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Results: 309
The Quark-Antiquark Contribution to the Fully Exclusive BFKL Evolution at NLL Accuracy.
Jeppe R Andersen
Jan 21, 2010
We calculate the quark–anti-quark contribution to the next-to-leading logarithmic
corrections to the BFKL kernel, retaining the dependence on the momenta of
the produced particles. This allows us to study the details of the NLL...
COVID 19 and the Resurgence of Outdoor Activities
Ola Andersen
Apr 09, 2021
The suspension of K-12 classes in NL due to COVID 19 happened quickly and seemed to shock us all. The severity of the situation did not hit home until classes were suspended and announcements were made about the possibility of...
Published by: The Morning Watch: Educational and Social Analysis
The effect of coach and player injury knowledge, attitudes, and beliefs on adherence to the FIFA 11+ program in female youth soccer
Background Injury knowledge and beliefs influence uptake of prevention programmes, but the relationship between knowledge, beliefs and adherence remains unclear.
Aim To describe injury knowledge and beliefs among youth...
Aim To describe injury knowledge and beliefs among youth...
Local neighbourhoods for first-passage percolation on the configuration model
We consider first-passage percolation on the configuration model. Once the network has been generated each edge is assigned an i.i.d. weight modeling the passage time of a message along this edge. Then independently two vertices...
Emergence of condensation in Kingman's model of selection and mutation
We describe the onset of condensation in the simple model for the balance between selection and mutation given by Kingman in terms of a scaling limit theorem. Loosely speaking, this shows that the wave moving towards genes of...
Emergence of condensation in Kingman's model of selection and mutation
We describe the onset of condensation in the simple model for the balance between selection and mutation given by Kingman in terms of a scaling limit theorem. Loosely speaking, this shows that the wave moving towards genes of...
Multi-Jet Processes in the High Energy Limit of QCD.
Jeppe R Andersen
Jan 25, 2010
We discuss how the multi-Regge factorisation of QCD amplitudes can be used in
the study of multi-jet processes at colliders. We describe how the next-to-leading
logarithmic (NLL) BFKL evolution can be combined with energy and...
New possibilities in the study of NLL BFKL.
Jeppe R Andersen
Feb 08, 2010
The high energy limit of scattering processes in QCD is, at least on the purely theoretical
level, described by the BFKL equation. However, many phenomenological studies of BFKL
fail miserably when confronted with data. In this...
Published by: HEP, Cavendish Laboratory, University of Cambridge
A Closer look at the analysis of NLL BFKL.
Jeppe R Andersen
Jan 27, 2010
The initial analyses of the next-to-leading logarithmic corrections to the BFKL kernel were
very discouraging. Encouraged by the success of new methods in the analysis of the BFKL
equation at full NLL accuracy we demonstrate in...
A Study of the gluon ladder in diffractive processes.
The solution to the non–forward BFKL equation in the Leading Logarithmic approximation
is expressed in terms of a sum of iterations of its kernel directly in transverse momentum
and rapidity space. Several studies of the...
Published by: HEP, Cavendish Laboratory, University of Cambridge
Local neighbourhoods for first-passage percolation on the configuration model
We consider first-passage percolation on the configuration model. Once the network has been generated each edge is assigned an i.i.d. weight modeling the passage time of a message along this edge. Then independently two vertices...
The effect of coach and player injury knowledge, attitudes, and beliefs on adherence to the FIFA 11+ program in female youth soccer
Background Injury knowledge and beliefs influence uptake of prevention programmes, but the relationship between knowledge, beliefs and adherence remains unclear.
Aim To describe injury knowledge and beliefs among youth...
Aim To describe injury knowledge and beliefs among youth...
Tracing cellular dynamics in tissue development, maintenance and disease.
The coordination of cell proliferation and differentiation is central to the development and maintenance of tissues, while its dysregulation underlies the transition to diseased states. By combining lineage tracing with...
Typical distances in ultrasmall random networks
We show that in preferential attachment models with power-law exponent τ ∈ (2, 3) the distance between randomly chosen vertices in the giant component is asymptotically equal to (4 + o(1))log log N / (-log(τ - 2)), where N...
On the role of NLL corrections and energy conservation in the high energy evolution of QCD.
Jeppe R Andersen
Jan 25, 2010
We present a new method for solving the BFKL evolution applicable at both
leading and next-to-leading logarithmic accuracy, and tailored to the study of QCD multijet
events at colliders. We utilise this to discuss corrections to...
COVID 19 and the Resurgence of Outdoor Activities
Ola Andersen
Apr 09, 2021
The suspension of K-12 classes in NL due to COVID 19 happened quickly and seemed to shock us all. The severity of the situation did not hit home until classes were suspended and announcements were made about the possibility of...
Published by: The Morning Watch: Educational and Social Analysis
Radiative B decay spectrum
We compute the differential ¯B → Xsγ decay width in the Standard Model as a
function of the photon energy using Dressed Gluon Exponentiation (DGE). The resummed
spectrum is matched with the fixed–order expansion, making use of...
A New approach to inclusive decay spectra.
The main obstacle in describing inclusive decay spectra in QCD — which, in particular, limits
the precision in extrapolating the measured ¯B −→ Xs
rate to the full phase space as well as
in extracting |Vub| from inclusive...
Published by: HEP, Cavendish Laboratory, University of Cambridge
Perspective
Ghadeer S Aljuraiban, Rachel Gibson, Linda M Oude Griep, Nagako Okuda, Lyn M Steffen, Linda Van Horn, Queenie Chan
Jul 18, 2019
Healthy dietary habits are the cornerstone of cardiovascular disease (CVD) prevention. Numerous researchers have developed diet quality indices to help evaluate and compare diet quality across and within various populations. The...
Non-extensive condensation in reinforced branching processes
We study a class of branching processes in which a population consists of immortal individuals equipped with a fitness value. Individuals produce offspring with a rate given by their fitness, and offspring may either belong to...
Non-extensive condensation in reinforced branching processes
We study a class of branching processes in which a population consists of immortal individuals equipped with a fitness value. Individuals produce offspring with a rate given by their fitness, and offspring may either belong to...
QCD and electroweak interference in Higgs production by gauge boson fusion.
We explicitly calculate the contribution to Higgs production at the LHC from the interference
between gluon fusion and Weak Vector Boson fusion, and compare it to the pure QCD and pure
Electro-weak result. While the effect is...
Fixed-order and merged parton-shower predictions for WW and WWj
production at the LHC including NLO QCD and EW corrections
First, we present a combined analysis of ${\rm p}{\rm p} \to \mu^+ \nu_\mu
{\rm e}^- \bar \nu_{\rm e}$ and ${\rm p}{\rm p} \to \mu^+ \nu_\mu {\rm e}^-
\bar \nu_{\rm e} {\rm j}$ at next-to-leading order, including both QCD...
Progress in computing inclusive B decay spectra.
We review the progress in the QCD calculation of inclusive decay spectra. It was recently shown that the inherent
infrared finiteness of inclusive spectra extends beyond the level of logarithms. Dressed Gluon...
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