
that lives in the weight lattice of the Lie algebra $A_{N-1}$, spanned by
weight vectors $\omega_1, \cdots, \omega_{N-1}$. We restrict our attention to
conformal blocks with vertex operators whose charge vectors point along
$\omega_1$. The charge vectors that label the initial and final states can
point in any direction.
  Following the $\mathcal{W}_N$ AGT correspondence, and using Nekrasov's
instanton partition functions without modification, to compute $\mathcal{B}^{\,
p, \, p^{\prime}, \mathcal{H}}_{N, n}$, leads to ill-defined expressions. We
show that restricting the states that flow in the channels $\chi_{\i}$, $\i =
1, \cdots, n$, to states labeled by $N$ partitions that satisfy conditions that
we call $N$-Burge partitions, leads to well-defined expressions that we
identify with $\mathcal{B}^{\, p, \, p^{\prime}, \, \mathcal{H}}_{N, n}$. We
check our identification by showing that a specific non-trivial conformal block
that we compute, using the $N$-Burge conditions satisfies the expected
differential equation.Comment: 34 pages. More references, same conten
Interference effects for H → WW → ℓνqq–′ and H → ZZ → ℓℓqq searches in gluon fusion at the LHC

Signal-background interference effects are studied for H → W W and H → ZZ searches in gluon fusion at the LHC. More specifically, the interference in the channels with semileptonic weak boson pair decay is analysed for light and heavy Higgs masses with minimal and realistic experimental selection cuts. In the semileptonic decay modes, the interference is affected by tree-level background contributions enhanced by 1/e2 relative to the gluon-fusion continuum background in the fully leptonic decay modes. We find that for both light and heavy Higgs masses the interference with the loop-induced weak-boson pair background dominates over the interference with the tree-level weak-boson plus jets background for a range of selection cuts. We therefore conclude that higher-order background contributions can induce leading interference effects. With appropriate background suppression cuts the interference can be reduced to the 10% level for heavy Higgs masses, and to the per mille level for the light SM Higgs. © 2015, The Author(s)
Ultraviolet asymptotics and singular dynamics of AdS perturbations

Important insights into the dynamics of spherically symmetric AdS-scalar
field perturbations can be obtained by considering a simplified time-averaged
theory accurately describing perturbations of amplitude epsilon on time-scales
of order 1/epsilon^2. The coefficients of the time-averaged equations are
complicated expressions in terms of the AdS scalar field mode functions, which
are in turn related to the Jacobi polynomials. We analyze the behavior of these
coefficients for high frequency modes. The resulting asymptotics can be useful
for understanding the properties of the finite-time singularity in solutions of
the time-averaged theory recently reported in the literature. We highlight, in
particular, the gauge dependence of this asymptotics, with respect to the two
most commonly used gauges. The harsher growth of the coefficients at large
frequencies in higher-dimensional AdS suggests strengthening of turbulent
instabilities in higher dimensions. In the course of our derivations, we arrive
at recursive relations for the coefficients of the time-averaged theory that
are likely to be useful for evaluating them more efficiently in numerical
simulations.Comment: 15 pages; v4: typos in equation (33) correcte
Ultraviolet asymptotics for quasiperiodic AdS_4 perturbations

Spherically symmetric perturbations in AdS-scalar field systems of small
amplitude epsilon approximately periodic on time scales of order 1/epsilon^2
(in the sense that no significant transfer of energy between the AdS normal
modes occurs) have played an important role in considerations of AdS stability.
They are seen as anchors of stability islands where collapse of small
perturbations to black holes does not occur. (This collapse, if it happens,
typically develops on time scales of the order 1/epsilon^2.) We construct an
analytic treatment of the frequency spectra of such quasiperiodic
perturbations, paying special attention to the large frequency asymptotics. For
the case of a self-interacting phi^4 scalar field in a non-dynamical AdS
background, we arrive at a fairly complete analytic picture involving
quasiperiodic spectra with an exponential suppression modulated by a power law
at large mode numbers. For the case of dynamical gravity, the structure of the
large frequency asymptotics is more complicated. We give analytic explanations
for the general qualitative features of quasiperiodic solutions localized
around a single mode, in close parallel to our discussion of the probe scalar
field, and find numerical evidence for logarithmic modulations in the
gravitational quasiperiodic spectra existing on top of the formulas previously
reported in the literature.Comment: 18 pages; v3: minor improvements, published versio
Probing Bino-Wino Coannihilation at the LHC

We study bino-wino coannihilation scenario in the so-called spread or
mini-split supersymmetry. We show that, in this model, a neutral wino has a
macroscopic decay length in a wide range of parameter space. This
characteristic feature could be observed as a displaced vertex plus missing
transverse energy event at the LHC. In this paper, we study the current
constraints and future prospects on the scenario based on the displaced vertex
search performed by the ATLAS collaboration. It is found that a sizable
parameter region can be probed at the 8 TeV LHC run. This search strategy will
considerably extend its reach at the next stage of the LHC running, and thus
play a crucial role to examine a possibility of bino dark matter in the
mini-split type supersymmetric models.Comment: 21 pages, 7 figures; version accepted for publication in JHE
Why Is The Neutrino Oscillation Formula Expanded In $\Delta
  m_{21}^{2}/\Delta m_{31}^{2}$ Still Accurate Near The Solar Resonance In
  Matter?

The conventional approximate formula for neutrino oscillation in matter which
is obtained from the expansion in terms of the ratio of mass square differences
$\alpha=\Delta m_{21}^{2}/\Delta m_{31}^{2}\approx0.03$, first proposed by
Cervera, et al and Freund, turns out to be an accurate formula for accelerator
neutrino experiments. Originally it required the neutrino energy to be well
above the solar resonance to validate the expansion but it is found to be still
very accurate when the formula is extrapolated to the resonance, which is
practically important for the T2K experiment. This paper shows that the
accuracy is guaranteed by cancellations of branch cut singularities and also,
for the first time, analytically computes the actual error of the formula. The
actual error implies that the original requirement can be safely removed in
current experiments.Comment: 22 pages,7 figures. Some materials are removed for simplicity.
  Accepted by JHE
Wiggling Throat of Extremal Black Holes

We construct the classical phase space of geometries in the near-horizon
region of vacuum extremal black holes as announced in [arXiv:1503.07861].
Motivated by the uniqueness theorems for such solutions and for perturbations
around them, we build a family of metrics depending upon a single periodic
function defined on the torus spanned by the $U(1)$ isometry directions. We
show that this set of metrics is equipped with a consistent symplectic
structure and hence defines a phase space. The phase space forms a
representation of an infinite dimensional algebra of so-called symplectic
symmetries. The symmetry algebra is an extension of the Virasoro algebra whose
central extension is the black hole entropy. We motivate the choice of
diffeomorphisms leading to the phase space and explicitly derive the symplectic
structure, the algebra of symplectic symmetries and the corresponding conserved
charges. We also discuss a formulation of these charges with a Liouville type
stress-tensor on the torus defined by the $U(1)$ isometries and outline
possible future directions.Comment: 56 pages, 3 figure
Constraining brane inflationary magnetic field from cosmoparticle
  physics after Planck

In this article, I have studied the cosmological and particle physics
constraints on a generic class of large field ($|\Delta\phi|>M_{p}$) and small
field ($|\Delta\phi<M_{p}$) models of brane inflationary magnetic field from:
(1) tensor-to-scalar ratio ($r$), (2) reheating, (3) leptogenesis and (4)
baryogenesis in case of Randall-Sundrum single braneworld gravity (RSII)
framework. I also establish a direct connection between the magnetic field at
the present epoch ($B_{0}$) and primordial gravity waves ($r$), which give a
precise estimate of non-vanishing CP asymmetry ($\epsilon_{CP}$) in
leptogenesis and baryon asymmetry ($\eta_{B}$) in baryogenesis scenario
respectively. Further assuming the conformal invariance to be restored after
inflation in the framework of RSII, I have explicitly shown that the
requirement of the sub-dominant feature of large scale coherent magnetic field
after inflation gives two fold non-trivial characteristic constraints- on
equation of state parameter ($w$) and the corresponding energy scale during
reheating ($\rho^{1/4}_{rh}$) epoch. Hence giving the proposal for avoiding the
contribution of back-reaction from the magnetic field I have established a
bound on the generic reheating characteristic parameter ($R_{rh}$) and its
rescaled version ($R_{sc}$), to achieve large scale magnetic field within the
prescribed setup and further apply the CMB constraints as obtained from
recently observed Planck 2015 data and Planck+BICEP2+Keck Array joint
constraints. Using all these derived results I have shown that it is possible
to put further stringent constraints on various classes of large and small
field inflationary models to break the degeneracy between various cosmological
parameters within the framework of RSII. Finally, I have studied the
consequences from two specific models of brane inflation- monomial and hilltop.Comment: 67 pages, 14 figures, Final version, Accepted for publication in JHE
Gravitational field equations near an arbitrary null surface expressed
  as a thermodynamic identity

Previous work has demonstrated that the gravitational field equations in all
Lanczos-Lovelock models imply a thermodynamic identity TdS=dE+PdV (where the
variations are interpreted as changes due to virtual displacement along the
affine parameter) in the near-horizon limit in static spacetimes. Here we
generalize this result to any arbitrary null surface in an arbitrary spacetime
and show that certain components of the Einstein's equations can be expressed
in the form of the above thermodynamic identity. We also obtain an explicit
expression for the thermodynamic energy associated with the null surface. Under
appropriate limits, our expressions reduce to those previously derived in the
literature. The components of the field equations used in obtaining the current
result are orthogonal to the components used previously to obtain another
related result, viz. that some components of the field equations reduce to a
Navier-Stokes equation on any null surface, in any spacetime. We also describe
the structure of Einstein's equations near a null surface in terms of three
well-defined projections and show how the different results complement each
other.Comment: v2, 25 pages, no figures, to appear in JHE
RG Flow and Thermodynamics of Causal Horizons in AdS

Causal horizons in pure Poincare $AdS$ are Killing horizons generated by
dilatation vector. Renormalization group (RG) flow breaks the dilatation
symmetry and makes the horizons dynamical. We propose that the boundary RG flow
is dual to the thermodynamics of the causal horizon. As a check of our proposal
we show that the gravity dual of the boundary $c$-theorem is the second law of
thermodynamics obeyed by causal horizons. The holographic $c$-function is the
Bekenstein-Hawking entropy (density) of the dynamical causal horizon. We
explicitly construct the $c$-function in a generic class of RG-flow geometries
and show that it interpolates monotonically between the UV and IR central
charges as a result of the second law.Comment: 15 pages, Latex, references added, figures added , relation to causal
  holographic information clarified, version accepted for publication in JHEP,
  references adde
Complete Classification of Four-Dimensional Black Hole and Membrane
  Solutions in IR-modified Ho\v{r}ava Gravity

Ho\v{r}ava gravity has been proposed as a renormalizable, higher-derivative
gravity without ghost problems, by considering different scaling dimensions for
space and time. In the non-relativistic higher-derivative generalization of
Einstein gravity, the meaning and physical properties of black hole and
membrane space-times are quite different from the conventional ones. Here, we
study the singularity and horizon structures of such geometries in IR-modified
Ho\v{r}ava gravity, where the so-called "detailed balance" condition is softly
broken in IR. We classify all the viable static solutions without naked
singularities and study its close connection to non-singular cosmology
solutions. We find that, in addition to the usual point-like singularity at
$r=0$, there exists a "surface-like" curvature singularity at finite $r=r_S$
which is the cutting edge of the real-valued space-time. The degree of
divergence of such singularities is milder than those of general relativity,
and the Hawking temperature of the horizons diverges when they coincide with
the singularities. As a byproduct we find that, in addition to the usual
"asymptotic limit," a consistent flow of coupling constants, that we called "GR
flow limit," is needed in order to recover general relativity in the IR.Comment: Accepted in JHEP, Typos correcte