We present a search for a neutral, long-lived particle L that is produced in e + e − collisions and decays at a significant distance from the e + e − interaction point into various flavor combinations of two oppositely charged tracks. The analysis uses an e + e − data sample with a luminosity of 489.1 fb − 1 collected by the BABAR detector at the Υ ( 4 S ) , Υ ( 3 S ) , and Υ ( 2 S ) resonances and just below the Υ ( 4 S ) . Fitting the two-track mass distribution in search of a signal peak, we do not observe a significant signal, and set 90% confidence level upper limits on the product of the L production cross section, branching fraction, and reconstruction efficiency for six possible two-body L decay modes as a function of the L mass...
We present some recent measurements for the search of New Physics using 514 fb−1 of e+e− collisions ...
Abstract: Long-lived particles decaying to e±μ∓ν, with masses between 7 and 50GeV/c2 and lifetimes b...
Long-lived particles decaying to e(+/-) mu(-/+)nu, with masses between 7 and 50 GeV/c(2) and lifetim...
We present a search for a neutral, long-lived particle L that is produced in e+e− collisions and dec...
7 pages, 3 postscript figures, submitted to PRL - See paper for full list of authorsInternational au...
We present a search for a neutral, long-lived particle L that is produced in e∧+e∧- collisions and d...
We present a search for a neutral, long-lived particle L that is produced in e∧+e∧- collisions and d...
We present a search for a neutral, long-lived particle L that is produced in e+ e- collisions and de...
We present a search for a neutral, long-lived particle L that is produced in e∧{+}e∧{-} collisions a...
We present a search for a neutral, long-lived particle L that is produced in e[superscript +]e[super...
Long-lived particles decaying to e(+/-) mu(-/+)nu, with masses between 7 and 50 GeV/c(2) and lifetim...
Long-lived particles decaying to e±μ∓νe±μ∓ν, with masses between 7 and 50GeV/c250GeV/c2 and lifetime...
We present some recent measurements for the search of New Physics using 514 fb−1 of e+e− collisions ...
Abstract: Long-lived particles decaying to e±μ∓ν, with masses between 7 and 50GeV/c2 and lifetimes b...
Long-lived particles decaying to e(+/-) mu(-/+)nu, with masses between 7 and 50 GeV/c(2) and lifetim...
We present a search for a neutral, long-lived particle L that is produced in e+e− collisions and dec...
7 pages, 3 postscript figures, submitted to PRL - See paper for full list of authorsInternational au...
We present a search for a neutral, long-lived particle L that is produced in e∧+e∧- collisions and d...
We present a search for a neutral, long-lived particle L that is produced in e∧+e∧- collisions and d...
We present a search for a neutral, long-lived particle L that is produced in e+ e- collisions and de...
We present a search for a neutral, long-lived particle L that is produced in e∧{+}e∧{-} collisions a...
We present a search for a neutral, long-lived particle L that is produced in e[superscript +]e[super...
Long-lived particles decaying to e(+/-) mu(-/+)nu, with masses between 7 and 50 GeV/c(2) and lifetim...
Long-lived particles decaying to e±μ∓νe±μ∓ν, with masses between 7 and 50GeV/c250GeV/c2 and lifetime...
We present some recent measurements for the search of New Physics using 514 fb−1 of e+e− collisions ...
Abstract: Long-lived particles decaying to e±μ∓ν, with masses between 7 and 50GeV/c2 and lifetimes b...
Long-lived particles decaying to e(+/-) mu(-/+)nu, with masses between 7 and 50 GeV/c(2) and lifetim...