Zobrazeno 1 - 10
of 86
pro vyhledávání: '"J. Willins"'
Autor:
Marina Jabsky, Cynthia Kaplan, Jarrett Santorelli, Jacob Mathai, Reinaldo Figueroa, S. Ishkin, Cecilia Avila, J. Willins
Publikováno v:
Placenta. 35:1065-1069
Introduction In vitro studies on the structure of human fetal membranes have involved light or electron microscopy with fixation, dehydration, and staining. Recently, optical coherence tomography (OCT), an imaging technology, has provided high-resolu
Autor:
Paolo Franzini, Juliet Lee-Franzini, C. Yanagisawa, Meenakshi Narain, P. M. Tuts, D. M. J. Lovelock, R. D. Schamberger, U. Heintz, Q.W. Wu, J. Willins, S. Kanekal
Publikováno v:
Physics Letters B. 301:307-312
With the CUSB-II detector at CESR we have studied the processes γ (3S) → γ (1S) π + γ − and γ (3S) → γ (2S) π + π − , where the final state γ (1S or 2S) decays into a pair of leptons. We have found 451 γ (3S) → γ (1S) π + π −
Autor:
Anthony L. Zietman, B Nicholas, J Willins, R De Armas, H.M. Lu, H.F. Xiang, M Katz, Ariel E. Hirsch, J Kachnic, Muhammad M. Qureshi, S. Keohan, Jason A. Efstathiou
Publikováno v:
Medical Physics. 41:190-191
Purpose: To measure intrafractional prostate motion by time-based stereotactic x-ray imaging and investigate the impact on the accuracy and efficiency of prostate SBRT delivery. Methods: Prostate tracking log files with 1,892 x-ray image registration
Autor:
Meenakshi Narain, S. Kanekal, P. M. Tuts, C. Yanagisawa, Q.W. Wu, R. D. Schamberger, Paolo Franzini, J. Willins, Juliet Lee-Franzini, Ulrich Heintz, D. M. J. Lovelock
Publikováno v:
Physical Review D. 46:1928-1940
Using the CUSB-II detector at CESR we have observed electric dipole transitions between the {Upsilon} and {chi}{sub {ital b}} states, both in exclusive and inclusive channels. We have measured their branching ratios and find {ital B}({Upsilon}(3{ital
Publikováno v:
International Journal of Biological Macromolecules. 14:129-138
Collagen was dehydrothermally treated (heat cured) by heating dry under vacuum at 60, 80, 100 and 120 degrees C. The change in stability was determined by subjecting to measurement of gross crosslinking, content of lysino-alanine and naturally occurr
Autor:
J. Willins, Juliet Lee-Franzini, S. Kanekal, Paolo Franzini, Meenakshi Narain, P. M. Tuts, U. Heintz, R. D. Schamberger, C. Yanagisawa, Q.W. Wu
Publikováno v:
Physics Letters B. 273:177-180
Using the CUSB-II detector at CESR we have measured the B ∗ cross section in the energy range from s = 10.61–10.65 GeV and 10.70 GeV to be 0.16±0.03 nb and 0.33±0.13 nb respectively. The photon energy for B ∗ →Bγ decays is measured to be 4
Autor:
Pm Tuts, S. Kanekal, D. M. J. Lovelock, Paolo Franzini, Meenakshi Narain, Juliet Lee-Franzini, C. Yanagisawa, Q.W. Wu, U. Heintz, J. Willins, R. D. Schamberger
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 309:450-464
The design, construction and performance of a very compact precision electromagnetic spectrometer is described. The CUSB-II detector has been used to study ϒ spectroscopy, search for exotic particles and measure properties of the B and B ∗ mesons
Autor:
Paolo Franzini, U. Heintz, P. M. Tuts, R. D. Schamberger, D. M. J. Lovelock, J. Willins, Juliet Lee-Franzini, Q.W. Wu, S. Kanekal, Meenakshi Narain, C. Yanagisawa
Publikováno v:
Physical Review Letters. 66:3113-3116
Using the CUSB-II detector at the Cornell Electron Storage Ring, we have made precision measurements of the electric dipole transition rates from Y« to χ' b , which are in excellent agreement with theory. The fine-structure splitting is found to be
Autor:
J. Willins, R. D. Schamberger, C. Yanagisawa, Meenakshi Narain, U. Heintz, Juliet Lee-Franzini, Paolo Franzini, P. M. Tuts, D. M. J. Lovelock
Publikováno v:
Physical Review Letters. 66:2436-2439
{ital B}-meson semileptonic decay spectra have been obtained at the {Upsilon}(4{ital S}) and at the {Upsilon}(5{ital S}) at the Cornell Electron Storage Ring with the Columbia University--Stony Brook detector. The branching ratio for {ital B}{r arrow
Autor:
D. M. J. Lovelock, C. Yanagisawa, P. M. Tuts, R. D. Schamberger, Heintz, Paolo Franzini, Juliet Lee-Franzini, Meenakshi Narain, S. Kanekal, Q.W. Wu, T. Kaarsberg, J. Willins
Publikováno v:
Physical Review Letters. 66:1563-1566
We have studied the decay chain {Upsilon}{prime}{prime}{r arrow}{chi}{sub {ital b}}{sup {prime}}({chi}{sub {ital b}}){gamma} {r arrow}{Upsilon}{prime}({Upsilon}){gamma}{gamma}{r arrow}{mu}{mu}({ital ee}){gamma}{gamma} with the CUSB II detector at the