pinecone/core-2020-05-10-deduplication huggingface dataset:
Measurement of the J/ψ pair production cross-section in pp collisions at s=13 TeV

The production cross-section of J/ψ pairs is measured using a data sample of pp collisions collected by the LHCb experiment at a centre-of-mass energy of s=13 TeV, corresponding to an integrated luminosity of 279 ±11 pb−1. The measurement is performed for J/ψ mesons with a transverse momentum of less than 10 GeV/c in the rapidity range 2.0 < y < 4.5. The production cross-section is measured to be 15.2 ± 1.0 ± 0.9 nb. The first uncertainty is statistical, and the second is systematic. The differential cross-sections as functions of several kinematic variables of the J/ψ pair are measured and compared to theoretical predictions
Dinoprostone priming of the cervix prior to termination of midgestation pregnancy with sulprostone.

Contains fulltext :
                  86680.pdf (publisher's version ) (Open Access)OBJECTIVE: To determine if cervical ripening with the prostaglandin E2 analogue dinoprostone effectively shortens the induction-to-delivery interval in midpregnancy terminations with sulprostone. STUDY DESIGN: We retrospectively studied 100 women admitted for pregnancy termination at midgestation because of fetal anomalies between September 1989 and January 1993. Three regimens were used: 27 women received intramuscular sulprostone only, 29 women received intravenous sulprostone only, and 44 women received intravenous sulprostone after cervical priming with dinoprostone. Wilcoxon's rank sum test was used for statistical analysis. Results : Dinoprostone priming did not significantly reduce the induction-to-delivery interval in either parous or nulliparous women. However, when divided into first and subsequent pregnancies, we found that primigravidae, but not multigravidae, had an induction-to-delivery interval that was significantly shorter by approximately 10.5 h when pretreated with dinoprostone. CONCLUSION: Dinoprostone priming of the cervix prior to termination of midgestation pregnancy with sulprostone (Nalador) effectively shortens the induction-to-delivery interval in women in their first pregnancy.1 juni 199
FINANCIAL RISK AND FINANCIAL RISK MANAGEMENT TECHNOLOGY (RMT): ISSUES AND ADVANTAGES

Methods for sound risk management are of increasing interest among Wall Street investment banking and
brokerage firms in the aftermath of the October 1987 crash of the stock market. As the knowledge of advanced
technology applications in risk management increases, financial firms are finding innovative ways to use them
practically, in order to insulate themselves. The recent development in models, the software and hardware, and
the market data to track risk are all considered advances in Risk Management Technology (RMT). These
advances have affected all three stages of risk management: the identification, the measurement, and the
formulation of strategies to control financial risk. This article discusses the advances made in five areas of
RMT: communication software, object-oriented programming, parallel processing, neural nets and artificial
intelligence. Systems based on any of these areas may be used to add value to the business of a firm. A
business value linkage analysis shows how the utility of advanced systems can be measured to justify their costs.Information Systems Working Papers Serie
Cellular source and mechanisms of high transcriptome complexity in the Mammalian testis.

Understanding the extent of genomic transcription and its functional relevance is a central goal in genomics research. However, detailed genome-wide investigations of transcriptome complexity in major mammalian organs have been scarce. Here, using extensive RNA-seq data, we show that transcription of the genome is substantially more widespread in the testis than in other organs across representative mammals. Furthermore, we reveal that meiotic spermatocytes and especially postmeiotic round spermatids have remarkably diverse transcriptomes, which explains the high transcriptome complexity of the testis as a whole. The widespread transcriptional activity in spermatocytes and spermatids encompasses protein-coding and long noncoding RNA genes but also poorly conserves intergenic sequences, suggesting that it may not be of immediate functional relevance. Rather, our analyses of genome-wide epigenetic data suggest that this prevalent transcription, which most likely promoted the birth of new genes during evolution, is facilitated by an overall permissive chromatin in these germ cells that results from extensive chromatin remodeling
d=4+1 gravitating nonabelian solutions with bi-azimuthal symmetry

We construct static, asymptotically flat solutions of SU(2)
Einstein-Yang-Mills theory in 4+1 dimensions, subject to bi-azimuthal symmetry.
Both particle-like and black hole solutions are considered for two different
sets of boundary conditions in the Yang--Mills sector, corresponding to
multisolitons and soliton-antisoliton pairs. For gravitating multi-soliton
solutions, we find that their mass per unit charge is lower than the mass of
the corresponding unit charge, spherically symmetric soliton.Comment: 13 pages, 5 figures; v2: typos corrected, published versio
Canonical extension and canonicity via DCPO presentations

The canonical extension of a lattice is in an essential way a two-sided
completion. Domain theory, on the contrary, is primarily concerned with
one-sided completeness. In this paper, we show two things. Firstly, that the
canonical extension of a lattice can be given an asymmetric description in two
stages: a free co-directed meet completion, followed by a completion by
\emph{selected} directed joins. Secondly, we show that the general techniques
for dcpo presentations of dcpo algebras used in the second stage of the
construction immediately give us the well-known canonicity result for bounded
lattices with operators.Comment: 17 pages. Definition 5 was revised slightly, without changing any of
  the result
On the possible running of the cosmological "constant"

Despite the many outstanding cosmological observations leading to a strong
evidence for a nonvanishing cosmological constant (CC) term in the
gravitational field equations, the theoretical status of this quantity seems to
be lagging well behind the observational successes. It thus seems timely to
revisit some fundamental aspects of the CC term in Quantum Field Theory (QFT).
We emphasize that, in curved space-time, nothing a priori prevents this term
from potentially having a mild running behavior associated to quantum effects.
Remarkably, this could be the very origin of the dynamical nature of the Dark
Energy, in contrast to many other popular options considered in the literature.
In discussing this possibility, we also address some recent criticisms
concerning the possibility of such running. Our conclusion is that, while there
is no comprehensive proof of the CC running, there is no proof of the
non-running either. The problem can be solved only through a deeper
understanding of the vacuum contributions of massive quantum fields on a curved
spacetime background. We suggest that such investigations are at the heart of
one of the most important endeavors of fundamental theoretical cosmology in the
years to come.Comment: 18 pages, LaTeX. Shortened and modified version of arXiv:0808.0315,
  accepted for publication in Physics Letters B. Section 4 include our complete
  refutation of the criticisms from the authors of arXiv:0712.3040 [hep-th].
  Section 5 includes more detailed discussion of the possible form of effective
  action of gravity corresponding to the running of vacuum energ
SPIRE imaging of M82: cool dust in the wind and tidal streams

M82 is a unique representative of a whole class of galaxies, starbursts with
superwinds, in the Very Nearby Galaxy Survey with Herschel. In addition, its
interaction with the M81 group has stripped a significant portion of its
interstellar medium from its disk. SPIRE maps now afford better
characterization of the far-infrared emission from cool dust outside the disk,
and sketch a far more complete picture of its mass distribution and energetics
than previously possible. They show emission coincident in projection with the
starburst wind and in a large halo, much more extended than the PAH band
emission seen with Spitzer. Some complex substructures coincide with the
brightest PAH filaments, and others with tidal streams seen in atomic hydrogen.
We subtract the far-infrared emission of the starburst and underlying disk from
the maps, and derive spatially-resolved far-infrared colors for the wind and
halo. We interpret the results in terms of dust mass, dust temperature, and
global physical conditions. In particular, we examine variations in the dust
physical properties as a function of distance from the center and the wind
polar axis, and conclude that more than two thirds of the extraplanar dust has
been removed by tidal interaction, and not entrained by the starburst wind.Comment: accepted in A&A Herschel special issu
A posteriori error estimations for mixed finite-element approximations
  to the Navier-Stokes equations

A posteriori estimates for mixed finite element discretizations of the
Navier-Stokes equations are derived. We show that the task of estimating the
error in the evolutionary Navier-Stokes equations can be reduced to the
estimation of the error in a steady Stokes problem. As a consequence, any
available procedure to estimate the error in a Stokes problem can be used to
estimate the error in the nonlinear evolutionary problem. A practical procedure
to estimate the error based on the so-called postprocessed approximation is
also considered. Both the semidiscrete (in space) and the fully discrete cases
are analyzed. Some numerical experiments are provided
Thermal budget of superconducting digital circuits at sub-kelvin
  temperatures

Superconducting single-flux-quantum (SFQ) circuits have so far been developed
and optimized for operation at or above helium temperatures. The SFQ approach,
however, should also provide potentially viable and scalable control and
read-out circuits for Josephson-junction qubits and other applications with
much lower, milli-kelvin, operating temperatures. This paper analyzes the
overheating problem which becomes important in this new temperature range. We
suggest a thermal model of the SFQ circuits at sub-kelvin temperatures and
present experimental results on overheating of electrons and silicon substrate
which support this model. The model establishes quantitative limitations on the
dissipated power both for "local" electron overheating in resistors and
"global" overheating due to ballistic phonon propagation along the substrate.
Possible changes in the thermal design of SFQ circuits in view of the
overheating problem are also discussed.Comment: 10 pages, 8 figures, submitted to J. Appl. Phy
2+1-dimensional black holes with momentum and angular momentum

Exact solutions of Einstein's equations in 2+1-dimensional anti-de Sitter
space containing any number of black holes are described. In addition to the
black holes these spacetimes can possess ``internal'' structure. Accordingly
the generic spacetime of this type depends on a large number of parameters.
Half of these can be taken as mass parameters, and the rest as the conjugate
(angular) momenta. The time development and horizon structure of some of these
spacetimes are sketched.Comment: 11 pages, 4 LaTeX figures. Plenary talk presented at the "Journees
  Relativistes" in Weimar, September 1999. Submitted to Ann. Phys. (Leipzig
Two hadron production in e+e- annihilation to next-to-leading order
  accuracy

We discuss the production of two hadrons in e+e- annihilation within the
framework of perturbative QCD. The cross section for this process is calculated
to next-to-leading order accuracy with a selection of variables that allows the
consideration of events where the two hadrons are detected in the same jet. In
this configuration we contemplate the possibility that the hadrons come from a
double fragmentation of a single parton. The double-fragmentation functions
required to describe the transition of a parton to two hadrons are also
necessary to completely factorize all collinear singularities. We explicitly
show that factorization applies to next-to-leading order in the case of
two-hadron production.Comment: 13 pages, 4 figure
Effect of Asymmetric Strange-Antistrange Sea to the NuTeV Anomaly

We calculate the strange quark and antiquark distributions of the nucleon by
using the effective chiral quark model, and find that the strange-antistrange
asymmetry can bring a contribution of about 60--100% to the NuTeV deviation of
$\sin^{2}\theta_{w}$ from the standard value measured in other electroweak
processes. The results are insensitive to different inputs. The light-flavor
quark asymmetry of $\bar{d}-\bar{u}$ is also investigated and found to be
consistent with the experimental measurements. Therefore the chiral quark model
provides a successful picture to understand the NuTeV anomaly, as well as the
light-flavor quark asymmetry and the proton spin problem in previous studies.Comment: 10 LaTeX pages, 2 figures, Version to appear in PL
On the thermodynamics of periodic AdS black branes

We consider asymptotically AdS black brane solutions that are dual to CFTs
with periodic dependence on the spatial directions, arising from either a
spontaneous or an explicit breaking of translational symmetry. We derive a
simple expression for the variation of the free-energy with respect to changing
the periods. This explains some observations, based on numerics, that have
arisen in the explicit construction of thermodynamically preferred black holes
in the case that the spatial directions are infinite in extent and the symmetry
is spontaneously broken. It also leads to simple Smarr-type relations involving
the boundary stress tensor..Comment: 18 pages. Smarr relations strengthened. References adde
Breather solutions of the discrete p-Schr\"odinger equation

We consider the discrete p-Schr\"odinger (DpS) equation, which approximates
small amplitude oscillations in chains of oscillators with fully-nonlinear
nearest-neighbors interactions of order alpha = p-1 >1. Using a mapping
approach, we prove the existence of breather solutions of the DpS equation with
even- or odd-parity reflectional symmetries. We derive in addition analytical
approximations for the breather profiles and the corresponding intersecting
stable and unstable manifolds, valid on a whole range of nonlinearity orders
alpha. In the limit of weak nonlinearity (alpha --> 1^+), we introduce a
continuum limit connecting the stationary DpS and logarithmic nonlinear
Schr\"odinger equations. In this limit, breathers correspond asymptotically to
Gaussian homoclinic solutions. We numerically analyze the stability properties
of breather solutions depending on their even- or odd-parity symmetry. A
perturbation of an unstable breather generally results in a translational
motion (traveling breather) when alpha is close to unity, whereas pinning
becomes predominant for larger values of alpha.Comment: To appear in Springer Series on Wave Phenomen
Measurement of the cross section and angular correlations for associated
  production of a Z boson with b hadrons in pp collisions at sqrt(s) = 7 TeV

A study of proton-proton collisions in which two b hadrons are produced in
association with a Z boson is reported. The collisions were recorded at a
centre-of-mass energy of 7 TeV with the CMS detector at the LHC, for an
integrated luminosity of 5.2 inverse femtobarns. The b hadrons are identified
by means of displaced secondary vertices, without the use of reconstructed
jets, permitting the study of b-hadron pair production at small angular
separation. Differential cross sections are presented as a function of the
angular separation of the b hadrons and the Z boson. In addition, inclusive
measurements are presented. For both the inclusive and differential studies,
different ranges of Z boson momentum are considered, and each measurement is
compared to the predictions from different event generators at leading-order
and next-to-leading-order accuracy.Comment: Replaced with published version. Added journal reference and DO
Path-integral invariants in abelian Chern-Simons theory

We consider the $U(1)$ Chern-Simons gauge theory defined in a general closed
oriented 3-manifold $M$; the functional integration is used to compute the
normalized partition function and the expectation values of the link
holonomies. The nonperturbative path-integral is defined in the space of the
gauge orbits of the connections which belong to the various inequivalent $U(1)$
principal bundles over $M$; the different sectors of the configuration space
are labelled by the elements of the first homology group of $M$ and are
characterized by appropriate background connections. The gauge orbits of flat
connections, whose classification is also based on the homology group, control
the extent of the nonperturbative contributions to the mean values. The
functional integration is achieved in any 3-manifold $M$, and the corresponding
path-integral invariants turn out to be strictly related with the abelian
Reshetikhin-Turaev surgery invariants
Holographic Metals and Insulators with Helical Symmetry

Homogeneous, zero temperature scaling solutions with Bianchi VII spatial
geometry are constructed in Einstein-Maxwell-Dilaton theory. They correspond to
quantum critical saddle points with helical symmetry at finite density.
Assuming $AdS_{5}$ UV asymptotics, the small frequency/(temperature) dependence
of the AC/(DC) electric conductivity along the director of the helix are
computed. A large class of insulating and conducting anisotropic phases is
found, as well as isotropic, metallic phases. Conduction can be dominated by
dissipation due to weak breaking of translation symmetry or by a quantum
critical current.Comment: v2: references added. v1: 28 pages + appendices, 4 figure
The VIMOS Public Extragalactic Redshift Survey (VIPERS). Measuring
  nonlinear galaxy bias at z~0.8

We use the first release of the VImos Public Extragalactic Redshift Survey of
galaxies (VIPERS) of ~50,000 objects to measure the biasing relation between
galaxies and mass in the redshift range z=[0.5,1.1]. We estimate the 1-point
distribution function [PDF] of VIPERS galaxies from counts in cells and,
assuming a model for the mass PDF, we infer their mean bias relation. The
reconstruction of the bias relation from PDFs is performed through a novel
method that accounts for Poisson noise, redshift distortions, inhomogeneous sky
coverage and other selection effects. With this procedure we constrain galaxy
bias and its deviations from linearity down to scales as small as 4 Mpc/h and
out to z=1.1. We detect small (~3%) but significant deviations from linear
bias. The mean biasing function is close to linear in regions above the mean
density. The mean slope of the biasing relation is a proxy to the linear bias
parameter. It increases both with luminosity, in agreement with results of
previous analyses, and with redshift. However, we detect a strong bias
evolution only for z>0.9 in agreement with some, but not all, previous studies.
We also detected a significant increase of the bias with the scale, from 4 to 8
Mpc/h, now seen for the first time out to z=1. The amplitude of nonlinearity
depends on redshift, luminosity and on scales but no clear trend is detected.
Thanks to the large cosmic volume probed by VIPERS we find that the mismatch
between the previous estimates of bias at z~1 from zCOSMOS and VVDS-Deep galaxy
samples is fully accounted for by cosmic variance. The results of our work
confirm the importance of going beyond the over-simplistic linear bias
hypothesis showing that non-linearities can be accurately measured through the
applications of the appropriate statistical tools to existing datasets like
VIPERS.Comment: 20 pages, 15 figure
QCD NLO and EW NLO corrections to $t\bar{t}H$ production with top quark
  decays at hadron collider

Higgs boson production associated with a top quark pair is an important
process in studying the nature of the newly discovered Higgs boson at the LHC.
In this letter, we report on our calculations including the next-to-leading
order (NLO) QCD and NLO electroweak corrections to the $pp\to t\bar{t}H$
process in the standard model. We present the integrated cross sections at the
$14~{\rm TeV}$ LHC and even at the future proton-proton colliders with
$\sqrt{s}=33$ and $100~{\rm TeV}$. Our calculation includes the top quark
subsequent decays by adopting the narrow width approximation. The kinematic
distributions of Higgs boson and top quark decay products at the LHC are
provided. We find that the ${\cal O}(\alpha_s^2\alpha_{ew}^2)$ corrections are
quantitatively comparable with the ${\cal O}(\alpha_s^3\alpha_{ew})$
corrections in some kinematic region.Comment: 6 pages, 4 figure
Can we reach the Zeptouniverse with rare K and B_{s,d} decays?

The Large Hadron Collider will directly probe distance scales as short as
10^{-19}m, corresponding to energy scales at the level of a few TeV. In order
to reach even higher resolutions before the advent of future high-energy
colliders, it is necessary to consider indirect probes of New Physics (NP), a
prime example being Delta F=2 neutral meson mixing processes, which are
sensitive to much shorter distance scales. However Delta F=2 processes alone
cannot tell us much about the structure of NP beyond the LHC scales. To
identify for instance the presence of new quark flavour-changing dynamics of a
left-handed (LH) or right-handed (RH) nature, complementary results from Delta
F=1 rare decay processes are vital. We therefore address the important question
of whether NP could be seen up to energy scales as high as 200 TeV,
corresponding to distances as small as 10^{-21}m -- the Zeptouniverse -- in
rare K and B_{s,d} decays, subject to present Delta F=2 constraints and
perturbativity. We focus in particular on a heavy Z' gauge boson. If restricted
to purely LH or RH Z' couplings to quarks, we find that rare K decays, in
particular KL-> pi^0 nu nubar and K^+->pi^+ nu nubar, allow us to probe the
Zeptouniverse. On the other hand rare B_s and B_d decays, which receive
stronger Delta F=2 constraints, allow us to reach about 15 TeV. Allowing for
both LH and RH couplings a loosening of the Delta F=2 constraints is possible,
and we find that the maximal values of M_Z' at which NP effects that are
consistent with perturbative couplings could be found are approximately 2000
TeV for K decays and 160 TeV for rare B_{s,d} decays. Finally we present a
simple idea for an indirect determination of M_Z' that could be realised at the
next linear e^+e^- or mu^+ mu^- collider and with future precise flavour data.Comment: 43 pages, 10 figures, 6 tables; new section on the role of heavy
  neutral scalars in reaching Zeptouniverse added; clarifying comments and
  references adde
Central $\mu^{+}\mu^{-}$ production via photon-photon fusion in
  proton-proton collisions with proton dissociation

We present a formalism which uses fluxes of equivalent photons including
transverse momenta of the intermediate photons. The formalism reminds the
familiar $k_t$-factorization approach used, e.g., to study the two-photon
production of $c\bar{c}$ or $b\bar{b}$ pairs. The results of the new method are
compared with those obtained using the code LPAIR, and a good agreement is
obtained. The inclusion of the photon transverse momenta is necessary in
studies of correlation observables. We present distributions for the dimuon
invariant mass, transverse momentum of the muon pair and relative azimuthal
angle between muons separately for elastic-elastic, elastic-inelastic,
inelastic-elastic and inelastic-inelastic mechanisms. For typical experimental
cuts all mechanisms give similar contributions. The results are shown for
different sets of cuts relevant for the LHC experiments. The cross sections in
different regions of phase space depend on $F_2$ structure function in
different regions of $x$ and $Q^2$. A comment on $F_2$ is made.Comment: 24 pages, 36 figures, 2 table