pinecone/core-2020-05-10-deduplication huggingface dataset:
Neutrino hierarchy and fermion spectrum from a single family in six
  dimensions: realistic predictions

In this paper, we move from a "proof of concept" to challenging predictions
in a flavour model emerging from a single fermion family in six dimensions
(6-D) with the two extra dimensions compactified on a sphere. The most striking
predictions (beyond the basic ingredients already demonstrated for a realistic
quark mass pattern) are for the neutrino sector. Not only can 4-D Majorana
masses be generated from 6-D (where no Majorana spinors exist), but Majorana
masses are naturally associated to large mixing. The model favours inverted
hierarchy and a quasi-Dirac partial suppression of neutrinoless double beta
decay.Comment: 18 pages, 1 figure. v2: minor clarifications. Version accepted by
  JHE
5d superconformal indices at large N and holography

We propose a general formula for the perturbative large N superconformal
index of 5d quiver fixed point theories that have an AdS(6)xS(4)/Z(n)
supergravity dual. This index is obtained from the parent theory by projecting
to orbifold-invariant states and adding the twisted sector contributions. Our
result agrees with expectations from the dual supergravity description. We test
our formula against the direct computation of the index for Z(2) and Z(3) and
find complete agreement.Comment: 18 pages, no figure
Single-Scale Natural SUSY

We consider the prospects for natural SUSY models consistent with current
data. Recent constraints make the standard paradigm unnatural so we consider
what could be a minimal extension consistent with what we now know. The most
promising such scenarios extend the MSSM with new tree-level Higgs interactions
that can lift its mass to at least 125 GeV and also allow for flavor-dependent
soft terms so that the third generation squarks are lighter than current bounds
on the first and second generation squarks. We argue that a common feature of
almost all such models is the need for a new scale near 10 TeV, such as a scale
of Higgsing or confinement of a new gauge group. We consider the question
whether such a model can naturally derive from a single mass scale associated
with supersymmetry breaking. Most such models simply postulate new scales,
leaving their proximity to the scale of MSSM soft terms a mystery. This
coincidence problem may be thought of as a mild tuning, analogous to the usual
mu problem. We find that a single mass scale origin is challenging, but suggest
that a more natural origin for such a new dynamical scale is the gravitino
mass, m_{3/2}, in theories where the MSSM soft terms are a loop factor below
m_{3/2}. As an example, we build a variant of the NMSSM where the singlet S is
composite, and the strong dynamics leading to compositeness is triggered by
masses of order m_{3/2} for some fields. Our focus is the Higgs sector, but our
model is compatible with a light stop (with the other generation squarks heavy,
or with R-parity violation or another mechanism to hide them from current
searches). All the interesting low-energy mass scales, including linear terms
for S playing a key role in EWSB, arise dynamically from the single scale
m_{3/2}. However, numerical coefficients from RG effects and wavefunction
factors in an extra dimension complicate the otherwise simple story.Comment: 32 pages, 3 figures; version accepted by JHE
Stringy Membranes in AdS/CFT

We study membrane configurations in AdS_{7/4}xS^{4/7}. The membranes are
wrapped around the compact manifold S^{4/7} and are dynamically equivalent to
bosonic strings in AdS_5. We thus conveniently identify them as "Stringy
Membranes". For the case of AdS_7xS^4, their construction is carried out by
embedding the Polyakov action for classical bosonic strings in AdS_5, into the
corresponding membrane action. Therefore, every string configuration in AdS_5
can be realized by an appropriately chosen stringy membrane in AdS_7xS^4. We
discuss the possibility of this being also the case for stringy membranes in
AdS_4xS^7/Z^k (k > 1 or k = 1). By performing a stability analysis to the
constructed solutions, we find that the (membrane) fluctuations along their
transverse directions are organized in multiple Lam\'{e} stability bands and
gaps in the space of parameters of the configurations. In this membrane
picture, strings exhibit a single band/gap structure.Comment: 40 pages, 9 figures; published versio
Tetraquarks, their Masses and Decays in QED_2

Recent observations by Belle and BESIII of charged quarkonium-like resonances
give new stimulus for theoretical investigation of exotic hadrons in general
and heavy tetraquarks in particular. We use QED_2, a confining theory, as a
model for the masses and decays of tetraquarks. Here we discuss the states (Q
Qbar q qbar) and (Q Q qbar qbar) (and its anti-particle), where Q and q are two
fermion flavors with masses M and m, so that M > m. We then discuss decay modes
of these states into (Q Qqbar), (q qbar), (Q qbar), (Qbar q). It turns out that
(Q Qbar q qbar) is stable, while (Q Q qbar qbar) is not.Comment: LaTeX, 9 pages, 2 figures; notation clarified, some minor correction
Lifshitz to AdS flow with interpolating p-brane solutions

In continuation with our studies of Lifshitz like D$p$-brane solutions, we
propose a class of 1/4 BPS supersymmetric interpolating solutions which
interpolate between IR Lifshitz solutions and UV AdS solutions smoothly. We
demonstrate properties of these classical solutions near the two fixed points.
These interpolating solutions are then used to calculate the entanglement
entropies of strip-like subsystems. With these bulk solutions the entropy
functional also gets modified. We also make a curious observation about the
electric-magnetic duality and the thermal entropy of the Hodge-dual Lifshitz
D$p$ brane systems.Comment: 18 pages; v2: minor changes, including a bad typo in the eqs of
  Sec-(4.3), references adde
3d dualities from 4d dualities for orthogonal groups

We extend recent work on the relation of 4d and 3d IR dualities of
supersymmetric gauge theories with four supercharges to the case of orthogonal
gauge groups. The distinction between different SO(N) gauge theories in 4d
plays an important role in this relation. We show that the 4d duality leads to
a 3d duality between an SO(N_c) gauge theory with N_f flavors and an
SO(N_f-N_c+2) theory with N_f flavors and extra singlets, and we derive its
generalization in the presence of Chern-Simons terms. There are two different
O(N) theories in 3d, which we denote by O(N)_\pm, and we also show that the
O(N_c)_- gauge theory is dual to a Spin(N_f-N_c+2) theory, and derive from 4d
the known duality between O(N_c)_+ and O(N_f-N_c+2)_+. We verify the
consistency of these 3d dualities by various methods, including index
computations.Comment: 49 pages, harvmac. v2: a minor chang
Dirac-Born-Infeld-Volkov-Akulov and deformation of supersymmetry

We deform the action and the supersymmetry transformations of the d=10 and d=4 Maxwell supermultiplets so that at each order of the deformation the theory has 16 Maxwell multiplet deformed supersymmetries as well as 16 Volkov-Akulov type non-linear supersymmetries. The result agrees with the expansion in the string tension of the explicit action of the Dirac-Born-Infeld model and its supersymmetries, extracted from D9 and D3 superbranes, respectively. The half-maximal Dirac-Born-Infeld models with 8 Maxwell supermultiplet deformed supersymmetries and 8 Volkov-Akulov type supersymmetries are described by a new class of d=6 vector branes related to chiral (2,0) supergravity, which we denote as `Vp-branes'. We use a space-filling V5 superbrane for the d=6 model and a V3 superbrane for the d=4 half-maximal Dirac-Born-Infeld (DBI) models. In this way we present a completion to all orders of the deformation of the Maxwell supermultiplets with maximal 16+16 supersymmetries in d=10 and 4, and half-maximal 8+8 supersymmetries in d=6 and 4.status: publishe
Three-loop octagons and n-gons in maximally supersymmetric Yang-Mills
  theory

We study the S-matrix of planar $\mathcal{N}=4$ supersymmetric Yang-Mills
theory when external momenta are restricted to a two-dimensional subspace of
Minkowski space. We find significant simplifications and new, interesting
structures for tree and loop amplitudes in two-dimensional kinematics; in
particular, the higher-point amplitudes we consider can be obtained from those
with lowest-points by a collinear uplifting. Based on a compact formula for
one-loop N${}^2$MHV amplitudes, we use an equation proposed previously to
compute, for the first time, the complete two-loop NMHV and three-loop MHV
octagons, which we conjecture to uplift to give the full $n$-point amplitudes
up to simpler logarithmic terms or dilogarithmic terms.Comment: v2: important typos fixed. 38 pages, 4 figures. An ancillary file
  with two-loop NMHV "remainders" for n=10,12 can be found at
  http://www.nbi.dk/~schuot/nmhvremainders.zi
Electroweak Precision Observables, New Physics and the Nature of a 126
  GeV Higgs Boson

We perform the fit of electroweak precision observables within the Standard
Model with a 126 GeV Higgs boson, compare the results with the theoretical
predictions and discuss the impact of recent experimental and theoretical
improvements. We introduce New Physics contributions in a model-independent way
and fit for the S, T and U parameters, for the $\epsilon_{1,2,3,b}$ ones, for
modified $Zb\bar{b}$ couplings and for a modified Higgs coupling to vector
bosons. We point out that composite Higgs models are very strongly constrained.
Finally, we compute the bounds on dimension-six operators relevant for the
electroweak fit.Comment: 44 pages, 12 figures. v2: references added, version to appear in JHE
Simulation of electron-positron annihilation into hadrons with the event
  generator PHOKHARA

The precise determination of the cross section for electron-positron
annihilation into hadrons is one of the central tasks of ongoing experiments at
low energy colliders. These measurements have to be complemented by Monte Carlo
generators which simulate a large number of final states and include higher
order radiative corrections. With this motivation in mind the generator
PHOKHARA is extended to allow for the simulation of final states with zero, one
or two real photons. At the same time corrections from the emission of one or
two virtual photons are included, such that a full next-to-next-to leading
order generator is available. The stability and consistency of the program is
tested. The results (for muon-pair final states) are compared to the programs
KKMC and MCGPJ and implications for the analysis of various hadronic final
states are investigated.Comment: references added, minor modifications to the tex
Light-like Wilson loops in ABJM and maximal transcendentality

We revisit the computation of the two-loop light-like tetragonal Wilson loop  for three dimensional pure Chern-Simons and N=6 Chern-Simons-matter theory,  within dimensional regularization with dimensional reduction scheme. Our  examination shows that, contrary to prior belief, the result respects maximal  transcendentality as is the case of the four-point scattering amplitude of the  theory. Remarkably, the corrected result matches exactly the scattering  amplitude both in the divergent and in the finite parts, constants included.Fil: Bianchi, Marco S.. Humboldt-Universit¨at zu Berlin. Institut f¨ur Physik; Alemania;Fil: Giribet, Gaston Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina;Fil: Leoni, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina; Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina;Fil: Penati, Silvia. Universit`a degli studi di Milano–Bicocca. Dipartimento di Fisica; Italia; Istituto Nazionale di Fisica Nucleare; Italia
Weyl transformations and trace anomalies in N=1, D=4 supergravities

We identify the supersymmetric extension of Weyl transformations in various
types of supergravities, the minimal, nonminimal and new minimal N=1 SUGRA in
4D, formulated in terms of superfields. Based also on previous results we
conclude that there are only two types of trace anomalies in nonminimal and new
minimal supergravities, which correspond to the two nontrivial cocycles of the
minimal supergravity and, when reduced to component form, to the well-known
squared Weyl density and Euler density. There are nevertheless in new minimal
supergravity other nontrivial cocycles which, however, are mapped to zero in
the minimal supergravity.Comment: 31 pages, two references added; section 6 removed and replaced with
  alternative derivatio
Dynamic Mott gap from holographic fermions in geometries with
  hyperscaling violation

We investigate a dynamically generated Mott gap from holographic fermions in
asymptotically geometries with hyperscaling violation by employing a bulk
dipole coupling for the fermion field. We find that when the coupling strength
increases the spectral function first transfers to the negative frequency
region but soon redistributes to the positive region. A stable gap and two
bands emerges for all momentum when the coupling strength beyonds a critical
value. Generally, The upper band on the positive frequency axis is much sharper
than the lower band on the negative side. When the diploe coupling increases
further, the gap becomes larger and the up band still keeps sharp while the
lower band disperses and widens, concentrating on the small momentum region. We
also find that the bands will be smoothed out gradually with the increasing of
hyperscaling violation.Comment: 15 pages, 8 figures, accepted by JHE
Renormalization group invariants in neutrino sector

We show renormalization group invariants in neutrino sector. These are found
from a simple analytical discussion of Majorana mass matrix for light
neutrinos. It is shown that the invariants are obtained by taking ratios among
elements of the Majorana neutrino mass matrix. The invariance is independent of
neutrino mass ordering and a parameterization of mixing matrix for the lepton
sector. Parameters in the runnings under renormalization group equations in the
neutrino sector are also analyzed.Comment: 17 pages, 10 figures, minor change
BPS Black Holes in AdS4 from M-theory

We study supersymmetric black holes in $AdS_4$ in the framework of four
dimensional gauged $\N=2$ supergravity coupled to hypermultiplets. We derive
the flow equations for a general electrically gauged theory where the gauge
group is Abelian and, restricting them to the fixed points, we derive the
gauged supergravity analogue of the attractor equations for theories coupled to
hypermultiplets. The particular models we analyze are consistent truncations of
M-theory on certain Sasaki-Einstein seven-manifolds. We study the space of
horizon solutions of the form $AdS_2\times \Sigma_g$ with both electric and
magnetic charges and find a four-dimensional solution space when the theory
arises from a reduction on $Q^{111}$. For other $SE_7$ reductions, the
solutions space is a subspace of this. We construct explicit examples of
spherically symmetric black holes numerically.Comment: 38 page, 4 figures; typos correcte
The overarching finite symmetry group of Kummer surfaces in the Mathieu group M24.

In view of a potential interpretation of the role of the Mathieu group M24 in the context\ud
of strings compactied on K3 surfaces, we develop techniques to combine groups of\ud
symmetries from dierent K3 surfaces to larger `overarching' symmetry groups. We construct\ud
a bijection between the full integral homology lattice of K3 and the Niemeier lattice\ud
of type A24\ud
1 , which is simultaneously compatible with the nite symplectic automorphism\ud
groups of all Kummer surfaces lying on an appropriate path in moduli space connecting\ud
the square and the tetrahedral Kummer surfaces. The Niemeier lattice serves to express\ud
all these symplectic automorphisms as elements of the Mathieu group M24, generating the\ud
`overarching nite symmetry group' (Z2)4oA7 of Kummer surfaces. This group has order\ud
40320, thus surpassing the size of the largest nite symplectic automorphism group of a\ud
K3 surface by orders of magnitude. For every Kummer surface this group contains the\ud
group of symplectic automorphisms leaving the Kahler class invariant which is induced\ud
from the underlying torus. Our results are in line with the existence proofs of Mukai\ud
and Kondo, that nite groups of symplectic automorphisms of K3 are subgroups of one\ud
of eleven subgroups of M23, and we extend their techniques of lattice embeddings for all\ud
Kummer surfaces with Kahler class induced from the underlying torus
Eigenvectors and scalar products for long range interacting spin chains II: the finite size effects

International audienceIn this note, we study the eigenvectors and the scalar products the integrable long-range deformation of the XXX spin chain defined in [1]. The model is solved exactly by algebraic Bethe ansatz, and it coincides in the bulk with the Inozemtsev spin chain. At the closing point it contains a defect which effectively removes the wrapping interactions. Here we concentrate on determining the defect term for the first non-trivial order in perturbation in the deformation parameter and how it affects the Bethe ansatz equations. Our study is motivated by the relation with the dilatation operator of the N = 4 gauge theory in the su(2) sector. Introduction: Long range spin chains. In this paper we consider long-range integrable deformations of the XXX spin-1/2 spin chain. There are several methods to turn a nearest-neighbor spin chain into a long-range ones. One method, used in [2, 3], is to deform the conserved charges according to d dλ Q r (λ) = i [χ(λ), Q r (λ)] , (1
Measurement of physical parameters with a weight function method and its
  application to the Higgs boson mass reconstruction

We propose a new method to measure various physical parameters, using
characteristic weight functions. This method requires only lepton energy
distribution and ideally it does not depend on the velocity of the parent
particle. We demonstrate an application of this method by simulating a
reconstruction of the Higgs boson mass in the H-> WW -> lnu lnu decay mode at
the LHC. We show that systematic errors are suppressed compared to statistical
errors. In the vector boson fusion channel, the statistical accuracy of the
mass determination is estimated to be +12% and -14% at an integrated luminosity
of 100fb^{-1}, assuming the Higgs boson mass to be 125GeV and root{s}=14TeV.Comment: 31 pages, 15 figures; Version to appear in JHE
The kaon semileptonic form factor with near physical domain wall quarks

We present a new calculation of the K->pi semileptonic form factor at zero
momentum transfer in domain wall lattice QCD with Nf=2+1 dynamical quark
flavours. By using partially twisted boundary conditions we simulate directly
at the phenomenologically relevant point of zero momentum transfer. We perform
a joint analysis for all available ensembles which include three different
lattice spacings (a=0.09-0.14fm), large physical volumes (m_pi*L>3.9) and pion
masses as low as 171 MeV. The comprehensive set of simulation points allows for
a detailed study of systematic effects leading to the prediction
f+(0)=0.9670(20)(+18/-46), where the first error is statistical and the second
error systematic. The result allows us to extract the CKM-matrix element
|Vus|=0.2237(+13/-8) and confirm first-row CKM-unitarity in the Standard Model
at the sub per mille level.Comment: 16 apges, 5 figure
Leading singularities and off-shell conformal integrals.

The three-loop four-point function of stress-tensor multiplets in N = 4 super\ud
Yang-Mills theory contains two so far unknown, off-shell, conformal integrals, in addition\ud
to the known, ladder-type integrals. In this paper we evaluate the unknown integrals, thus\ud
obtaining the three-loop correlation function analytically. The integrals have the generic\ud
structure of rational functions multiplied by (multiple) polylogarithms. We use the idea of\ud
leading singularities to obtain the rational coefficients, the symbol — with an appropriate\ud
ansatz for its structure — as a means of characterising multiple polylogarithms, and the\ud
technique of asymptotic expansion of Feynman integrals to obtain the integrals in certain\ud
limits. The limiting behaviour uniquely fixes the symbols of the integrals, which we then\ud
lift to find the corresponding polylogarithmic functions. The final formulae are numerically\ud
confirmed. The techniques we develop can be applied more generally, and we illustrate this\ud
by analytically evaluating one of the integrals contributing to the same four-point function\ud
at four loops. This example shows a connection between the leading singularities and the\ud
entries of the symbol
Coset conformal field theory and instanton counting on C^2/Z_p

We study conformal field theory with the symmetry algebra
$\mathcal{A}(2,p)=\hat{\mathfrak{gl}}(n)_{2}/\hat{\mathfrak{gl}}(n-p)_2$. In
order to support the conjecture that this algebra acts on the moduli space of
instantons on $\mathbb{C}^{2}/\mathbb{Z}_{p}$, we calculate the characters of
its representations and check their coincidence with the generating functions
of the fixed points of the moduli space of instantons.
  We show that the algebra $\mathcal{A}(2,p)$ can be realized in two ways. The
first realization is connected with the cross-product of $p$ Virasoro and $p$
Heisenberg algebras: $\mathcal{H}^{p}\times \textrm{Vir}^{p}$. The second
realization is connected with: $\mathcal{H}^{p}\times
\hat{\mathfrak{sl}}(p)_2\times (\hat{\mathfrak{sl}}(2)_p \times
\hat{\mathfrak{sl}}(2)_{n-p}/\hat{\mathfrak{sl}}(2)_n)$. The equivalence of
these two realizations provides the non-trivial identity for the characters of
$\mathcal{A}(2,p)$.
  The moduli space of instantons on $\mathbb{C}^{2}/\mathbb{Z}_{p}$ admits two
different compactifications. This leads to two different bases for the
representations of $\mathcal{A}(2,p)$. We use this fact to explain the
existence of two forms of the instanton pure partition functions.Comment: 23 pages, 1 figur
Learning How to Count: A High Multiplicity Search for the LHC

We introduce a search technique that is sensitive to a broad class of signals
with large final state multiplicities. Events are clustered into large radius
jets and jet substructure techniques are used to count the number of subjets
within each jet. The search consists of a cut on the total number of subjets in
the event as well as the summed jet mass and missing energy. Two different
techniques for counting subjets are described and expected sensitivities are
presented for eight benchmark signals. These signals exhibit diverse
phenomenology, including 2-step cascade decays, direct three body decays, and
multi-top final states. We find improved sensitivity to these signals as
compared to previous high multiplicity searches as well as a reduced reliance
on missing energy requirements. One benefit of this approach is that it allows
for natural data driven estimates of the QCD background.Comment: 36 pages, 12 Figures, 5 Tables; journal versio