Results 71 to 80 of about 87,347 (293)

Search for stealth supersymmetry in events with jets, either photons or leptons, and low missing transverse momentum in pp collisions at 8 TeV

open access: yesPhysics Letters B, 2015
The results of a search for new physics in final states with jets, either photons or leptons, and low missing transverse momentum are reported. The study is based on a sample of proton–proton collisions collected at a center-of-mass energy s=8 TeV with ...
V. Khachatryan   +2131 more
doaj   +1 more source

Climate change effects on biomass and greenhouse gas emissions are ameliorated by nontoxic endophytes in southeastern USA transition zone tall fescue pastures

open access: yesGrassland Research, EarlyView.
Tall fescue produces more biomass and less carbon dioxide from the soil when it contains its beneficial fungal endophyte. Increased temperatures projected with climate change reduce fescue biomass, while altered rainfall frequency does not. Altering rainfall frequency and increasing temperatures can reduce carbon dioxide emissions from soil.
Rebecca K. McGrail   +4 more
wiley   +1 more source

Measurement of the production cross section ratio σ(χb2(1P))/σ(χb1(1P)) in pp collisions at s=8 TeV

open access: yesPhysics Letters B, 2015
A measurement of the production cross section ratio σ(χb2(1P))/σ(χb1(1P)) is presented. The χb1(1P) and χb2(1P) bottomonium states, promptly produced in pp collisions at s=8 TeV, are detected by the CMS experiment at the CERN LHC through their radiative ...
V. Khachatryan   +2146 more
doaj   +1 more source

On the Compton Scattering in String Theory [PDF]

open access: yes, 1997
We explicitly compute the Compton amplitude for the scattering of a photon and a (massless) ``electron/positron'' at tree level and one loop, in a four-dimensional fermionic heterotic string model. We comment on the relationship between the amplitudes we
Andrea Pasquinucci   +37 more
core   +3 more sources

Search for pair production of third-generation scalar leptoquarks and top squarks in proton–proton collisions at s=8 TeV

open access: yesPhysics Letters B, 2014
A search for pair production of third-generation scalar leptoquarks and supersymmetric top quark partners, top squarks, in final states involving tau leptons and bottom quarks is presented.
V. Khachatryan   +2143 more
doaj   +1 more source

Evaluating Brief Behavioural Activation for depression in adolescents with acquired brain injury using a single‐case experimental design

open access: yesJCPP Advances, EarlyView.
Abstract Background Adolescents who have had an acquired brain injury (ABI) commonly experience depression. Brief Behavioural Activation (Brief BA) is a successful, values‐based intervention for managing depression in neurotypical adolescents. This study investigated the effectiveness of Brief BA, using a single‐case experimental design, with ...
Conor R. O’Brien   +4 more
wiley   +1 more source

Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at s=7 TeV

open access: yesPhysics Letters B, 2015
Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of
V. Khachatryan   +2133 more
doaj   +1 more source

The prevalence of food insecurity and its relationship with wellbeing in a large, cross‐sectional study of children and young people in England

open access: yesJCPP Advances, EarlyView.
AbstractBackgroundWe aimed to assess the prevalence of food insecurity reported by children and young people in four areas of England in 2023 and examine its association with mental health and wellbeing.MethodsWe used data from the OxWell student survey, a large, diverse, cross‐sectional study of 38,430 students aged 8–19 years, conducted primarily in ...
Giacomo Bignardi   +3 more
wiley   +1 more source

Measurement of the tt¯ production cross section in pp collisions at s=8 TeV in dilepton final states containing one τ lepton

open access: yesPhysics Letters B, 2014
The top-quark pair production cross section is measured in final states with one electron or muon and one hadronically decaying τ lepton from the process tt¯→(ℓνℓ)(τντ)bb¯, where ℓ=e,μ. The data sample corresponds to an integrated luminosity of 19.6 fb−1
V. Khachatryan   +2143 more
doaj   +1 more source

A longitudinal exploration of self‐perception, mental images of the self, and depression in young people

open access: yesJCPP Advances, EarlyView.
Abstract Background Cognitive theories suggest that negative self‐perception is central to the development and maintenance of depression. One way self‐perception is represented is through mental imagery of the self. Despite its theoretical importance, the role of mental images of the self in depression has not been systematically examined.
Rebecca L. Dean   +4 more
wiley   +1 more source

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