Sourav Akib Sarkar

© 2015.This document a59Summary of the discussions and conclusions following from Dark Matter @ LHC 2014, held at Merton College, Oxford, on September 25-27, 2014. outlines a set of simplified models for dark matter and its interactions with Standard Model particles. It is intended to summarize the main characteristics that these simplified models have when applied to dark matter searches at the LHC, and to provide a number of useful expressions for reference. The list of models includes both s-channel and t-channel scenarios. For s-channel, spin-0 and spin-1 mediations are discussed, and also realizations where the Higgs particle provides a portal between the dark and visible sectors. The guiding principles underpinning the proposed simplified models are spelled out, and some suggestions for implementation are presented.

Why do societies erode future viability despite institutional adequacy, material sufficiency, and procedural success? Existing theories—scarcity, collapse, or mismanagement—fail to explain this paradox. We introduce institutionalized futurity loss: a structural process wherein societies deplete future options because of institutional reproduction, not failure. Treating future viability as a finite, exhaustible capacity, we develop a conversion-centered framework that decouples present adequacy from long-term welfare preservation. Through the late Roman polity as a civilizational demonstrator, we trace how temporal externalization, threshold blindness, and institutional delay cumulatively foreclose futures without triggering crisis. This is not collapse—but structured temporal depletion embedded in effective institutions. The paper specifies institutionalized futurity loss as a analytically distinct form of temporal constraint in which future viability is exhausted through the routine reproduction of effective institutions rather than their breakdown.