Measurement of $b$ hadron masses in exclusive $J/ψ$ decays with the CDF detector

Physics – High Energy Physics – High Energy Physics - Experiment

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

10.1103/PhysRevLett.96.202001

We measure the masses of $b$ hadrons in exclusively reconstructed final states containing a $J/\psi\to\mu^-\mu^+$ decay using $\rm 220 pb^{-1}$ of data collected by the CDF II experiment. We find: m(B^+) = 5279.10 \pm 0.41_{(stat.)} \pm 0.36_{(sys.)} MeVcc, m(B^0) = 5279.63 \pm 0.53_{(stat.)} \pm 0.33_{(sys.)} MeVcc, m(B^0_s) = 5366.01 \pm 0.73_{(stat.)} \pm 0.33_{(sys.)} MeVcc, m(\Lambda^0_b) = 5619.7 \pm 1.2_{(stat.)} \pm 1.2_{(sys.)} MeVcc. m(B^+) - m(B^0) = -0.53 \pm 0.67_{(stat.)} \pm 0.14_{(sys.)} MeVcc, m(B^0_s) - m(B^0) = 86.38 \pm 0.90_{(stat.)} \pm 0.06_{(sys.)} MeVcc m(\Lambda^0_b) - m(B^0) = 339.2 \pm 1.4_{(stat.)} \pm 0.1_{(sys.)} MeVcc. The measurements of the $B^0_s$, $\Lambda^0_b$ mass, $m(B^0_s)-m(B^0)$ and $m(\Lambda^0_b)-m(B^0)$ mass difference are of better precision than the current world averages.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Measurement of $b$ hadron masses in exclusive $J/ψ$ decays with the CDF detector does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurement of $b$ hadron masses in exclusive $J/ψ$ decays with the CDF detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of $b$ hadron masses in exclusive $J/ψ$ decays with the CDF detector will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-576666

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.