pinecone/core-2020-05-10-deduplication huggingface dataset:
Energy positivity, non-renormalization, and holomorphy in Lorentz-violating supersymmetric theories

This paper shows that the positive-energy and non-renormalization theorems of traditional supersymmetry survive the addition of Lorentz violating interactions. The Lorentz-violating coupling constants in theories using the construction of Berger and Kostelecky must obey certain constraints in order to preserve the positive energy theorem. Seiberg’s holomorphic arguments are used to prove that the superpotential remains non-renormalized (perturbatively) in the presence of Lorentz-violating interactions of the Berger-Kostelecky type. We briefly comment on Lorentz-violating theories of the type constructed by Nibbelink and Pospelov to note that holomorphy arguments offer elegant proofs of many non-renormalization results, some known by other arguments, some new
Data Driven Search in the Displaced $b\bar{b}$ Pair Channel for a Higgs
  Boson Decaying to Long-Lived Neutral Particles

This article presents a proposal for a new search channel for the Higgs boson
decaying to two long-lived neutral particles, each of which decays to $b\bar b$
at a displaced vertex. The decay length considered is such that the decay takes
place within the LHC beampipe. We present a new data-driven analysis using jet
substructure and properties of the tracks from the highly-displaced vertices.
  We consider a model with a 125 GeV Higgs boson with a significant branching
fraction to decay via this mode, with the long-lived neutral particle having a
mass in the range of 15--40 GeV and a decay length commensurate with the beam
pipe radius.
  Such a signal can be readily observed with an integrated luminosity of 19.5
fb$^{-1}$ at 8TeV at the LHC.Comment: 16 pages, 8 figures, Submitted to JHE
Color/kinematics duality for general abelian orbifolds of N=4 super
  Yang-Mills theory

To explore color/kinematics duality for general representations of the gauge
group we formulate the duality for general abelian orbifolds of the SU(N), N=4
super Yang-Mills theory in four dimensions, which have fields in the
bi-fundamental representation, and use it to construct explicitly complete
four-vector and four-scalar amplitudes at one loop. For fixed number of
supercharges, graph-organized L-loop n-point integrands of all orbifold
theories are given in terms of a fixed set of polynomials labeled by L
representations of the orbifold group. In contrast to the standard
duality-satisfying presentation of amplitudes of the N=4 super Yang-Mills
theory, each graph may appear several times with different internal states. The
color and R-charge flow provide a way to deform the amplitudes of orbifold
theories to those of more general quiver gauge theories which do not
necessarily exhibit color/kinematics duality on their own. Based on the
organization of amplitudes required by the duality between color and kinematics
in orbifold theories we show how the amplitudes of certain non-factorized
matter-coupled supergravity theories can be found through a double-copy
construction. We also carry out a comprehensive search for theories with fields
solely in the adjoint representation of the gauge group and amplitudes
exhibiting color/kinematics duality for all external states and find an
interesting relation between supersymmetry and existence of the duality.Comment: 51 pages, 7 figures, PDFLaTex, typos fixed, minor changes in section
  3.
Constraining type II 2HDM in light of LHC Higgs searches

We study the implication of the LHC Higgs search results on the Type II Two Higgs-Doublet Model. In particular, we explore the scenarios in which the observed 126 GeV Higgs signal is interpreted as either the light CP-even Higgs h 0 or the heavy CP-even Higgs H 0 . Imposing both theoretical and experimental constraints, we analyze the surviving parameter regions in m H ( m h ), m A , m H ±, tan β and sin( β  −  α ). We further identify the regions that could accommodate a 126 GeV Higgs with cross sections consistent with the observed Higgs signal. We find that in the h 0 -126 case, we are restricted to narrow regions of sin( β  −  α ) ≈ ±1 with tan β up to 4, or an extended region with 0 . 55  <  sin( β  −  α )  <  0 . 9 and 1 . 5  <  tan β <  4. The values of m H , m A and m H ±, however, are relatively unconstrained. In the H 0 -126 case, we are restricted to a narrow region of sin( β  −  α ) ~ 0 with tan β up to about 8, or an extended region of sin( β  −  α ) between −0 . 8 to −0 . 05, with tan β extended to 30 or higher. m A and m H  ± are nearly degenerate due to Δ ρ constraints. Imposing flavor constraints shrinks the surviving parameter space significantly for the H 0 -126 case, limiting tan β ≲ 10, but has little effect in the h 0 -126 case. We also investigate the correlation between γγ, V V and bb/ττ channels. γγ and V V channels are most likely to be highly correlated with γγ : V V  ~ 1 for the normalized cross sections
Two dimensional renormalization group flows in next to leading order

Zamolodchikov’s famous analysis of the RG trajectory connecting successive minimal CFT models M p and M p −1 for p ≫ 1, is improved by including second order in coupling constant corrections. This allows to compute IR quantities with next to leading order accuracy of the 1 /p expansion. We compute in particular, the beta function and the anomalous dimensions for certain classes of fields. As a result we are able to identify with a greater accuracy the IR limit of these fields with certain linear combination of the IR theory M p −1 . We discuss the relation of these results with Gaiotto’s recent RG domain wall proposal
Quantum Decoherence with Holography

Quantum decoherence is the loss of a system's purity due to its interaction
with the surrounding environment. Via the AdS/CFT correspondence, we study how
a system decoheres when its environment is a strongly-coupled theory. In the
Feynman-Vernon formalism, we compute the influence functional holographically
by relating it to the generating function of Schwinger-Keldysh propagators and
thereby obtain the dynamics of the system's density matrix.
  We present two exactly solvable examples: (1) a straight string in a BTZ
black hole and (2) a scalar probe in AdS$_5$. We prepare an initial state that
mimics Schr\"odinger's cat and identify different stages of its decoherence
process using the time-scaling behaviors of R\'enyi entropy. We also relate
decoherence to local quantum quenches, and by comparing the time evolution
behaviors of the Wigner function and R\'enyi entropy we demonstrate that the
relaxation of local quantum excitations leads to the collapse of its
wave-function.Comment: 55 pages, 13 figures; v2 47 pages & 13 figs, minor revision to match
  published versio
M-theory and type IIB from a duality manifest action

We revisit the SL(5) U-duality manifest action constructed by Berman and Perry in an extended spacetime. Upon choosing a four-dimensional solution to the section condition constraint, the theory reduces to a four-dimensional truncation of eleven-dimensional supergravity. In this paper, we show that the theory contains more than this M-theory reduction. The section condition also admits an SL(5) inequivalent three-dimensional solution, upon which the action directly reduces to a three-dimensional truncation of type IIB supergravity. We also discuss the reduction to IIB ∗ supergravity
5D perspective on Higgs production at the boundary of a warped extra dimension

A comprehensive, five-dimensional calculation of Higgs-boson production in gluon fusion is performed for both the minimal and the custodially protected Randall-Sundrum (RS) model, with Standard Model fields propagating in the bulk and the scalar sector confined on or near the IR brane. For the first time, an exact expression for the gg → h amplitude in terms of the five-dimensional fermion propagator is derived, which includes the full dependence on the Higgs-boson mass. Various results in the literature are reconciled and shown to correspond to different incarnations of the RS model, in which the Higgs field is either localized on the IR brane or is described in terms of a narrow bulk state. The results in the two scenarios differ in a qualitative way: the gg → h amplitude is suppressed in models where the scalar sector is localized on the IR brane, while it tends to be enhanced in bulk Higgs models. In both cases, effects of higher-dimensional operators contributing to the gg → h amplitude at tree level are shown to be numerically suppressed under reasonable assumptions. There is no smooth cross-over between the two scenarios, since the effective field-theory description breaks down in the transition region. A detailed phenomenological analysis of Higgs production in various RS scenarios is presented, and for each scenario the regions of parameter space already excluded by LHC data are derived
Dual-conformal regularization of infrared loop divergences and the chiral box expansion

We revisit the familiar construction of one-loop scattering amplitudes via generalized unitarity in light of the recently understood properties of loop integrands prior to their integration. We show how in any four-dimensional quantum field theory, the integrand -level factorization of infrared divergences leads to twice as many constraints on integral coefficients than are visible from the integrated expressions. In the case of planar, maximally supersymmetric Yang-Mills amplitudes, we demonstrate that these constraints are both sufficient and necessary to imply the finiteness and dual-conformal invariance of the ratios of scattering amplitudes. We present a novel regularization of the scalar box integrals which makes dual-conformal invariance of finite observables manifest term by term, and describe how this procedure can be generalized to higher loop-orders. Finally, we describe how the familiar scalar boxes at one-loop can be upgraded to ‘chiral boxes’ resulting in a manifestly infrared-factorized, box-like expansion for all one-loop integrands in planar, N = 4 $$ \mathcal{N}=4 $$ super Yang-Mills. Accompanying this note is a Mathematica pack-age which implements our results, and allows for the efficient numerical evaluation of any one-loop amplitude or ratio function
Chiral 2D "Strange Metals" from N = 4 SYM

Familiar field theories may contain closed subsectors made out of only
fermions, which can be used to explore new and unusual phases of matter in
lower dimensions. We focus on the fermionic su(1,1) sector in N=4 SYM and on
its ground states, which are Fermi surface states/operators. By computing their
spectrum to order $(g_{YM}^2 N)^2$, we argue that fluctuations around this
fermi surface, within the sector and in the limit $k_F\rightarrow\infty$, are
governed by a chiral 1+1 dimensional sector of the "strange metal" coset
$SU(N)_N \otimes SU(N)_N/SU(N)_{2N}$. On the gravity side, the conjectured dual
configuration is an $S=0$ degeneration of a rotating black hole. On general
grounds we expect that the near horizon excitations of
$(S=0,\Omega=1,J\rightarrow\infty)$ degenerations of black holes will be
governed by a chiral sector of a 1+1 CFT.Comment: 44 page
Erratum to: Search for new physics in events with same-sign dileptons and jets in pp collisions at √s=8 TeV

A search for new physics is performed based on events with jets and a pair of isolated, same-sign leptons. The results are obtained using a sample of proton-proton collision data collected by the CMS experiment at a centre-of-mass energy of 8 TeV at the LHC, corresponding to an integrated luminosity of 19.5 fb-1. In order to be sensitive to a wide variety of possible signals beyond the standard model, multiple search regions defined by the missing transverse energy, the hadronic energy, the number of jets and b-quark jets, and the transverse momenta of the leptons in the events are considered. No excess above the standard model background expectation is observed and constraints are set on a number of models for new physics, as well as on the same-sign top-quark pair and quadruple-top-quark production cross sections. Information on event selection efficiencies is also provided, so that the results can be used to confront an even broader class of new physics models.The Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authorit
De Sitter vacua from a D-term generated racetrack uplift

We propose an uplift mechanism using a structure of multi-Kähler moduli dependence in the F-term potential of type IIB string theory compactifications. This mechanism requires a D-term condition that fixes one modulus to be proportional to another modulus, resulting in a trivial D-term potential. De Sitter minima are realized along with an enhancement of the volume in the Large Volume Scenario and no additional suppression of the uplift term such as warping is required. We further show the possibility to realize the uplift mechanism in the presence of more Kähler moduli such that we expect the uplift mechanism to work in many other compactifications
Asymptotically hyperbolic black holes in Horava gravity

Solutions of Horava gravity that are asymptotically Lifshitz are explored.
General near boundary expansions allow the calculation of the mass of these
spacetimes via a Hamiltonian method. Both analytic and numeric solutions are
studied which exhibit a causal boundary called the universal horizon, and are
therefore black holes of the theory. The thermodynamics of an asymptotically
Anti-de Sitter Horava black hole are verified.Comment: 30 pages, 8 figures; Version 2 fixes negative signs and adds a
  condensed introductio
A unified thermodynamic picture of Ho\v{r}ava-Lifshitz black hole in
  arbitrary space time

In this paper, we analyze the complete thermodynamic and phase transition
phenomena of a black hole solution in Ho\v{r}ava-Lifshitz gravity in arbitrary
space time. Nature of phase transition is studied using geometrothermodynamic
and Ehrenfest's scheme of standard thermodynamics. We analytically check the
Ehrenfest's equations near the critical point, which is the point of divergence
in the heat capacity. Our analysis revels that this black hole exhibits a
second order phase transition.Comment: 15 pages, 9 figures, To appear in JHE
Symmetry breaking patterns in 3HDM

An attractive feature of New Physics models with multiple Higgs fields is that they are equipped with discrete symmetry groups in the Higgs and flavour sectors. These symmetry groups are often broken at the global minimum of the Higgs potential, either completely or to a proper subgroup, with certain phenomenological consequences. Here, we systematically explore these symmetry breaking patterns in the scalar sector of the three-Higgs-doublet model (3HDM). We use the full list of discrete symmetry groups allowed in 3HDM, and for each group we find all possible ways it can break by the Higgs vacuum expectation value alignment. We also discuss the interplay between these symmetry groups and various forms of CP -violation in the scalar sector of 3HDM. Not only do our results solve the problem for 3HDM, but they also hint at several general features in multi-scalar sectors
On Statistical Aspects of Qjets

The process by which jet algorithms construct jets and subjets is inherently
ambiguous and equally well motivated algorithms often return very different
answers. The Qjets procedure was introduced by the authors to account for this
ambiguity by considering many reconstructions of a jet at once, allowing one to
assign a weight to each interpretation of the jet. Employing these weighted
interpretations leads to an improvement in the statistical stability of many
measurements. Here we explore in detail the statistical properties of these
sets of weighted measurements and demonstrate how they can be used to improve
the reach of jet-based studies.Comment: 29 pages, 6 figures. References added, minor modification of the
  text. This version to appear in JHE
Adjoint BFKL at finite coupling: a short-cut from the collinear limit

In the high energy Regge limit, the six gluons scattering amplitude is
controlled by the adjoint BFKL eigenvalue and impact factor. In this paper we
determine these two building blocks at any value of the 't Hooft coupling in
planar $\cal{N}$=4 SYM theory. This is achieved by means of analytic
continuations from the collinear limit, where similar all loops expressions
were recently established. We check our predictions against all available data
at weak and strong coupling.Comment: 30 pages plus appendices, 12 figures. References added; published
  versio
Complexified boost invariance and holographic heavy ion collisions

At strong coupling holographic studies have shown that heavy ion collisions do not obey normal boost invariance. Here we study a modified boost invariance through a complex shift in time, and show that this leads to surprisingly good agreement with numerical holographic computations. When including perturbations the agreement becomes even better, both in the hydrodynamic and the far-from-equilibrium regime. One of the main advantages is an analytic formulation of the stress-energy tensor of the longitudinal dynamics of holographic heavy ion collisions
Higgsino dark matter in high-scale supersymmetry

We study a supersymmetric (SUSY) Standard Model in which a Higgsino is light enough to be dark matter, while the other SUSY particles are much heavier than the weak scale. We carefully treat the effects of heavy SUSY particles to the Higgsino nature, especially taking into account the renormalization effects due to the large hierarchy between the Higgsino and the SUSY breaking scales. Inelastic scattering of the Higgsino dark matter with a nucleus is studied, and the constraints on the scattering by the direct detection experiments are discussed. This gives an upper limit on the new physics scale. Bounds on the dark matter-nucleon elastic scattering, the electric dipole moments, and direct production of Higgsinos, on the other hand, give a lower limit. We show the current status on the limits and discuss the future prospects
Seiberg-Witten curves and double-elliptic integrable systems

An old conjecture claims that commuting Hamiltonians of the double-elliptic integrable system are constructed from the theta-functions associated with Riemann surfaces from the Seiberg-Witten family, with moduli treated as dynamical variables and the Seiberg-Witten differential providing the pre-symplectic structure. We describe a number of theta-constant equations needed to prove this conjecture for the N -particle system. These equations provide an alternative method to derive the Seiberg-Witten prepotential and we illustrate this by calculating the perturbative contribution. We provide evidence that the solutions to the commutativity equations are exhausted by the double-elliptic system and its degenerations (Calogero and Ruijsenaars systems). Further, the theta-function identities that lie behind the Poisson commutativity of the three-particle Hamiltonians are proven
Momentum dissipation and effective theories of coherent and incoherent transport

We study heat transport in two systems without momentum conservation: a hydrodynamic system, and a holographic system with spatially dependent, massless scalar fields. When momentum dissipates slowly, there is a well-defined, coherent collective excitation in the AC heat conductivity, and a crossover between sound-like and diffusive transport at small and large distance scales. When momentum dissipates quickly, there is no such excitation in the incoherent AC heat conductivity, and diffusion dominates at all distance scales. For a critical value of the momentum dissipation rate, we compute exact expressions for the Green’s functions of our holographic system due to an emergent gravitational self-duality, similar to electric/magnetic duality, and SL(2, ℝ $$ \mathrm{\mathbb{R}} $$ ) symmetries. We extend the coherent/incoherent classification to examples of charge transport in other holographic systems: probe brane theories and neutral theories with non-Maxwell actions
Interacting spin-2 fields in three dimensions

Using the frame formulation of multi-gravity in three dimensions, we show that demanding the presence of secondary constraints which remove the Boulware-Deser ghosts restricts the possible interaction terms of the theory and identifies invertible frame field combinations whose effective metric may consistently couple to matter. The resulting ghost-free theories can be represented by theory graphs which are trees. In the case of three frame fields, we explicitly show that the requirement of positive masses and energies for the bulk spin-2 modes in AdS 3 is consistent with a positive central charge for the putative dual CFT 2
Wino-like Minimal Dark Matter and future colliders

We extend the Standard Model with an EW fermion triplet, stable thanks to one
of the accidental symmetries already present in the theory. On top of being a
potential Dark Matter candidate, additional motivations for this new state are
the stability of the vacuum, the fact it does not introduce a large fine-tuning
in the Higgs mass, and that it helps with gauge coupling unification. We
perform an analysis of the reach for such a particle at the high-luminosity
LHC, and at a futuristic 100 TeV pp collider. We do so for the monojet,
monophoton, vector boson fusion and disappearing tracks channels. At 100 TeV,
disappearing tracks will likely probe the mass region of 3 TeV, relevant for
thermally produced Dark Matter. The reach of the other channels is found to
extend up to ~ 1.3 (1.7) TeV for 3 (30) ab^-1 of integrated luminosity,
provided systematics are well under control. This model also constitutes a
benchmark of a typical WIMP Dark Matter candidate, and its phenomenology
reproduces that of various models of Supersymmetry featuring a pure Wino as the
lightest sparticle.Comment: 28 pages, 10 figures, 4 tables. v2: matches JHEP versio
3D field theories with Chern-Simons term for large N in the Weyl gauge

Three dimensional, U( N ) symmetric, field theory with fermion matter coupled to a topological Chern-Simons term, in the large N limit is analyzed in details. We determine the conditions for the existence of a massless conformal invariant ground state as well as the conditions for a massive phase. We analyze the phase structure and calculate gauge invariant corelators comparing them in several cases to existing results. In addition to the non-critical explicitly broken scale invariance massive case we consider also a massive ground state where the scale symmetry is spontaneously broken. We show that such a phase appears only in the presence of a marginal deformation that is introduced by adding a certain scalar auxiliary field and discuss the fermion-boson dual mapping. The ground state contains in this case a massless U( N ) singlet bound state goldstone boson- the dilaton whose properties are determined. We employ here the temporal gauge which is at variance with respect to past calculations using the light-cone gauge and thus, a check (though limited) of gauge independence is at hand. The large N properties are determined by using a field integral formalism and the steepest descent method. The saddle point equations, which take here the form of integral equations for non-local fields, determine the mass gap and the dressed fermion propagator. Vertex functions are calculated at leading order in 1 /N as exact solutions of integral equations. From the vertex functions, we infer gauge invariant two-point correlation functions for scalar operators and a current. Indications about the consistency of the method are obtained by verifying that gauge-invariant quantities have a natural O (3) covariant form. As a further verification, in several occasions, a few terms of the perturbative expansion are calculated and compared with the exact results in the appropriate order