Review of Recent and Future Needs in Hadronic Flavor Particle Production Measurements

Interactions of energetic particles on target nuclei producing secondary particles will be reviewed. Current simulation codes rely upon poorly measured results from the past. While current neutrino experiments, both atmospheric and accelerator based, rely upon Kaon and pion production measurements which are poorly known and dominate their errors. The goal for the current round of experiments are to dramatically improve these measurements while improvments beyond this are still needed. It is not only of interest to neutrino experiments, but also for designing calorimeters for the the International Linear Collider which must achieve unprecedented resolutions for reaching their stated physics goals.Comment: BEACH 2006, Lancaster, England Planery talk on Hadronic Flavor Cross-Section Measrument

Development of a neutrino detector capable of operating in space

The $\nu$SOL experiment to operate a neutrino detector close to the Sun is building a small test detector to orbit the Earth to test the concept in space. This detector concept is to provide a new way to detect neutrinos unshielded in space. A double delayed coincidence on Gallium nuclei that have a large cross section for solar neutrino interactions emitting a conversion electron and converting the nuclei into an excited state of Germanium, which decays with a well-known energy and half-life. This unique signature permits operation of the detector volume mostly unshielded in space with a high single particle counting rate from gamma and cosmic ray events. The test detector concept which has been studied in the lab and is planned for a year of operations orbiting Earth which is scheduled for launch in late 2024. It will be surrounded by an active veto and shielding will be operated in a polar orbit around the Earth to validate the detector concept and study detailed background spectrums that can fake the double timing and energy signature from random galactic cosmic or gamma rays. The success of this new technology development will permit the design of a larger spacecraft with a mission to fly close to the Sun and is of importance to the primary science mission of the Heliophysics division of NASA Space Science Mission Directorate, which is to better understand the Sun by measuring details of our Sun's fusion core.Comment: 15 Pisa Conference on Advanced Detecto

Ω−\Omega^- Hyperon Decay Modes with the HyperCP Experiment at Fermilab

The HyperCP experiment (Fermilab E871) has the largest recorded sample of $\Omega^-$ hyperon decays, allowing new searches for three rare decay modes, each with five charged tracks in the final state. Results are presented for $\Omega^-\to\Xi^-\pi^+\pi^-$; $\Omega^- \to \Xi^0(1530)\pi^-$; and the flavor-changing neutral-current decay $\Omega^- \to \Xi^-\mu^+\mu^-$. Normalization of these measurements were to the decay $\Omega^- \to \Lambda K^-$ with a five-track topology similar to the signal mode with the subsequent decay of $\Lambda \to p \pi^-$ and $K^- \to \pi^- \pi^+ \pi^-$ in the decay volume.Comment: Presented at the 5th International Conference on Hyperons, Charm and Beauty Hadrons, June 2002., Vancouver, Canada: 4 pages, 5 figures, New Result

Latest Results on Weak Semi-Leptonic Hyperon Decays in KTeV

The KTeV experiment at Fermilab has finished its $\Xi^0$ semi-leptonic decay analysis from the 1997 run and presented here are the final numbers for the branching ratio and form factors. A new run with three times the statistics was taken in 1999 and a first look at the data shows the quality and consistency of the results, predicting a similar improvement in these measurements.Comment: 4 pages and 4 figures, presented at IV Int. Conference on Hyperons, Charm and Beauty, Valencia Spain, 26-30 June 200

A Comment on the Implementation of the Strategy of Reinvigorating our Country through trained personnel in terms of Strategic Management

当今世界，以知识为主导、以高新技术及其产业为基础和支撑的知识经济已经悄然来临，世界范围内综合国力的竞争日趋激烈。这种竞争，说到底是人才的竞争，实质上就是人才战略的竞争。中国作为世界上最大的发展中国家，人口多，底子薄，人均资源相对不足，这一基本国情决定了中国的发展必须坚持“以人为本”，走人才强国之路。在2003年全国人才工作会议上，把实施人才强国战略作为科学发展观的有机组成部分，作为党和国家一项重大而紧迫的任务，作为新世纪新阶段国家人才工作的根本任务。“十一五”规划进一步提出了加快推进人才强国战略，为我国政治、经济、社会的发展提供智力支持。因此，在现阶段研究人才强国战略的实施具有重大的战略意义。...In our times, the knowledge economy that took knowledge as the leading factor, is based on new and high technology and industry. It has already come quietly. The competition of the comprehensive national strength is becoming fiercer and fiercer in the whole world. This kind of competition is talents' competition after all. It is a competition of the talents strategy in fact. As the largest develop...学位：管理学硕士院系专业：公共事务学院公共管理系_行政管理学号：20030603

Systematics of Inclusive Photon Production in 158 AGeV Pb Induced Reactions on Ni, Nb, and Pb Targets

The multiplicity of inclusive photons has been measured on an event-by-event basis for 158 AGeV Pb induced reactions on Ni, Nb, and Pb targets. The systematics of the pseudorapidity densities at midrapidity (rho_max) and the width of the pseudorapidity distributions have been studied for varying centralities for these collisions. A power law fit to the photon yield as a function of the number of participating nucleons gives a value of 1.13+-0.03 for the exponent. The mean transverse momentum, , of photons determined from the ratio of the measured electromagnetic transverse energy and photon multiplicity, remains almost constant with increasing rho_max. Results are compared with model predictions.Comment: 16 pages including 4 figure

Scaling of Particle and Transverse Energy Production in 208Pb+208Pb collisions at 158 A GeV

Transverse energy, charged particle pseudorapidity distributions and photon transverse momentum spectra have been studied as a function of the number of participants (N_{part}) and the number of binary nucleon-nucleon collisions (N_{coll}) in 158 A GeV Pb+Pb collisions over a wide impact parameter range. A scaling of the transverse energy pseudorapidity density at midrapidity as N_{part}^{1.08 \pm 0.06} and N_{coll}^{0.83 \pm 0.05} is observed. For the charged particle pseudorapidity density at midrapidity we find a scaling as N_{part}^{1.07 \pm 0.04} and N_{coll}^{0.82 \pm 0.03}. This faster than linear scaling with N_{part} indicates a violation of the naive Wounded Nucleon Model.Comment: 13 pages, 16 figures, submitted to European Physical Journal C (revised results for scaling exponents