Results 71 to 80 of about 187,728 (264)

Search for new phenomena with top-quark pairs and large missing transverse momentum using 140 fb −1 of pp collision data at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics
A search is conducted for new phenomena in events with a top quark pair and large missing transverse momentum, where the top quark pair is reconstructed in final states with one isolated electron or muon and multiple jets.
The ATLAS collaboration   +2892 more
doaj   +1 more source

Measurements of the production cross-section for a Z boson in association with b-jets in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

open access: yesJournal of High Energy Physics, 2020
This paper presents a measurement of the production cross-section of a Z boson in association with b-jets, in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS experiment at the Large Hadron Collider using data corresponding to an ...
The ATLAS collaboration   +2957 more
doaj   +1 more source

Soft high-energy hadron-hadron scattering

open access: yesPhysics Letters B, 1992
Abstract Total cross sections and the slope parameters of the elastic differential cross sections in hadron-hadron scattering are evaluated in a scheme based on a simple stochastic model for the physical vacuum.
A. Krämer   +2 more
openaire   +2 more sources

In vivo dosimetry for proton therapy: A Monte Carlo study of the Gadolinium spectral response throughout the course of treatment

open access: yesMedical Physics, EarlyView.
Abstract Background In proton radiotherapy, the steep dose deposition profile near the end of the proton's track, the Bragg peak, ensures a more conformed deposition of dose to the tumor region when compared with conventional radiotherapy while reducing the probability of normal tissue complications.
Mariana Brás   +3 more
wiley   +1 more source

Performance of the missing transverse momentum triggers for the ATLAS detector during Run-2 data taking

open access: yesJournal of High Energy Physics, 2020
The factor of four increase in the LHC luminosity, from 0.5 × 1034 cm −2s −1 to 2.0 × 1034cm −2s −1, and the corresponding increase in pile-up collisions during the 2015–2018 data-taking period, presented a challenge for the ATLAS trigger, particularly ...
The ATLAS collaboration   +2963 more
doaj   +1 more source

Parton Models and Deep Hadron‐Hadron Scattering [PDF]

open access: yesAIP Conference Proceedings, 1973
We review the recent applications of various parton models, to the problem of hadron‐hadron scattering at large momentum transfers. Models which allow direct parton‐parton interaction as well as those that do not are considered. Predictions for the structure of hadronic final states (whether or not transverse jets exist), associated multiplities, and ...
openaire   +2 more sources

The vacuum structure in QCD and hadron-hadron scattering

open access: yesZeitschrift f�r Physik C: Particles and Fields, 1984
Standard ideas on the structure of the vacuum in QCD suggest it to be full of fluctuating color fields. We investigate the possible influence of the chromomagnetic vacuum fields on high energy hadron-hadron reactions. We suggest that high energy quarks traversing these fields will produce soft gluon and photon radiation analogous to synchrotron ...
A. Reiter, Otto Nachtmann
openaire   +2 more sources

Electron beam monitoring of a modified conventional medical accelerator with a portable current transformer system traceable to primary electrical standards

open access: yesMedical Physics, EarlyView.
Abstract Background Ultra‐high dose rate radiotherapy (UHDR) delivers therapeutic doses at rates >40 Gy/s in a fraction of a second, aiming to enhance the therapeutic ratio through the FLASH effect. The substantial increase in UHDR beam current poses serious challenges for conventional active dosimeters.
James Renaud   +3 more
wiley   +1 more source

Cooperative scattering of scalar waves by optimized configurations of point scatterers [PDF]

open access: yes, 2017
We investigate multiple scattering of scalar waves by an ensemble of $N$ resonant point scatterers in three dimensions. For up to $N = 21$ scatterers, we numerically optimize the positions of the individual scatterers, such as to maximize the total scattering cross section for an incoming plane wave, on the one hand, and to minimize the decay rate ...
arxiv   +1 more source

Factorization and Non-factorization in Diffractive Hard Scattering [PDF]

open access: yes, 1997
Factorization, in the sense defined for inclusive hard scattering, is discussed for diffractive hard scattering. A factorization theorem similar to its inclusive counterpart is presented for diffractive DIS. For hadron-hadron diffractive hard scattering,
Berera, Arjun
core   +2 more sources

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