A Measurement of Psi(2S) Resonance Parameters

Cross sections for e+e- to hadons, pi+pi- J/Psi, and mu+mu- have been measured in the vicinity of the Psi(2S) resonance using the BESII detector operated at the BEPC. The Psi(2S) total width; partial widths to hadrons, pi+pi- J/Psi, muons; and corresponding branching fractions have been determined to be Gamma(total)= (264+-27) keV; Gamma(hadron)= (258+-26) keV, Gamma(mu)= (2.44+-0.21) keV, and Gamma(pi+pi- J/Psi)= (85+-8.7) keV; and Br(hadron)= (97.79+-0.15)%, Br(pi+pi- J/Psi)= (32+-1.4)%, Br(mu)= (0.93+-0.08)%, respectively.Comment: 8 pages, 6 figure

Search for the Chiral Magnetic Effect in Au+Au collisions at sNN=27\sqrt{s_{_{\rm{NN}}}}=27 GeV with the STAR forward Event Plane Detectors

A decisive experimental test of the Chiral Magnetic Effect (CME) is considered one of the major scientific goals at the Relativistic Heavy-Ion Collider (RHIC) towards understanding the nontrivial topological fluctuations of the Quantum Chromodynamics vacuum. In heavy-ion collisions, the CME is expected to result in a charge separation phenomenon across the reaction plane, whose strength could be strongly energy dependent. The previous CME searches have been focused on top RHIC energy collisions. In this Letter, we present a low energy search for the CME in Au+Au collisions at $\sqrt{s_{_{\rm{NN}}}}=27$ GeV. We measure elliptic flow scaled charge-dependent correlators relative to the event planes that are defined at both mid-rapidity $|\eta|<1.0$ and at forward rapidity $2.1 < |\eta|<5.1$. We compare the results based on the directed flow plane ($\Psi_1$) at forward rapidity and the elliptic flow plane ($\Psi_2$) at both central and forward rapidity. The CME scenario is expected to result in a larger correlation relative to $\Psi_1$ than to $\Psi_2$, while a flow driven background scenario would lead to a consistent result for both event planes[1,2]. In 10-50\% centrality, results using three different event planes are found to be consistent within experimental uncertainties, suggesting a flow driven background scenario dominating the measurement. We obtain an upper limit on the deviation from a flow driven background scenario at the 95\% confidence level. This work opens up a possible road map towards future CME search with the high statistics data from the RHIC Beam Energy Scan Phase-II.Comment: main: 8 pages, 5 figures; supplementary material: 2 pages, 1 figur

A Pleasurable Persuasive Model for E-fitness System

The regular physical activity with enough amounts of intensity, duration and frequency plays a key role in our health and body shape. However, for sedentary individuals who have negative or even painful feeling on exercise, it is a challenge to maintain enough activities. We propose a pleasurable persuasive model (PPM) to tackle the challenge. PPM emphasizes the combination of psychological driven and physiological adaptation, encouraging health behavior change in an aesthetical pleasurable way. Coming with a complete set of design strategies including pleasure, guidance, motivation, and reminder, a prototype system is developed to experiment the effectiveness and feasibility of the approach. The real time biofeedback and aesthetical pleasure is integrated seamlessly into this system. Results from a three-week in-lab user study have demonstrated that, the system is able to encourage regular physical activities with enough amounts of intensity, duration and frequency in a pleasurable way, proving the effectiveness of PPM

Magnetic properties of carbon doped CdS: A first-principles and Monte Carlo study

10.1103/PhysRevB.77.125211Physical Review B - Condensed Matter and Materials Physics7712-PRBM

Representation of Intractable Objects and Action Sequences in VR Using Hand Gesture Recognition

We propose a novel approach on using static and dynamic gesture recognition in VR games to represent interactive objects in games, such as equip- ment system, weapons and handy-tools. We examine various applications of ges- ture recognition in games, learning, medicine and VR, including how developers currently use the bundles of HDM devices paired with hand tracking sensors. The proposed approach provides game developers with a control over recording ges- tures and binding them to in-game intractable objects and equipment

Fast INTER mode decision with adaptive thresholds for H.264 encoding

2004 IEEE International Symposium on Consumer Electronics - Proceedings406-40