Snowmass White Paper CMS Upgrade: Forward Lepton-Photon System

This White Paper outlines a proposal for an upgraded forward region to extend CMS lepton (e, mu) and photon physics reach out to 2.2<eta<5 for LHC and SLHC, which also provides better performance for the existing or new forward hadron calorimetry for jet energy and (eta, phi) measurements, especially under pileup/overlaps at high lumi, as LHC luminosity, energy and radiation damage increases

Resolution of Nearly Mass Degenerate Higgs Bosons and Production of Black Hole Systems of Known Mass at a Muon Collider

The direct s-channel coupling to Higgs bosons is 40000 times greater for muons than electrons; the coupling goes as mass squared. High precision scanning of the lighter $h^0$ and the higher mass $H^0$ and $A^0$ is thus possible with a muon collider. The $H^0$ and $A^0$ are expected to be nearly mass degenerate and to be CP even and odd, respectively. A muon collider could resolve the mass degeneracy and make CP measurements. The origin of CP violation in the $K^{0}$ and $B^{0}$ meson systems might lie in the the $H^0/A^0$ Higgs bosons. If large extra dimensions exist, black holes with lifetimes of $\sim 10^{-26}$ seconds could be created and observed via Hawking radiation at the LHC. Unlike proton or electron colliders, muon colliders can produce black hole systems of known mass. This opens the possibilities of measuring quantum remnants, gravitons as missing energy, and scanning production turn on. Proton colliders are hampered by parton distributions and CLIC by beamstrahlung. The ILC lacks the energy reach.Comment: Latex, 5 pages, 2 figures, proceedings to the DPF 2004: Annual Meeting of the Division of Particles and Fields of APS, 26 August-31 August 2004, Riverside, CA, US

Deliberation in Aristotle’s Ethics and the Hippocratic Corpus

ABSTRACT DELIBERATION IN ARISTOTLE’S ETHICS AND THE HIPPOCRATIC CORPUS Anna M. Cremaldi Supervisor: Susan Sauvé Meyer Many scholars view Aristotle as the source of the particularist position in modern ethics –the view that action-guiding principles cannot capture the complexity of moral cases. John McDowell, Martha Nussbaum, and other particularists have developed this aspect of Aristotle’s ethics. Rather than aiming to provide an account of action-guiding principles – the view goes – moral philosophers should provide a theory that focuses on situational sensitivity, judgment and moral perception. In this dissertation, I argue that Aristotle was not a particularist. While he does highlight the importance of moral perception and the complexity of moral cases, Aristotle’s claims are consistent with the endorsement of an important role for action-guiding principles in deliberation. The dissertation shows as much by taking a new methodological approach to the study of Aristotle’s ethics. Scholars tend to focus on Aristotle’s texts alone to resolve interpretive questions. I approach Aristotle’s Nicomachean Ethics as if it were part of a genre of treatises on practical sciences. This methodological approach requires that we read Aristotle’s ethics in a new way, since it encourages us to see trends that stand out only in relief against the backdrop of Aristotle’s intellectual context. Specifically, I argue that studying the Hippocratic Corpus will help to resolve the interpretive debate about Aristotle’s particularism. More generally, it will also help to resolve other outstanding interpretive problems concerning, for example, the technê analogy, perception of particulars and the status of universals in ethics. Thus, in my dissertation I highlight the significant thematic overlap between Aristotle’s account of deliberation and the Hippocratic Corpus’s presentation of medical deliberation. While Hippocratic treatises express many of the same concerns and concepts that are found in textual evidence invoked by the particularists, they do not support a particularist interpretation of medical practice. Rather, in the Hippocratic Corpus, general theories and principles play an action-guiding role in medical deliberation, and they help us to see how an analogous case may be true of ethical deliberation on Aristotle’s account

6D Muon Ionization Cooling with an Inverse Cyclotron

A large admittance sector cyclotron filled with LiH wedges surrounded by helium or hydrogen gas is explored. Muons are cooled as they spiral adiabatically into a central swarm. As momentum approaches zero, the momentum spread also approaches zero. Long bunch trains coalesce. Energy loss is used to inject the muons into the outer rim of the cyclotron. The density of material in the cyclotron decreases adiabatically with radius. The sector cyclotron magnetic fields are transformed into an azimuthally symmetric magnetic bottle in the center. Helium gas is used to inhibit muonium formation by positive muons. Deuterium gas is used to allow captured negative muons to escape via the muon catalyzed fusion process. The presence of ionized gas in the center may automatically neutralize space charge. When a bunch train has coalesced into a central swarm, it is ejected axially with an electric kicker pulse.Comment: Five pages. LaTeX, three postscript figure files. To appear in the AIP Conference Proceedings for COOL05: International Workshop on Beam Cooling, Galena, IL, 18-23 Sept. 200