Iverson’s Assault: A Cautionary Tale

In the fall, I had the incredible opportunity to work on developing a wayside for the 20th Maine at Little Round Top. Working on that wayside was really meaningful to me because it was an opportunity to tell the kind of story that has the potential to inspire in visitors a sense of national pride and appreciation for our past. Though my colleague and I tried to make clear that the fighting at Little Round Top was a bloody and savage fight, the story remains a heroic tale of brave men, exceptional leadership, and sacrifice for a higher purpose. This semester, when working a wayside for Brigadier General Alfred Iverson’s July 1st assault, my colleague, Zach Wesley, and I dealt with an entirely different story. We were tasked with telling a narrative not of heroism and higher purpose, but about dereliction of duty and senseless death. This story is important to tell because it is a reminder of the harsh realities that accompany war in any age. [excerpt

Lee and Grant: Images of Fatherhood in Victorian America

Before they were great Civil War generals, Robert E. Lee and Ulysses S. Grant were fathers. Lee had seven children, three sons and four daughters. Grant was the father of three boys and a single girl. Though they are intended to paint overwhelmingly positive portraits of the two men, their children’s words give us a sense of these two generals as fathers and the ways in which they reflected standard trends in fathering during the Victorian Era. [excerpt

Little Round Top: Remembering What They Did Here

At Dedication Day, we remember Lincoln’s dedication of the Soldier’s National Cemetery. At the dedication ceremony, Lincoln delivered the Gettysburg Address, a speech that has become enshrined in the American consciousness. In just a few short minutes, Lincoln delivered a speech that evoked the spirit of the Founding Fathers, honored the sacrifice of the dead, and challenged the living to commit themselves to the young nation and the principles upon which it was founded. Through the Gettysburg Address, Lincoln shaped the collective memory of the Civil War and of American ideals. [excerpt

Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume I Introduction to DUNE

International audienceThe preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay—these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. The Deep Underground Neutrino Experiment (DUNE) is an international world-class experiment dedicated to addressing these questions as it searches for leptonic charge-parity symmetry violation, stands ready to capture supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector technical design report (TDR) describes the DUNE physics program and the technical designs of the single- and dual-phase DUNE liquid argon TPC far detector modules. This TDR is intended to justify the technical choices for the far detector that flow down from the high-level physics goals through requirements at all levels of the Project. Volume I contains an executive summary that introduces the DUNE science program, the far detector and the strategy for its modular designs, and the organization and management of the Project. The remainder of Volume I provides more detail on the science program that drives the choice of detector technologies and on the technologies themselves. It also introduces the designs for the DUNE near detector and the DUNE computing model, for which DUNE is planning design reports. Volume II of this TDR describes DUNE's physics program in detail. Volume III describes the technical coordination required for the far detector design, construction, installation, and integration, and its organizational structure. Volume IV describes the single-phase far detector technology. A planned Volume V will describe the dual-phase technology

Deep Underground Neutrino Experiment (DUNE), Far Detector Technical Design Report, Volume II: DUNE Physics

The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay -- these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. DUNE is an international world-class experiment dedicated to addressing these questions as it searches for leptonic charge-parity symmetry violation, stands ready to capture supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector technical design report (TDR) describes the DUNE physics program and the technical designs of the single- and dual-phase DUNE liquid argon TPC far detector modules. Volume II of this TDR, DUNE Physics, describes the array of identified scientific opportunities and key goals. Crucially, we also report our best current understanding of the capability of DUNE to realize these goals, along with the detailed arguments and investigations on which this understanding is based. This TDR volume documents the scientific basis underlying the conception and design of the LBNF/DUNE experimental configurations. As a result, the description of DUNE's experimental capabilities constitutes the bulk of the document. Key linkages between requirements for successful execution of the physics program and primary specifications of the experimental configurations are drawn and summarized. This document also serves a wider purpose as a statement on the scientific potential of DUNE as a central component within a global program of frontier theoretical and experimental particle physics research. Thus, the presentation also aims to serve as a resource for the particle physics community at large