Near-thresholdp¯pinvariant mass spectrum measured inJ/ψandψ′decays
نویسندگان
چکیده
منابع مشابه
The Power Spectrum of Mass Fluctuations Measured from the Lyman-alpha Forest at Redshift Z=2.5
We measure the linear power spectrum of mass density fluctuations at redshift z = 2.5 from the Lyα forest absorption in a sample of 19 QSO spectra, using the method introduced by Croft et al. (1998). The P (k) measurement covers the range 2π/k ∼ 450 − 2350 km s (2 − 12 comoving hMpc for Ω = 1), limited on the upper end by uncertainty in fitting the unabsorbed QSO continuum and on the lower end ...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2015
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.91.074003