Sin 2β Research Articles

B PHYSICS AND CP VIOLATION STUDIES WITH THE CMS DETECTOR AT LHC

In this paper we evaluate the potential of the CMS detector for the measurement of CP violation in the B system at the initial low luminosity of LHC (~1033 cm −2 s −1). The sensitivity to the unitarity triangle angle β obtained from the [Formula: see text] channel is given by δ ( sin 2β) = 0.046, whilst the sensitivity to a from the [Formula: see text] channel is given by δ ( sin 2α) = 0.082. We also discuss the possibilities of observing semi-inclusive B → μ + D(s) final states, to measure [Formula: see text] oscillations and to observe some B baryon modes.

Prospects for CP Violation at Hadron Colliders

Prospects for CP Violation at hadron colliders is discussed. B -Physics initiatives at CERN, Fermilab and DESY are underway. These efforts represent a significant challenge to the e + e − B -factories at KEK and SLAC as well as a complimentary program that studies B s , B c mesons, B -baryons and rare B -decays. results from CDF indicate the prospects for observing CP violation this decade at Fermilab in the decay B → J / φ K S is quit plausible. Tests of contributions to CP violation from beyond the CKM matrix will be possible by CDF with the decay mode B s → J / ψφ . A brief overview is presented with emphasis on the CDF exclusive B -decays to J / ψ and future plans. A performance comparison is made for sin 2β of the unitarity triangle.

Prospects for CP violation at hadron colliders

Prospects for CP Violation at hadron colliders is discussed. B-Physics initiatives at CERN, Fermilab and DESY are underway. These efforts represent a significant challenge to the e + e − B-factories at KEK and SLAC as well as a complimentary program that studies B s , B c mesons, B-baryons and rare B-decays. results from CDF indicate the prospects for observing CP violation this decade at Fermilab in the decay B → J/ φ K S is quit plausible. Tests of contributions to CP violation from beyond the CKM matrix will be possible by CDF with the decay mode B s → J/ ψφ. A brief overview is presented with emphasis on the CDF exclusive B-decays to J/ ψ and future plans. A performance comparison is made for sin 2β of the unitarity triangle.

Diffraction paramagnetique des neutrons par les ions de terres rares

In this paper the paramagnetic scattering of neutrons by rare earth ions is studied. By using a method proposed by G.T. T rammel the crystalline field effects are taken into account. A means of direct determination is then proposed for the level splittings of the ions. Experiments by W.C. K oehler and E.O. W ollan are discussed, also the validity of the law I ∼ sin 2β (where β is the angle between the scattering vector and the magnetic moments) is examined.