pinecone/core-2020-05-10-deduplication huggingface dataset:
Measurement of event background fluctuations for charged particle jet reconstruction in Pb-Pb collisions at sqrt(sNN)=2.76 TeV

The effect of event background fluctuations on charged particle jet reconstruction in Pb-Pb collisions at sqrt(sNN)=2.76 TeV has been measured with the ALICE experiment. The main sources of non-statistical fluctuations are characterized based purely on experimental data with an unbiased method, as well as by using single high pt particles and simulated jets embedded into real Pb-Pb events and reconstructed with the anti-kt jet finder. The influence of a low transverse momentum cut-off on particles used in the jet reconstruction is quantified by varying the minimum track pt between 0.15 GeV/c and 2 GeV/c. For embedded jets reconstructed from charged particles with pt  &gt; 0.15 GeV/c, the uncertainty in the reconstructed jet transverse momentum due to the heavy-ion background is measured to be 11.3 GeV/c (standard deviation) for the 10% most central Pb-Pb collisions, slightly larger than the value of 11.0 GeV/c measured using the unbiased method. For a higher particle transverse momentum threshold of 2 GeV/c, which will generate a stronger bias towards hard fragmentation in the jet finding process, the standard deviation of the fluctuations in the reconstructed jet transverse momentum is reduced to 4.8-5.0 GeV/c for the 10% most central events. A non-Gaussian tail of the momentum uncertainty is observed and its impact on the reconstructed jet spectrum is evaluated for varying particle momentum thresholds, by folding the measured fluctuations with steeply falling spectra
Next-to-leading order QCD predictions for $Z^0 H^0 + {\rm jet}$
  production at LHC

We calculate the complete next-to-leading order (NLO) QCD corrections to the
$Z^0H^0$ production in association with a jet at the LHC. We study the impacts
of the NLO QCD radiative corrections to the integrated and differential cross
sections and the dependence of the cross section on the
factorization/renormalization scale. We present the transverse momentum
distributions of the final $Z^0$-, Higgs-boson and leading-jet. We find that
the NLO QCD corrections significantly modify the physical observables, and
obviously reduce the scale uncertainty of the LO cross section. The QCD
K-factors can be 1.183 and 1.180 at the $\sqrt{s}=14 TeV$ and $\sqrt{s}=7 TeV$
LHC respectively, when we adopt the inclusive event selection scheme with
$p_{T,j}^{cut}=50 GeV$, $m_H=120 GeV$ and $\mu=\mu_r=\mu_f=\mu_0 \equiv
1/2(m_Z+m_H)$. Furthermore, we make the comparison between the two scale
choices, $\mu=\mu_0$ and $\mu=\mu_1=1/2(E_{T}^{Z}+E_{T}^{H}+
\sum_{j}E_{T}^{jet})$, and find the scale choice $\mu=\mu_1$ seems to be more
appropriate than the fixed scale $\mu=\mu_0$.Comment: 18 pages, 7 figure
Correlators of Giant Gravitons from dual ABJ(M) Theory

We generalize the operators of ABJM theory, given by Schur polynomials, in
ABJ theory by computing the two point functions in the free field and at finite
$(N_1,N_2)$ limits. These polynomials are then identified with the states of
the dual gravity theory. Further, we compute correlators among giant gravitons
as well as between giant gravitons and ordinary gravitons through the
corresponding correlators of ABJ(M) theory. Finally, we consider a particular
non-trivial background produced by an operator with an $\cal R$-charge of
$O(N^2)$ and find, in presence of this background, due to the contribution of
the non-planar corrections, the large $(N_1,N_2)$ expansion is replaced by
$1/(N_1+M)$ and $1/(N_2+M)$ respectively.Comment: Latex, 32+1 pages, 2 figures, journal versio
Asymptotic charged BTZ black hole solutions

The well-known $(2+1)$-dimensional Reissner-Nordstrom (BTZ) black hole can be
generalized to three dimensional Einstein-nonlinear electromagnetic field,
motivated from obtaining a finite value for the self-energy of a pointlike
charge. Considering three types of nonlinear electromagnetic fields coupled
with Einstein gravity, we derive three kinds of black hole solutions which
their asymptotic properties are the same as charged BTZ solution. In addition,
we calculate conserved and thermodynamic quantities of the solutions and show
that they satisfy the first law of thermodynamics. Finally, we perform a
stability analysis in the canonical ensemble and show that the black holes are
stable in the whole phase space.Comment: 18 pages, 10 figure
Light stringy states

We carefully study the spectrum of open strings localized at the
intersections of D6-branes and identify the lowest massive 'twisted' states and
their vertex operators, paying particular attention to the signs of the
intersection angles. We argue that the masses of the lightest states scale as
M^2 ~ \theta M^2_s and can thus be parametrically smaller than the string
scale. Relying on previous analyses, we compute scattering amplitudes of
massless 'twisted' open strings and study their factorization, confirming the
presence of the light massive states as sub-dominant poles in one of the
channels
Electroweak corrections to Higgs-strahlung off W/Z bosons at the Tevatron and the LHC with Hawk

The associate production of Higgs bosons with W or Z bosons, known as Higgs-strahlung, is an important search channel for Higgs bosons at the hadron colliders Tevatron and LHC for low Higgs-boson masses. We refine a previous calculation of next-to-leading-order electroweak corrections (and recalculate the QCD corrections) upon including the leptonic decay of the W/Z bosons, thereby keeping the fully differential information of the 2-lepton + Higgs final state. The gauge invariance of the W/Z-resonance treatment is ensured by the use of the complex-mass scheme. The electroweak corrections, which are at the level of - (5-10)% for total cross sections, further increase in size with increasing transverse momenta p T in differential cross sections. For instance, for p T,H {\underset{raise0.3emsmashriptscriptstylethicksim}{ > }} 200 GeV, which is the interesting range at the LHC, the electroweak corrections to WH production reach about -14% for M H = 120 GeV. The described corrections are implemented in the Hawk Monte Carlo program, which was initially designed for the vector-boson-fusion channel, and are discussed for various distributions in the production channels {text{pp}}/{text{p}}overline {text{p}} to {text{H}} + l{{v}l}{{l}^{ - }}{{l}^{ + }}/ + X
Search for the standard model Higgs boson in the H → ZZ → ℓ+ℓ - τ +τ - decay channel in pp collisions at √s = 7 TeV

Journal of High Energy Physics 2012.3 (2012): 081 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMA search is reported for the standard model Higgs boson in the H → ZZ → l +l -τ +τ - decay mode, where l = μ or e, in proton-proton collisions at √s = 7TeV, corresponding to an integrated luminosity of 4.7 fb-1 collected with the CMS detector at the LHC. No evidence is found for a significant deviation from the background expectation. An upper limit four to twelve times larger than the predicted value is set at 95% confidence level for the product of the standard model Higgs boson production cross section and decay branching fraction in the mass range 190 < mH < 600 Ge
Instantons and Killing spinors

We investigate instantons on manifolds with Killing spinors and their cones. Examples of manifolds with Killing spinors include nearly Kähler 6-manifolds, nearly parallel G2-manifolds in dimension 7, Sasaki-Einstein manifolds, and 3-Sasakian manifolds. We construct a connection on the tangent bundle over these manifolds which solves the instanton equation, and also show that the instanton equation implies the Yang-Mills equation, despite the presence of torsion. We then construct instantons on the cones over these manifolds, and lift them to solutions of heterotic supergravity. Amongst our solutions are new instantons on even-dimensional Euclidean spaces, as well as the well-known BPST, quaternionic and octonionic instantons.DFG/436/RUS 113/995EPSRC/EP/G038775/
E{7(7)} Symmetry and Finiteness of N=8 Supergravity

We study N=8 supergravity deformed by the presence of the candidate
counterterms. We show that even though they are invariant under undeformed
E{7(7)}, all of the candidate counterterms violate the deformed E{7(7)} current
conservation. The same conclusion follows from the uniqueness of the Lorentz
and SU(8) covariant, E{7(7)} invariant unitarity constraint expressing the
56-dimensional E{7(7)} doublet via 28 independent vectors. Therefore E{7(7)}
duality predicts the all-loop UV finiteness of perturbative N=8 supergravity.Comment: 18 page
A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for
  MSSM and NMSSM

Motivated by the recent LHC hints of a Higgs boson around 125 GeV, we assume
a SM-like Higgs with the mass 123-127 GeV and study its implication in low
energy SUSY by comparing the MSSM and NMSSM. We consider various experimental
constraints at 2-sigma level (including the muon g-2 and the dark matter relic
density) and perform a comprehensive scan over the parameter space of each
model. Then in the parameter space which is allowed by current experimental
constraints and also predicts a SM-like Higgs in 123-127 GeV, we examine the
properties of the sensitive parameters (like the top squark mass and the
trilinear coupling A_t) and calculate the rates of the di-photon signal and the
VV^* (V=W,Z) signals at the LHC. Our typical findings are: (i) In the MSSM the
top squark and A_t must be large and thus incur some fine-tuning, which can be
much ameliorated in the NMSSM; (ii) In the MSSM a light stau is needed to
enhance the di-photon rate of the SM-like Higgs to exceed its SM prediction,
while in the NMSSM the di-photon rate can be readily enhanced in several ways;
(iii) In the MSSM the signal rates of pp -> h -> VV^* at the LHC are never
enhanced compared with their SM predictions, while in the NMSSM they may get
enhanced significantly; (iv) A large part of the parameter space so far
survived will be soon covered by the expected XENON100(2012) sensitivity
(especially for the NMSSM).Comment: Version in JHEP (refs added
W Z plus missing-E-T signal from gaugino pair production at LHC7

LHC searches for supersymmetry currently focus on strongly produced sparticles, which are copiously produced if gluinos and squarks have masses of a few hundred GeV. However, in supersymmetric models with heavy scalars, as favored by the decoupling solution to the SUSY flavor and CP problems, and m((g) over tilde) greater than or similar to 500 GeV as indicated by recent LHC results, chargino-neutralino ((W) over tilde (+/-)(1)(Z) over tilde (2)) production is the dominant cross section for m((W) over tilde1) similar to m((Z) over tilde2) &lt; m(&lt;(g)over tilde&gt;)/3 at LHC with root s = 7 TeV (LHC7). Furthermore, if m((Z) over tilde1) + (m (Z) over tilde) less than or similar to m((Z) over tilde2) less than or similar to m((Z) over tilde1) + m(h), then (Z) over tilde (2) dominantly decays via (Z) over tilde (2) -&gt; (Z) over tilde (1)Z, while (W) over tilde (1) decays via (W) over tilde (1) -&gt; (Z) over tilde W-1. We investigate the LHC7 reach in the W Z + (sic)T channel (for both leptonic and hadronic decays of the W boson) in models with and without the assumption of gaugino mass universality. In the case of the mSUGRA/CMSSM model with heavy squark masses, the LHC7 discovery reach in the W Z+ (sic)T channel becomes competetive with the reach in the canonical (sic)T + jets channel for integrated luminosities similar to 30 fb(-1). We also present the LHC7 reach for a simplified model with arbitrary m((Z) over tilde1) and m((W) over tilde1) similar to m((Z) over tilde2). Here, we find a reach of up to m((W) over tilde1) similar to 200 (250) GeV for 10 (30) fb(-1).U.S. Department of Energy [DE-FG02-04ER41305, DE-FG02-04ER41291, DE-FG02-95ER40896]IN2P3 of France under PICS FR-USA [5872]Fundacao de Apoio a Pesquisa do Estado de Sao Paulo (FAPESP
Loop equations and topological recursion for the arbitrary β two-matrix model

International audienceWe write the loop equations for the $\beta$ two-matrix model, and we propose a topological recursion algorithm to solve them, order by order in a small parameter. We find that to leading order, the spectral curve is a "quantum" spectral curve, i.e. it is given by a differential operator (instead of an algebraic equation for the hermitian case). Here, we study the case where that quantum spectral curve is completely degenerate, it satisfies a Bethe ansatz, and the spectral curve is the Baxter TQ relation
Consistent truncation of d = 11 supergravity on AdS_4 x S^7

We study the system of equations derived twenty five years ago by B. de Wit
and the first author [Nucl. Phys. B281 (1987) 211] as conditions for the
consistent truncation of eleven-dimensional supergravity on AdS_4 x S^7 to
gauged N = 8 supergravity in four dimensions. By exploiting the E_7(7)
symmetry, we determine the most general solution to this system at each point
on the coset space E_7(7)/SU(8). We show that invariants of the general
solution are given by the fluxes in eleven-dimensional supergravity. This
allows us to both clarify the explicit non-linear ansatze for the fluxes given
previously and to fill a gap in the original proof of the consistent
truncation. These results are illustrated with several examples.Comment: 41 pages, typos corrected, published versio
The three-loop form factor in N=4 super Yang-Mills

In this paper we study the Sudakov form factor in {N} = {4} super Yang-Mills theory to the three-loop order. The latter is expressed in terms of planar and non-planar loop integrals. We show that it is possible to choose a representation in which each loop integral has uniform transcendentality. We verify analytically the expected exponentiation of the infrared divergences with the correct values of the three-loop cusp and collinear anomalous dimensions in dimensional regularisation. We find that the form factor in {N} = {4} super Yang-Mills can be related to the leading transcendentality part of the quark and gluon form factors in QCD. We also study the ultraviolet properties of the form factor in D > 4 dimensions, and find unexpected cancellations, resulting in an improved ultraviolet behaviour
Combining High-scale Inflation with Low-energy SUSY

We propose a general scenario for moduli stabilization where low-energy supersymmetry can be accommodated with a high scale of inflation. The key ingredient is that the stabilization of the modulus field during and after inflation is not associated with a single, common scale, but relies on two different mechanisms. We illustrate this general scenario in a simple example, where during inflation the modulus is stabilized with a large mass by a Kähler potential coupling to the field which provides the inflationary vacuum energy via its F-term. After inflation, the modulus is stabilized, for instance, by a KKLT superpotential
Lifshitz field theories with SDiff symmetries.

We consider Lifshitz field theories with a dynamical critical exponent z equal to the dimension of space d and with a large group of base space symmetries, concretely space coordinate transformations with unit determinant (“Special Diffeomorphisms”). The field configurations of the theories considered may have the topology of skyrmions, vortices or monopoles, although we focus our detailed investigations on skyrmions. The resulting Lifshitz field theories have a BPS bound and exact soliton solutions saturating the bound, as well as time-dependent topological Q-ball solutions. Finally, we investigate the U(1) gauged versions of the Lifshitz field theories coupled to a Chern-Simons gauge field, where the BPS bound and soliton solutions saturating the bound continue to exist
Hawking-Page phase transition in BTZ black hole revisited

We consider the Hawking-Page phase transition between the BTZ black hole of
$M \ge 0$ and the thermal soliton of $M=-1$. In this system, there exists a
mass gap so that there does not seem to exist a continuous thermodynamic phase
transition. We consistently construct the off-shell free energies of the black
hole and the soliton by properly taking into account the conical space. And
then, the continuous off-shell free energy to describe tunneling effect can be
realized through non-equilibrium solitons.Comment: 13 pages, 3 figures, minor clarifications and corrections, accepted
  for publication in JHE
Flavor Violating Higgs Decays

We study a class of nonstandard interactions of the newly discovered 125 GeV
Higgs-like resonance that are especially interesting probes of new physics:
flavor violating Higgs couplings to leptons and quarks. These interaction can
arise in many frameworks of new physics at the electroweak scale such as two
Higgs doublet models, extra dimensions, or models of compositeness. We rederive
constraints on flavor violating Higgs couplings using data on rare decays,
electric and magnetic dipole moments, and meson oscillations. We confirm that
flavor violating Higgs boson decays to leptons can be sizeable with, e.g., h ->
tau mu and h -> tau e branching ratios of order 10% perfectly allowed by low
energy constraints. We estimate the current LHC limits on h -> tau mu and h ->
tau e decays by recasting existing searches for the SM Higgs in the tau-tau
channel and find that these bounds are already stronger than those from rare
tau decays. We also show that these limits can be improved significantly with
dedicated searches and we outline a possible search strategy. Flavor violating
Higgs decays therefore present an opportunity for discovery of new physics
which in some cases may be easier to access experimentally than flavor
conserving deviations from the Standard Model Higgs framework.Comment: 39 pages, 12 figures, 3 tables; v2: Improved referencing, updated mu
  -> 3e bounds to include large loop contributions, corrected single top
  constraints; conclusions unchanged; matches version to be published in JHEP;
  v3: included 2-loop contributions in mu -> e conversion, improved discussion
  of tau -> 3 mu and of EDM constraints on FV top-Higgs couplings; conclusions
  unchange
Un-twisting the NHEK with spectral flows

We show that the six-dimensional uplift of the five-dimensional
Near-Horizon-Extremal-Kerr (NHEK) spacetime can be obtained from an AdS_3 X S^3
solution by a sequence of supergravity - but not string theory - dualities. We
present three ways of viewing these pseudo-dualities: as a series of
transformations in the STU model, as a combination of Melvin twists and
T-dualities and, finally, as a sequence of two generalized spectral flows and a
coordinate transformation. We then use these to find an infinite family of
asymptotically flat embeddings of NHEK spacetimes in string theory,
parameterized by the arbitrary values of the moduli at infinity. Our
construction reveals the existence of non-perturbative deformations of
asymptotically-NHEK spacetimes, which correspond to the bubbling of nontrivial
cycles wrapped by flux, and paves the way for finding a microscopic field
theory dual to NHEK which involves Melvin twists of the D1-D5 gauge theory. Our
analysis also clarifies the meaning of the generalized spectral flow
solution-generating techniques that have been recently employed in the
literature.Comment: 53 pages, LaTe
Generalized sine-Gordon models and quantum braided groups

published in Open Access by SpringerWe determine the quantized function algebras associated with various examples of generalized sine-Gordon models. These are quadratic algebras of the general Freidel-Maillet type, the classical limits of which reproduce the lattice Poisson algebra recently obtained for these models defined by a gauged Wess-Zumino-Witten action plus an integrable potential. More specifically, we argue based on these examples that the natural framework for constructing quantum lattice integrable versions of generalized sine-Gordon models is that of affine quantum braided groups
RG flows in d dimensions, the dilaton effective action, and the
  a-theorem

Motivated by the recent dilaton-based proof of the 4d a-theorem, we study the
dilaton effective action for RG flows in d dimensions. When d is even, the
action consists of a Wess-Zumino (WZ) term, whose Weyl-variation encodes the
trace-anomaly, plus all Weyl-invariants. For d odd, the action consists of
Weyl-invariants only. We present explicit results for the flat-space limit of
the dilaton effective action in d-dimensions up to and including 8-derivative
terms. GJMS-operators from conformal geometry motivate a form of the action
that unifies the Weyl-invariants and anomaly-terms into a compact general-d
structure.
  A new feature in 8d is the presence of an 8-derivative Weyl-invariant that
pollutes the O(p^8)-contribution from the WZ action to the dilaton scattering
amplitudes; this may challenge a dilaton-based proof of an a-theorem in 8d.
  We use the example of a free massive scalar for two purposes: 1) it allows us
to confirm the structure of the d-dimensional dilaton effective action
explicitly; we carry out this check for d=3,4,5,...,10; and 2) in 8d we
demonstrate how the flow (a_UV - a_IR) can be extracted systematically from the
O(p^8)-amplitudes despite the contamination from the 8-derivative
Weyl-invariant. This computation gives a value for the a-anomaly of the 8d free
conformal scalar that is shown to match the value obtained from zeta-function
regularization of the log-term in the free energy.Comment: 31 pages, 7 figures. v.2 minor corrections, references adde
Oscillations of neutrino velocity

In this paper, we consider the problem of quantum measurement of neutrino
velocity. We show, that the well known neutrino flavor oscillations are always
accompanied by the oscillations of neutrino velocity. In particular, the
velocity of a freely moving neutrino is demonstrated to periodically exceed the
speed of light. Unfortunately, the superluminal effect turns out to be too
small to be experimentally detected. It is also shown that neutrino velocity
significantly depends on the energy, size and shape of the neutrino wave
packet. Owing to the big experimental error of the recent experiments, these
dependences remained unnoticeable. Finally, we have shown that the recent
claims that superluminal neutrinos should loose energy during their flight is
not true. Instead, our formula suggests the approximate conservation of energy
along neutrino trajectory. All these results have been obtained without
violation of special theory of relativity.Comment: 17 pages, 5 figure
Constraints on Anomalous Fluid in Arbitrary Dimensions

Using the techniques developed in arxiv: 1203.3544 we compute the universal
part of the equilibrium partition function characteristic of a theory with
multiple abelian U(1) anomalies in arbitrary even spacetime dimensions. This
contribution is closely linked to the universal anomaly induced transport
coefficients in hydrodynamics which have been studied before using entropy
techniques. Equilibrium partition function provides an alternate and a
microscopically more transparent way to derive the constraints on these
transport coefficients. We re-derive this way all the known results on these
transport coefficients including their polynomial structure which has recently
been conjectured to be linked to the anomaly polynomial of the theory. Further
we link the local description of anomaly induced transport in terms of a Gibbs
current to the more global description in terms of the partition function