pinecone/core-2020-05-10-deduplication huggingface dataset:
Exploring the Minimal 4D $\mathcal{N}=1$ SCFT

We study the conformal bootstrap constraints for 4D $\mathcal{N}=1$
superconformal field theories containing a chiral operator $\phi$ and the
chiral ring relation $\phi^2=0$. Hints for a minimal interacting SCFT in this
class have appeared in previous numerical bootstrap studies. We perform a
detailed study of the properties of this conjectured theory, establishing that
the corresponding solution to the bootstrap constraints contains a
$\text{U}(1)_R$ current multiplet and estimating the central charge and
low-lying operator spectrum of this theory.Comment: 9 pages, 11 figure
Relating Double Field Theory to the Scalar Potential of N=2 Gauged
  Supergravity

The double field theory action in the flux formulation is dimensionally
reduced on a Calabi-Yau three-fold equipped with non-vanishing type IIB
geometric and non-geometric fluxes. First, we rewrite the metric-dependent
reduced DFT action in terms of quantities that can be evaluated without
explicitly knowing the metric on the Calabi-Yau manifold. Second, using
properties of special geometry we obtain the scalar potential of N=2 gauged
supergravity. After an orientifold projection, this potential is consistent
with the scalar potential arising from the flux-induced superpotential, plus an
additional D-term contribution.Comment: 44 pages; v2: minor changes, references added; v3: published version,
  more detailed discussion in section 2.3, reference adde
Twistors and supertwistors for exceptional field theory

As a means of examining the section condition and its possible solutions and
relaxations, we perform twistor transforms related to versions of exceptional
field theory with Minkowski signature. The spinor parametrisation of the
momenta naturally solves simultaneously both the mass-shell condition and the
(weak) section condition. It is shown that the incidence relations for
multi-particle twistors force them to share a common section, but not to be
orthogonal. The supersymmetric extension contains additional scalar fermionic
variables shown to be kappa-symmetry invariants. We speculate on some
implications, among them a possible relation to higher spin theory.Comment: 14 pp. v2: minor change
On RR Couplings, Singularity Structures and all order $\alpha'$ contact
  interactions to BPS String Amplitudes

We evaluate five point world-sheet string theory amplitudes of one transverse
scalar field, two world volume gauge fields ( and two transverse scalars, a
gauge field) in the presence of a closed string Ramond-Ramond vertex operator
in its symmetric picture. We carry out all the entire S-matrix elements of five
point mixed RR-scalars/gauge fields $<C^{-1}\phi ^{0}A^{-1} A^{0}>$,
$<C^{-1}\phi ^{-1}A^{0} A^{0}>$, $<C^{-1}A^{0}\phi ^{-1}\phi^{0}>$ and
$<C^{-1}A^{-1}\phi ^{0}\phi^{0}>$ in detail and start comparing all order
$\alpha'$ contact interactions and singularities in both transverse and world
volume directions. We explore the presence of various new couplings in string
theory effective actions and find out their all order $\alpha'$ higher
derivative corrections in both type IIA and IIB. Ultimately we make various
remarks for the singularities and contact terms whose RR momenta are embedded
in transverse directions. $\alpha'$ corrections to some of Myers terms are also
addressed.Comment: V2:39 pages,no figure, Latex file. The style has been improved,
  explanations and clarifications are given. The accepted version in JHE
Neutrino Physics with Non-Standard Interactions at INO

Non-standard neutrino interactions (NSI) involved in neutrino propagation
inside Earth matter could potentially alter atmospheric neutrino fluxes. In
this work, we look at the impact of these NSI on the signal at the ICAL
detector to be built at the India-based Neutrino Observatory (INO). We show how
the sensitivity to the neutrino mass hierarchy of ICAL changes in the presence
of NSI. The mass hierarchy sensitivity is shown to be rather sensitive to the
NSI parameters $\epsilon_{e\mu}$ and $\epsilon_{e\tau}$, while the dependence
on $\epsilon_{\mu\tau}$ and $\epsilon_{\tau\tau}$ is seen to be very mild, once
the $\chi^2$ is marginalised over oscillation and NSI parameters. If the NSI
are large enough, the event spectrum at ICAL is expected to be altered and this
can be used to discover new physics. We calculate the lower limit on NSI
parameters above which ICAL could discover NSI at a given C.L. from 10 years of
data. If NSI were too small, the null signal at ICAL can constrain the NSI
parameters. We give upper limits on the NSI parameters at any given C.L. that
one is expected to put from 10 years of running of ICAL. Finally, we give C.L.
contours in the NSI parameter space that is expected to be still allowed from
10 years of running of the experiment.Comment: 24 pages, minor improvement
Probing the Hidden Higgs Bosons of the $Y=0$ Triplet- and
  Singlet-Extended Supersymmetric Standard Model at the LHC

We investigate the scalar sector in an extension of the Minimal
Supersymmetric Standard Model (MSSM) containing a $SU(2)$ Higgs triplet of zero
hypercharge and a gauge singlet beside the $SU(2)$ scalar doublets. In
particular, we focus on a scenario of this model which allows a light
pseudoscalar and/or a scalar below $100$ GeV, consistent with the most recent
data from the LHC and the earlier data from the LEP experiments. We analyze the
exotic decay of the discovered Higgs $(h_{125})$ into two light (hidden) Higgs
bosons present in the extension. The latter are allowed by the uncertainties in
the Higgs decay $h_{125}\to WW^*$, $h_{125}\to ZZ^*$ and $h_{125}\to
\gamma\gamma$. The study of the parameter space for such additional
scalars/pseudoscalars decay of the Higgs is performed in the gluon fusion
channel. The extra hidden Higgs bosons of the enlarged scalar sector, if they
exist, will then decay into lighter fermion paris, i.e., $b\bar{b}$,
$\tau\bar{\tau}$ and $\mu\bar{\mu}$ via the mixing with the doublets. A
detailed simulation using PYTHIA of the $2b+2\tau$, $\geq 3\tau$, $2b+2\mu$ and
$2\tau+2\mu$ final states is presented. From our analysis we conclude that,
depending on the selected benchmark points, such decay modes can be explored
with an integrated luminosity of 25 fb$^{-1}$ at the LHC at a center of mass
energy of 13 TeV.Comment: 28 pages and 16 figure
Some Predictions of Diquark Model for Hidden Charm Pentaquark Discovered
  at the LHCb

The LHCb has discovered two new states with preferred $J^P$ quantum numbers
$3/2^-$ and $5/2^+$ from $\Lambda_b$ decays. These new states can be
interpreted as hidden charm pentaquarks. It has been argued that the main
features of these pentaquarks can be described by diquark model. The diquark
model predicts that the $3/2^-$ and $5/2^+$ are in two separate octet
multiplets of flavor $SU(3)$ and there is also an additional decuplet
pentaquark multiplet. Finding the states in these multiplets can provide
crucial evidence for this model. The weak decays of b-baryon to a light meson
and a pentaquark can have Cabibbo allowed and suppressed decay channels. We
find that in the $SU(3)$ limit, for $U$-spin related decay modes the ratio of
the decay rates of Cabibbo suppressed to Cabibbo allowed decay channels is
given by $|V_{cd}|^2/|V_{cs}|^2$. There are also other testable relations for
b-baryon weak decays into a pentaquark and a light pseudoscalar. These
relations can be used as tests for the diquark model for pentaquark.Comment: revtex, 19 pages, 3 figures. one reference added and some typos
  correcte
Closing in on compressed gluino-neutralino spectra at the LHC

A huge swath of parameter space in the context of the Minimal Supersymmetric
Standard Model (MSSM) has been ruled at after run I of the LHC. Various
exclusion contours in the $m_{\tilde{g}}-\m_{\tilde{\chi}_{1}^{0}}$ plane were
derived by the experimental collaborations, all based on three-body gluino
decay topologies. These limits are however extremely model dependent and do not
always reflect the level of exclusion. If the gluino-neutralino spectrum is
compressed, then the current mass limits can be drastically reduced. In such
situations, the radiative decay of the gluino $\gino \ra g \neut{1}$ can be
dominant and used as a sensitive probe of small mass splittings. We examine the
sensitivity of constraints of some Run I experimental searches on this decay
after recasting them within the \texttt{MadAnalysis5} framework. The recasted
searches are now part of the \texttt{MadAnalysis5} Public Analysis Database. We
also design a dedicated search strategy and investigate its prospects to
uncover this decay mode of the gluino at run II of the LHC. We emphasize that a
multijet search strategy may be more sensitive than a monojet one, even in the
case of very small mass differences.Comment: 34 pages , 6 figures. Version accepted for publication for JHE
Testing the minimal $S_4$ model of neutrinos with the Dirac and Majorana
  phases

We propose two new simple lepton flavor models in the framework of the $S_4$
flavor symmetry. The neutrino mass matrices, which are given by two complex
parameters, lead to the inverted mass hierarchy. The charged lepton mass matrix
has the 1-2 lepton flavor mixing, which gives the non-vanishing reactor angle
$\theta_{13}$. These models predict the Dirac phase and the Majorana phases,
which are testable in the future experiments. The predicted magnitudes of the
effective neutrino mass for the neutrino-less double beta decay are in the
regions as $32~\text{meV}\lesssim |m_{ee}|\lesssim 49~\text{meV}$ and
$34~\text{meV}\lesssim |m_{ee}|\lesssim 59~\text{meV}$, respectively. These
values are close to the expected reaches of the coming experiments. The total
sum of the neutrino masses are predicted in both models as
$0.0952~\text{eV}\lesssim \sum m_i\lesssim 0.101~\text{eV}$ and
$0.150~\text{eV}\lesssim \sum m_i\lesssim 0.160~\text{eV}$, respectively.Comment: 27 pages, 14 figures, final versio
Four-point correlation function of stress-energy tensors in N=4
  superconformal theories

We derive the explicit expression for the four-point correlation function of
stress-energy tensors in four-dimensional N=4 superconformal theory. We show
that it has a remarkably simple and suggestive form allowing us to predict a
large class of four-point correlation functions involving the stress-energy
tensor and other conserved currents. We then apply the obtained results on the
correlation functions to computing the energy-energy correlations, which
measure the flow of energy in the final states created from the vacuum by a
source. We demonstrate that they are given by a universal function independent
of the choice of the source. Our analysis relies only on N=4 superconformal
symmetry and does not use the dynamics of the theory.Comment: 31 pages; v2: references adde
Cosmological $\alpha$-Attractors and de Sitter Landscape

We provide a unified description of cosmological $\alpha$-attractors and
late-time acceleration, in excellent agreement with the latest Planck data. Our
construction involves two superfields playing distinctive roles: one is the
dynamical field and its evolution determines inflation and dark energy, the
other is nilpotent and responsible for a landscape of vacua and supersymmetry
breaking. We prove that the attractor nature of the theory is enhanced when
combining the two sectors: cosmological attractors are very stable with respect
to any possible value of the cosmological constant and, interestingly, to any
generic coupling of the inflationary sector with the field responsible for
uplifting. Finally, as related result, we show how specific couplings generate
an arbitrary inflaton potential in a supergravity framework with varying Kahler
curvature.Comment: 14 pages, 3 figures. v3: minor clarifications and refs added. JHEP
  versio
Overcoming Obstacles to Colour-Kinematics Duality at Two Loops

The discovery of colour-kinematics duality has allowed great progress in our
understanding of the UV structure of gravity. However, it has proven difficult
to find numerators which satisfy colour-kinematics duality in certain cases. We
discuss obstacles to building a set of such numerators in the context of the
five-gluon amplitude with all helicities positive at two loops. We are able to
overcome the obstacles by adding more loop momentum to our numerator to
accommodate tension between the values of certain cuts and the symmetries of
certain diagrams. At the same time, we maintain control over the size of our
ansatz by identifying a highly constraining but desirable symmetry property of
our master numerator. The resulting numerators have twelve powers of loop
momenta rather than the seven one would expect from the Feynman rules.Comment: 21 pages + refs, 2 figures, 2 tables + ancillary file; v2 updated
  reference
On the field-antifield (a)symmetry of the pure spinor superstring

In this work, the DDF-like approach to the pure spinor cohomology is extended
to the next ghost number level, the so called antifields. In a direct
(supersymmetric) parallel to the bosonic string, some properties of the ghost
number two cohomology are derived with the enlargement of the DDF algebra.
Also, the DDF conjugates of the b ghost zero mode emerge naturally from the
extended algebra and the physical state condition is discussed. Unlike the
bosonic string case, the cohomology analysis of the pure spinor b ghost is
restricted to BRST-closed states.Comment: 54 pages (including review section and two appendices). Comments
  added in the Introduction. Published versio
A remark on the asymptotic form of BPS multi-dyon solutions and their
  conserved charges

We evaluate the gauge invariant, dynamically conserved charges, recently
obtained from the integral form of the Yang-Mills equations, for the BPS
multi-dyon solutions of a Yang-Mills-Higgs theory associated to any compact
semi-simple gauge group G. Those charges are shown to correspond to the
eigenvalues of the next-to-leading term of the asymptotic form of the Higgs
field at spatial infinity, and so coinciding with the usual topological charges
of those solutions. Such results show that many of the topological charges
considered in the literature are in fact dynamical charges, which conservation
follows from the global properties of classical Yang-Mills theories encoded
into their integral dynamical equations. The conservation of those charges can
not be obtained from the differential form of Yang-Mills equations.Comment: Version to be published in JHEP, Journal of High Energy Physics (19
  pages, no figures, some examples added
Regularization of the Light-Cone Gauge Gluon Propagator Singularities
  Using Sub-Gauge Conditions

Perturbative QCD calculations in the light-cone gauge have long suffered from
the ambiguity associated with the regularization of the poles in the gluon
propagator. In this work we study sub-gauge conditions within the light-cone
gauge corresponding to several known ways of regulating the gluon propagator.
Using the functional integral calculation of the gluon propagator, we rederive
the known sub-gauge conditions for the theta-function gauges and identify the
sub-gauge condition for the principal value (PV) regularization of the gluon
propagator's light-cone poles. The obtained sub-gauge condition for the PV case
is further verified by a sample calculation of the classical Yang-Mills field
of two collinear ultrarelativistic point color charges. Our method does not
allow one to construct a sub-gauge condition corresponding to the well-known
Mandelstam-Leibbrandt prescription for regulating the gluon propagator poles.Comment: 19 pages, 2 figure
An equal area law for holographic entanglement entropy of the AdS-RN
  black hole

The Anti-de Sitter-Reissner-Nordstrom (AdS-RN) black hole in the canonical
ensemble undergoes a phase transition similar to the liquid-gas phase
transition, i.e. the isocharges on the entropy-temperature plane develop an
unstable branch when the charge is smaller than a critical value. It was later
discovered that the isocharges on the entanglement entropy-temperature plane
also exhibit the same van der Waals-like structure, for spherical entangling
regions. In this paper, we present numerical results which sharpen this
similarity between entanglement entropy and black hole entropy, by showing that
both of these entropies obey Maxwell's equal area law to an accuracy of around
1 %. Moreover, we checked this for a wide range of size of the spherical
entangling region, and the equal area law holds independently of the size. We
also checked the equal area law for AdS-RN in 4 and 5 dimensions, so the
conclusion is not specific to a particular dimension. Finally, we repeated the
same procedure for a similar, van der Waals-like transition of the dyonic black
hole in AdS in a mixed ensemble (fixed electric potential and fixed magnetic
charge), and showed that the equal area law is not valid in this case. Thus the
equal area law for entanglement entropy seems to be specific to the AdS-RN
background.Comment: 17 pages, multiple figures. v4: matches published versio
Smooth Wilson Loops in N=4 Non-Chiral Superspace

We consider a supersymmetric Wilson loop operator for 4d N=4 super Yang-Mills
theory which is the natural object dual to the AdS_5 x S^5 superstring in the
AdS/CFT correspondence. It generalizes the traditional bosonic 1/2 BPS
Maldacena-Wilson loop operator and completes recent constructions in the
literature to smooth (non-light-like) loops in the full N=4 non-chiral
superspace. This Wilson loop operator enjoys global superconformal and local
kappa-symmetry of which a detailed discussion is given. Moreover, the
finiteness of its vacuum expectation value is proven at leading order in
perturbation theory. We determine the leading vacuum expectation value for
general paths both at the component field level up to quartic order in
anti-commuting coordinates and in the full non-chiral superspace in suitable
gauges. Finally, we discuss loops built from quadric splines joined in such a
way that the path derivatives are continuous at the intersection.Comment: 44 pages. v2 Added some clarifying comments. Matches the published
  versio
Integrability of Smooth Wilson Loops in N=4 Superspace

We perform a detailed study of the Yangian symmetry of smooth supersymmetric
Maldacena-Wilson loops in planar N=4 super Yang-Mills theory. This hidden
symmetry extends the global superconformal symmetry present for these
observables. A gauge-covariant action of the Yangian generators on the Wilson
line is established that generalizes previous constructions built upon path
variations. Employing these generators the Yangian symmetry is proven for
general paths in non-chiral N=4 superspace at the first perturbative order. The
bi-local piece of the level-one generators requires the use of a regulator due
to divergences in the coincidence limit. We perform regularization by point
splitting in detail, thereby constructing additional local and boundary
contributions as regularization for all level-one Yangian generators. Moreover,
the Yangian algebra at level one is checked and compatibility with local
kappa-symmetry is established. Finally, the consistency of the Yangian symmetry
is shown to depend on two properties: The vanishing of the dual Coxeter number
of the underlying superconformal algebra and the existence of a novel
superspace "G-identity" for the gauge field theory. This tightly constrains the
conformal gauge theories to which integrability can possibly apply.Comment: 44 pages, 2 figures. v2: small comments added, version to be
  published in JHE
Soft theorems from anomalous symmetries

We discuss constraints imposed by soft limits for effective field theories
arising from symmetry breaking. In particular, we consider those associated
with anomalous conformal symmetry as well as duality symmetries in
supergravity. We verify these soft theorems for the dilaton effective action
relevant for the a-theorem, as well as the one-loop effective action for N=4
supergravity. Using the universality of leading transcendental coefficients in
the alpha' expansion of string theory amplitudes, we study the matrix elements
of operator R^4 with half maximal supersymmetry. We construct the non-linear
completion of R^4 that satisfies both single and double soft theorems up to
seven points. This supports the existence of duality invariant completion of
R^4.Comment: 32 pages, 2 figures; v2: minor modifications, published versio
Three-Charge Black Holes and Quarter BPS States in Little String Theory

We show that the system of $k$ NS5-branes wrapping $\mathbb{T}^4\times S^1$
has non-trivial vacuum structure. Different vacua have different spectra of 1/4
BPS states that carry momentum and winding around the $S^1$. In one vacuum,
such states are described by black holes; in another, they can be thought of as
perturbative BPS states in Double Scaled Little String Theory. In general, both
kinds of states are present. We compute the degeneracy of perturbative BPS
states exactly, and show that it differs from that of the corresponding black
holes. We comment on the implication of our results to the black hole
microstate program, UV/IR mixing in Little String Theory, string
thermodynamics, the string/black hole transition, and other issues.Comment: 53 pages, 3 figure
Fermion Dipole Moment and Holography

In the background of a charged AdS black hole, we consider a Dirac particle
endowed with an arbitrary magnetic dipole moment. For non-zero charge and
dipole coupling of the bulk fermion, we find that the dual boundary theory can
be plagued with superluminal modes. Requiring consistency of the dual CFT
amounts to constraining the strength of the dipole coupling by an upper bound.
We briefly discuss the implications of our results for the physics of
holographic non-Fermi liquids.Comment: 13 pages, 4 figures, revised version with WKB analysis added,
  accepted for publication to JHE
Berry's connection, K\"ahler geometry and the Nahm construction of
  monopoles

We study supersymmetric deformations of N = 4 quantum mechanics with a Kahler
target space admitting a holomorphic isometry. We show that the twisted mass
deformation generalises to a deformation constructed from matrix-valued
functions of the moment map, which obey the Nahm equations. We also explain how
N = 4 supersymmetry implies that the Berry connection on the vacuum bundle for
this theory satisfies the BPS monopole equations. In the case where the target
space is a Riemann sphere, our analysis reduces to the standard Nahm
construction of monopoles. This generalises an earlier result by Sonner and
Tong to the case of monopoles of magnetic charge greater than one.Comment: 12 pages. v2: minor edit
Flavored gauge mediation in the Peccei-Quinn NMSSM

We investigate a particular version of the Peccei-Quinn (PQ) NMSSM
characterized by an economical and rigidly hierarchical flavor structure and
based on flavored gauge mediation and on some considerations inspired by string
theory GUTs. In this way we can express the Lagrangian of the PQ NMSSM through
very few parameters. The obtained model is studied numerically and confronted
with the most relevant phenomenological constraints. We show that typical
spectra are for the most part too heavy to be significantly probed at the LHC,
but regions of the parameter space exist yielding signatures that might
possibly be observed during Run II. We also calculate the fine tuning of the
model. We show that, in spite of the appearance of large scales in the
superpotential and soft terms, it does not exceed the tuning present in the
MSSM for equivalent spectra, which is of the order of 10^4.Comment: 23 pages, 3 figures. Some clarifications added to the text, JHEP
  published versio