6533b7d5fe1ef96bd12650b3

RESEARCH PRODUCT

Searching for $B_c$ mesons in the ATLAS experiment at LHC

J. A. VallsM. GaldónR. Pérez OchoaM. A. Sanchis-lozano

subject

PhysicsSemileptonic decayNuclear and High Energy PhysicsParticle physicsLarge Hadron ColliderMesonPhysics::Instrumentation and DetectorsATLAS experimentHigh Energy Physics::PhenomenologyFísicaFOS: Physical sciencesAtomic and Molecular Physics and OpticsLuminosityHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)High Energy Physics::ExperimentParticle Physics - Phenomenology

description

We discuss the feasibility of the observation of the signal from $B_c$ mesons in the ATLAS experiment at the LHC. In particular, we address the decay mode $B_c{\rightarrow}J/\psi \pi$ followed by the leptonic decay $J/\psi{\rightarrow}\mu^+\mu^-$, which should permit an accurate measurement of the $B_c$ mass. We performed a Monte Carlo study of the signal and background concluding that a precision of $\approx$ 1 MeV for the $B_c$ mass could be achieved after one year of running at $\lq\lq$low" luminosity. The semileptonic decay $B_c{\rightarrow}J/\psi\ {\mu}^+{\nu}_{\mu}$ is also considered for a possible extraction of ${\mid}V_{cb}{\mid}$.

10.1016/0920-5632(96)00407-0http://arxiv.org/abs/hep-ph/9510450