pinecone/core-2020-05-10-deduplication huggingface dataset:
Quantum Dynamics of Supergravity on R^3 x S^1

We study the quantum dynamics of N=1 supergravity in four dimensions with a
compact spatial circle. Supersymmetry ensures that the perturbative
contributions to the Casimir energy on the circle cancel. However, instanton
contributions remain. These render supersymmetric compactification on a circle
unstable and the background dynamically decompactifies back to four dimensions.
The calculation provides a testing ground for some old ideas in Euclidean
quantum gravity. In particular, we show that gravitational instantons are
associated to a new, infra-red scale which is naturally exponentially
suppressed relative to the Planck scale and arises from the logarithmic running
of the Gauss-Bonnet term. There are also some interesting technical details,
including the non-cancellation of bosonic and fermionic determinants around the
background of a self-dual gravitational instanton, despite the existence of
supersymmetry.Comment: 48 pages. v2: Added small summary to section
N-quantum approach to quantum field theory at finite T and $\mu$: the
  NJL model

We extend the N-quantum approach to quantum field theory to finite
temperature ($T$) and chemical potential ($\mu$) and apply it to the NJL model.
In this approach the Heisenberg fields are expressed using the Haag expansion
while temperature and chemical potential are introduced simultaneously through
a generalized Bogoliubov transformation. Known mean field results are recovered
using only the first term in the Haag expansion. In addition, we find that at
finite T and in the broken symmetry phase of the model the mean field
approximation can not diagonalize the Hamiltonian. Inclusion of scalar and
axial vector diquark channels in the SU(2)$_{rm f}$ $otimes$ SU(3)$_{\rm c}$
version of the model can lead to a lowering of the vacuum energy density. We
discuss how to go beyond the mean field approximation by including higher order
terms in the Haag expansion.Comment: 14 pages including 2 eps figures. Modified sentences on the lowering
  of the vacuum energy densit
M5-brane as a Nambu-Poisson geometry of a Multi D1-brane theory

We introduce a Nambu-Poisson bracket in the geometrical description of the
D=11 M5-brane. This procedure allows us, under some assumptions, to eliminate
the local degrees of freedom of the antisymmetric field in the M5-brane
Hamiltonian and to express it as a D=11 p-brane theory invariant under
symplectomorphisms. A regularization of the M5-brane in terms of a multi
D1-brane theory invariant under the $SU(N)\times SU(N)$ group in the limit when
$N\to\infty$ is proposed. Also, a regularization for the D=10 D4-brane in terms
of a multi D0-brane theory is suggested.Comment: 14 pages, no figures, revte
Conformal field theories with Z_N and Lie algebra symmetries

We construct two-dimensional conformal field theories with a Z_N symmetry,
based on the second solution of Fateev-Zamolodchikov for the parafermionic
chiral algebra. Primary operators are classified according to their
transformation properties under the dihedral group (Z_N x Z_2, where Z_2 stands
for the Z_N charge conjugation), as singlets, [(N-1)/2] different doublets, and
a disorder operator. In an assumed Coulomb gas scenario, the corresponding
vertex operators are accommodated by the Kac table based on the weight lattice
of the Lie algebra B_{(N-1)/2} when N is odd, and D_{N/2} when N is even. The
unitary theories are representations of the coset SO_n(N) x SO_2(N) /
SO_{n+2}(N), with n=1,2,.... We suggest that physically they realize the series
of multicritical points in statistical systems having a Z_N symmetry.Comment: 4 pages, 2 figure
A tale of two skyrmions: the nucleon's strange quark content in
  different large N_c limits

The nucleon's strange quark content comes from closed quark loops, and hence
should vanish at leading order in the traditional large $N_c$ (TLNC) limit.
Quark loops are not suppressed in the recently proposed orientifold large $N_c$
(OLNC) limit, and thus the strange quark content should be non-vanishing at
leading order. The Skyrme model is supposed to encode the large $N_c$ behavior
of baryons, and can be formulated for both of these large $N_c$ limits. There
is an apparent paradox associated with the large $N_c$ behavior of strange
quark matrix elements in the Skyrme model. The model only distinguishes between
the two large $N_c$ limits via the $N_c$ scaling of the couplings and the
Witten-Wess-Zumino term, so that a vanishing leading order strange matrix
element in the TLNC limit implies that it also vanishes at leading order in the
OLNC limit, contrary to the expectations based on the
suppression/non-suppression of quark loops. The resolution of this paradox is
that the Skyrme model does not include the most general type of meson-meson
interaction and, in fact, contains no meson-meson interactions which vanish for
the TLNC limit but not the OLNC. The inclusion of such terms in the model
yields the expected scaling for strange quark matrix elements.Comment: 4 page
Majorisation with applications to the calculus of variations

This paper explores some connections between rank one convexity,
multiplicative quasiconvexity and Schur convexity. Theorem 5.1 gives simple
necessary and sufficient conditions for an isotropic objective function to be
rank one convex on the set of matrices with positive determinant. Theorem 6.2
describes a class of possible non-polyconvex but multiplicative quasiconvex
isotropic functions. This class is not contained in a well known theorem of
Ball (6.3 in this paper) which gives sufficient conditions for an isotropic and
objective function to be polyconvex. We show here that there is a new way to
prove directly the quasiconvexity (in the multiplicative form). Relevance of
Schur convexity for the description of rank one convex hulls is explained.Comment: 13 page
Normalized Leonard pairs and Askey-Wilson relations

Let $V$ denote a vector space with finite positive dimension, and let $(A,B)$
denote a Leonard pair on $V$. As is known, the linear transformations $A,B$
satisfy the Askey-Wilson relations A^2B -bABA +BA^2 -g(AB+BA) -rB = hA^2 +wA
+eI,
  B^2A -bBAB +AB^2 -h(AB+BA) -sA = gB^2 +wB +fI, for some scalars
$b,g,h,r,s,w,e,f$. The scalar sequence is unique if the dimension of $V$ is at
least 4. If $c,c*,t,t*$ are scalars and $t,t*$ are not zero, then
$(tA+c,t*B+c*)$ is a Leonard pair on $V$ as well. These affine transformations
can be used to bring the Leonard pair or its Askey-Wilson relations into a
convenient form. This paper presents convenient normalizations of Leonard pairs
by the affine transformations, and exhibits explicit Askey-Wilson relations
satisfied by them.Comment: 22 pages; corrected version, with improved presentation of Section
Mesonic and Binding Contributions to the EMC Effect in a Relativistic
  Many Body Approach

We revise the conventional nuclear effects of Fermi motion, binding and
pionic effects in deep inelastic lepton scattering using a relativistic
formalism for an interacting Fermi sea and the local density approximation to
translate results from nuclear matter to finite nuclei. In addition we also
consider effects from rho-meson renormalization in the nucleus. The use of
nucleon Green's functions in terms of their spectral functions offers a precise
way to account for Fermi motion and binding. On the other hand the use of many
body Feynman diagrams in a relativistic framework allows one to avoid using
prescriptions given in the past to introduce relativistic corrections in a non
relativistic formalism. We show that with realistic nucleon spectral functions
and meson nucleus selfenergies one can get a reasonable description of the EMC
effect for x > 0.15, outside the shadowing region.Comment: 31 pages, LaTeX, 11 PostScript figures, final version to appear in
  Nuclear Physics
Uncovering Scaling Laws to Infer Multi-drug Response of Resistant Microbes and Cancer Cells

Drug resistance in bacterial infections and cancers constitutes a major threat to human health. Treatments often include several interacting drugs, but even potent therapies can become ineffective in resistant mutants. Here we simplify the picture of drug resistance by identifying scaling laws that unify the multi-drug responses of drug sensitive and drug resistant cells. Based on these scaling relationships, we are able to infer the two-drug response of resistant mutants in previously unsampled regions of dosage space in clinically relevant microbes such as E. coli, E. faecalis, S. aureus and S. cerevisiae, as well as in human non-small cell lung cancer, melanoma, and breast cancer stem cells. Importantly, we find that scaling relations also apply across evolutionarily close strains. Finally, scaling allows one to rapidly identify new drug combinations and predict potent dosage regimes for targeting resistant mutants without any prior mechanistic knowledge of the specific resistance mechanism.Molecular and Cellular Biolog
Planck 2015 results. XVII. Constraints on primordial non-Gaussianity

The Planck full mission cosmic microwave background(CMB) temperature and
E-mode polarization maps are analysed to obtain constraints on primordial
non-Gaussianity(NG). Using three classes of optimal bispectrum estimators -
separable template-fitting (KSW), binned, and modal - we obtain consistent
values for the local, equilateral, and orthogonal bispectrum amplitudes,
quoting as our final result from temperature alone fNL^local=2.5+\-5.7,
fNL^equil=-16+\-70 and fNL^ortho=-34+\-33(68%CL). Combining temperature and
polarization data we obtain fNL^local=0.8+\-5.0, fNL^equil=-4+\-43 and
fNL^ortho=-26+\-21 (68%CL). The results are based on cross-validation of these
estimators on simulations, are stable across component separation techniques,
pass an extensive suite of tests, and are consistent with Minkowski functionals
based measurements. The effect of time-domain de-glitching systematics on the
bispectrum is negligible. In spite of these test outcomes we conservatively
label the results including polarization data as preliminary, owing to a known
mismatch of the noise model in simulations and the data. Beyond fNL estimates,
we present model-independent reconstructions of the CMB bispectrum and derive
constraints on early universe scenarios that generate NG, including general
single-field and axion inflation, initial state modifications, parity-violating
tensor bispectra, and directionally dependent vector models. We also present a
wide survey of scale-dependent oscillatory bispectra, and we look for
isocurvature NG. Our constraint on the local primordial trispectrum amplitude
is gNL^local=(-9.0+\-7.7)x10^4 (68%CL), and we perform an analysis of
additional trispectrum shapes. The global picture is one of consistency with
the premises of the LambdaCDM cosmology, namely that the structure we observe
today was sourced by adiabatic, passive, Gaussian, and primordial seed
perturbations.[abridged]Comment: 68 pages, 32 figures, 31 tables. Subsection 6.3 on "Primordial
  curvature reconstruction" added; analysis in subsection 8.3 extended
  (paragraph "High frequency resonance model estimator" added); introduction to
  Section 10 and Appendix B added. This paper is one of a set associated with
  the 2015 data release from Planck. Matches version accepted for publication
  in Astronomy & Astrophysic
Evaluating the application of research-based guidance to the design of an emergency preparedness leaflet.

UNLABELLED: Guidelines for the design of emergency communications were derived from primary research and interrogation of the literature. The guidelines were used to re-design a nuclear emergency preparedness leaflet routinely distributed to households in the local area. Pre-test measures of memory for, and self-reported understanding of, nuclear safety information were collected. The findings revealed high levels of non-receipt of the leaflet, and among those who did receive it, memory for safety advice was poor. Subjective evaluations of the trial leaflet suggested that it was preferred and judged easier to understand than the original. Objective measures of memory for the two leaflets were also recorded, once after the study period, and again one week or four weeks later. Memory for the advice was better, at all time periods, when participants studied the trial leaflet. The findings showcase evaluation of emergency preparedness literature and suggest that extant research findings can be applied to the design of communications to improve memory and understandability. STATEMENT OF RELEVANCE: Studies are described that showcase the use of research-based guidelines to design emergency communications and provide both subjective and objective data to support designing emergency communications in this way. In addition, the research evaluates the effectiveness of emergency preparedness leaflets that are routinely distributed to households. This work is of relevance to academics interested in risk communication and to practitioners involved in civil protection and emergency preparedness
Directed graph representation of half-rate additive codes over GF(4)

We show that (n, 2n) additive codes over GF(4) can be represented as directed
graphs. This generalizes earlier results on self-dual additive codes over GF(4), which correspond
to undirected graphs. Graph representation reduces the complexity of code classification,
and enables us to classify additive (n, 2n) codes over GF(4) of length up to 7. From
this we also derive classifications of isodual and formally self-dual codes.We introduce new
constructions of circulant and bordered circulant directed graph codes, and show that these
codes will always be isodual. A computer search of all such codes of length up to 26 reveals
that these constructions produce many codes of high minimum distance. In particular, we
find new near-extremal formally self-dual codes of length 11 and 13, and isodual codes of
length 24, 25, and 26 with better minimum distance than the best known self-dual codes
μ-MAR: Multiplane 3D Marker based Registration for depth-sensing cameras

Many applications including object reconstruction, robot guidance, and. scene mapping require the registration of multiple views from a scene to generate a complete geometric and appearance model of it. In real situations, transformations between views are unknown and it is necessary to apply expert inference to estimate them. In the last few years, the emergence of low-cost depth-sensing cameras has strengthened the research on this topic, motivating a plethora of new applications. Although they have enough resolution and accuracy for many applications, some situations may not be solved with general state-of-the-art registration methods due to the signal-to-noise ratio (SNR) and the resolution of the data provided. The problem of working with low SNR data, in general terms, may appear in any 3D system, then it is necessary to propose novel solutions in this aspect. In this paper, we propose a method, μ-MAR, able to both coarse and fine register sets of 3D points provided by low-cost depth-sensing cameras, despite it is not restricted to these sensors, into a common coordinate system. The method is able to overcome the noisy data problem by means of using a model-based solution of multiplane registration. Specifically, it iteratively registers 3D markers composed by multiple planes extracted from points of multiple views of the scene. As the markers and the object of interest are static in the scenario, the transformations obtained for the markers are applied to the object in order to reconstruct it. Experiments have been performed using synthetic and real data. The synthetic data allows a qualitative and quantitative evaluation by means of visual inspection and Hausdorff distance respectively. The real data experiments show the performance of the proposal using data acquired by a Primesense Carmine RGB-D sensor. The method has been compared to several state-of-the-art methods. The results show the good performance of the μ-MAR to register objects with high accuracy in presence of noisy data outperforming the existing methods.This work has been supported by grant University of Alicante projects GRE11-01 and grant Valencian Government GV/2013/005
Search for a charged Higgs boson in pp collisions at √s = 8 TeV

A search for a charged Higgs boson is performed with a data sample corresponding to an integrated luminosity of 19.7 ± 0.5 fb−1 collected with the CMS detector in proton-proton collisions at √s= 8,TeV. The charged Higgs boson is searched for in top quark decays for mH± < mt − mb, and in the direct production pp → t(b)H± for mH± > mt − mb. The H± → τ±ντ and H± → tb decay modes in the final states τh+jets, μτh, ℓ+jets, and ℓℓ’ (ℓ =e, μ) are considered in the search. No signal is observed and 95% confidence level upper limits are set on the charged Higgs boson production. A model-independent upper limit on the product branching fraction (Formula presented.) is obtained in the mass range mH± = 80–160 GeV, while the upper limit on the cross section times branching fraction (Formula presented.) is set in the mass range mH+ = 180–600 GeV. Here, σ(pp → t(b)H±) stands for the cross section sum (Formula presented.), an upper limit on σ(pp → t(b)H±) of 2.0–0.13 pb is set for mH± = 180–600 GeV. The combination of all considered decay modes and final states is used to set exclusion limits in the mH±−tan β parameter space in different MSSM benchmark scenario
KLWMIJ Reggeon field theory beyond the large N c limit

We extend the analysis of KLWMIJ evolution in terms of QCD Reggeon fields beyond leading order in the 1/ N c expansion. We show that there is only one type of corrections to the leading order Hamiltonian discussed in [1]. These are terms linear in original Reggeons and quadratic in conjugate Reggeon operators. All of these have the interpretation as vertices of the “‘merging”’ type 2 → 1, where two Reggeons merge into one. Importantly, the triple Pomeron merging vertex does not emerge from the KLWMIJ Hamiltonian. We show that, although in the range of applicability of the KLWMIJ Hamiltonian these merging terms are subleading in N c , in the dense-dense regime they all become of the same (leading) order in N c . In this regime vertices involving higher Reggeons are enhanced by inverse powers of the coupling constant
Towards large r from [ p , q ]-inflation

The recent discovery of B-mode polarizations in the CMB by the BICEP2 collaboration motivates the study of large-field inflation models which can naturally lead to significant tensor-to-scalar ratios. A class of such models in string theory are axion monodromy models, where the shift symmetry of an axion is broken by some branes. In type IIB string theory such models so far utilized NS5 branes which lead to a linear potential with an induced tensor-to-scalar ratio of r ~ 0.07. In this short note we study a modification of the scenario to include [ p , q ] 7-branes and show that this leads to an enhanced tensor-to-scalar ratio r ~ 0.14. Unlike 5-branes, 7-branes are in-principle compatible with supersymmetry, however we find that an implementation of the inflationary scenario requires an explicit breaking of supersymmetry by the 7-branes during inflation. This leads to similar challenges as in 5-brane models. We discuss the relation to high-scale supersymmetry breaking after inflation
The dark Z ′ portal: direct, indirect and collider searches

We perform a detailed study of the dark Z ′ portal using a generic parametrization of the Z ′-quarks couplings, both for light (8-15) GeV and heavy (100-1000) GeV dark matter scenarios. We present a comprehensive study of the collider phenomenology including jet clustering, hadronization, and detector artifacts, which allows us to derive accurate bounds from the search for new resonances in dijet events and from mono-jet events in the LHC 7 TeV, LHC 8 TeV, and Tevatron 1.96 TeV data. We also compute the dark matter relic abundance, the relevant scattering cross sections and pair-annihilation spectrum, and compare our results with the current PLANCK, Fermi-LAT and XENON100/LUX bounds. Lastly, we highlight the importance of complementary searches for dark matter, and outline the excluded versus still viable parameter space regions of the dark Z ′ portal
Top-pair production and decay at NLO matched with parton showers

We present a next-to-leading order (NLO) calculation of t t ¯ $$ t\overline{t} $$ production in hadronic collisions interfaced to shower generators according to the POWHEG method. We start from an NLO result from previous work, obtained in the zero width limit, where radiative corrections to both production and decays are included. The POWHEG interface required an extension of the POWHEG BOX framework, in order to deal with radiation from the decay of resonances. This extension is fully general (i.e. it can be applied in principle to any process considered in the zero width limit), and is here applied for the first time. In order to perform a realistic simulation, we introduce finite width effects using different approximations, that we validated by comparing with published exact NLO results. We have interfaced our POWHEG code to the PYTHIA8 shower Monte Carlo generator. At this stage, we dealt with novel issues related to the treatment of resonances, especially with regard to the initial scale for the shower that needs to be set appropriately. This procedure affects, for example, the fragmentation function of the b quark, that we have studied with particular attention. We believe that the tool presented here improves over previous generators for all aspects that have to do with top decays, and especially for the study of issues related to top mass measurements that involve B hadrons or b jets. The work presented here also constitutes a first step towards a fully consistent matching of NLO calculations involving intermediate resonances decaying into coloured particles, with parton showers
Rational quantum integrable systems of DN type with polarized spin reversal operators

We study the spin Calogero model of DN type with polarized spin reversal operators, as well as its associated spin chain of Haldane–Shastry type, both in the antiferromagnetic and ferromagnetic cases. We compute the spectrum and the partition function of the former model in closed form, from which we derive an exact formula for the chain's partition function in terms of products of partition functions of Polychronakos–Frahm spin chains of type A . Using a recursion relation for the latter partition functions that we derive in the paper, we are able to numerically evaluate the partition function, and thus the spectrum, of the DN -type spin chain for relatively high values of the number of spins N . We analyze several global properties of the chain's spectrum, such as the asymptotic level density, the distribution of consecutive spacings of the unfolded spectrum, and the average degeneracy. In particular, our results suggest that this chain is invariant under a suitable Yangian group, and that its spectrum coincides with that of a Yangian-invariant vertex model with linear energy function and dispersion relation
Tensor hierarchy and generalized Cartan calculus in SL(3) × SL(2) exceptional field theory

We construct exceptional field theory for the duality group SL(3) × SL(2). The theory is defined on a space with 8 ‘external’ coordinates and 6 ‘internal’ coordinates in the (3, 2) fundamental representation, leading to a 14-dimensional generalized spacetime. The bosonic theory is uniquely determined by gauge invariance under generalized external and internal diffeomorphisms. The latter invariance can be made manifest by introducing higher form gauge fields and a so-called tensor hierarchy, which we systematically develop to much higher degree than in previous studies. To this end we introduce a novel Cartan-like tensor calculus based on a covariant nil-potent differential, generalizing the exterior derivative of conventional differential geometry. The theory encodes the full D = 11 or type IIB supergravity, respectively