pinecone/core-2020-05-10-deduplication huggingface dataset:
Oriented Event Shapes at N3LL + O(as^2)

We analyze oriented event-shapes in the context of Soft-Collinear Effective
Theory (SCET) and in Fixed-Order perturbation theory. Oriented event-shapes are
distributions of event-shape variables which are differential on the angle
theta_T that the thrust axis forms with the electron-positron beam. We show
that at any order in perturbation theory and for any event shape, only two
angular structures can appear: F_0 = 3/8(1 + cos^2 theta_T) and F_1 = (1 -
3cos^2 theta_T). When integrating over theta_T to recover the more familiar
event-shape distributions, only F_0 survives. The validity of our proof goes
beyond perturbation theory, and hence only these two structures are present at
the hadron level. The proof also carries over massive particles. Using SCET
techniques we show that singular terms can only arise in the F_0 term. Since
only the hard function is sensitive to the orientation of the thrust axis, this
statement applies also for recoil-sensitive variables such as Jet Broadening.
We carry out resummation at N3LL of singular terms for Thrust, Heavy-Jet Mass,
the sum of the Hemisphere Masses and C-parameter. We also compute the
Fixed-Order distributions for these event-shapes at O(as) analytically and at
O(as^2) with the program Event2.Comment: 29 pages, 10 figures. Extended discussion on SCET proof. Added a plot
  comparing to experimental data. References added. Conclusions unchanged.
  Matches published versio
AdS Dyonic Black Hole and its Thermodynamics

We obtain spherically-symmetric and $\R^2$-symmetric dyonic black holes that
are asymptotic to anti-de Sitter space-time (AdS), which are solutions in
maximal gauged four-dimensional supergravity, with just one of the U(1) fields
carrying both the electric and magnetic charges $(Q,P)$. We study the
thermodynamics, and find that the usually-expected first law does not hold
unless P=0, Q=0 or P=Q. For general values of the charges, we find that the
first law requires a modification with a new pair of thermodynamic conjugate
variables. We show that they describe the scalar hair that breaks some of the
asymptotic AdS symmetries.Comment: 21 pages, typos corrected, discussion of Euclidean action adde
The pion vector form factor from lattice QCD and NNLO chiral
  perturbation theory

We present a comprehensive study of the electromagnetic form factor, the
decay constant and the mass of the pion computed in lattice QCD with two
degenerate O(a)-improved Wilson quarks at three different lattice spacings in
the range 0.05-0.08fm and pion masses between 280 and 630MeV at m_pi L >~ 4.
Using partially twisted boundary conditions and stochastic estimators, we
obtain a dense set of precise data points for the form factor at very small
momentum transfers, allowing for a model-independent extraction of the charge
radius. Chiral Perturbation Theory (ChPT) augmented by terms which model
lattice artefacts is then compared to the data. At next-to-leading order the
effective theory fails to produce a consistent description of the full set of
pion observables but describes the data well when only the decay constant and
mass are considered. By contrast, using the next-to-next-to-leading order
expressions to perform global fits result in a consistent description of all
data. We obtain <r^2_pi>=0.481(33)(13)fm^2 as our final result for the charge
radius at the physical point. Our calculation also yields estimates for the
pion decay constant in the chiral limit, F_pi/F=1.080(16)(6), the quark
condensate, Sigma^{1/3}_MSbar(2GeV)=261(13)(1)MeV and several low-energy
constants of SU(2) ChPT.Comment: 36 pages, 10 figure
New results on ν μ → ν τ appearance with the OPERA experiment in the CNGS beam

The OPERA neutrino experiment is designed to perform the first observation of neutrino oscillations in direct appearance mode in the νμ→ντ channel, via the detection of the τ-leptons created in charged current ντ interactions. The detector, located in the underground Gran Sasso Laboratory, consists of an emulsion/lead target with an average mass of about 1.2 kt, complemented by electronic detectors. It is exposed to the CERN Neutrinos to Gran Sasso beam, with a baseline of 730 km and a mean energy of 17 GeV. The observation of the first ντ candidate event and the analysis of the 2008-2009 neutrino sample have been reported in previous publications. This work describes substantial improvements in the analysis and in the evaluation of the detection efficiencies and backgrounds using new simulation tools. The analysis is extended to a sub-sample of 2010 and 2011 data, resulting from an electronic detector-based pre-selection, in which an additional ντ candidate has been observed. The significance of the two events in terms of a νμ→ντ oscillation signal is of 2.40 σ
Chern Simons duality with a fundamental boson and fermion

We compute the thermal free energy for all renormalizable Chern Simon
theories coupled to a single fundamental bosonic and fermionic field in the 't
Hooft large N limit. We use our results to conjecture a strong weak coupling
duality invariance for this class of theories. Our conjectured duality reduces
to Giveon Kutasov duality when restricted to {\cal N}=2 supersymmetric theories
and to an earlier conjectured bosonization duality in an appropriate decoupling
limit. Consequently the bosonization duality may be regarded as a deformation
of Giveon Kutasov duality, suggesting that it is true even at large but finite
N.Comment: 36 pages, 4 figures, v2: typos correcte
Extended higher spin holography and Grassmannian models

We propose holographic dualities between higher spin gravity theories
extended with Chan-Paton factor on AdS_3 and a large N limit of two dimensional
Grassmannian models with and without supersymmetry. These proposals are natural
extensions of the duality without Chan-Paton factor, and the extensions are
motivated by a higher dimensional version of the duality, which implies a
possible relation to superstring theory via ABJ theory. As evidence for the
proposals, we show that the free limit of the Grassmannian models have the
higher spin symmetry expected from the dual gravity theory. Furthermore, we
construct currents in the 't Hooft limit of the supersymmetric Grassmannian
model and compare them with the currents from the bulk theory. One-loop
partition function of the supergravity theory is reproduced by the 't Hooft
limit of the Grassmannian model after decoupling a gauge sector.Comment: 55 pages, minor changes, published versio
Dipole-dipole scattering in CGC/saturation approach at high energy:
  summing Pomeron loops

In this paper we demonstrate that the dense system of partons (gluons) can be
produced in dilute-dilute system scattering, using the example of dipole-dipole
collisions. This increase in density stems from the intensive gluon cascades
that can be described by the enhanced BFKL Pomeron diagrams (Pomeron loops).
For the first time we found the analytical solution to the equation for
diffraction production in the dipole-dense parton system scattering, using the
simplified BFKL kernel. Having this solution as well as the solution to
Balitsky- Kovchegov equation we developed technique that allowed us to
calculate the total cross section, cross sections for single and double
diffractions in the MPSI approximation. Calculating inclusive production and
two gluon correlations we see that the dense and strongly correlated system of
gluons can be produced at high energy in the dipole-dipole scattering.Comment: 22pp. 22 figures in .eps file
Weighted Laplacians, cocycles and recursion relations

Hodge's formula represents the gravitational MHV amplitude as the determinant
of a minor of a certain matrix. When expanded, this determinant becomes a sum
over weighted trees, which is the form of the MHV formula first obtained by
Bern, Dixon, Perelstein, Rozowsky and rediscovered by Nguyen, Spradlin,
Volovich and Wen. The gravity MHV amplitude satisfies the Britto, Cachazo, Feng
and Witten recursion relation. The main building block of the MHV amplitude,
the so-called half-soft function, satisfies a different, Berends-Giele-type
recursion relation. We show that all these facts are illustrations to a more
general story.
  We consider a weighted Laplacian for a complete graph of n vertices. The
matrix tree theorem states that its diagonal minor determinants are all equal
and given by a sum over spanning trees. We show that, for any choice of a
cocycle on the graph, the minor determinants satisfy a Berends-Giele as well as
Britto-Cachazo-Feng-Witten type recursion relation. Our proofs are purely
combinatorial.Comment: 12 pages, some figures embedded in the tex
Analytic results for two-loop master integrals for Bhabha scattering I

We evaluate analytically the master integrals for one of two types of planar
families contributing to massive two-loop Bhabha scattering in QED. As in our
previous paper, we apply a recently suggested new strategy to solve
differential equations for master integrals for families of Feynman integrals.
The crucial point of this strategy is to use a new basis of the master
integrals where all master integrals are pure functions of uniform weight. This
allows to cast the differential equations into a simple canonical form, which
can straightforwardly be integrated order by order in epsilon in dimensional
regularization. The boundary conditions are also particularly transparent in
this setup. We identify the class of functions relevant to this problem to all
orders in epsilon. We present the results up to weight four for all except one
integrals in terms of a subset of Goncharov polylogarithms, which one may call
two-dimensional harmonic polylogarithms. For one integral, and more generally
at higher weight, the solution is written in terms of Chen iterated integrals.Comment: 25 pages, 4 figure
Estimates for the Thermal Width of Heavy Quarkonia in Strongly Coupled
  Plasmas from Holography

The gauge/gravity duality is used to investigate the imaginary part of the
heavy quark potential (defined via the rectangular Wilson loop) in strongly
coupled plasmas. This quantity can be used to estimate the width of heavy
quarkonia in a plasma at strong coupling. In this paper the thermal worldsheet
fluctuation method, proposed in [J.Noronha and A.Dumitru, Phys.\ Rev.\ Lett.\
{\bf 103}, 152304 (2009)], is revisited and general conditions for the
existence of an imaginary part for the heavy quark potential computed within
classical gravity models are obtained. We prove a general result that
establishes the connection between this imaginary part of the potential
determined holographically and the area law displayed by the Wilson loop in the
vacuum of confining gauge theories. We also determine the imaginary part of the
heavy quark potential in a strongly coupled plasma dual to Gauss-Bonnet
gravity. This provides an estimate of how the thermal width of heavy quarkonia
changes with the shear viscosity to entropy density ratio, $\eta/s$, at strong
coupling.Comment: 45 pages, 20 figures; new references and appendix adde
Holography and Conformal Anomaly Matching

We discuss various issues related to the understanding of the conformal
anomaly matching in CFT from the dual holographic viewpoint. First, we act with
a PBH diffeomorphism on a generic 5D RG flow geometry and show that the
corresponding on-shell bulk action reproduces the Wess-Zumino term for the
dilaton of broken conformal symmetry, with the expected coefficient aUV-aIR.
Then we consider a specific 3D example of RG flow whose UV asymptotics is
normalizable and admits a 6D lifting. We promote a modulus \rho appearing in
the geometry to a function of boundary coordinates. In a 6D description {\rho}
is the scale of an SU(2) instanton. We determine the smooth deformed background
up to second order in the space-time derivatives of \rho and find that the 3D
on-shell action reproduces a boundary kinetic term for the massless field \tau=
log(\rho) with the correct coefficient \delta c=cUV-cIR. We further analyze the
linearized fluctuations around the deformed background geometry and compute the
one-point functions <T\mu\nu> and show that they are reproduced by a
Liouville-type action for the massless scalar \tau, with background charge due
to the coupling to the 2D curvature R. The resulting central charge matches
\delta c. We give an interpretation of this action in terms of the (4,0) SCFT
of the D1-D5 system in type I theory.Comment: v3: published version, 50 p
On Ghost-free Supersymmetric Galileons

We present consistent supersymmetric theories invariant under the
generalization of the Galilean shift symmetry to ${\cal{N}}=1$ superspace.
These theories are constructed via the decoupling limit of certain
non-minimally derivative coupled supergravities, thus they correspond to the
supersymmetrization of the so-called covariant Galileon. Specifically, these
theories are constructed in the linearized ${\cal{N}}=1$ new-minimal
supergravity set-up where the chiral supermultiplet is minimally coupled to
gravity via the standard R-current contact term, and, at the same time,
non-minimally derivatively coupled to the Einstein superfield.Comment: 12 pages, published versio
Wild Wall Crossing and BPS Giants

We show that the BPS spectrum of pure SU(3) four-dimensional super Yang-Mills
with N=2 supersymmetry exhibits a surprising phenomenon: there are regions of
the Coulomb branch where the growth of the BPS degeneracies with the charge is
exponential. We show this using spectral networks and independently using
wall-crossing formulae and quiver methods. The computations using spectral
networks provide a very nontrivial example of how these networks determine the
four-dimensional BPS spectrum. We comment on some physical implications of the
wild spectrum: for example, exponentially many field-theoretic BPS states with
large charge are gigantic. Finally, we exhibit some surprising, thus far
unexplained, regularities of the BPS spectrum.Comment: 105 pages, 25 figure
Black hole solutions in d=5 Chern-Simons gravity

The five dimensional Einstein-Gauss-Bonnet gravity with a negative
cosmological constant becomes, for a special value of the Gauss-Bonnet coupling
constant, a Chern-Simons (CS) theory of gravity. In this work we discuss the
properties of several different types of black object solutions of this model.
Special attention is paid to the case of spinning black holes with
equal-magnitude angular momenta which posses a regular horizon of spherical
topology. Closed form solutions are obtained in the small angular momentum
limit. Nonperturbative solutions are constructed by solving numerically the
equations of the model. Apart from that, new exact solutions describing static
squashed black holes and black strings are also discussed. The action and
global charges of all configurations studied in this work are obtained by using
the quasilocal formalism with boundary counterterms generalized for the case of
a d=5 CS theory.Comment: 34 pages, 3 figure
On Three-Algebra and Bi-Fundamental Matter Amplitudes and Integrability
  of Supergravity

We explore tree-level amplitude relations for SU(N)xSU(M) bi-fundamental
matter theories. Embedding the group-theory structure in a Lie three-algebra,
we derive Kleiss-Kuijf-like relations for bi-fundamental matter theories in
general dimension. We investigate the three-algebra color-kinematics duality
for these theories. Unlike the Yang-Mills two-algebra case, the three-algebra
Bern-Carrasco-Johansson relations depend on the spacetime dimension and on the
detailed symmetry properties of the structure constants. We find the presence
of such relations in three and two dimensions, and absence in D>3.
Surprisingly, beyond six point, such relations are absent in the
Aharony-Bergman-Jafferis-Maldacena theory for general gauge group, while the
Bagger-Lambert-Gustavsson theory, and its supersymmetry truncations, obey the
color-kinematics duality like clockwork. At four and six points the relevant
partial amplitudes of the two theories are bijectively related, explaining
previous results in the literature. In D=2 the color-kinematics duality gives
results consistent with integrability of two-dimensional $\mathcal{N}=16$
supergravity: The four-point amplitude satisfies a Yang-Baxter equation; the
six- and eight-point amplitudes vanish for certain kinematics away from
factorization channels, as expected from integrability.Comment: 52 page
Dynamical entanglement entropy with angular momentum and U(1) charge

We consider time-dependent entanglement entropy (EE) for a 1+1 dimensional
CFT in the presence of angular momentum and U(1) charge. The EE saturates,
irrespective of the initial state, to the grand canonical entropy after a time
large compared with the length of the entangling interval. We reproduce the CFT
results from an AdS dual consisting of a spinning BTZ black hole and a flat
U(1) connection. The apparent discrepancy that the holographic EE does not a
priori depend on the U(1) charge while the CFT EE does, is resolved by the
charge-dependent shift between the bulk and boundary stress tensors. We show
that for small entangling intervals, the entanglement entropy obeys the first
law of thermodynamics, as conjectured recently. The saturation of the EE in the
field theory is shown to follow from a version of quantum ergodicity; the
derivation indicates that it should hold for conformal as well as massive
theories in any number of dimensions.Comment: 22 pages, 4 figures; (v2) many comments added for better clarity;
  typos fixed; references adde
Non-Decoupling MSSM Higgs Sector and Light Superpartners

In the ``non-decoupling'' region of the Higgs sector in MSSM, the heavier
CP-even Higgs boson (H^0) is Standard-Model-like and close to the charged Higgs
bosons (H^\pm) in mass, while other neutral Higgs bosons (h^0,A^0) are lighter
and near the Z mass. This scenario is consistent with the current Higgs search
limits, although the improved sensitivity for a light charged Higgs boson
search t -> H^+ b may result in certain degree of tension. We demonstrate that
it can pass the stringent flavor constraints, provided there are other light
SUSY particles to contribute in the loop induced processes. In turn, the
non-decoupling Higgs sector implies the existence of light (left-handed) stop,
sbottom and Wino-like gauginos, with mass all below 250 GeV. These light
super-partners can still escape the current SUSY searches at the LHC. Dedicated
searches for soft decay products should be devised for the LHC experiments to
improve the searching sensitivity. The ILC would be able to cover the full
spectrum region. The solutions for the viable SUSY parameters result from
subtle cancellations and are often missed by the generic multiple dimensional
scans, highlighting the importance of theoretical guidance in search for such
special cases.Comment: 27 pages, 6 figures, 1 table. Published in JHEP 1311 (2013) 05
Observables and Microscopic Entropy of Higher Spin Black Holes

In the context of recently proposed holographic dualities between higher spin
theories in AdS3 and 1+1-dimensional CFTs with W-symmetry algebras, we revisit
the definition of higher spin black hole thermodynamics and the dictionary
between bulk fields and dual CFT operators. We build a canonical formalism
based on three ingredients: a gauge-invariant definition of conserved charges
and chemical potentials in the presence of higher spin black holes, a canonical
definition of entropy in the bulk, and a bulk-to-boundary dictionary aligned
with the asymptotic symmetry algebra. We show that our canonical formalism
shares the same formal structure as the so-called holomorphic formalism, but
differs in the definition of charges and chemical potentials and in the
bulk-to-boundary dictionary. Most importantly, we show that it admits a
consistent CFT interpretation. We discuss the spin-2 and spin-3 cases in detail
and generalize our construction to theories based on the hs[\lambda] algebra,
and on the sl(N,R) algebra for any choice of sl(2,R) embedding.Comment: 47 pages, references added, published versio
More on gapped Goldstones at finite density: More gapped Goldstones

It was recently argued that certain relativistic theories at finite density
can exhibit an unconventional spectrum of Goldstone excitations, with gapped
Goldstones whose gap is exactly calculable in terms of the symmetry algebra. We
confirm this result as well as previous ones concerning gapless Goldstones for
non-relativistic systems via a coset construction of the low-energy effective
field theory. Moreover, our analysis unveils additional gapped Goldstones,
naturally as light as the others, but this time with a model-dependent gap.
Their exact number cannot be inferred solely from the symmetry breaking pattern
either, but rather depends on the details of the symmetry breaking mechanism--a
statement that we explicitly verify with a number of examples. Along the way we
provide what we believe to be a particularly transparent interpretation of the
so-called inverse-Higgs constraints for spontaneously broken spacetime
symmetries.Comment: 50 pages. v2: Fixed several typos in equations. Minor modifications
  to the counting rule. Acknowledgements and references added. Matches JHEP
  versio
Dualities Near the Horizon

In 4-dimensional supergravity theories, covariant under symplectic
electric-magnetic duality rotations, a significant role is played by the
symplectic matrix M({\phi}), related to the coupling of scalars {\phi} to
vector field-strengths. In particular, this matrix enters the twisted
self-duality condition for 2-form field strengths in the symplectic formulation
of generalized Maxwell equations in the presence of scalar fields. In this
investigation, we compute several properties of this matrix in relation to the
attractor mechanism of extremal (asymptotically flat) black holes. At the
attractor points with no flat directions (as in the N = 2 BPS case), this
matrix enjoys a universal form in terms of the dyonic charge vector Q and the
invariants of the corresponding symplectic representation RQ of the duality
group G, whenever the scalar manifold is a symmetric space with G simple and
non-degenerate of type E7. At attractors with flat directions, M still depends
on flat directions, but not MQ, defining the so-called Freudenthal dual of Q
itself. This allows for a universal expression of the symplectic vector field
strengths in terms of Q, in the near-horizon Bertotti-Robinson black hole
geometry.Comment: 1+31 pages, 1 Table; v2 : completely reorganized (and shortened)
  structure, some Sections removed; various clarifications, formulae, and Refs.
  added; to appear on JHE
Complete Decoupling Limit of Ghost-free Massive Gravity

We present the complete form of the decoupling limit of ghost-free massive
gravity with a Minkowski reference metric, including the full interactions of
the helicity-1 and helicity-0 modes of the massive spin-2 field. While in the
metric language the square root structure of the mass terms makes it difficult
to find a simple way to write down the interactions, we show that using the
vierbein formulation of massive gravity, including Stueckelberg fields for both
diffeomorphism and local Lorentz symmetries, we can find an explicitly resummed
expression for the helicity-1 field interactions. We clarify the equations of
motion for the Lorentz Stueckelberg fields and how these generate the symmetric
vierbein condition which guarantees equivalence between the vierbein and metric
formulations of massive gravity.Comment: 20 pages, typos corrected, references adde