A search for resonances decaying into a Higgs boson and a new particle X in the XH → qqbb final state with the ATLAS detector

A search for heavy resonances decaying into a Higgs boson (H) and a new particle (X) is reported, utilizing 36.1 fb−1 of proton–proton collision data at collected during 2015 and 2016 with the ATLAS detector at the CERN Large Hadron Collider. The particle X is assumed to decay to a pair of light quarks, and the fully hadronic final state is analysed. The search considers the regime of high XH resonance masses, where the X and H bosons are both highly Lorentz-boosted and are each reconstructed using a single jet with large radius parameter. A two-dimensional phase space of XH mass versus X mass is scanned for evidence of a signal, over a range of XH resonance mass values between 1 TeV and 4 TeV, and for X particles with masses from 50 GeV to 1000 GeV. All search results are consistent with the expectations for the background due to Standard Model processes, and 95% CL upper limits are set, as a function of XH and X masses, on the production cross-section of the resonance

Queries in ethnography,

Mode of access: Internet

Colonization : a study of the founding of new societies /

Bibliography: p. 599-611.Mode of access: Internet

Societal evolution; a study of the evolutionary basis of the science of society,

Mode of access: Internet

Commercial and industrial geography,

Mode of access: Internet

The science of society,

Mode of access: Internet

Social Darwinism in Anglophone Academic Journals: A Contribution to the History of the Term

This essay is a partial history of the term ‘Social Darwinism’. Using large electronic databases, it is shown that the use of the term in leading Anglophone academic journals was rare up to the 1940s. Citations of the term were generally disapproving of the racist or imperialist ideologies with which it was associated. Neither Herbert Spencer nor William Graham Sumner were described as Social Darwinists in this early literature. Talcott Parsons (1932, 1934, 1937) extended the meaning of the term to describe any extensive use of ideas from biology in the social sciences. Subsequently, Richard Hofstadter (1944) gave the use of the term a huge boost, in the context of a global anti-fascist war.Peer reviewe