2,994,695 research outputs found
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
D. J. Jones, approximately 1860s
No full textCarte-de-visite portrait of D. J. Jones, probably from the 1860s.Part of a small collection of photographs in the Alden Partridge Records, possibly from a dissembled photograph album of family and friends, belonging to Henry Villiers Partridge
Search for J/ψ weak decays containing a D meson
No full textUsing a sample of about 10 billion J/ψ events with the BESIII detector, we search for the weak decays of J/ψ→D ̄0π0+c.c., J/ψ→D ̄0η+c.c., J/ψ→D ̄0ρ0+c.c., J/ψ→D-π++c.c., and J/ψ→D-ρ++c.c.. Since no significant signal is observed, we set the upper limits of the branching fractions of these decays to be B(J/ψ→D ̄0π0+c.c.)<4.7×10-7, B(J/ψ→D ̄0η+c.c.)<6.8×10-7, B(J/ψ→D ̄0ρ0+c.c.)<5.2×10-7, B(J/ψ→D-π++c.c.)<7.0×10-8, and B(J/ψ→D-ρ++c.c.)<6.0×10-7 at the 90% confidence level
[Report to W. F. Dyson by L. D. Stringfellow and J. F. Brumit #2]
No full textReport to Captain W. F. Dyson by L. D. Stringfellow and J. F. Brumit. The report states that Marguerite C. Oswald refused to give an interview to men who came to her door
[Report to W. F. Dyson by L. D. Stringfellow and J. F. Brumit #1]
No full textReport to Captain W. F. Dyson by L. D. Stringfellow and J. F. Brumit of the Dallas Police Department. The report states that Marguerite C. Oswald refused to give an interview to men who came to her door
[Telegram to Jack Ruby from J. D. Harrison, November 24, 1963 #2]
No full textTelegram by J. D. Harrison to Jack Ruby sending him $5.00 to provide for his legal defense
Measurement of the B0–B0 oscillation frequency Δmd with the decays B0→D−π+ and B0→ J/ψK∗0
No full textThe B
0
–B
0
oscillation frequency Δmd is measured by the LHCb experiment using a dataset corresponding
to an integrated luminosity of 1.0 fb−1
of proton–proton collisions at √
s = 7 TeV, and is found to be
Δmd
=0.5156±0.0051 (stat.)±0.0033 (syst.) ps−1
. The measurement is based on results from analyses
of the decays B
0
→ D
−π
+ (D
−
→ K
+π
−π
−) and B
0
→ J/ψK
∗0
(J/ψ →μ
+μ
−,K
∗0
→ K
+π
−) and
their charge conjugated modes
[Telegram to Jack Ruby from J. D. Harrison, November 24, 1963 #1]
No full textTelegram by J. D. Harrison to Jack Ruby sending him $5.00 to provide for his legal defense
J. D. Allnoch
No full textPhotograph of J. D. Allnoch, as a young child. J. D. Allnoch is the son of Fred J. Allnoch and Rebecca (Mitchell) Allnoch. He is the grandson of J. D. Mitchell
R. J. Linto and D. M. Gooch
No full text"[WX35280 R. J. Linto] 22nd Heavy A/A Battery Darwin WX39893 D. M. Gooch 22nd Heavy A/A Battery Darwin."[WX35280 R. J. Linto] 22nd Heavy Anti Aircraft Battery Darwin. WX39893 D. M. Gooch 22nd Heavy Anti Aircraft Battery Darwin
- …
