L. Li

Observation of Multiplicity Dependent Prompt χc1(3872) and ψ(2S) Production in pp Collisions

R. Aaij, C. Abellán Beteta, T. Ackernley, B. Adeva et autres

The production of χ_{c1}(3872) and ψ(2S) hadrons is studied as a function of charged particle multiplicity in pp collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2 fb^{-1}. For both states, the fraction that is produced …

nl, ch, gb, es, fr, us, it, de, ru, br, pl, cn (code pays fourni par la source)

Search for top quark decays $t \to qH$, with $H \to\gamma\gamma$, in $ \sqrt{s}$ = 13 TeV pp collisions using the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, O. Abdinov et autres

Measurement of the ratio of branching fractions B(B0→K*0γ)/B(Bs0→ϕγ)

R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi et autres

The ratio of branching fractions of the radiative $B$ decays ${B}^{0}\ensuremath{\rightarrow}{K}^{*0}\ensuremath{\gamma}$ and ${B}^{0}s\ensuremath{\rightarrow}\ensuremath{\phi}\ensuremath{\gamma}$ has been measured using $0.37\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of $pp$ collisions at a center of mass energy of $\sqrt{s}=7\text{ }\text{ }\mathrm{TeV}$, collected by the LHCb experiment. The value obtained is …

Measurement of b hadron production fractions in 7 TeV pp collisions

R. Aaji, C. Abellán Beteta, B. Adeva, M. Adinolfi et autres

Measurements of $b$ hadron production ratios in proton-proton collisions at a center-of-mass energy of 7 TeV with an integrated luminosity of $3\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ are presented. We study the ratios of strange $B$ meson to light $B$ meson production ${f}_{s}/({f}_{u}+{f}_{d})$ and ${\ensuremath{\Lambda}}_{b}^{0}$ …

nl, es, gb, fr, ch, ru, it, br, de, us, ie, ro (code pays fourni par la source)

Measurements of the rare decays $B \to K \ell^{+} \ell^{-}$ and $B \to K^{*} \ell^{+} \ell^{-}$

B. Aubert, R. Barate, D. Boutigny, F. Couderc et autres

23 pages, 12 postscript figues, contributed to Lepton-Photon 2005