The Ursinus Weekly, January 12, 1948

Bruins rally in closing minutes to upset Haverford, 52-47 • Work on \u2748 Ruby nearly completed; Request snapshots • Guest speaker claims U.S. change of policy needed to set peace • Bulletin columnist will address gridders at banquet tomorrow • Spanish Club hears Dr. R. Juarez discourse on present-day Cuba • Frats schedule annual rushing period; Joint council also plans Valentine hop • Sophs plan dance to open new term • Contest for May Pageant scripts announced at meeting of senate • Y holds annual retreat; Idler quits cabinet post • West Chester prof gives illustrated talk to FTA • Winter examination schedule • Dr. Miller, Dean Pancoast attend political science convention • Phys-Ed. group names officers • Alumni-society notes • In retrospect • Debate Club organizes for contest with Gettysburg • Red Cross drive nets $41 • Speedy PMC five trips Grizzlies, 60-48; Jayvees rack up 62-60 win in prelim • Court officials\u27 exam given • Bearettes face Albright in opening court game • Pharmacy quintet rallies to shade Grizzlies, 48-46 • Grapplers open Wednesday • Long lads get short end of basketball tusslehttps://digitalcommons.ursinus.edu/weekly/3125/thumbnail.jp

The Ursinus Weekly, November 17, 1947

Glee Club concert to feature diverse program of choral, instrumental music • Bob Shebley\u27s band scheduled to perform for senior prom • Dr. Miller addresses Ursinus IRC on topic of Argentine fascism • Aspects of communism presented at Y forum by U. of P. professor • Attendants chosen for May Day court • Curtain Club\u27s play cast is completed • Handel\u27s Messiah to be presented here with chorus of 118 and three soloists • Veterans discuss PCA riot; plan for dance December 3 • Alumni join in pep rally to launch Old Timers\u27 Day • Delta Tau to make theater trip • Educational film to be presented Wednesday • Local IRC officers attend Middle Atlantic assembly • Fireside chats to be held at faculty members\u27 homes • Invitations issued to universities for collegiate bridge tourney • German Club to hear Dr. Rice • 1948 May queen • Loss of all-American Simons to deal severe blow to 1948 soccer squad • Cage mentor Seeders foresees rosy season • Lehigh victor, 2-1, over bruin booters • Brewers bottle up Curtis attack in play-off to win league title • Hockey team sinks Bryn Mawr varsity; Moyer, Harting star • F & M tops bears, 27-0, scoring four touchdowns • Hockey varsity faces loss of six veterans • Soccer team racks up initial triumph; alumni whitewashed, 6-0, in annual tilt • Harriers overwhelmed in debut; Shaw paces informal bear squad • Penn defeats hockey third team • School maintenance forces will move to new building • Beardwood society to hear baking industry discussedhttps://digitalcommons.ursinus.edu/weekly/1627/thumbnail.jp

The Ursinus Weekly, December 6, 1948

Who\u27s Who honors thirteen seniors • Seniors to present year\u27s first formal at local ballroom • Students picked to represent Ursinus in annual edition of campus leaders • Outstanding artists featured Thursday in annual Messiah • Sociology studies confirm results of CORE racial poll • Students of Ursinus place small value on peace of world • Four IRC members visit State College • Annex gets number one stooper rating • Performance of Uncle Harry outstanding • Ursinus students selected to appear in annual Who\u27s Who • Don Young tops bruins in all statistics; prize back selected Player of the year • Frosh grid squad mangles sophs 13-0 on two long runs • JVs extend streak; Penn defeated 3-0 • Last period tally gives Penn lassies victory over belles • U.C. football squad gains easy victory in battle on court • Grunt and groaners show much talent as practice begins • Court campaign to open Wednesday • Temple pathologist to discuss cancer • Omwake assists in preparation of University Business Administration manual • Dr. Armstrong completes book as part of church history serieshttps://digitalcommons.ursinus.edu/weekly/1603/thumbnail.jp

The Ursinus Weekly, January 17, 1949

Lauterbach to address February student forum • Ron Landes selected assistant grid coach • Lorelei will retain turnabout custom, say student voters • Rosicrucian society honors thirty girls at Hobson Hall tea • Variety of careers chosen by eighteen semester graduates • Wednesday deadline made by publishers for Ruby material • President\u27s budget, Secretary of State top news of week • Men\u27s council ends work for semester in lengthy session • Which beauty will reign at May festivities? • Flood strikes Ursinus; run for your lives! • Campus cut-up waves bon voyage • Sportsmanship • Single tally downs bears at Delaware; final score, 49-48 • Belles rout Albright 44-27 in opening tilt of season • League lead fixed after Cadets\u27 loss to little Quakers • Bruin Quintet bows 70-48 to superb Garnet squad • Maxwell Club fete attended by Young • Wins prove scarce as cubs drop twohttps://digitalcommons.ursinus.edu/weekly/1606/thumbnail.jp

Measurement of B(t->Wb)/B(t->Wq) at the Collider Detector at Fermilab

We present a measurement of the ratio of top-quark branching fractions R= B(t -> Wb)/B(t -> Wq), where q can be a b, s or a d quark, using lepton-plus-jets and dilepton data sets with integrated luminosity of ~162 pb^{-1} collected with the Collider Detector at Fermilab during Run II of the Tevatron. The measurement is derived from the relative numbers of t-tbar events with different multiplicity of identified secondary vertices. We set a lower limit of R > 0.61 at 95% confidence level.Comment: 7 pages, 2 figures, published in Physical Review Letters; changes made to be consistent with published versio

Measurement of the Lifetime Difference Between B_s Mass Eigenstates

We present measurements of the lifetimes and polarization amplitudes for B_s --> J/psi phi and B_d --> J/psi K*0 decays. Lifetimes of the heavy (H) and light (L) mass eigenstates in the B_s system are separately measured for the first time by determining the relative contributions of amplitudes with definite CP as a function of the decay time. Using 203 +/- 15 B_s decays, we obtain tau_L = (1.05 +{0.16}/-{0.13} +/- 0.02) ps and tau_H = (2.07 +{0.58}/-{0.46} +/- 0.03) ps. Expressed in terms of the difference DeltaGamma_s and average Gamma_s, of the decay rates of the two eigenstates, the results are DeltaGamma_s/Gamma_s = (65 +{25}/-{33} +/- 1)%, and DeltaGamma_s = (0.47 +{0.19}/-{0.24} +/- 0.01) inverse ps.Comment: 8 pages, 3 figures, 2 tables; as published in Physical Review Letters on 16 March 2005; revisions are for length and typesetting only, no changes in results or conclusion

Measurement of WγW\gamma and ZγZ\gamma Production in ppˉp\bar{p} Collisions at s\sqrt{s} = 1.96 TeV

The Standard Model predictions for $W\gamma$ and $Z\gamma$ production are tested using an integrated luminosity of 200 pb$^{-1}$ of \ppbar collision data collected at the Collider Detector at Fermilab. The cross sections are measured selecting leptonic decays of the $W$ and $Z$ bosons, and photons with transverse energy $E_T>7$ GeV that are well separated from leptons. The production cross sections and kinematic distributions for the $W\gamma$ and $Z\gamma$ are compared to SM predictions.Comment: 7 pages, 4 figures, submitted to PR

Search for ZZ and ZW Production in ppbar Collisions at sqrt(s) = 1.96 TeV

We present a search for ZZ and ZW vector boson pair production in ppbar collisions at sqrt(s) = 1.96 TeV using the leptonic decay channels ZZ --> ll nu nu, ZZ --> l l l' l' and ZW --> l l l' nu. In a data sample corresponding to an integrated luminosity of 194 pb-1 collected with the Collider Detector at Fermilab, 3 candidate events are found with an expected background of 1.0 +/- 0.2 events. We set a 95% confidence level upper limit of 15.2 pb on the cross section for ZZ plus ZW production, compared to the standard model prediction of 5.0 +/- 0.4 pb.Comment: 7 pages, 2 figures. This version is accepted for publication by Phys. Rev. D Rapid Communication

Measurement of the Cross Section for Prompt Diphoton Production in p-pbar Collisions at sqrt(s) = 1.96 TeV

We report a measurement of the rate of prompt diphoton production in $p\bar{p}$ collisions at $\sqrt{s}=1.96 ~\hbox{TeV}$ using a data sample of 207 pb$^{-1}$ collected with the upgraded Collider Detector at Fermilab (CDF II). The background from non-prompt sources is determined using a statistical method based on differences in the electromagnetic showers. The cross section is measured as a function of the diphoton mass, the transverse momentum of the diphoton system, and the azimuthal angle between the two photons and is found to be consistent with perturbative QCD predictions.Comment: 7 pages, 3 figures,revtex4. Version accepted by PRL, but with cross section tables i

Measurement of the ttbar Production Cross Section in ppbar Collisions at sqrt{s}=1.96 TeV using Lepton + Jets Events with Secondary Vertex b-tagging

We present a measurement of the ttbar production cross section using events with one charged lepton and jets from ppbar collisions at a center-of-mass energy of 1.96 TeV. In these events, heavy flavor quarks from top quark decay are identified with a secondary vertex tagging algorithm. From 162 pb-1 of data collected by the Collider Detector at Fermilab, a total of 48 candidate events are selected, where 13.5 +- 1.8 events are expected from background contributions. We measure a ttbar production cross section of 5.6^{+1.2}_{-1.1} (stat.) ^{+0.9}_{0.6} (syst.) pb.Comment: 28 pages, 20 figures. Published in Physical Review