Bulletin of the American Physical Society
2006 New England Sections of the APS and AAPT Joint Fall Meeting
Friday–Saturday, October 13–14, 2006; Worcester, Massachusetts
Session APS1: Fundamental Physics and Physics in Sports |
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Chair: Paul Oxley, Holy Cross College Room: Holy Cross College Haberlin 236 |
Saturday, October 14, 2006 8:00AM - 8:12AM |
APS1.00001: Replacing The General Covariance In the SM Dirac Equation Gauge Derivatives With An Equivalent General Covariance In The Metric That This Dirac Equation is Derived From Joel Maker We replace the general covariance in the gauge derivatives in the Standard Model (SM) with a general covariance in the\textit{ original} metric that is used to start the derivation of the SM Dirac equation. This puts in the general covariance at the very beginning of the Dirac equation derivation, \textit{where it belongs}. The result is a new Dirac equation ($\surd $\textbf{\textit{g}}$_{\mu \mu }$\textit{$\gamma $}$_{\mu }$\textit{$\partial \psi $/$\partial $x}$_{\mu }$\textit{+i$\omega \psi $=0 }with\textbf{~}\textbf{g}$_{oo}$=1-2e$^{2}$/rm$_{e}$c$^{2})$ that does not require the covariant gauge derivatives anymore but yet still \textit{retains }the general covariance creating a \textbf{ONE} free parameter theory, instead of 18 of the SM. For example this new Dirac equation has a singularity-stability radius r$_{H}$ and, because of equivalence principle considerations, is allowed only \textit{one} type of charge e. Thus near r$_{H}$ the 2P$_{3/2}$ state for this new Dirac equation gives a $\psi ^{tt}\psi $ azimuthal trifolium, 3 lobe shape; so this ONE charge e (so don't need \textbf{ color} to guarantee this) spends \textbf{1/3} of its time in each lobe (\textbf{fractionally charged} lobes), the lobe structure is locked into the center of mass \textbf{(asymptotic freedom}), there are\textbf{ six} 2P states (corresponding to the 6 flavors) ;~ which are the~~\textbf{main properties of quarks}!~ Thus we end up with the experimental implications of the Standard Model (SM) by postulating just ONE particle with mass. [Preview Abstract] |
Saturday, October 14, 2006 8:12AM - 8:24AM |
APS1.00002: Large momentum transfer collisions off simple atoms Edward Kelsey A detailed analytic examination of the Born series is presented for large momentum transfer electron-hydrogen and electron-helium collisions. Comparison of the differential cross sections is made with recent fully numerical calculations and experiments for both elastic and inelastic collisions. The initial state is chosen to be a ground state as well as some of the lower lying excited bound states. The final state is one of the lower lying excited bound states. The agreement is remarkable at even incident energies below where one might expect the Born series would be accurate. [Preview Abstract] |
Saturday, October 14, 2006 8:24AM - 8:36AM |
APS1.00003: The Physics of Sports: A Physicist's View James Faller In this talk, I will present a physicist's way of looking at various aspects of sports. In particular, I will focus the discussion on how one might improve or enhance performance by thinking as a physicist about the processes involved. Examples that will be discussed will range from why hockey sticks are (today) curved to why good (basketball) dribbling should be ``heard.'' I will present several examples of the benefits of effecting efficiency in motion. This talk will draw on portions of presentations that I have given in the Boulder-Denver area during the past 30 years on the physics of sports. In all these presentations, my purpose was to teach and develop student interest in physics while talking about -- and showing the relevance of physics to -- sports. [Preview Abstract] |
Saturday, October 14, 2006 8:36AM - 8:48AM |
APS1.00004: Why the Game Clock Only Goes Forward Douglas Sweetser The laws of physics are indifferent to time going in reverse, while referees are not. The one exception, the 2nd law of thermodynamics, needs the asymmetry put in by hand. This segment of the community access TV show ``The Stand-Up Physicist'' explains why there is an arrow to spacetime. Briefly, the space part of spacetime gives spacetime reversal a handedness. [Preview Abstract] |
Saturday, October 14, 2006 8:48AM - 9:00AM |
APS1.00005: Kinematics of Liquid Crystal used in LCD Screens of Sport's Watches Dipti Sharma, Germano Iannacchione Properties of phase transitions of liquid crystals are used to manufacture LCD screens of watches and TVs. The kinematics of phase transitions of bulk liquid crystals pay vital role to understand the thermodynamic behavior of liquid crystals which further can be used in LCD screens of watches. Here we present the kinematics of phase transitions of bulk liquid crystal octylcyanobiphenyl (8CB) using calorimetry technique. Bulk 8CB was studied at different heating scan rates from 20 to 0.5 K/min for heating and cooling scans. Transition peaks, observed at the melting/crystallization, smectic-A to nematic (SmA-N), and nematic to isotropic (N-I) transitions, showed significant temperature shift in respective peaks with different scan rates following an Arrhenius behavior. The activation energy of a transition increases as the total energy involved in the transition decreases. The more enthalpy or latent heat involved in the transition belongs to less activation energy of the transition. This shows the significance of the 1$^{st}$ order transition as a transition from N to I, and needs less activation than 2$^{nd}$ order transition from SmA to N transition and hence liquid crystal is more used in this transition range for LCD screens of watches. [Preview Abstract] |
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