pinecone/core-2020-05-10-deduplication huggingface dataset:
On the Late-Time Behavior of Virasoro Blocks and a Classification of
  Semiclassical Saddles

Recent work has demonstrated that black hole thermodynamics and information
loss/restoration in AdS$_3$/CFT$_2$ can be derived almost entirely from the
behavior of the Virasoro conformal blocks at large central charge, with
relatively little dependence on the precise details of the CFT spectrum or OPE
coefficients. Here, we elaborate on the non-perturbative behavior of Virasoro
blocks by classifying all `saddles' that can contribute for arbitrary values of
external and internal operator dimensions in the semiclassical large central
charge limit. The leading saddles, which determine the naive semiclassical
behavior of the Virasoro blocks, all decay exponentially at late times, and at
a rate that is independent of internal operator dimensions. Consequently, the
semiclassical contribution of high-energy states does not resolve a well-known
version of the information loss problem in AdS$_3$. However, we identify two
infinite classes of sub-leading saddles, and one of these classes does not
decay at late times.Comment: 38+10 pages, 17 figures; v2: added refs, comment
Dark Matter and Exotic Neutrino Interactions in Direct Detection
  Searches

We investigate the effect of new physics interacting with both Dark Matter
(DM) and neutrinos at DM direct detection experiments. Working within a
simplified model formalism, we consider vector and scalar mediators to
determine the scattering of DM as well as the modified scattering of solar
neutrinos off nuclei. Using existing data from LUX as well as the expected
sensitivity of LUX-ZEPLIN and DARWIN, we set limits on the couplings of the
mediators to quarks, neutrinos and DM. Given the current limits, we also assess
the true DM discovery potential of direct detection experiments under the
presence of exotic neutrino interactions. In the case of a vector mediator, we
show that the DM discovery reach of future experiments is affected for DM
masses $m_\chi \lesssim 10$ GeV or DM scattering cross sections $\sigma_\chi
\lesssim 10^{-47}$ cm$^2$. On the other hand, a scalar mediator will not affect
the discovery reach appreciably.Comment: One figure, comments and references added. Version published in the
  JHE
Patching DFT, T-duality and Gerbes

We clarify the role of the dual coordinates as described from the
perspectives of the Buscher T-duality rules and Double Field Theory. We show
that the T-duality angular dual coordinates cannot be identified with Double
Field Theory dual coordinates in any of the proposals that have been made in
the literature for patching the doubled spaces. In particular, we show with
explicit examples that the T-duality angular dual coordinates can have
non-trivial transition functions over a spacetime and that their identification
with the Double Field Theory dual coordinates is in conflict with proposals in
which the latter remain inert under the patching of the B-field. We then
demonstrate that the Double Field Theory coordinates can be identified with
some C-space coordinates and that the T-dual spaces of a spacetime are
subspaces of the gerbe in C-space. The construction provides a description of
both the local $O(d,d)$ symmetry and the T-dual spaces of spacetime.Comment: minor changes, references adde
Standard Coupling Unification in SO(10), Hybrid Seesaw Neutrino Mass and
  Leptogenesis, Dark Matter, and Proton Lifetime Predictions

We discuss gauge coupling unification of the SM descending directly from
SO(10) while providing solutions to the three outstanding problems: neutrino
masses, dark matter, and the baryon asymmetry of the universe. Conservation of
matter parity as gauged discrete symmetry in the model calls for high-scale
spontaneous symmetry breaking through ${126}_H$ Higgs representation. This
naturally leads to the hybrid seesaw formula for neutrino masses mediated by
heavy scalar triplet and right-handed neutrinos. The seesaw formula predicts
two distinct patterns of RH$\nu$ masses, one hierarchical and another not so
hierarchical (or compact) when fitted with the neutrino oscillation data.
Predictions of the baryon asymmetry via leptogenesis are investigated through
the decays of both the patterns of RH$\nu$ masses. A complete flavor analysis
has been carried out to compute CP-asymmetries and solutions to Boltzmann
equations have been utilized to predict the baryon asymmetry. The additional
contribution to vertex correction mediated by the heavy left-handed triplet
scalar is noted to contribute as dominantly as other Feynman diagrams. We have
found successful predictions of the baryon asymmetry for both the patterns of
RH$\nu$ masses. The triplet fermionic dark matter at the TeV scale carrying
even matter parity is naturally embedded into the non-standard fermionic
representation ${45}_F$ of SO(10). In addition to the triplet scalar and the
triplet fermion, the model needs a nonstandard color octet fermion of mass
$\sim 10^7$ GeV to achieve precision gauge coupling unification. Threshold
corrections due to superheavy components of ${126}_H$ and other representations
are estimated and found to be substantial. It is noted that the proton life
time predicted by the model is accessible to the ongoing and planned
experiments over a wide range of parameter space.Comment: 58 pages PDFLATEX, 19 Figures, Revised as suggested by JHEP Revie
The complete NLO corrections to dijet hadroproduction

We study the production of jets in hadronic collisions, by computing all
contributions proportional to $\alpha_S^n\alpha^m$, with $n+m=2$ and $n+m=3$.
These correspond to leading and next-to-leading order results, respectively,
for single-inclusive and dijet observables in a perturbative expansion that
includes both QCD and electroweak effects. We discuss issues relevant to the
definition of hadronic jets in the context of electroweak corrections, and
present sample phenomenological predictions for the 13-TeV LHC. We find that
both the leading and next-to-leading order contributions largely respect the
relative hierarchy established by the respective coupling-constant
combinations.Comment: 30 pages, 14 figures; v2 contains minor changes to the text and to
  one label in fig.1, plus additional material in the form of an ancillary file
  that reports cross sections computed in various HT range
Radiative bound-state-formation cross-sections for dark matter
  interacting via a Yukawa potential

We calculate the cross-sections for the radiative formation of bound states
by dark matter whose interactions are described in the non-relativistic regime
by a Yukawa potential. These cross-sections are important for cosmological and
phenomenological studies of dark matter with long-range interactions, residing
in a hidden sector, as well as for TeV-scale WIMP dark matter. We provide the
leading-order contributions to the cross-sections for the dominant capture
processes occurring via emission of a vector or a scalar boson. We offer a
detailed inspection of their features, including their velocity dependence
within and outside the Coulomb regime, and their resonance structure. For pairs
of annihilating particles, we compare bound-state formation with annihilation.Comment: v1: 53 pages, many figures; v2: discussion and references added,
  results unchanged, published version, 61 page
Patterns of Flavour Violation in Models with Vector-Like Quarks

We study the patterns of flavour violation in renormalisable extensions of
the Standard Model (SM) that contain vector-like quarks (VLQs) in a single
complex representation of either the SM gauge group $G_{SM}$ or $G_{SM}' =
G_{SM} \times U(1)_{L_\mu - L_\tau}$. We first decouple VLQs in the $M=(1-10)$
TeV range and then at the electroweak scale also $Z, Z'$ gauge bosons and
additional scalars to study the resulting phenomenology that depends on the
relative size of $Z$- and $Z'$-induced flavour-changing neutral currents, as
well as the size of $\Delta F=2$ contributions including the effects of
renormalisation group Yukawa evolution from $M$ to the electroweak scale that
turn out to be very important for models with right-handed currents through the
generation of left-right operators. In addition to rare decays like $P\to
\ell\bar\ell$, $P\to P' \ell\bar\ell$, $P\to P'\nu\bar\nu$ with $P=K, B_s, B_d$
and $\Delta F=2$ observables we analyze the ratio $\varepsilon'/\varepsilon$
which appears in the SM to be significantly below the data. We study patterns
and correlations between these observables which taken together should in the
future allow for differentiating between VLQ models. In particular the patterns
in models with left-handed and right-handed currents are markedly different
from each other. Among the highlights are large $Z$-mediated new physics
effects in Kaon observables in some of the models and significant effects in
$B_{s,d}$-observables. $\varepsilon'/\varepsilon$ can easily be made consistent
with the data, implying then uniquely the suppression of $K_L\to \pi^0
\nu\bar\nu$. Significant enhancements of $Br(K^+\to \pi^+ \nu\bar\nu)$ are
still possible. We point out that the combination of $\Delta F=2$ and $\Delta
F=1$ observables in a given meson system generally allows to determine the
masses of VLQs independently of the size of VLQ couplings.Comment: 50 + 24 pages, 12 figures; v3: added top-Yukawa RG evolution, details
  on VLQ matching on G_SM^(')-EFT, one figure, references; revised numerics;
  some changes in conclusion
CP-violating phase on magnetized toroidal orbifolds

We study the CP-violating phase of the quark sector in the $U(8)$ flavor
model on $T^2/Z_N \, (N=2,3,4,6)$ with non-vanishing magnetic fluxes, where
properties of possible origins of the CP violation are investigated minutely.
In this system, a non-vanishing value is mandatory in the real part of the
complex modulus parameter $\tau$ of the two-dimensional torus. On $T^2$ without
orbifolding, underlying discrete flavor symmetries severely restrict the form
of Yukawa couplings and it is very difficult to reproduce the observed pattern
in the quark sector including the CP-violating phase $\delta_{\rm CP}$. In
cases of multiple Higgs doublets emerging on $T^2/Z_2$, the mass matrices of
the zero-mode fermions can be written in the Gaussian textures by choosing
appropriate configurations of vacuum expectation values of the Higgs fields.
When such Gaussian textures of mass matrices are realized, we show that all of
the quark profiles, which are mass hierarchies among the quarks, quark mixing
angles, and $\delta_{\rm CP}$ can be simultaneously realized.Comment: 24 pages, 21 figures, 4 tables (v2, published version from JHEP
Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)'
  models

We examine the observability of heavy neutrino (nu_h) signatures of a U(1)'
enlarged Standard Model (SM) encompassing three heavy Majorana neutrinos
alongside the known light neutrino states at the the Large Hadron Collider
(LHC). We show that heavy neutrinos can be rather long-lived particles
producing distinctive displaced vertices that can be accessed in the CERN LHC
detectors. We concentrate here on the gluon fusion production mechanism gg ->
H_{1,2} -> nu_h nu_h, where H_1 is the discovered SM-like Higgs and H_2 is a
heavier state, yielding displaced leptons following nu_h decays into weak gauge
bosons. Using data collected by the end of the LHC Run 2, these signatures
would prove to be accessible with negligibly small background.Comment: 30 pages, journal versio
The $\rho$-meson light-cone distribution amplitudes from lattice QCD

We present the results of a lattice study of the normalization constants and
second moments of the light-cone distribution amplitudes of longitudinally and
transversely polarized $\rho$ mesons. The calculation is performed using two
flavors of dynamical clover fermions at lattice spacings between
$0.060\,\text{fm}$ and $0.081\,\text{fm}$, different lattice volumes up to
$m_\pi L = 6.7$ and pion masses down to $m_\pi=150\,\text{MeV}$. Bare lattice
results are renormalized non-perturbatively using a variant of the RI'-MOM
scheme and converted to the $\overline{\text{MS}}$ scheme. The necessary
conversion coefficients, which are not available in the literature, are
calculated. The chiral extrapolation for the relevant decay constants is worked
out in detail. We obtain for the ratio of the tensor and vector coupling
constants $f_\rho^T/f_\rho^{\vphantom{T}} = 0.629(8)$ and the values of the
second Gegenbauer moments $a_2^\parallel = 0.132(27)$ and $a_2^\perp =
0.101(22)$ at the scale $\mu = 2\,\text{GeV}$ for the longitudinally and
transversely polarized $\rho$ mesons, respectively. The errors include the
statistical uncertainty and estimates of the systematics arising from
renormalization. Discretization errors cannot be estimated reliably and are not
included. In this calculation the possibility of $\rho\to\pi\pi$ decay at the
smaller pion masses is not taken into account.Comment: Updated to published versio
Exploring the nearly degenerate stop region with sbottom decays

A light stop with mass almost degenerate with the lightest neutralino has
important connections with both naturalness and dark matter relic abundance.
This region is also very hard to probe at colliders. In this paper, we
demonstrate the potential of searching for such stop particles at the LHC from
sbottom decays, focusing on two channels with final states $2\ell+E^{\rm
miss}_{\rm T}$ and $1b1\ell+E^{\rm miss}_{\rm T}$. We found that, if the
lightest sbottom has mass around or below 1 TeV and has a significant branching
ratio to decay to stop and $W$ ($\tilde{b} \to \tilde{t}\,W$), a stop almost
degenerate with neutralino can be excluded up to about 500-600 GeV at the 13
TeV LHC with $300\,{\rm fb}^{-1}$ data. The searches we propose are
complementary to other SUSY searches at the LHC and could have the best
sensitivity to the stop-bino coannihilation region. Since they involve final
states which have already been used in LHC searches, a reinterpretation of the
search results already has sensitivity. Further optimization could deliver the
full potential of these channels.Comment: 26 pages, 6 figures, v2: minor corrections, references added, matches
  published version in JHE
Boundary Operators in Effective String Theory

Various universal features of relativistic rotating strings depend on the
organization of allowed local operators on the worldsheet. In this paper, we
study the set of Neumann boundary operators in effective string theory, which
are relevant for the controlled study of open relativistic strings with freely
moving endpoints. Relativistic open strings are thought to encode the dynamics
of confined quark-antiquark pairs in gauge theories in the planar
approximation. Neumann boundary operators can be organized by their behavior
under scaling of the target space coordinates X, and the set of allowed
X-scaling exponents is bounded above by +1/2 and unbounded below. Negative
contributions to X-scalings come from powers of a single invariant, or
"dressing" operator, which is bilinear in the embedding coordinates. In
particular, we show that all Neumann boundary operators are dressed by
quarter-integer powers of this invariant, and we demonstrate how this rule
arises from various ways of regulating the short-distance singularities of the
effective theory.Comment: LaTeX, 37 page
Fermionic spectral functions in backreacting p-wave superconductors at
  finite temperature

We investigate the spectral function of fermions in a $p$-wave
superconducting state, at finite both temperature and gravitational coupling,
using the $AdS/CFT$ correspondence and extending previous research. We found
that, for any coupling below a critical value, the system behaves as its zero
temperature limit. By increasing the coupling, the "peak-dip-hump" structure
that characterizes the spectral function at fixed momenta disappears. In the
region where the normal/superconductor phase transition is first order, the
presence of a non-zero order parameter is reflected in the absence of
rotational symmetry in the fermionic spectral function at the critical
temperature.Comment: 29 pages, 19 figure
Shining Light on Polarizable Dark Particles

We investigate the possibilities of searching for a self-conjugate
polarizable particle in the self-interactions of light. We first observe that
polarizability can arise either from the exchange of mediator states or as a
consequence of the inner structure of the particle. To exemplify this second
possibility we calculate the polarizability of a neutral bosonic open string,
and find it is described only by dimension-8 operators. Focussing on the spin-0
case, we calculate the light-by-light scattering amplitudes induced by the
dimension-6 and 8 polarizability operators. Performing a simulation of
exclusive diphoton production with proton tagging at the LHC, we find that the
imprint of the polarizable dark particle can be potentially detected at
5$\sigma$ significance for mass and cutoff reaching values above the TeV scale,
for $\sqrt{s}=$13~TeV and 300 fb$^{-1}$ of integrated luminosity. If the
polarizable dark particle is stable, it can be a dark matter candidate, in
which case we argue this exclusive diphoton search may complement the existing
LHC searches for polarizable dark matter.Comment: 24 pages, 3 figures. v2: Comments added. Analysis of intrinsic
  polarizability modified, conclusions unchanged. Matches JHEP versio
On New Proposal for Holographic BCFT

This paper is an extended version of our short letter on a new proposal for
holographic boundary conformal field, i.e., BCFT. By using the
Penrose-Brown-Henneaux (PBH) transformation, we successfully obtain the
expected boundary Weyl anomaly. The obtained boundary central charges satisfy
naturally a c-like theorem holographically. We then develop an approach of
holographic renormalization for BCFT, and reproduce the correct boundary Weyl
anomaly. This provides a non-trivial check of our proposal. We also investigate
the holographic entanglement entropy of BCFT and find that our proposal gives
the expected orthogonal condition that the minimal surface must be normal to
the spacetime boundaries if they intersect. This is another support for our
proposal. We also find that the entanglement entropy depends on the boundary
conditions of BCFT and the distance to the boundary; and that the entanglement
wedge behaves a phase transition, which is important for the self-consistency
of AdS/BCFT. Finally, we show that the proposal of arXiv:1105.5165 is too
restrictive that it always make vanishing some of the boundary central charges.Comment: Introduction improved, references added, give the details of key
  calculations in appendix C, add a note to show the criticism of our results
  on Weyl anomaly in arXiv:1702.00566v1 is not correct and remind the readers
  that these authors have changed their results and reproduced our results in
  arXiv:1702.00566v
Logarithmic corrections to black hole entropy from Kerr/CFT

It has been shown by A. Sen that logarithmic corrections to the black hole
area-entropy law are entirely determined macroscopically from the massless
particle spectrum. They therefore serve as powerful consistency checks on any
proposed enumeration of quantum black hole microstates. Sen's results include a
macroscopic computation of the logarithmic corrections for a five-dimensional
near extremal Kerr-Newman black hole. Here we compute these corrections
microscopically using a stringy embedding of the Kerr/CFT correspondence and
find perfect agreement
Protected string spectrum in AdS3/CFT2 from worldsheet integrability

We derive the protected closed-string spectra of AdS3/CFT2 dual pairs with 16
supercharges at arbitrary values of the string tension and of the three-form
fluxes. These follow immediately from the all-loop Bethe equations for the
spectra of the integrable worldsheet theories. Further, representing the
underlying integrable systems as spin chains, we find that their dynamics
involves length-changing interactions and that protected states correspond to
gapless excitations above the Berenstein-Maldacena-Nastase vacuum. In the case
of AdS3 x S3 x T4 the degeneracies of such operators precisely match those of
the dual CFT2 and the supergravity spectrum. On the other hand, we find that
for AdS3 x S3 x S3 x S1 there are fewer protected states than previous
supergravity calculations had suggested. In particular, protected states have
the same su(2) charge with respect to the two three-spheres.Comment: 37 pages; v2: 40 pages, discussion of wrapping effects added (section
  8), as accepted by JHE
A Cardy-like formula for rotating black holes with planar horizon

We show that the semiclassical entropy of $D$-dimensional rotating
(an)isotropic black holes with planar horizon can be successfully computed
according to a Cardy-like formula. This formula does not refer to any central
charges but instead involves the vacuum energy which is identified with a
gravitational bulk soliton. The soliton is obtained from the non-rotating black
hole solution by means of a double analytic continuation. The robustness of the
Cardy-like formula is tested with numerous and varied examples, including AdS,
Lifshitz and hyperscaling violation planar black holes.Comment: Published in JHEP04(2017)09
Living on the Edge: A Toy Model for Holographic Reconstruction of
  Algebras with Centers

We generalize the Pastawski-Yoshida-Harlow-Preskill (HaPPY) holographic
quantum error-correcting code to provide a toy model for bulk gauge fields or
linearized gravitons. The key new elements are the introduction of degrees of
freedom on the links (edges) of the associated tensor network and their
connection to further copies of the HaPPY code by an appropriate isometry. The
result is a model in which boundary regions allow the reconstruction of bulk
algebras with central elements living on the interior edges of the (greedy)
entanglement wedge, and where these central elements can also be reconstructed
from complementary boundary regions. In addition, the entropy of boundary
regions receives both Ryu-Takayanagi-like contributions and further corrections
that model the $\frac{\delta \text{Area}}{4G_N}$ term of Faulkner, Lewkowycz,
and Maldacena. Comparison with Yang-Mills theory then suggests that this
$\frac{\delta \text{Area}}{4G_N}$ term can be reinterpreted as a part of the
bulk entropy of gravitons under an appropriate extension of the physical bulk
Hilbert space.Comment: 20 pages, 11 figure
One-Dimensional Super Calabi-Yau Manifolds and their Mirrors

We apply a definition of generalised super Calabi-Yau variety (SCY) to
supermanifolds of complex dimension one. One of our results is that there are
two SCY's having reduced manifold equal to $\mathbb{P}^1$, namely the
projective super space $\mathbb{P}^{1|2} $ and the weighted projective super
space $\mathbb{WP}^{1|1}_{(2)}$. Then we compute the corresponding sheaf
cohomology of superforms, showing that the cohomology with picture number one
is infinite dimensional, while the de Rham cohomology, which is what matters
from a physical point of view, remains finite dimensional. Moreover, we provide
the complete real and holomorphic de Rham cohomology for generic projective
super spaces $\mathbb P^{n|m}$. We also determine the automorphism groups:
these always match the dimension of the projective super group with the only
exception of $\mathbb{P}^{1|2} $, whose automorphism group turns out to be
larger than the projective general linear supergroup. By considering the
cohomology of the super tangent sheaf, we compute the deformations of
$\mathbb{P}^{1|m}$, discovering that the presence of a fermionic structure
allows for deformations even if the reduced manifold is rigid. Finally, we show
that $\mathbb{P}^{1|2} $ is self-mirror, whereas $\mathbb{WP} ^{1|1}_{(2)}$ has
a zero dimensional mirror. Also, the mirror map for $\mathbb{P}^{1|2}$
naturally endows it with a structure of $N=2$ super Riemann surface.Comment: 50 pages. Accepted for publication in JHE