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Skarha, J.E.
Wisconsin Univ., Madison, WI (USA)1989
Wisconsin Univ., Madison, WI (USA)1989
AbstractAbstract
[en] Results of the analysis of forward-produced (1.95 < | η | < 2.80) muons from bar pp collisions at √s = 1.8 TeV are presented. The data sample was collected during the 1987 run of the CDF detector at the Fermilab Tevatron collider and corresponds to an integrated luminosity of 0.80 nb-1. The inclusive forward muon pT spectrum is measured and compared to backgrounds. Several muon + jet events, consistent with the weak decay of the bottom quark, were found. In addition, from a larger data sample of 24.2 nb-1, a candidate event for the first observation at √s = 1.8 TeV of the process Z degree → μ+μ- was discovered, where Z degree is the uncharged mediator of the weak interaction
Primary Subject
Source
1989; 287 p; Univ. of Wisconsin; Madison, WI (USA); University Microfilms, PO Box 1764, Ann Arbor, MI 48106, Order No.89-23,400; Thesis (Ph. D.).
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
Country of publication
ACCELERATORS, BARYON-BARYON INTERACTIONS, BOSONS, CYCLIC ACCELERATORS, DECAY, ELEMENTARY PARTICLES, ENERGY RANGE, EVALUATION, FERMIONS, HADRON-HADRON INTERACTIONS, INTERACTIONS, INTERMEDIATE BOSONS, INTERMEDIATE VECTOR BOSONS, LEPTONS, LINEAR MOMENTUM, PARTICLE DECAY, PARTICLE INTERACTIONS, POSTULATED PARTICLES, SYNCHROTRONS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Skarha, J.E.
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE, Washington, DC (United States)1995
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE, Washington, DC (United States)1995
AbstractAbstract
[en] The authors present recent CDF results on B lifetimes, B meson mass measurements, ratios of branching ratios, and rare decays. In addition, they present the first measurement of time-dependent Bd mixing at CDF. Several results have been updated and a few new ones included since the workshop
Primary Subject
Secondary Subject
Source
May 1995; 15 p; LISHEP 95: workshop on heavy flavor physics; Rio de Janeiro, RJ (Brazil); 20-22 Feb 1995; CONF-9502116--1; CONTRACT AC02-76CH03000; Also available from OSTI as DE95015167; NTIS; US Govt. Printing Office Dep
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Skarha, J.E.
Fermi National Accelerator Lab., Batavia, IL (United States); CDF Collaboration. Funding organisation: USDOE, Washington, DC (United States)1994
Fermi National Accelerator Lab., Batavia, IL (United States); CDF Collaboration. Funding organisation: USDOE, Washington, DC (United States)1994
AbstractAbstract
[en] Measurements of the Bu, Bd, and Bs meson lifetime using semileptonic BU → eνD* X, Bs → lνDsX events and exclusive Bu → ψ(')K(s)(*)Bs → ψφ events are presented. These results used the precise position measurements of the CDF SVX silicon vertex detector and were obtained from a 19.3 pb-1 sample of 1.8 TeV bar pp collisions collected in 1992--93 at the Fermilab Tevatron collider. Comparisons with previous measurements will be shown
Primary Subject
Source
Aug 1994; 8 p; Meeting of the Division of Particles and Fields of the American Physical Society; Albuquerque, NM (United States); 2-6 Aug 1994; CONF-940816--23; CONTRACT AC02-76CH03000; Also available from OSTI as DE95000564; NTIS; US Govt. Printing Office Dep
Record Type
Report
Literature Type
Conference; Numerical Data
Report Number
Country of publication
BARYON-BARYON INTERACTIONS, BEAUTY PARTICLES, BOSONS, CHARM PARTICLES, CHARMED MESONS, DATA, DECAY, ELEMENTARY PARTICLES, HADRON-HADRON INTERACTIONS, HADRONS, INFORMATION, INTERACTIONS, MEASURING INSTRUMENTS, MESONS, NUCLEON-ANTINUCLEON INTERACTIONS, NUMERICAL DATA, PARTICLE DECAY, PARTICLE INTERACTIONS, PSEUDOSCALAR MESONS, RADIATION DETECTORS, SEMICONDUCTOR DETECTORS, SPECTRA, WEAK PARTICLE DECAY
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Skarha, J.E.
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE, Washington, DC (United States)1994
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE, Washington, DC (United States)1994
AbstractAbstract
[en] A next generation silicon vertex detector is planned at CDF for the 1998 Tevatron collider run with the Main Injector. The SVX II silicon vertex detector will allow high luminosity data-taking, enable online triggering of secondary vertex production, and greatly increase the acceptance for heavy flavor physics at CDF. The design specifications, geometric layout, and early mechanical prototyping work for this detector are discussed
Secondary Subject
Source
Aug 1994; 6 p; Meeting of the Division of Particles and Fields of the American Physical Society; Albuquerque, NM (United States); 2-6 Aug 1994; CONF-940816--11; CONTRACT AC02-76CH03000; Also available from OSTI as DE94018985; NTIS; US Govt. Printing Office Dep
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Skarha, J.E.
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE, Washington, DC (United States)1993
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE, Washington, DC (United States)1993
AbstractAbstract
[en] The proposed CDF SVX II detector upgrade for secondary vertex detection during the Fermilab Tevatron Run II collider run is described. The general design and important features of this silicon vertex detector are presented. The CDF physics goals which are addressed by this detector are also given
Secondary Subject
Source
Oct 1993; 8 p; Workshop on physics at current accelerators and the supercollider; Argonne, IL (United States); 2-5 Jun 1993; CONF-9306176--17; CONTRACT AC02-76CH03000; Also available from OSTI as DE94003642; NTIS; US Govt. Printing Office Dep
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Skarha, J.E.
Fermi National Accelerator Lab., Batavia, IL (United States); CDF Collaboration. Funding organisation: USDOE, Washington, DC (United States)1994
Fermi National Accelerator Lab., Batavia, IL (United States); CDF Collaboration. Funding organisation: USDOE, Washington, DC (United States)1994
AbstractAbstract
[en] Measurements of the average b-hadron lifetime using inclusive B → J/ψX events, the individual Bu and Bd lifetimes and their ratio using exclusive B → ψK events, and the Bs lifetime using semileptonic Bs lifetime using semileptonic Bs → lνD3X events are presented. The results were obtained from a 21.3 pb-1 sample of √s = 1.8 TeV bar pp collisions collected in 1992--93 at the Fermilab Tevatron collider and required the precise position measurements of the recently installed CDF silicon vertex detector
Primary Subject
Source
Jan 1994; 11 p; 9. workshop on proton-antiproton collider physics; Tsukuba, Ibaraki (Japan); 18-22 Oct 1993; CONF-9310247--11; CONTRACT AC02-76CH03000; Also available from OSTI as DE94006850; NTIS; US Govt. Printing Office Dep
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
BARYON-BARYON INTERACTIONS, BEAUTY PARTICLES, BOSONS, CHARMONIUM, DECAY, ELEMENTARY PARTICLES, HADRON-HADRON INTERACTIONS, HADRONS, INTERACTIONS, MEASURING INSTRUMENTS, MESONS, NUCLEON-ANTINUCLEON INTERACTIONS, PARTICLE DECAY, PARTICLE INTERACTIONS, PSEUDOSCALAR MESONS, QUARKONIUM, RADIATION DETECTORS, VECTOR MESONS, WEAK PARTICLE DECAY
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The original design of the Collider Detector at Fermilab (CDF) was optimized for high pT physics measurements associated with W and Z boson, top quark, and QCD jet production. This choice resulted in an emphasis on the central pseudorapidity region (|η| < 1.0) for detector coverage. Thus, CDF has excellent tracking (ΔpT/pT = 0.0066 direct-sum 0.0014pt), good calorimetry, and a suitable muon system in the central region. Even with this limited coverage, the large bar pp → bX cross section of nearly 100 μbarns for |η| < 1.0 has allowed the CDF experiment to make many B physics measurements. In addition, with the successful operation of the CDF silicon vertex detector (SVX), the capability for making time-dependent Bs mixing measurements becomes a reality. Upgrade plans, which include extending the tracking and lepton identification into the forward region and the implementation of a high-rate DAQ system, make a time-dependent Bs mixing measurement an attractive goal during the anticipated high-luminosity Main Injector collider runs. The authors discuss here the feasibility and potential of making a Bs mixing measurement based on extrapolations of the current CDF detector performance using colliding beam data and the expected upgrade plans
Primary Subject
Secondary Subject
Source
McBride, P. (Superconducting Super Collider Lab., Dallas, TX (United States)); Mishra, C.S. (Fermi National Accelerator Lab., Batavia, IL (United States)) (eds.); Fermi National Accelerator Lab., Batavia, IL (United States); 765 p; 1993; p. 361-365; Workshop on B physics at hadron accelerators; Snowmass, CO (United States); 21 Jun - 2 Jul 1993; Also available from OSTI as DE94007961; NTIS
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
INIS IssueINIS Issue
Skarha, J.E.
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE, Washington, DC (United States)1993
Fermi National Accelerator Lab., Batavia, IL (United States). Funding organisation: USDOE, Washington, DC (United States)1993
AbstractAbstract
[en] The original design of the Collider Detector at Fermilab (CDF) was optimized for high pT physics measurements associated with W and Z boson, top quark, and QCD jet production. This choice resulted in an emphasis on the central pseudorapidity region (|η| < 1.0) for detector coverage. Thus, CDF has excellent tracking, good calorimetry, and a suitable muon system in the central region. Even with this limited coverage, the large bar pp → bX cross section of nearly 100 μbarns for |η| < 1.0 has allowed the CDF experiment to make many B physics measurements. In addition, with the successful operation of the CDF silicon vertex detector (SVX), the capability for making time-dependent Bs mixing measurements becomes a reality. Upgrade plans, which include extending the tracking and lepton identification into the forward region and the implementation of a high-rate DAQ system, make a time-dependent Bs mixing measurement an attractive goal during the anticipated high-luminosity Main Injector collider runs. We discuss here the feasibility and potential of making a Bs mixing measurement based on extrapolations of the current CDF detector performance using colliding beam data and the expected upgrade plans
Primary Subject
Secondary Subject
Source
Oct 1993; 8 p; Workshop on B physics at hadron accelerators; Snowmass, CO (United States); 21 Jun - 2 Jul 1993; CONF-9306258--15; CONTRACT AC02-76CH03000; Also available from OSTI as DE94013147; NTIS; US Govt. Printing Office Dep
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Ritchie, D.J.; Skarha, J.E.; Zieminski, A.
Proceedings of the workshop on B physics at hadron accelerators1993
Proceedings of the workshop on B physics at hadron accelerators1993
AbstractAbstract
[en] With the mixing parameter x defined as Δm/Γ for neutral B mesons, the ratio of the mixing parameters for the Bd and Bs mesons is given by: xd/xs = |Vtd/Vts|2(mBd/mBs)(τBd/τBs)(f2BdBd/(f2BsBs)). The value of xd is known to good precision (xd = 0.665 ± 0.088), and the ratio of theoretical form factors (f2BdBd/(f2BsBs)) should be calculated to 10%-20% accuracy within the next couple of years. THerefore, a measurement of xs can provide a precise measurement of the |Vtd/Vts| ratio. This information, coupled with the measurements of |Vub| and |Vcb| from CLEO, enables an independent determination of the CKM unitarity triangle through a measurement of its sides, rather than angles. Present estimates for quantities entering the presented equation, predict a value of xs within a range of 10 to 30 within the Standard Model
Primary Subject
Source
McBride, P. (Superconducting Super Collider Lab., Dallas, TX (United States)); Mishra, C.S. (Fermi National Accelerator Lab., Batavia, IL (United States)) (eds.); Fermi National Accelerator Lab., Batavia, IL (United States); 765 p; 1993; p. 357-359; Workshop on B physics at hadron accelerators; Snowmass, CO (United States); 21 Jun - 2 Jul 1993; Also available from OSTI as DE94007961; NTIS
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
Reference NumberReference Number
Related RecordRelated Record
INIS VolumeINIS Volume
INIS IssueINIS Issue
Skarha, J.E.; Barnett, B.; Boswell, C.; Matthews, J.; Snider, F.D.; Spies, A.; Tseng, J.; Vejcik, S.; Carter, H.; Flaugher, B.; Gonzales, B.; Hrycyk, M.; Nelson, C.; Segler, S.; Shaw, T.; Tipton, P.; Tkaczyk, S.; Turner, K.; Carithers, W.C.; Ely, R.; Gold, M.; Haber, C.; Holland, S.; Kleinfelder, S.; Merrick, T.; Schneider, O.; Wester, W.; Wong, M.; Amidei, D.; Derwent, P.F.; Bacchetta, N.; Bisello, D.; Busetto, G.; Castro, A.; Loreti, M.; Pescara, L.; Bedeschi, F.; Bolognesi, V.; Dell'Agnello, S.; Galeotti, S.; Mariotti, M.; Menzione, A.; Punzi, G.; Raffaelli, F.; Ristori, L.; Tartarelli, F.; Turini, N.; Wenzel, H.; Zetti, F.; Bailey, M.; Garfinkel, A.F.; Shaw, N.M.1992
AbstractAbstract
[en] The mechanical design and construction progress of the CDF silicon vertex detector is described. Results on the location accuracy of the silicon strip detectors are presented and indicate an initial placement uncertainty of less than 10 μm. The water and gas cooling system, which is constructed of low mass materials and is used to remove heat from the readout electronics, is briefly described. Measurements of the performance of the silicon strip detectors are also given and show >98.5% functioning strips for the assembled SVX detector. (orig.)
Source
5. Pisa meeting on advanced detectors: Frontier detectors for frontier physics; La Biodola, Elba (Italy); 26-31 May 1991
Record Type
Journal Article
Literature Type
Conference
Journal
Nuclear Instruments and Methods in Physics Research. Section A; ISSN 0168-9002; ; CODEN NIMAE; v. 315(1-3); p. 125-132
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue