7 research outputs found

    Measurement of CP observables in B-+/- -> DK +/- and B-+/- -> D pi(+/-) with D -> KS0<mml:msup>K +/-</mml:msup><mml:msup>pi -/+</mml:msup> decays

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    Measurements of CPCP observables in B±DK±B^\pm \to D K^\pm and B±Dπ±B^\pm \to D \pi^\pm decays are presented, where DD represents a superposition of D0D^0 and Dˉ0\bar{D}^0 states. The DD meson is reconstructed in the three-body final state KS0K±πK_{\rm{S}}^0K^\pm \pi^\mp. The analysis uses samples of BB mesons produced in proton-proton collisions, corresponding to an integrated luminosity of 1.0, 2.0, and 6.0 fb1^{-1} collected with the LHCb detector at centre-of-mass energies of s=\sqrt{s} = 7, 8, and 13 TeV, respectively. These measurements are the most precise to date, and provide important input for the determination of the CKM angle γ\gamma

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    Isomers in neutron-rich A approx 190 nuclides from 208Pb fragmentation

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    Relativistic projectile fragmentation of 208Pb has been used to produce isomers in neutron-rich, A appro 190 nuclides. A forward-focusing spectrometer provided ion-by-ion mass and charge identification. The detection of γ-rays emitted by stopped ions has led to the assignment of isomers in 188Ta, 190W, 192}Re, 193Re, 195Os, 197r, 198Ir, 200Pt, 201Pt, 202Pt and 203Au, with half-lives ranging from approximately 10 ns to 1 ms. Tentative isomer information has been found also for 174Er,175Er, 185Hf, 191Re, 194Re and 199Ir. In most cases, time-correlated, singles γ-ray events provided the first spectroscopic daa on excited states for each nuclide. In 200Pt and 201Pt, the assignments are supported by γ-γ coincidences. Isomeric ratios provide additional information, such as half-life and transition energy constraints in particular cases. The level structures of the platinum isotopes are discussed, and comparisons are made with isomer systematics

    Search for neutral Higgs boson in CP-conserving and CP-violating MSSM scenarios

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    PHOS Technical Design Report

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