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We apply a new non-parametric technique to reconstruct, with uncertainties, the projected mass distribution of the inner region of Abell 2218, using combined strong and weak lensing constraints from multiple-image systems and arclets with…

Astrophysics · Physics 2009-10-30 Hanadi M. AbdelSalam , Prasenjit Saha , Liliya L. R. Williams

The studies of colour reconnection in e+e- -> WW -> 4 jets events at LEP are reviewed. It is shown that the analysis of the particle- and energy flow between jets is sensitive to realistic model predictions. The effects on the W mass…

High Energy Physics - Experiment · Physics 2007-05-23 Paul de Jong

We review the precision measurement of the mass and couplings of the W Boson at LEP. The total and differential W+W- cross section is used to extract the WWZ and WWgamma couplings. We discuss the techniques used by the four LEP experiments…

High Energy Physics - Phenomenology · Physics 2009-11-10 Raimund Ströhmer

We study the impact of the recently computed mixed QCD-electroweak corrections to the production of $W$ and $Z$ bosons at the LHC on the value of the $W$ mass extracted from the transverse momentum distribution of charged leptons from $W$…

High Energy Physics - Phenomenology · Physics 2021-06-16 Arnd Behring , Federico Buccioni , Fabrizio Caola , Maximilian Delto , Matthieu Jaquier , Kirill Melnikov , Raoul Röntsch

The systematic uncertainty on the W mass and width measurement resulting from the imperfect knowledge of electroweak radiative corrections is discussed. The intrinsic uncertainty in the 4-f generator used by the DELPHI Collaboration is…

High Energy Physics - Phenomenology · Physics 2009-01-07 F. Cossutti

We examine the sources of parton distribution errors in the $W$ mass measurement, and point out shortcomings in the existing literature. Optimistic assumptions about strategies to reduce the error by normalizing to $Z$ observables are…

High Energy Physics - Phenomenology · Physics 2015-08-26 Seth Quackenbush , Zack Sullivan

The mass of the W boson is measured at LEP by fully reconstructing the W boson decays. The measurement techniques and systematic uncertainties are presented. The current measurement of the mass of the W boson at LEP yields 80.412 +/- 0.042…

High Energy Physics - Experiment · Physics 2007-05-23 Arno Straessner

We present a mathematical method to statistically decouple the effects of unknown inclination angles on the mass distribution of exoplanets that have been discovered using radial-velocity techniques. The method is based on the distribution…

Earth and Planetary Astrophysics · Physics 2015-06-05 S. Lopez , J. S. Jenkins

Double parton distributions can be computed from the perturbative splitting of one parton into two if the distance between the two observed partons is small. We develop schemes to take into account quark mass effects in this computation,…

High Energy Physics - Phenomenology · Physics 2023-09-25 Markus Diehl , Riccardo Nagar , Peter Plößl

We compute the effects of a finite $W$ boson mass on the inclusive $b\rightarrow c \ell \nu$ decay rate and the semileptonic moments. To this end we keep terms of $\mathcal{O}\left(q^2/m_W^2 \right)$ when integrating out the $W$ boson in…

High Energy Physics - Phenomenology · Physics 2023-05-10 Dante Bigi , Sandro Mächler

The reliability of cluster lens reconstruction techniques based on weak lensing is studied in terms of the accuracy of their reproduction of the total cluster mass as a function of distance from the cluster center. To do so, a variety of…

Astrophysics · Physics 2011-05-23 Matthias Bartelmann

We discuss theoretical uncertainties of the measurement of the $W$ boson mass at LEP2 energies, reconstructed with the help of the tandem of the Monte Carlo event generators KoralW and YFSWW3. Exploiting numerical results obtained with…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. Jadach , W. Placzek , M. Skrzypek , B. F. L. Ward , Z. Was

Correlations between high life expectancy and low lifespan inequality are frequently observed. A recent article seeks to explain this phenomenon by proposing that a mortality improvement maps to life expectancy and relative lifespan…

Populations and Evolution · Quantitative Biology 2020-11-23 M. J. Wensink

The influence of Bose-Einstein correlations on the determination of the mass of the W boson in e+e- -> WW -> 4jet events at LEP2 energies is studied, using a global event weighting method. We find that it is possible to keep the systematic…

High Energy Physics - Phenomenology · Physics 2009-04-09 V. Kartvelishvili , R. Kvatadze , R. Moller

Recent tests of the electroweak Standard Model are reviewed, covering the precise measurements of Z decays at LEP I and SLC and measurements of fermion pair production at higher energies at LEP II. Special emphasis is given to new results…

High Energy Physics - Phenomenology · Physics 2007-05-23 David Ward

The process $\ee \to \W^+\W^- \to \f_1 \fbar_2 \, \f_3 \fbar_4$ contains charges in the initial, intermediate and final stages. This gives a rich selection of possible QED interconnection effects. Coulomb interaction is the simplest of…

High Energy Physics - Phenomenology · Physics 2011-02-15 Valery A. Khoze , Torbjorn Sjostrand

In five years of operation (1996-2000) the four LEP2 experiments collected roughly 3 fb-1 of data from e+e- collisions at centre-of-mass energies between 161 and 207 GeV, yielding a total of about 40000 W-pair events. The analysis of the…

High Energy Physics - Experiment · Physics 2007-05-23 P. Azzurri

A precise determination of the $W$ boson mass at the CERN LHC requires a theoretical calculation in which the effect of the initial-state multiple soft-gluon emission and the final-state photonic correction are simultaneously included.…

High Energy Physics - Phenomenology · Physics 2007-05-23 Qing-Hong Cao , C. -P. Yuan

For the space of functions that can be approximated by linear chirps, we prove a reconstruction theorem by random sampling at arbitrary rates.

Probability · Mathematics 2010-08-31 Eric Carlen , R. Vilela Mendes

In this paper, the problem of reconstruction of signals in mixed Lebesgue spaces from their random average samples has been studied. Probabilistic sampling inequalities for certain subsets of shift-invariant spaces have been derived. It is…

Functional Analysis · Mathematics 2021-11-30 Ankush Kumar Garg , S. Arati , P. Devaraj