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The Vincia Parton Shower [article]

Walter T. Giele, Lisa Hartgring, David A. Kosower, Eric Laenen, Andrew J. Larkoski, Juan J. Lopez-Villarejo, Mathias Ritzmann, Peter Skands
2013 arXiv   pre-print
We summarize recent developments in the VINCIA parton shower. After a brief review of the basics of the formalism, the extension of VINCIA to hadron collisions is sketched.  ...  Like every parton shower, VINCIA implements the unitary evolution of a parton configuration from a scale Q start on the order of the hard scale of the partonic interaction to a scale Q had on the order  ...  Alternative definitions of Q for incoming partons are left to future investigations.  ... 
arXiv:1307.1060v1 fatcat:f2gojg5ehvh7fjzdyp3iwuj7dq

Matrix Elements, Parton Showers and Jet Merging: Jet Substructure and New Physics at the LHC [article]

Andrew Altheimer, Gustaaf Brooijmans
2011 arXiv   pre-print
Only tt + 1 (exclusive) or 2 (inclusive) light parton processes were considered, as the production cross section for tt + 0 light parton events is vanishingly small.  ...  Parton showering and hadronization were also performed Jets were reconstructed at particle-level (i.e. after parton shower and hadronization) using the D0 Run II Cone [15] , anti-k ⊥ [16] , and Cambridge  ... 
arXiv:1109.0030v2 fatcat:jw7aauf5bbgbtmkdbtaokwn6fm

Heavy-flavor parton distributions without heavy-flavor matching prescriptions

Valerio Bertone, Alexandre Glazov, Alexander Mitov, Andrew S. Papanastasiou, Maria Ubiali
2018 Journal of High Energy Physics  
In any observable, there are three basic ingredients where the dependence on the mass m appears: the pdfs, the strong coupling α s and the partonic cross-section dσ.  ...  The pdfs are shown for four values of the partonic momentum fraction x. The evolution of α s is shown in fig. 2 . In fig. 13 fig. 15 (fig. 16 ), respectively.  ... 
doi:10.1007/jhep04(2018)046 fatcat:ihiuwy5jtffabe37xvudedrjde

Extraction of Generalized Parton Distribution Observables from Deeply Virtual Electron Proton Scattering Experiments [article]

Brandon Kriesten, Simonetta Liuti, Liliet Calero-Diaz, Dustin Keller, Andrew Meyer, Gary R. Goldstein, J. Osvaldo Gonzalez-Hernandez
2020 arXiv   pre-print
On one side, we uncover an avenue to a precise extraction of J_z, given by the combination of generalized parton distributions, H+E, through a generalization of the Rosenbluth separation method used in  ...  The key to unlocking direct experimental access to spatial distributions of partons inside the proton was provided by Ji in Ref.  ...  Partonic Structure of Polarized Structure Functions We now discuss the quark-gluon content of the various configurations described by the helicity amplitudes f Λγ Λ γ ΛΛ up to O(1/Q).  ... 
arXiv:1903.05742v3 fatcat:3dd5zq76ibbp7ipbg6vcixnnri

Conspiracy theory and cognitive style: a worldview

Neil Dagnall, Kenneth Drinkwater, Andrew Parker, Andrew Denovan, Megan Parton
2015 Frontiers in Psychology  
This paper assessed whether belief in conspiracy theories was associated with a particularly cognitive style (worldview). The sample comprised 223 volunteers recruited via convenience sampling and included undergraduates, postgraduates, university employees, and alumni. Respondents completed measures assessing a range of cognitive-perceptual factors (schizotypy, delusional ideation, and hallucination proneness) and conspiratorial beliefs (general attitudes toward conspiracist thinking and
more » ... ement of individual conspiracies). Positive symptoms of schizotypy, particularly the cognitive-perceptual factor, correlated positively with conspiracist beliefs. The best predictor of belief in conspiracies was delusional ideation. Consistent with the notion of a coherent conspiratorial mindset, scores across conspiracy measures correlated strongly. Whilst findings supported the view that belief in conspiracies, within the sub-clinical population, was associated with a delusional thinking style, cognitive-perceptual factors in combination accounted for only 32% of the variance.
doi:10.3389/fpsyg.2015.00206 pmid:25762969 pmcid:PMC4340140 fatcat:n6qna4tpkffdbpzo3jgc4u5rsa

Combining higher-order resummation with multiple NLO calculations and parton showers in GENEVA

Simone Alioli, Christian W. Bauer, Calvin Berggren, Andrew Hornig, Frank J. Tackmann, Christopher K. Vermilion, Jonathan R. Walsh, Saba Zuberi
2013 Journal of High Energy Physics  
We extend the lowest-order matching of tree-level matrix elements with parton showers to give a complete description at the next higher perturbative accuracy in alpha_s at both small and large jet resolutions  ...  where we employ N-jettiness as the jet resolution variable, combining its next-to-next-to-leading logarithmic resummation with fully exclusive NLO matrix elements, and PYTHIA8 as the backend for further parton  ...  with 3-parton events.  ... 
doi:10.1007/jhep09(2013)120 fatcat:2zmjglcj3zbwhanettl2r437xi

Computational modelling of atherosclerosis: developing a community resource [article]

Andrew Parton, Victoria McGilligan, Maurice O'Kane, Steven Watterson
2018 bioRxiv   pre-print
Proceedings of the National Academy of Sciences of the United States of America. 2006;103(10):3781-6. doi: 10.1073/pnas.0511043103 40 41 [41] Benson H, Watterson S, Sharman J, Mpamhanga C, Parton A, Southan  ... 
doi:10.1101/256750 fatcat:5kjoqwftinhxheufe3jp7zhlgu

Combining Higher-Order Resummation with Multiple NLO Calculations and Parton Showers in the GENEVA Monte Carlo Framework [article]

Simone Alioli, Christian W. Bauer, Calvin Berggren, Andrew Hornig, Frank J. Tackmann, Christopher K. Vermilion, Jonathan R. Walsh, Saba Zuberi
2013 arXiv   pre-print
We discuss the GENEVA Monte Carlo framework, which combines higher-order resummation (NNLL) of large Sudakov logarithms with multiple next-to-leading-order (NLO) matrix-element corrections and parton showering  ...  Once the partonic Geneva events are generated according to Eq. (2) -or its generalization in case of more jet multiplicities -they are fed through the Pythia 8 parton shower, whose purpose it is to fill  ...  In the resummation, the collinear radiation from the incoming partons is described by beam functions, which can be factorized into a convolution of the usual parton distribution functions and perturbatively  ... 
arXiv:1305.5246v1 fatcat:3x7jbvkbh5esxoydelkew2fkjm

Nucleon transverse momentum-dependent parton distributions in lattice QCD: Renormalization patterns and discretization effects

Boram Yoon, Michael Engelhardt, Rajan Gupta, Tanmoy Bhattacharya, Jeremy R. Green, Bernhard U. Musch, John W. Negele, Andrew V. Pochinsky, Andreas Schäfer, Sergey N. Syritsyn
2017 Physical Review D  
Lattice QCD calculations of transverse momentum-dependent parton distribution functions (TMDs) in nucleons are presented, based on the evaluation of nucleon matrix elements of quark bilocal operators with  ...  sufficiently large separation of the quark fields within the operator, whereas deviations are observed in the local limit and in the case of a straight link gauge connection, which is relevant to the studies of parton  ...  It is characterized by transverse momentum-dependent parton distribution functions (TMDs).  ... 
doi:10.1103/physrevd.96.094508 fatcat:6b5qowsdlva4vk66iivj5vov5i

The task-dependent use of binocular disparity and motion parallax information

Mark F Bradshaw, Andrew D Parton, Andrew Glennerster
2000 Vision Research  
The generality of this conclusion was questioned however by Bradshaw, Parton, and Eagle (1998) on a number of grounds including (i) the use of computer displays, (ii) the number of visual cues available  ... 
doi:10.1016/s0042-6989(00)00214-5 pmid:11090665 fatcat:lvnwx3yv3vcqtokxtkriowtt7i

An exploratory study of the impact of CMS double-differential top distributions on the gluon parton distribution function [article]

Michał Czakon, Sayipjamal Dulat, Tie-Jiun Hou, Joey Huston, Alexander Mitov, Andrew S. Papanastasiou, Ibrahim Sitiwaldi, Zhite Yu, C.–P. Yuan
2020 arXiv   pre-print
We have implemented it in a flexible, fully-differential partonic Monte Carlo program which, in principle, is able to calculate any infrared safe partonic observable.  ...  Sec.IV then explores the correlation between the measured distributions and the parton x values of the gluon distribution.  ... 
arXiv:1912.08801v2 fatcat:jj6djsxevjfi3kdnv5xpug3anu

Volition and Conflict in Human Medial Frontal Cortex

Parashkev Nachev, Geraint Rees, Andrew Parton, Christopher Kennard, Masud Husain
2005 Current Biology  
., Parton, A., Hodgson, T.L., Mort, D., and Rees, G. a priori as the intersection of Brodmann areas 6, 8, and 9, and the medial frontal gyrus label in the Talairach Daemon database [42]. (2003).  ... 
doi:10.1016/j.cub.2005.01.006 pmid:15668167 pmcid:PMC2648721 fatcat:cuhotu52infqbj2gycllzuebgu

Computational modelling of atherosclerosis

Andrew Parton, Victoria McGilligan, Maurice O'Kane, Francina R. Baldrick, Steven Watterson
2015 Briefings in Bioinformatics  
.+ Andrew+Parton 1 ,+Victoria+McGilligan 1 ,+Maurice+O'Kane 2 ,+Francina+R+ Baldrick 1 ,+Steven+Watterson 1* + + 1 Northern+Ireland+Centre+for+Stratified+Medicine,+Ulster+University,+CLTRIC,+Altnagelvin  ...  +Parton+is+a+doctoral+student+at+the+Northern+Ireland+Centre+for+Stratified+Medicine,+Ulster+ University.  ... 
doi:10.1093/bib/bbv081 pmid:26438419 fatcat:sknl4f5tqbcbffmundpmpwhq3i

Neuroticism related differences in the functional neuroanatomical correlates of multitasking. An fMRI study

Andre J. Szameitat, Rahmi Saylik, Andrew Parton
2016 Neuroscience Letters  
doi:10.1016/j.neulet.2016.10.029 pmid:27769891 fatcat:njui2sm4fjgkjfr34htpzbaksq

Nanoscape, a data-driven 3D real-time interactive virtual cell environment [article]

Shereen R Kadir, Andrew Lilja, Nick Gunn, Campbell Strong, Rowan T Hughes, Benjamin J Bailey, James Rae, Robert G Parton, John McGhee
2020 bioRxiv   pre-print
Knowledge of cellular and structural biology has reached unprecedented levels of detail. In conjunction with advances in 3D computer visualisation techniques this has allowed exploration of cellular ultrastructure and environments by a virtual user. The extraction and integration of relevant scientific information, along with consideration of the best representation of data, is often a bottleneck in the visualisation process for many 3D biomedical artists. Here we introduce "Nanoscape", a
more » ... orative project between 3D computer artists, computer graphics developers, and cell biologists that enables a user to navigate a cell in a complex 3D computer visualised environment. We combine actual data from various scientific disciplines (including structural biology, cell biology and multiple microscopic techniques) and apply artistic expression and design aesthetics to create a unique new experience where a real-time virtual explorer can traverse a cell surface, observe and interact with a more scientifically accurate cell surface environment.
doi:10.1101/2020.10.15.340778 fatcat:qwctfqxiabdaxfwenluftacugq
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