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Search for Rare or Forbidden Decays of the D-0 Meson
(American Physical Society, 2020-02-19)
We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type
D
0
→
h
'
−
h
−
ℓ
'
+
ℓ
+
and
D
0
→
h
'
−
h
+
ℓ
'
±
ℓ
∓
, where
h
...
Precision Measurement of the Ratio B(gamma(3S) -> tau(+)tau(-))/B(gamma(3S) -> mu(+)mu(-))
(American Physical Society, 2020-12-08)
We report on a precision measurement of the ratio
R
Υ
(
3
S
)
τ
μ
=
B
(
Υ
(
3
S
)
→
τ
+
τ
−
)
/
B
(
Υ
(
3
S
)
→
μ
+
μ
−
)
using data collected with the BABAR detector at the SLAC PEP-II ...
Precision Measurement of the Ratio B(ϒ(3S)→τ^{+}τ^{-})/B(ϒ(3S)→μ^{+}μ^{-}).
(American Physical Society, 2020-12-11)
We report on a precision measurement of the ratio R_{τμ}^{ϒ(3S)}=B(ϒ(3S)→τ^{+}τ^{-})/B(ϒ(3S)→μ^{+}μ^{-}) using data collected with the BABAR detector at the SLAC PEP-II e^{+}e^{-} collider. The measurement is based on a ...
Study of the reactions e(+)e(-) -> 2(pi(+)pi(-))pi(0)pi(0)pi(0) and 2(pi(+)pi(-))pi(0)pi(0)eta at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation
(American Physical Society, 2021-05-06)
We study the processes
e
+
e
−
→
2
(
π
+
π
−
)
π
0
π
0
π
0
γ
and
2
(
π
+
π
−
)
π
0
π
0
η
γ
in which an energetic photon is radiated from the initial state. The data were collected with ...
Resonances in e(+) e(-) annihilation near 2.2 GeV
(2020-01-22)