pinecone/core-2020-05-10-deduplication huggingface dataset:
How Resonance-Continuum Interference Changes 750 GeV Diphoton Excess:
  Signal Enhancement and Peak Shift

The new scalar resonance contribution to the 750 GeV diphoton excess observed
at the LHC 13 TeV necessarily interferes with the continuum background in the
$gg\to \gamma \gamma$. The interference has two considerable effects: (1)
enhancing or suppressing diphoton signal rate due to the imaginary-part
interference and (2) distorting resonance shape due to the real-part
interference. From the best-fit study of two benchmark models (two Higgs
doublets with $\sim$50 GeV widths and a singlet scalar with 5 GeV width, both
extended with vector-like fermions), we find that the resonance contribution to
the 750 GeV excess can be enhanced by a factor of 2(1.6) for 3(6) fb signal
rate and the 68%(95%) CL best-fit mass range can shift by 1-4 (any ${\cal
O}$(1)) GeV. If the best-fit excess rate decreases with future data, the
interference effects will become more significant. The inevitable interferences
can also provide a consistency check of a resonance hypothesis, whether or not
future precision shape measurements confirm a Breit-Wigner shape or discover
interesting deviations.Comment: 23 pages, 14 figure
Hybrid Natural Inflation

We construct two simple effective field theory versions of {\it Hybrid
Natural Inflation (HNI)} that illustrate the range of its phenomenological
implications. The resulting inflationary sector potential,
$V=\Delta^4(1+a\cos(\phi/f))$, arises naturally, with the inflaton field a
pseudo-Nambu-Goldstone boson. The end of inflation is triggered by a waterfall
field and the conditions for this to happen are determined. Also of interest is
the fact that the slow-roll parameter $\epsilon$ (and hence the tensor $r$) is
a non-monotonic function of the field with a maximum where observables take
universal values that determines the maximum possible tensor to scalar ratio
$r$. In one of the models the inflationary scale can be as low as the
electroweak scale. We explore in detail the associated HNI phenomenology,
taking account of the constraints from Black Hole production, and perform a
detailed fit to the Planck 2015 temperature and polarisation data.Comment: V2: 19 pages, 2 figures, 1 table. Extended discussions and new
  references added. Version accepted for publication in JHE
Vortex in holographic two-band superfluid/superconductor

We construct numerically static vortex solutions in a holographic model of
two-band superconductor with an interband Josephson coupling in both the
superfluid and superconductor regime. We investigate the effects of the
interband coupling on the order parameter of each superconducting band in the
vortex solution, and we find that it is different for each of the two bands. We
compute also the free energy, critical magnetic field, magnetic penetration
length and coherence lengths for the two bands, and we study their dependence
on the interband coupling and temperature. Interestingly, we find that the
coherence lengths of the two bands are close to identical.Comment: 15 pages, 10 figures, v3. major revision, match with journal versio
The Two-Loop Symbol of all Multi-Regge Regions

We study the symbol of the two-loop n-gluon MHV amplitude for all Mandelstam
regions in multi-Regge kinematics in N=4 super Yang-Mills theory. While the
number of distinct Mandelstam regions grows exponentially with n, the increase
of independent symbols turns out to be merely quadratic. We uncover how to
construct the symbols for any number of external gluons from just two building
blocks which are naturally associated with the six- and seven-gluon amplitude,
respectively. The second building block is entirely new, and in addition to its
symbol, we also construct a prototype function that correctly reproduces all
terms of maximal functional transcendentality.Comment: 20 pages, v2: include details on functions f and g, make appendix
  consistent with main text, typesetting (published version
A singular one-parameter family of solutions in cubic superstring field
  theory

Performing a gauge transformation of a simple identity-like solution of
superstring field theory, we construct a one-parameter family of solutions, and
by evaluating the energy associated to this family, we show that for most of
the values of the parameter the solution represents the tachyon vacuum, except
for two isolated singular points where the solution becomes the perturbative
vacuum and the half brane solution.Comment: 23 pages; the title and the abstract have been changed; section 6 has
  been extended; an appendix has been adde
One-loop divergences in non-Abelian supersymmetric theories regularized
  by BRST-invariant version of the higher derivative regularization

We consider a general non-Abelian renormalizable ${\cal N}=1$ supersymmetric
gauge theory, regularized by higher covariant derivatives without breaking the
BRST invariance, and calculate one-loop divergences for a general form of
higher derivative regulator and of the gauge fixing term. It is demonstrated
that the momentum integrals giving the one-loop $\beta$-function are integrals
of double total derivatives independently of a particular choice of the higher
derivative term. Evaluating them we reproduce the well-known result for the
one-loop $\beta$-function. Also we find that the three-point ghost vertices
with a single line of the quantum gauge superfield are not renormalized in the
considered approximation.Comment: 17 pages, 4 figure
The calorimetric spectrum of the electron-capture decay of $^{163}$Ho.
  The spectral endpoint region

The electron-neutrino mass (or masses and mixing angles) may be directly
measurable in weak electron-capture decays. The favoured experimental technique
is "calorimetric". The optimal nuclide is $^{163}$Ho, and several experiments
(ECHo, HOLMES and NuMECS) are currently studying its decay. The most relevant
range of the calorimetric-energy spectrum extends for the last few hundred eV
below its endpoint. It has not yet been well measured. We explore the theory,
mainly in the cited range, of electron capture in $^{163}$Ho decay. A so far
neglected process turns out to be most relevant: electron-capture accompanied
by the shake-off of a second electron. Our two main conclusions are very
encouraging: the counting rate close to the endpoint may be more than an order
of magnitude larger than previously expected; the "pile-up" problem may be
significantly reduced.Comment: Clarifying changes suggested by a referee. Results unchanged. 14
  pages, 15 figure
Potential NRQCD for unequal masses and the $B_c$ spectrum at NNNLO

We determine the $1/m$ and $1/m^2$ spin-independent heavy quarkonium
potentials in the unequal mass case with $\mathcal O(\alpha^3)$ and $\mathcal
O(\alpha^2)$ accuracy, respectively. We discuss in detail different methods to
calculate the potentials, and show the equivalence among them. In particular we
obtain, for the first time, the manifestly gauge invariant $1/m$ and $1/m^2$
potentials in terms of Wilson loops with next-to-leading order (NLO) precision.
As an application of our results we derive the theoretical expression for the
$B_c$ spectrum in the weak-coupling limit through
next-to-next-to-next-to-leading order (N$^3$LO).Comment: 64 pages, 5 figures; v2: Minor changes. Some material moved to
  appendices. Journal version; v3: Typos corrected. New (but equivalent)
  eq.(E.1
Gamma-rays from Dark Showers with Twin Higgs Models

We consider a twin WIMP scenario whose twin sector contains a full dark copy
of the SM hadrons, where the lightest twin particles are twin pions. By analogy
to the standard WIMP paradigm, the dark matter (DM) freezes out through twin
electroweak interactions, and annihilates into a dark shower of light twin
hadrons. These are either stable or decay predominantly to standard model (SM)
photons. We show that this 'hadrosymmetric' scenario can be consistent with all
applicable astrophysical, cosmological and collider constraints. In order to
decay the twin hadrons before the big-bang nucleosynthesis epoch, an additional
portal between the SM and twin sector is required. In most cases we find this
additional mediator is within reach of either the LHC or future intensity
frontier experiments. Furthermore, we conduct simulations of the dark shower
and consequent photon spectra. We find that fits of these spectra to the
claimed galactic center gamma-ray excess seen by Fermi-LAT non-trivially
coincide with regions of parameter space that both successfully generate the
observed DM abundance and exhibit minimal fine-tuning.Comment: 45 pages, 11 figures, v2: journal version, extended discussions in
  Secs. III-V, references adde
Brane Brick Models and 2d (0,2) Triality

We provide a brane realization of 2d (0,2) Gadde-Gukov-Putrov triality in
terms of brane brick models. These are Type IIA brane configurations that are
T-dual to D1-branes over singular toric Calabi-Yau 4-folds. Triality translates
into a local transformation of brane brick models, whose simplest
representative is a cube move. We present explicit examples and construct their
triality networks. We also argue that the classical mesonic moduli space of
brane brick model theories, which corresponds to the probed Calabi-Yau 4-fold,
is invariant under triality. Finally, we discuss triality in terms of phase
boundaries, which play a central role in connecting Calabi-Yau 4-folds to brane
brick models.Comment: 66 pages, 50 figures. v2: references and minor clarification adde
Mirror symmetry & supersymmetry on SU(4)-structure backgrounds

We revisit the backgrounds of type IIB on manifolds with $SU(4)$-structure
and discuss two sets of solutions arising from internal geometries that are
complex and symplectic respectively. Both can be realized in terms of
generalized complex geometry. We identify a map which relates the complex and
symplectic supersymmetric systems. In the semi-flat torus bundle setting this
map corresponds to T-duality and suggest a way of extending the mirror
transform to non-K\"ahler geometries.Comment: 40 page
Towards the understanding of jet shapes and cross sections in heavy ion
  collisions using soft-collinear effective theory

We calculate the jet shape and the jet cross section in heavy ion collisions
using soft-collinear effective theory (SCET) and its extension with Glauber
gluon interactions in the medium (SCET$_{\rm G}$). We use the previously
developed framework to systematically resum the jet shape at next-to-leading
logarithmic accuracy, and we consistently include the medium modification by
incorporating the leading order medium-induced splitting functions. The
calculation provides, for the first time, a quantitative understanding of the
jet shape modification measurement in lead-lead collisions at $\sqrt{s_{\rm
NN}}=2.76$ TeV at the LHC. The inclusive jet suppression is also calculated
within the same framework beyond the traditional concept of parton energy loss,
and the dependence on the centrality, the jet radius and the jet kinematics is
examined. In the end we present predictions for the anticipated jet shape and
cross section measurements in lead-lead collisions at $\sqrt{s_{\rm
NN}}\approx5.1$ TeV at the LHC.Comment: 26 pages, 12 figure
Cosmology in Poincare gauge gravity with a pseudoscalar torsion

A cosmology of Poincare gauge theory is developed, where several properties
of universe corresponding to the cosmological equations with the pseudoscalar
torsion function are investigated. The cosmological constant is found to be the
intrinsic torsion and curvature of the vacuum universe and is derived from the
theory naturally rather than added artificially, i.e. the dark energy
originates from geometry and includes the cosmological constant but differs
from it. The cosmological constant puzzle, the coincidence and fine tuning
problem are relieved naturally at the same time. By solving the cosmological
equations, the analytic cosmological solution is obtained and can be compared
with the LCDM model. In addition, the expressions of density parameters of the
matter and the geometric dark energy are derived, and it is shown that the
evolution of state equations for the geometric dark energy agrees with the
current observational data. At last, the full equations of linear cosmological
perturbations and the solutions are obtained.Comment: 22 pages, 1 figure. Version published in JHE
CP-Violation in the $ZZZ$ and $ZWW$ vertices at $e^+e^-$ colliders in
  Two-Higgs-Doublet Models

We discuss possibilities of measuring CP violation in the Two-Higgs-Doublet
Model by studying effects of one-loop generated $ZZZ$ and $ZWW$ vertices. We
discuss a set of CP-sensitive asymmetries for $ZZ$ and $W^+W^-$ production at
linear $e^+e^-$-colliders, that directly depends on the weak-basis invariant Im
$J_2$ that parametrises the strength of CP violation. Given the restrictions on
this model that follow from the LHC measurements, the predicted effects are
small. Pursuing such measurements is however very important, as an observed
signal might point to a richer scalar sector.Comment: 28 pages, v2: Signs in Eqs. (3.4) and (A.4) corrected, confirming
  result of arXiv:1710.05563. Fig. 2 correcte
On skew tau-functions in higher spin theory

Recent studies of higher spin theory in three dimensions concentrate on
Wilson loops in Chern-Simons theory, which in the classical limit reduce to
peculiar corner matrix elements between the highest and lowest weight states in
a given representation of SL(N). Despite these "skew" tau-functions can seem
very different from conventional ones, which are the matrix elements between
the two highest weight states, they also satisfy the Toda recursion between
different fundamental representations. Moreover, in the most popular examples
they possess simple representations in terms of matrix models and Schur
functions. We provide a brief introduction to this new interesting field,
which, after quantization, can serve as an additional bridge between knot and
integrability theories.Comment: 36 page
Revisiting the R$\nu$MDM Models

Combining neutrino mass generation and a dark matter candidate in a unified
model has always been intriguing. We revisit the class of R$\nu$MDM models,
which incorporate minimal dark matter in radiative neutrino mass models based
on the one-loop ultraviolet completions of the Weinberg operator. The
possibility of an exact accidental $Z_2$ is completely ruled out in this
scenario. We study the phenomenology of one of the models with an approximate
$Z_2$ symmetry. In addition to the Standard Model particles, it contains two
real scalar quintuplets, one vector- like quadruplet fermion and a fermionic
quintuplet. The neutral component of the fermionic quintuplet serves as a good
dark matter candidate which can be tested by the future direct and indirect
detection experiments. The constraints from flavor physics and
electroweak-scale naturalness are also discussed.Comment: 22 pages, 9 figures; v2: discussion of Z2-breaking term added,
  references added; v3: minor changes, matches published versio
Massive charged BTZ black holes in asymptotically (a)dS spacetimes

Motivated by recent developments of BTZ black holes and interesting results
of massive gravity, we investigate massive BTZ black holes in the presence of
Maxwell and Born-Infeld (BI) electrodynamics. We study geometrical properties
such as type of singularity and asymptotical behavior as well as thermodynamic
structure of the solutions through canonical ensemble. We show that despite the
existence of massive term, obtained solutions are asymptotically (a)dS and have
a curvature singularity at the origin. Then, we regard varying cosmological
constant and examine the Van der Waals like behavior of the solutions in
extended phase space. In addition, we employ geometrical thermodynamic
approaches and show that using Weinhold, Ruppeiner and Quevedo metrics leads to
existence of ensemble dependency while HPEM metric yields consistent picture.
For neutral solutions, it will be shown that generalization to massive gravity
leads to the presence of non-zero temperature and heat capacity for vanishing
horizon radius. Such behavior is not observed for linearly charged solutions
while generalization to nonlinearly one recovers this property.Comment: 20 pages, 15 figures. Title changed. Minor corrections to match
  version accepted by JHE
Radiative Neutrino Mass with $Z_3$ Dark matter: From Relic Density to
  LHC Signatures

In this work we give a comprehensive analysis on the phenomenology of a
specific $\mathbb{Z}_3$ dark matter (DM) model in which neutrino mass is
induced at two loops by interactions with a DM particle that can be a complex
scalar or a Dirac fermion. Both the DM properties in relic density and direct
detection and the LHC signatures are examined in great detail, and indirect
detection for gamma-ray excess from the Galactic Center is also discussed
briefly. On the DM side, both semi-annihilation and co-annihilation processes
play a crucial role in alleviating the tension of parameter space between relic
density and direct detection. On the collider side, new decay channels
resulting from $\mathbb{Z}_3$ particles lead to distinct signals at LHC.
Currently the trilepton signal is expected to give the most stringent bound for
both scalar and fermion DM candidates, and the signatures of fermion DM are
very similar to those of electroweakinos in simplified supersymmetric models.Comment: 40 pages, 24 figure
AMS-02 fits Dark Matter

In this work we perform a comprehensive statistical analysis of the AMS-02
electron, positron fluxes and the antiproton-to-proton ratio in the context of
a simplified dark matter model. We include known, standard astrophysical
sources and a dark matter component in the cosmic ray injection spectra. To
predict the AMS-02 observables we use propagation parameters extracted from
observed fluxes of heavier nuclei and the low energy part of the AMS-02 data.
We assume that the dark matter particle is a Majorana fermion coupling to third
generation fermions via a spin-0 mediator, and annihilating to multiple
channels at once. The simultaneous presence of various annihilation channels
provides the dark matter model with additional flexibility, and this enables us
to simultaneously fit all cosmic ray spectra using a simple particle physics
model and coherent astrophysical assumptions. Our results indicate that AMS-02
observations are not only consistent with the dark matter hypothesis within the
uncertainties, but adding a dark matter contribution improves the fit to the
data. Assuming, however, that dark matter is solely responsible for this
improvement of the fit, it is difficult to evade the latest CMB limits in this
model.Comment: 16 pages, 2 figures and 1 table. Published in JHE
NNLO QCD predictions for fully-differential top-quark pair production at
  the Tevatron

We present a comprehensive study of differential distributions for Tevatron
top-pair events at the level of stable top quarks. All calculations are
performed in NNLO QCD with the help of a fully differential partonic
Monte-Carlo and are exact at this order in perturbation theory. We present
predictions for all kinematic distributions for which data exists. Particular
attention is paid on the top-quark forward-backward asymmetry which we study in
detail. We compare the NNLO results with existing approximate NNLO predictions
as well as differential distributions computed with different parton
distribution sets. Theory errors are significantly smaller than current
experimental ones with overall agreement between theory and data.Comment: 38 pages, 13 figures, 13 table
Stop Search in the Compressed Region via Semileptonic Decays

In supersymmetric extensions of the Standard Model, the superpartners of the
top quark (stops) play the crucial role in addressing the naturalness problem.
For direct pair-production of stops with each stop decaying into a top quark
plus the lightest neutralino, the standard stop searches have difficulty
finding the stop for a compressed spectrum where the mass difference between
the stop and the lightest neutralino is close to the top quark mass, because
the events look too similar to the large $t\bar{t}$ background. With an
additional hard ISR jet, the two neutralinos from the stop decays are boosted
in the opposite direction and they can give rise to some missing transverse
energy. This may be used to distinguish the stop decays from the backgrounds.
In this paper we study the semileptonic decay of such signal events for the
compressed mass spectrum. Although the neutrino from the $W$ decay also
produces some missing transverse energy, its momentum can be reconstructed from
the kinematic assumptions and mass-shell conditions. It can then be subtracted
from the total missing transverse momentum to obtain the neutralino
contribution. Because it suffers from less backgrounds, we show that the
semileptonic decay channel has a better discovery reach than the fully hadronic
decay channel along the compressed line $m_{\tilde{t}} -
m_{\tilde{\chi}}\approx m_t$. With 300 $\text{fb}^{-1}$, the 13 TeV LHC can
discover the stop up to 500 GeV, covering the most natural parameter space
region.Comment: 17 pages, 7 figure
Commensurability effects in holographic homogeneous lattices

An interesting application of the gauge/gravity duality to condensed matter
physics is the description of a lattice via breaking translational invariance
on the gravity side. By making use of global symmetries, it is possible to do
so without scarifying homogeneity of the pertinent bulk solutions, which we
thus term as "homogeneous holographic lattices." Due to their technical
simplicity, these configurations have received a great deal of attention in the
last few years and have been shown to correctly describe momentum relaxation
and hence (finite) DC conductivities. However, it is not clear whether they are
able to capture other lattice effects which are of interest in condensed
matter. In this paper we investigate this question focusing our attention on
the phenomenon of commensurability, which arises when the lattice scale is
tuned to be equal to (an integer multiple of) another momentum scale in the
system. We do so by studying the formation of spatially modulated phases in
various models of homogeneous holographic lattices. Our results indicate that
the onset of the instability is controlled by the near horizon geometry, which
for insulating solutions does carry information about the lattice. However, we
observe no sharp connection between the characteristic momentum of the broken
phase and the lattice pitch, which calls into question the applicability of
these models to the physics of commensurability.Comment: 23 pages, 10 figures; v2: references adde