Lifetimes of some $b$-flavored hadrons

Abstract

Recent measurements of lifetimes of some $b$-flavored hadrons are presented and interpreted in the context of theoretical models, especially the Heavy Quark Expansion. Decay widths and decay width differences in the $B_s^0-{\overline{B}}_s^0$ system are discussed from studies of decays into the final states $J/\psi K^{+}{K}^{-}$, $J/\psi {\pi }^{+}{\pi }^{-}$, $D_s^{+}{D}_s^{-}$, $K^{+}{K}^{-}$, and $D_s^{\pm }{\pi }^{\mp }$. Lifetime measurements of the baryons ${\Lambda }_b^0$, ${\Xi }_b^{-}$, ${\Xi }_b^0$, and ${\Omega }_b^{-}$ are also shown.

Presented at 2014 Flavor Physics and CP Violation (FPCP-2014) Marselle, France, May 26-30, 2014;19 pages, 17 figures, to appear in the proceedings

References in corpus (7)

• The CKM Matrix and the Unitarity Triangle
• Measurement of the resonant and CP components in ${\overline{B}}^0\to J/\psi {\pi }^{+}{\pi }^{-}$ decays
• Mass and lifetime measurements of bottom and charm baryons in $p\bar{p}$ collisions at $\sqrt{s}= 1.96 TeV
• Measurement of b hadron lifetimes in exclusive decays containing a J/psi in p-pbar collisions at sqrt(s)=1.96TeV
• Measurement of the Lambda_b^0 lifetime in the exclusive decay Lambda_b^0 -> J/psi Lambda^0 in ppbar collisions at sqrt(s)=1.96 TeV
• Measurement of the Bs effective lifetime in the J/psi f0(980) final state
• Measurement of the ${\Xi }_b^{-}$ and ${\Omega }_b^{-}$ baryon lifetimes

Cited by in corpus (4)

• Baryons with two heavy quarks: Masses, production, decays, and detection
• Precision measurement of the mass and lifetime of the ${\Xi }_b^0$ baryon
• CP violation in the B system
• The decays ${\Xi }_b\to {\Lambda }_b\pi$ and diquark correlations in hyperons