pinecone/core-2020-05-10-deduplication huggingface dataset:
LHC Signals from Cascade Decays of Warped Vector Resonances

Recently (arXiv:1608.00526), a new framework for warped higher-dimensional
compactifications with "bulk" standard model (SM) was proposed: in addition to
the UV (Planck scale) and IR (a couple of TeV) branes, there is an intermediate
brane, taken to be around 10 TeV. The SM matter and Higgs fields propagate from
the UV brane down to this intermediate brane only, while gauge and gravity
fields propagate in the entire bulk. Such a configuration renders the lightest
gauge Kaluza-Klein (KK) states within LHC reach, simultaneously satisfying
flavor and CP constraints. In addition, the usual leading decay modes of the
lightest KK gauge bosons into top and Higgs bosons are suppressed. This effect
permits erstwhile subdominant channels to become significant. These include
flavor-universal decays to SM fermions and Higgs bosons, and a novel channel -
decay to a radion and a SM gauge boson, followed by radion decay to a pair of
SM gauge bosons. In this work, we first delineate the parameter space where the
above mentioned cascade decay of gauge KK particles dominates, and thereby can
be the discovery mode at the LHC. We then perform a detailed analysis of the
LHC signals from this model, finding that 300/fb suffices for evidence of
KK-gluon in tri-jet, jet + di-photon and jet + di-boson channels. However, KK
photon in photon + di-jet, and KK-W in leptonic W + di-jet require 3000/fb. The
crucial feature of this decay chain is a "double" resonance, i.e. 3-particle
and 2-particle invariant mass peaks, corresponding to the KK gauge boson and
the radion respectively.Comment: 50 page
Microstates of black holes in expanding universe from interacting branes

Thermodynamics of the near extremal black p-branes can be described by
collective motions of gravitationally interacting branes. This proposal is
called the p-soup model. In this paper, we check this proposal in the case of
black brane system which is asymptotically Friedmann-Lemaitre-Robertson-Walker
universe in an infinite distance. As a result, we can show that the
gravitationally interacting branes explain free energy, entropy, temperature
and other physical quantities in these systems. This implies that the
microstates of this kind of brane system can be also understood in the p-soup
model.Comment: 18 page
Mixed-symmetry fields in de Sitter space: a group theoretical glance

We derive the characters of all unitary irreducible representations of the
(d+1)-dimensional de Sitter spacetime isometry algebra so(1, d+1), and propose
a dictionary between those representations and massive or (partially) massless
fields on de Sitter spacetime. We propose a way of taking the flat limit of
representations in (anti-) de Sitter spaces in terms of these characters, and
conjecture the spectrum resulting from taking the flat limit of mixed-symmetry
fields in de Sitter spacetime. We identify the equivalent of the scalar
singleton for the de Sitter (dS) spacetime.Comment: 40 pages, 4 figures; v2: typos corrected, flat limit of the
  complementary series refined and references added; v3: typos correcte
Little String Origin of Surface Defects

We derive the codimension-two defects of 4d $\mathcal{N} = 4$ Super
Yang-Mills (SYM) theory from the (2, 0) little string. The origin of the little
string is type IIB theory compactified on an ADE singularity. The defects are
D-branes wrapping the 2-cycles of the singularity. We use this construction to
make contact with the description of SYM defects due to Gukov and Witten
[arXiv:hep-th/0612073]. Furthermore, we derive from a geometric perspective the
complete nilpotent orbit classification of codimension-two defects, and the
connection to ADE-type Toda CFT. The only data needed to specify the defects is
a set of weights of the algebra obeying certain constraints, which we give
explicitly. We highlight the differences between the defect classification in
the little string theory and its (2, 0) CFT limit.Comment: 64 pages, 18 figures. v2: Minor fixes and clarification
Dark sectors and enhanced $h\to \tau \mu$ transitions

LHC searches with $\tau$ leptons in the final state are always inclusive in
missing-energy sources. A signal in the flavor-violating Higgs decay search,
$h\to\tau\mu$, could therefore equally well be due to a flavor conserving
decay, but with an extended decay topology with additional invisible particles.
We demonstrate this with the three-body decay $h\to\tau\mu\varphi$, where
$\varphi$ is a flavorful mediator decaying to a dark-sector. This scenario can
give thermal relic dark matter that carries lepton flavor charges, a realistic
structure of the charged lepton masses, and explain the anomalous magnetic
moment of the muon, $(g-2)\mu$, while simultaneously obey all indirect
constraints from flavor-changing neutral currents. Another potentially
observable consequence is the broadening of the collinear mass distributions in
the $h\to \tau\mu$ searches.Comment: 22 pages, 5 figure
Understanding forward $B$ hadron production

The LHCb collaboration has recently performed a measurement of the production
rate of inclusive $B$ hadron production ($pp\to BX$) at both 7 and 13~TeV
centre-of-mass (CoM) energies. As part of this measurement, the ratio of these
two cross section measurements has been presented differentially in $B$ hadron
pseudorapidity within the range of $\eta_B \in [2.0,5.0]$. A large tension
($4\sigma$) is observed for the ratio measurement in the lower pseudorapidity
range of $\eta_B \in [2.0,3.0]$, where the data is observed to exceed
theoretical predictions, while consistency is found at larger $\eta_B$ values.
This behaviour is not expected within perturbative QCD, and can only be
achieved by introducing ad-hoc features into the structure of the
non-perturbative gluon PDF within the region of $x\in[10^{-3},10^{-4}]$.
Specifically, the gluon PDF must grow extremely quickly with decreasing $x$
within this kinematic range, closely followed by a period of decelerated
growth. However, such behaviour is highly disfavoured by global fits to proton
structure. Further studies of the available LHCb $B$ and $D$ hadron cross
section data, available for a range of CoM energies, indicate systematic
tension in the (pseudo)rapidity region of $[2.0,2.5]$.Comment: 31 page
Finite remainders of the Konishi at two loops in ${\cal N}=4$ SYM

We present three point form factors (FF) in ${\cal N}=4$ Super Yang Mills
theory for both the half-BPS and the Konishi operators at two loop level in the
`t Hooft coupling using Feynman diagrammatic approach. We have chosen on shell
final states consisting of $g \phi \phi$ and $\phi \lambda \lambda$, where
$\phi,\lambda, g$ are scalar, Majorana fermion and gauge fields respectively.
The computation is done both in the modified dimensional reduction as well as
in the four dimensional helicity scheme. We have studied the universal
structure of infrared (IR) singularities in these FFs using Catani's IR
subtraction operators. Exploiting the factorisation property of the IR
singularities and following BDS like ansatz for the IR sensitive terms in FFs,
we determine the finite remainders of them. We find that the finite remainders
of FFs of the half-BPS for both the choices of final states give not only
identical results but also contain terms of uniform transcendentality of weight
two and four at one and two loop levels, respectively. In the case of the
Konishi operator, the finite remainders depend on the external states and do
not exhibit uniform transcendentality. However, surprisingly, the leading
transcendental terms for $g \phi \phi$ agree with that of the half-BPS. We have
demonstrated the role of on shell external states for the FFs in the context of
maximum transcendentality principle.Comment: 37 page
Right-handed charged currents in the era of the Large Hadron Collider

We discuss the phenomenology of right-handed charged currents in the
framework of the Standard Model Effective Field Theory, in which they arise due
to a single gauge-invariant dimension-six operator. We study the manifestations
of the nine complex couplings of the $W$ to right-handed quarks in collider
physics, flavor physics, and low-energy precision measurements. We first obtain
constraints on the couplings under the assumption that the right-handed
operator is the dominant correction to the Standard Model at observable
energies. We subsequently study the impact of degeneracies with other
Beyond-the-Standard-Model effective interactions and identify observables, both
at colliders and low-energy experiments, that would uniquely point to
right-handed charged currents.Comment: 50 pages plus appendices and reference
Quantum Geometry of Resurgent Perturbative/Nonperturbative Relations

For a wide variety of quantum potentials, including the textbook `instanton'
examples of the periodic cosine and symmetric double-well potentials, the
perturbative data coming from fluctuations about the vacuum saddle encodes all
non-perturbative data in all higher non-perturbative sectors. Here we unify
these examples in geometric terms, arguing that the all-orders quantum action
determines the all-orders quantum dual action for quantum spectral problems
associated with a classical genus one elliptic curve. Furthermore, for a
special class of genus one potentials this relation is particularly simple:
this class includes the cubic oscillator, symmetric double-well, symmetric
degenerate triple-well, and periodic cosine potential. These are related to the
Chebyshev potentials, which are in turn related to certain ${\mathcal N}=2$
supersymmetric quantum field theories, to mirror maps for hypersurfaces in
projective spaces, and also to topological $c=3$ Landau-Ginzburg models and
`special geometry'. These systems inherit a natural modular structure
corresponding to Ramanujan's theory of elliptic functions in alternative bases,
which is especially important for the quantization. Insights from
supersymmetric quantum field theory suggest similar structures for more
complicated potentials, corresponding to higher genus. Our approach is very
elementary, using basic classical geometry combined with all-orders WKB.Comment: 50 pages, 3 figure
Resummation Improved Rapidity Spectrum for Gluon Fusion Higgs Production

Gluon-induced processes such as Higgs production typically exhibit large
perturbative corrections. These partially arise from large virtual corrections
to the gluon form factor, which at timelike momentum transfer contains Sudakov
logarithms evaluated at negative arguments $\ln^2(-1) = -\pi^2$. It has been
observed that resumming these terms in the timelike form factor leads to a much
improved perturbative convergence for the total cross section. We discuss how
to consistently incorporate the resummed form factor into the perturbative
predictions for generic cross sections differential in the Born kinematics,
including in particular the Higgs rapidity spectrum. We verify that this indeed
improves the perturbative convergence, leading to smaller and more reliable
perturbative uncertainties, and that this is not affected by cancellations
between resummed and unresummed contributions. Combining both fixed-order and
resummation uncertainties, the perturbative uncertainty for the total cross
section at N$^3$LO$+$N$^3$LL$^\prime_\varphi$ is about a factor of two smaller
than at N$^3$LO. The perturbative uncertainty of the rapidity spectrum at
NNLO$+$NNLL$^\prime_\varphi$ is similarly reduced compared to NNLO. We also
study the analogous resummation for quark-induced processes, namely Higgs
production through bottom quark annihilation and the Drell-Yan rapidity
spectrum. For the former the resummation leads to a small improvement, while
for the latter it confirms the already small uncertainties of the fixed-order
predictions.Comment: 30 pages + 17 pages in Appendices, 10 figures; v2: journal version;
  references added, discussed individual partonic channels for Drell-Ya
Resonance-improved parton-shower matching for the Drell-Yan process
  including electroweak corrections

We use the POWHEG method to perform parton-shower matching for Drell-Yan
production of W and Z bosons at the LHC at NLO QCD and NLO electroweak
accuracy. In particular, we investigate an improved treatment of the
vector-boson resonances within the POWHEG method. We employ an independent
implementation of the POWHEG method and compare to earlier results within the
POWHEGBOX. On the technical side, we provide the FKS formalism for
photon-radiation off fermions within mass regularization.Comment: 29 pages, 6 figures, extended discussions; version published in JHE
Theta, Time Reversal, and Temperature

$SU(N)$ gauge theory is time reversal invariant at $\theta=0$ and
$\theta=\pi$. We show that at $\theta=\pi$ there is a discrete 't Hooft anomaly
involving time reversal and the center symmetry. This anomaly leads to
constraints on the vacua of the theory. It follows that at $\theta=\pi$ the
vacuum cannot be a trivial non-degenerate gapped state. (By contrast, the
vacuum at $\theta=0$ is gapped, non-degenerate, and trivial.) Due to the
anomaly, the theory admits nontrivial domain walls supporting lower-dimensional
theories. Depending on the nature of the vacuum at $\theta=\pi$, several phase
diagrams are possible. Assuming area law for space-like loops, one arrives at
an inequality involving the temperatures at which CP and the center symmetry
are restored. We also analyze alternative scenarios for $SU(2)$ gauge theory.
The underlying symmetry at $\theta=\pi$ is the dihedral group of 8 elements. If
deconfined loops are allowed, one can have two $O(2)$-symmetric fixed points.
It may also be that the four-dimensional theory around $\theta=\pi$ is gapless,
e.g. a Coulomb phase could match the underlying anomalies.Comment: 62 pages, 9 figures, important typos fixed, added comment
The Bulk Dual of SYK: Cubic Couplings

The SYK model, a quantum mechanical model of $N \gg 1$ Majorana fermions
$\chi_i$, with a $q$-body, random interaction, is a novel realization of
holography. It is known that the AdS$_2$ dual contains a tower of massive
particles, yet there is at present no proposal for the bulk theory. As SYK is
solvable in the $1/N$ expansion, one can systematically derive the bulk. We
initiate such a program, by analyzing the fermion two, four and six-point
functions, from which we extract the tower of singlet, large $N$ dominant,
operators, their dimensions, and their three-point correlation functions. These
determine the masses of the bulk fields and their cubic couplings. We present
these couplings, analyze their structure and discuss the simplifications that
arise for large $q$.Comment: 39 pages, v2: Evaluation of integral in Sec. 3.3.2 correcte
Renormalization group fixed points of foliated gravity-matter systems

We employ the Arnowitt-Deser-Misner formalism to study the renormalization
group flow of gravity minimally coupled to an arbitrary number of scalar,
vector, and Dirac fields. The decomposition of the gravitational degrees of
freedom into a lapse function, shift vector, and spatial metric equips
spacetime with a preferred (Euclidean) "time"-direction. In this work, we
provide a detailed derivation of the renormalization group flow of Newton's
constant and the cosmological constant on a flat Friedmann-Robertson-Walker
background. Adding matter fields, it is shown that their contribution to the
flow is the same as in the covariant formulation and can be captured by two
parameters $d_g$, $d_\lambda$. We classify the resulting fixed point structure
as a function of these parameters finding that the existence of non-Gaussian
renormalization group fixed points is rather generic. In particular the matter
content of the standard model and its most common extensions gives rise to one
non-Gaussian fixed point with real critical exponents suitable for Asymptotic
Safety. Moreover, we find non-Gaussian fixed points for any number of scalar
matter fields, making the scenario attractive for cosmological model building.Comment: 42 pages, 6 figure
On the black hole interior in string theoy

The potential behind the horizon of an eternal black hole in classical
theories is described in terms of data that is available to an external
observer -- the reflection coefficient of a wave that scatters on the black
hole. In GR and perturbative string theory (in $\alpha'$), the potential is
regular at the horizon and it blows up at the singularity. The exact reflection
coefficient, that is known for the $SL(2,\mathbb{R})_k/U(1)$ black hole and
includes non-perturbative $\alpha'$ effects, seems however to imply that there
is a highly non-trivial structure just behind the horizon
Notes on the Wess-Zumino-Witten-like structure: $L_{\infty }$ triplet
  and NS-NS superstring field theory

In the NS-NS sector of superstring field theory, there potentially exist
three nilpotent generators of gauge transformations and two constraint
equations: It makes the gauge algebra of type II theory somewhat complicated.
In this paper, we show that every NS-NS actions have their WZW-like forms, and
that a triplet of mutually commutative $L_{\infty }$ products completely
determines the gauge structure of NS-NS superstring field theory via its
WZW-like structure. We give detailed analysis about it and present its
characteristic properties by focusing on two NS-NS actions proposed by
arXiv:1512.03379 and arXiv:1403.0940.Comment: 23+3 pages; Published ve
Dimension-6 Operator Analysis of the CLIC Sensitivity to New Physics

We estimate the possible accuracies of measurements at the proposed CLIC
$e^+e^-$ collider of Higgs and $W^+W^-$ production at centre-of-mass energies
up to 3TeV, incorporating also Higgsstrahlung projections at higher energies
that had not been considered previously, and use them to explore the
prospective CLIC sensitivities to decoupled new physics. We present the
resulting constraints on the Wilson coefficients of dimension-6 operators in a
model-independent approach based on the Standard Model effective field theory
(SM EFT). The higher centre-of-mass energy of CLIC, compared to other projects
such as the ILC and CEPC, gives it greater sensitivity to the coefficients of
some of the operators we study. We find that CLIC Higgs measurements may be
sensitive to new physics scales $\Lambda = \mathcal{O}(10)$TeV for individual
operators, reduced to $\mathcal{O}(1)$ TeV sensitivity for a global fit
marginalising over the coefficients of all contributing operators. We give some
examples of the corresponding prospective constraints on specific scenarios for
physics beyond the SM, including stop quarks and the dilaton/radion.Comment: 20 pages, 6 figure
High Energy QCD at NLO: from light-cone wave function to JIMWLK
  evolution

Soft components of the light cone wave-function of a fast moving projectile
hadron is computed in perturbation theory to third order in QCD coupling
constant. At this order, the Fock space of the soft modes consists of
one-gluon, two-gluon, and a quark-antiquark states. The hard component of the
wave-function acts as a non-Abelian background field for the soft modes and is
represented by a valence charge distribution that accounts for non-linear
density effects in the projectile. When scattered off a dense target, the
diagonal element of the S-matrix reveals the Hamiltonian of high energy
evolution, the JIMWLK Hamiltonian. This way we provide a new direct derivation
of the JIMWLK Hamiltonian at the Next-to-Leading Order.Comment: 83 pages, 15 figures; explanatory comments added, published versio
Currents and Radiation from the large $D$ Black Hole Membrane

It has recently been demonstrated that black hole dynamics in a large number
of dimensions $D$ reduces to the dynamics of a codimension one membrane
propagating in flat space. In this paper we define a stress tensor and charge
current on this membrane and explicitly determine these currents at low orders
in the expansion in $\frac{1}{D}$. We demonstrate that dynamical membrane
equations of motion derived in earlier work are simply conservation equations
for our stress tensor and charge current. Through the paper we focus on
solutions of the membrane equations which vary on a time scale of order unity.
Even though the charge current and stress tensor are not parametrically small
in such solutions, we show that the radiation sourced by the corresponding
membrane currents is generically of order $\frac{1}{D^D}$. In this regime it
follows that the `near horizon' membrane degrees of freedom are decoupled from
asymptotic flat space at every perturbative order in the $\frac{1}{D}$
expansion. We also define an entropy current on the membrane and use the
Hawking area theorem to demonstrate that the divergence of the entropy current
is point wise non negative. We view this result as a local form of the second
law of thermodynamics for membrane motion.Comment: 104 pages plus 69 pages appendix, 1 figure, Minor correction
Fundamental Vortices, Wall-Crossing, and Particle-Vortex Duality

We explore 1d vortex dynamics of 3d supersymmetric Yang-Mills theories, as
inferred from factorization of exact partition functions. Under Seiberg-like
dualities, the 3d partition function must remain invariant, yet it is not a
priori clear what should happen to the vortex dynamics. We observe that the 1d
quivers for the vortices remain the same, and the net effect of the 3d duality
map manifests as 1d Wall-Crossing phenomenon; Although the vortex number can
shift along such duality maps, the ranks of the 1d quiver theory are
unaffected, leading to a notion of fundamental vortices as basic building
blocks for topological sectors. For Aharony-type duality, in particular, where
one must supply extra chiral fields to couple with monopole operators on the
dual side, 1d wall-crossings of an infinite number of vortex quiver theories
are neatly and collectively encoded by 3d determinant of such extra chiral
fields. As such, 1d wall-crossing of the vortex theory encodes the
particle-vortex duality embedded in the 3d Seiberg-like duality. For $\mathcal
N = 4$, the D-brane picture is used to motivate this 3d/1d connection, while,
for $\mathcal N = 2$, this 3d/1d connection is used to fine-tune otherwise
ambiguous vortex dynamics. We also prove some identities of 3d supersymmetric
partition functions for the Aharony duality using this vortex wall-crossing
interpretation.Comment: 75 pages, 24 figures; v2: a reference added, published versio
Three-family left-right symmetry with low-scale seesaw mechanism

We suggest a new left-right symmetric model implementing a low-scale seesaw
mechanism in which quantum consistency requires three families of fermions. The
symmetry breaking route to the Standard Model determines the profile of the
"next" expected new physics, characterized either by the simplest left-right
gauge symmetry or by the 3-3-1 scenario. The resulting $Z^\prime$ gauge bosons
can be probed at the LHC and provide a production portal for the right-handed
neutrinos. On the other hand, its flavor changing interactions would affect the
K, D and B neutral meson systems.Comment: 10 pages, 2 figures. Revised version as accepted by JHE
Bound states of spinning black holes in five dimensions

We find and study supergravity BPS bound states of five-dimensional spinning
black holes in asymptotically flat spacetime. These solutions follow from
multi-string solutions in six-dimensional minimal supergravity and can be
uplifted to F-theory or M-theory. We analyze the regularity conditions and work
out the example of a bound state of two black holes in detail. The bound state
is supported by fluxes through nontrivial topologies exterior to the horizons
and KK momentum. Furthermore, we determine the entropy and compare with other
macroscopic BPS solutions.Comment: 31 pages, 4 figures; typos corrected, minor changes in section 2.