Now showing items 1-20 of 66

• #### Charged jet cross section and fragmentation in proton-proton collisions at √s=7  TeV ﻿

(Peer reviewed; Journal article, 2019-01-31)
We report the differential charged jet cross section and jet fragmentation distributions measured with the ALICE detector in proton-proton collisions at a center-of-mass energy √s=7  TeV. Jets with pseudorapidity|η|<0.5 ...
• #### Charged jet cross sections and properties in proton-proton collisions at $\sqrt{s}=7$ TeV ﻿

(Peer reviewed; Journal article, 2015-06)
The differential charged jet cross sections, jet fragmentation distributions, and jet shapes are measured in minimum bias proton-proton collisions at centre-of-mass energy $\sqrt{s}=7$ TeV using the ALICE detector at the ...
• #### Combination of searches for heavy resonances decaying into bosonic and leptonic final states using 36  fb−1 of proton-proton collision data at √s=13 TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-09-26)
Searches for new heavy resonances decaying into different pairings of W, Z, or Higgs bosons, as well as directly into leptons, are presented using a data sample corresponding to 36.1 fb^−1 of pp collisions at √s = 13 TeV ...
• #### Combined measurements of Higgs boson production and decay using up to 80  fb−1 of proton-proton collision data at √s=13  TeV collected with the ATLAS experiment ﻿

(Journal article; Peer reviewed, 2020-01-03)
Combined measurements of Higgs boson production cross sections and branching fractions are presented. The combination is based on the analyses of the Higgs boson decay modes H→γγ, ZZ∗, WW∗, ττ, b¯b, μμ, searches for decays ...
• #### Cross-section measurements of the Higgs boson decaying into a pair of τ-leptons in proton-proton collisions at √s=13  TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2019)
A measurement of production cross sections of the Higgs boson in proton-proton collisions is presented in the H → τ τ decay channel. The analysis is performed using 36.1     fb − 1 of data recorded by the ATLAS experiment ...
• #### Dynamical grooming of QCD jets ﻿

(Journal article; Peer reviewed, 2020-02-06)
We propose a new class of infrared-collinear and Sudakov safe observables with an associated jet grooming technique that removes dynamically soft and large angle branches. It is based on identifying the hardest branch in ...
• #### Evaluating the price of tiny kinetic mixing ﻿

(Peer reviewed; Journal article, 2019)
We consider both “bottom-up” and “top-down” approaches to the origin of gauge kinetic mixing. We focus on the possibilities for obtaining kinetic mixings ϵ which are consistent with experimental constraints and are much ...
• #### Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-04-09)
A search for the associated production of the Higgs boson with a top quark pair (t¯tH) is reported. The search is performed in multilepton final states using a data set corresponding to an integrated luminosity of 36.1  fb−1 ...
• #### Improved bounds on W−W′ mixing with ATLAS resonant WZ production data at the LHC at √s=13  TeV ﻿

(Peer reviewed; Journal article, 2019)
New charged vector bosons W ′ decaying into gauge boson pairs W Z are predicted in many scenarios of new physics, including models with an extended gauge sector (EGM). Due to the large variety of models (other unification ...
• #### Improved constraints on the mixing and mass of Z ′ bosons from resonant diboson searches at the LHC at √ s = 13 TeV and predictions for Run II ﻿

(Peer reviewed; Journal article, 2018)
New neutral vector bosons Z ′ decaying to charged gauge boson pairs W + W − are predicted in many scenarios of new physics, including models with an extended gauge sector such as E 6 , left-right symmetric Z ′ LRS and the ...
• #### Measurement of charged jet cross section in pp collisions at √s=5.02  TeV ﻿

(Peer reviewed; Journal article, 2019)
The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5 < p T < 100     GeV / c in p p collisions at the center-of-mass energy of √ s = 5.02     TeV with the ALICE ...
• #### Measurement of dijet azimuthal decorrelations in pp collisions at √s=8  TeV with the ATLAS detector and determination of the strong coupling ﻿

(Peer reviewed; Journal article, 2018-11-07)
A measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations is presented, using the quantity RΔϕ. The quantity RΔϕ specifies the fraction of the inclusive dijet events in which the ...
• #### Measurement of soft-drop jet observables in pp collisions with the ATLAS detector at √s=13  TeV ﻿

(Journal article; Peer reviewed, 2020-03-17)
Jet substructure quantities are measured using jets groomed with the soft-drop grooming procedure in dijet events from 32.9 fb−1 of pp collisions collected with the ATLAS detector at √s=13 TeV. These observables are sensitive ...
• #### Measurement of the parity-violating asymmetry parameter αb and the helicity amplitudes for the decay Λb0 →J /ψ Λ0 with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2014-05-27)
A measurement of the parity-violating decay asymmetry parameter, αb, and the helicity amplitudes for the decay Λ0b→J/ψ(μ+μ−)Λ0(pπ−) is reported. The analysis is based on 1400 Λ0b and Λ¯0b baryons selected in 4.6  fb−1 of ...
• #### Measurement of the t¯tZ and t¯tW cross sections in proton-proton collisions at √s=13  TeV with the ATLAS detector ﻿

(Peer reviewed; Journal article, 2019)
A measurement of the associated production of a top-quark pair ( t ¯ t ) with a vector boson ( W , Z ) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented, using 36.1     fb − 1 of integrated ...
• #### Measurements of hadron production in π++C and π++Be interactions at 60  GeV/c ﻿

(Journal article; Peer reviewed, 2019)
Precise knowledge of hadron production rates in the generation of neutrino beams is necessary for accelerator-based neutrino experiments to achieve their physics goals. NA61/SHINE, a large-acceptance hadron spectrometer, ...
• #### Measurements of production and inelastic cross sections for p+C, p+Be, and p+Al at 60  GeV/c and p+C and p+Be at 120  GeV/c ﻿

(Journal article; Peer reviewed, 2019)
This paper presents measurements of production cross sections and inelastic cross sections for the following reactions: 60  GeV/c protons with C, Be, Al targets and 120  GeV/c protons with C and Be targets. The analysis ...
• #### Measurements of t¯t differential cross-sections of highly boosted top quarks decaying to all-hadronic final states in pp collisions at √s=13  TeV using the ATLAS detector ﻿

(Peer reviewed; Journal article, 2018-07-25)
Measurements are made of differential cross-sections of highly boosted pair-produced top quarks as a function of top-quark and tt system kinematic observables using proton-proton collisions at a center-of-mass energy of ...
• #### Properties of g→b¯b at small opening angles in pp collisions with the ATLAS detector at √s=13  TeV ﻿

(Peer reviewed; Journal article, 2019)
The fragmentation of high-energy gluons at small opening angles is largely unconstrained by present measurements. Gluon splitting to b -quark pairs is a unique probe into the properties of gluon fragmentation because ...
• #### Properties of jet fragmentation using charged particles measured with the ATLAS detector in pp collisions at √s=13  TeV ﻿

(Peer reviewed; Journal article, 2019)
This paper presents a measurement of quantities related to the formation of jets from high-energy quarks and gluons (fragmentation). Jets with transverse momentum 100 GeV < p T < 2.5 TeV and pseudorapidity | η | < 2.1 from ...