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Toward a precise measurement of matter clustering: Ly alpha forest data at redshifts 2-4
absorption lines large scale structure of universe
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2014/12/26
We measure the filling factor, correlation function, and power spectrum of transmitted flux in a large sample of Lyα forest spectra, comprised of 30 Keck HIRES spectra and 23 Keck LRIS spectra. We inf...
Precise measurement of the e+e－→π+π－(γ) cross section with the initial state radiation method at BABAR
pion form factor ISR g-2 BABAR
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2010/5/7
We present a precise BABAR measurement on the cross section of the process e+e－→π+π－(γ) from threshold to an energy of 3 GeV with the initial state radiation (ISR) technique, using 232 fb－1 of data co...