A Virtual Pandora\u27s Box: What Cyberspace Gambling Prohibition Means to Terrestrial Casino Operators

Recently, there has been increased pressure on the U.S. Congress to act against Internet gambling. While it may be tempting for terrestrial casinos to watch idly as the federal government moves to eliminate a potential competitor, those in the business of gaming must be leery of any federal efforts to halt gambling online. In the final analysis, the same arguments to restrict consumer choice in cyberspace can be easily used against gambling in real casinos-a compelling reason for terrestrial gaming operators to forcefully oppose any federal restrictions on Americans\u27 rights to gamble

A theory for the interpretation of lunar surface magnetometer data

Electromagnetic interaction of moon with spatial irregularities in interplanetary magnetic field

Transient electromagnetic interaction of the moon with the solar wind

Transient response of moon to variations in interplanetary magnetic fiel

The early despinning of the sun

Despinning of sun when passing through T Tauri stage during earlier developmen

Quark and Gluon Tagging at the LHC

Being able to distinguish light-quark jets from gluon jets on an event-by-event basis could significantly enhance the reach for many new physics searches at the Large Hadron Collider. Through an exhaustive search of existing and novel jet substructure observables, we find that a multivariate approach can filter out over 95% of the gluon jets while keeping more than half of the light-quark jets. Moreover, a combination of two simple variables, the charge track multiplicity and the $p_T$-weighted linear radial moment (girth), can achieve similar results. While this pair appears very promising, our study is only Monte Carlo based, and other discriminants may work better with real data in a realistic experimental environment. To that end, we explore many other observables constructed using different jet sizes and parameters, and highlight those that deserve further theoretical and experimental scrutiny. Additional information, including distributions of around 10,000 variables, can be found on this website http://jets.physics.harvard.edu/qvg .Comment: 5 pages, 3 figures. v2 published versio