Measurement of γγ widths of charmonium states

Autor: N. Katayama, P. Wilson, D. L. Hartill, R. Poling, R. Fulton, B. Gittlman, A. Silverman, W. M. Yao, D. L. Kreinick, E. Nordberg, C. O'Grady, H. Kagan, G. C. Moneti, M. S. Alam, Tomasz Skwarnicki, F. Morrow, E. I. Shibata, A. J. Sadoff, K. Sparks, Themistocles Bowcock, V. Jain, C. R. Ng, M. Procario, W. C. Li, M. Thulasidas, C. H. Park, John Yelton, Daniela Bortoletto, Marina Artuso, T. Jensen, R. L. McIlwain, D. M. Coffman, H. Worden, N. B. Mistry, L. Garren, B. K. Heltsley, S. W. Gray, J. W. Dewire, M. Pisharody, Karl Berkelman, Elliott Cheu, Glen D. Crawford, V. Sharma, R. Ehrlich, M. Sapper, J. Whitmore, N. Horwitz, Chunjie Wang, J. Kandaswamy, R. Ammar, D. Perticone, P. N. Wang, P. Haas, James Mueller, D. Peterson, Philip Baringer, D. R. Johnson, A. Jawahery, D. Xiao, D. Besson, E. H. Thorndike, F. M. Pipkin, D. Coppage, P.S. Dell, S. E. Csorna, M. I. Zoeller, K. Kinoshita, R. Namjoshi, T. Letson, D. H. Miller, Ha Lam, J. D. Lewis, C. Bebek, W. Y. Chen, C. R. Sun, R. D. Kass, M. Goldberg, A. M. Halling, M. Worris, J. Wolinski, D. Riley, Sheldon Stone, Xinchou Lou, S. F. Schaffner, Paul Avery, M. Hempstead, Yuichi Kubota, Richard Wilson, D. G. Cassel, James Alexander, S. Nandi, J. K. Nelson, M. D. Mestayer, I. J. Kim, R. S. Galik, Ian Shipsey

Publikováno v: Chen, WY; McIlwain, RL; Miller, DH; Ng, CR; Schaffner, SF; Shibata, EI; et al.(1990). Measurement of γγ widths of charmonium states. Physics Letters B, 243(1-2), 169-174. doi: 10.1016/0370-2693(90)90975-C. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/99h6f86r
Physics Letters B, vol 243, iss 1-2

Using the CLEO detector at the Cornell Electron Storage Ring, we have searched for two-photon production of charmonium in four-track final states. We have measured Γ γγ ( η c )=5.9 +2.1 −1.8 ±1.9 keV, and we have obtained 95% CL upper limits o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc5c3088842cfe79b9e4acbc835b3640
https://doi.org/10.1016/0370-2693(90)90975-c

The Automated Spectrometric Oil Analysis Decision Taking Procedure as a Tool to Prevent Aircraft Engine Failures

Autor: P.S. Dellis

Publikováno v: Tribology in Industry, Vol 41, Iss 2, Pp 292-309 (2019)

The purpose of spectrometric oil analysis is: – To diagnose imminent wear inside engine assemblies so that possible failures can be avoided, – To forecast and evaluate acquired data statistics regarding the operation of engine assemblies under

Externí odkaz: https://doaj.org/article/9b3bf57249ed4cf5bb20aa199cccbc60

An Attempt to Calibrate the Laser Induced Fluorescence (LIF) Signal used for Oil Film Thickness (OFT) Measurements in Simulating Test Rigs

Autor: P.S. Dellis

Publikováno v: Tribology in Industry, Vol 37, Iss 4, Pp 525-538 (2015)

The issue of laser induced fluorescence calibration for engine and simulating rigs was studied using both a static calibration rig and a dynamic method involving a modified piston-ring specimen. The technique used to measure oil film thickness was la

Externí odkaz: https://doaj.org/article/49bf04588c8b412787710c01d84f896a