Digital Commons Network^™

One-Prong Τ Decays With Kaons, R. Barate, M. Thulasidas

Research Collection School Of Computing and Information Systems

One-prong ττ decays into final states involving kaons are studied with about 161 000 τ+τ−τ+τ− events collected by the ALEPH detector from 1991 to 1995. Charged kaons are identified by dE/dx measurement, while K0LKL0's are detected through their interaction in calorimeters. Branching ratios are measured for the inclusive mode, B(τ−→K−Xντ)=(1.52±0.04±0.04)%B(τ−→K−Xντ)=(1.52±0.04±0.04)%, where X can be any system of neutral particles, and for the exclusive modesB(τ−→K−ντ)=(6.96±0.25±0.14)×10−3,B(τ−→K−π0ντ)=(4.44±0.26±0.24)×10−3,B(τ−→K−π0π0ντ)=(0.56±0.20±0.15)×10−3,B(τ−→K−π0π0π0ντ)=(0.37±0.21±0.11)×10−3,B(τ−→K−K0ντ)=(1.62±0.21±0.11)×10−3,B(τ−→K−K0π0ντ)=(1.43±0.25±0.15)×10−3,B(τ−→K0¯¯¯¯¯¯¯π−ντ)=(9.28±0.45±0.34)×10−3,B(τ−→K0¯¯¯¯¯¯¯π−π0ντ)=(3.47±0.53±0.37)×10−3,B(τ−→K−ντ)=(6.96±0.25±0.14)×10−3,B(τ−→K−π0ντ)=(4.44±0.26±0.24)×10−3,B(τ−→K−π0π0ντ)=(0.56±0.20±0.15)×10−3,B(τ−→K−π0π0π0ντ)=(0.37±0.21±0.11)×10−3,B(τ−→K−K0ντ)=(1.62±0.21±0.11)×10−3,B(τ−→K−K0π0ντ)=(1.43±0.25±0.15)×10−3,B(τ−→K0¯π−ντ)=(9.28±0.45±0.34)×10−3,B(τ−→K0¯π−π0ντ)=(3.47±0.53±0.37)×10−3,where the first error is statistical and the second is systematical. Upper limits for B(τ−→K0¯¯¯¯¯¯¯π−π0π0ντ)B(τ−→K0¯π−π0π0ντ) and B(τ−→K−K0π0π0ντ)B(τ−→K−K0π0π0ντ) are also obtained. Mass spectra in the final states are investigated in order to study the relevant dynamics.

Search For Bs0 Oscillations Using Inclusive Lepton Events, R. Barate, M. Thulasidas

Research Collection School Of Computing and Information Systems

A search for B0sBs0 oscillations is performed using a sample of semileptonic b-hadron decays collected by the ALEPH experiment during 1991–95. Compared to previous inclusive lepton analyses, the proper time resolution and b-flavour mistag rate are significantly improved. Additional sensitivity to B0sBs0 mixing is obtained by identifying subsamples of events having a B0sBs0 purity which is higher than the average for the whole data sample. Unbinned maximum likelihood amplitude fits are performed to derive a lower limit of Δms>9.5ps−1Δms>9.5ps−1 at the 95% confidence limit (95% CL). Combining with the ALEPH D−sDs−-based analyses yields Δms>9.6ps−1Δms>9.6ps−1 at 95% …

Search For Supersymmetry With A Dominant R-Parity Violating Lqd̄ Coupling In E+E- Collisions At Centre-Of-Mass Energies Of 130 Gev To 172 Gev, R. Barate, M. Thulasidas

Research Collection School Of Computing and Information Systems

A search for pair-production of supersymmetric particles under the assumption that R-parity is violated via a dominant LQD¯LQD¯ coupling has been performed using the data collected by ALEPH at centre-of-mass energies of 130–172 GeV. The observed candidate events in the data are in agreement with the Standard Model expectation. This result is translated into lower limits on the masses of charginos, neutralinos, sleptons, sneutrinos and squarks. For instance, for m0=500m0=500 GeV/c2/c2 and tanβ=2–√tan⁡β=2 charginos with masses smaller than 81 GeV/c2/c2 and neutralinos with masses smaller than 29 GeV/c2/c2 are excluded at the 95% confidence level for any generation structure of …

Study Of T Decays Involving Kaons, Spectral Functions And Determination Of The Strange Quark Mass, R. Barate, M. Thulasidas

Research Collection School Of Computing and Information Systems

All ALEPH measurements of branching ratios of ττ decays involving kaons are summarized including a combination of results obtained with K0SKS0 and K0LKL0 detection. The decay dynamics are studied, leading to the determination of contributions from vector K∗(892)K∗(892) and K∗(1410)K∗(1410), and axial-vector K1(1270)K1(1270) and K1(1400)K1(1400) resonances. Agreement with isospin symmetry is observed among the different final states. Under the hypothesis of the conserved vector current, the spectral function for the KK¯¯¯¯¯πKK¯π mode is compared with the corresponding cross section for low energy e+e−e+e− annihilation, yielding an axial-vector fraction of (94+6−8)%(94−8+6)% for this mode. The branching ratio for ττ decay into …

Decision Analytic Approach To Severe Head Injury Management., Harmanec D., Tze-Yun Leong, Sundaresh S., Poh K., Yeo T., Ng I., Lew T.

Research Collection School Of Computing and Information Systems

Severe head injury management in the intensive care unit is extremely challenging due to the complex domain, the uncertain intervention efficacies, and the time-critical setting. We adopt a decision analytic approach to automate the management process. We document our experience in building a simplified influence diagram that involves about 3000 numerical parameters. We identify the inherent problems in structuring a model with unclear domain relationships, numerous interacting variables, and real-time multiple inputs. We analyze the effectiveness and limitations of the decision analytic approach and present a set of desiderata for effective knowledge acquisition in this setting. We also propose a …

Tricky Magic: Blacks As Immigrants And The Paradox Of Foreignness, Lolita Buckner Inniss

Faculty Journal Articles and Book Chapters

No abstract provided.

Adoption In The Progressive Era: Preserving, Creating, And Re-Creating Families, Joanna L. Grossman, Chris Guthrie

Faculty Journal Articles and Book Chapters

No abstract provided.

International Commercial Transactions: 1998, Peter Winship

Faculty Journal Articles and Book Chapters

No abstract provided.

Business As Usual: The Dynamics Of Government‐Business Relations In The Hong Kong Special Administrative Region, Tuck Hong James Tang

Research Collection School of Social Sciences

This is an attempt to evaluate the implications of Hong Kong's political transition topost-colonial rule for economic governance in the SAR beyond the 'Beijing versus HongKong' perspective. The article examines the changing government-business dynamics inHong Kong after the reversion by focusing on three inter-related dimensions: economicideology; institutional and policy framework; and the new political environment inpost-colonial Hong Kong. By challenging the assertion that Hong Kong is returning to thepre-Patten colonial order under Chinese management, it argues that economic governancein Hong Kong has always been more complex than has been characterized in the literature.A conceptual framework incorporating the dynamic interplay of …

Spectrum 1999, Saint Mary's College Of California

The Undergraduate Spectrum

No abstract provided.

Imsa 1999 Profile, Office Of College And Academic Counseling

IMSA Profile

"IMSA transforms mathematics and science education through an integrative approach to teaching and learning. Advanced courses in mathematics, science, the arts and humanities emphasize connections within and across the disciplines. Students learn to integrate content and skills, demonstrating broad knowledge of important concepts. As apprentice investigators, students engage in individual and group research in all curricular areas. The Academy offered three program pathways for the classes of 2000 and 2001; the Core Program, Integrative Learning Experience (ILE), and Perspectives. Each pathway was designed to provide the same essential content and rigor but varied the instructional approach. The Core Program offered …

The United States - "Capital" Of The World: An Analysis Of Why The United States Practices Capital Punishment While The International Tred Is Towards Its Abolition, Kristi Tumminello Prinzo

Brooklyn Journal of International Law

No abstract provided.

The Bre-X Stock Debacle: Why The Enactment Of Canadian Federal Securities Legislation Would Be Good As Gold, Jeffrey Lehman

Brooklyn Journal of International Law

No abstract provided.

Regulatory Rooms In Australian Corporate Law, Joanna Bird, Jennifer Hill

Brooklyn Journal of International Law

No abstract provided.

Dilution, Confusion, Or Delusion? The Need For A Clear International Standard To Determine Trademark Dilution, William Marroletti

Brooklyn Journal of International Law

No abstract provided.

Ay 1998/1999 Nomination Guide, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Faculty Senate Roster, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Sec Roster, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Standing Committees And Councils, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Fs Meeting Minutes, 1999-04-21, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Fs Meeting Minutes, 1999-01-20, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Fs Meeting Minutes, 1998-10-21, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Sec Meeting Minutes, 1999-05-05, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Sec Meeting Minutes, 1999-03-03, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Sec Meeting Minutes, 1998-12-02, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Sec Meeting Minutes, 1998-09-18, Special Meeting, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 Sec Meeting Minutes, 1998-10-07, Faculty Senate

Faculty Senate Archives

No abstract provided.

Ay 1998/1999 News Release, 1999-01-13, Faculty Senate

Faculty Senate Archives

No abstract provided.

Book Review: "Encounters With Hinduism", Scott Daniel Dunbar

Journal of Hindu-Christian Studies

A review of Encounters with Hinduism by Horst Georg Pöhlmann.

I Was A Teenage Necrophiliac: A Screenplay, Walter Howard

Masters Theses

The critical essay that introduces this thesis pays homage to three people in the movie business who have most influenced my original screenplay, I Was a Teenage Necrophiliac. Also included is a section that briefly explains the impetus for this project, and a closing argument that examines the intentional use of cliche as a creative tool.

The zany style of writer/director John Waters is the first major creative influence described. Although my story is not as graphically extreme as some of Waters' earlier work (it would be easy to make a comedy about necrophilia a vile exploitation film), it does …