Since December 2010, the CMD-3 detector has collected data at the electronpositron collider VEPP-2000. The sample of the accumulated data corresponds to about 60 pb−1 of integrated luminosity in the ...c.m. energy from 0.32 up to 2 GeV. Preliminary results of the analysis of various processes e+e− annihilation to hadrons are presented. It is shown the processes with multihadron events have several intermediate states which must be taken into account to correctly describe the angular and invariant mass distributions as well as cross section dependence versus energy.
Full text
Available for:
IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
Overview of the CMD-3 recent results Ryzhenenkov, A E; Akhmetshin, R R; Amirkhanov, A N ...
Journal of physics. Conference series,
04/2020, Volume:
1526, Issue:
1
Journal Article
Peer reviewed
Open access
The CMD-3 detector started data taking at the electron-positron collider VEPP-2000 in December 2010 with a goal to collect about 1 fb−1. The collected data sample corresponds to an integrated ...luminosity of 200 pb−1 in the center-of-mass energy range from 0.32 up to 2 GeV. This paper reports recent results on the hadronic cross sections measurements with the CMD-3 detector.
The preliminary results of measurement of the
e
+
e
−
→ π
+
π
−
π
0
cross section in the 1.05–2 GeV center-of-mass energy range with 30 pb
–1
of experimental data collected using the CMD-3 detector ...are presented. The parameters of resonant states ω(1420) and ω(1650) are obtained.
Full text
Available for:
EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The process
e
+
e
−
→
K
+
K
−
π
0
has been studied in the center-of-mass energy range from 1.2 to 2 GeV using a 80.6 pb
−1
data sample collected with the CMD-3 detector at the electron-positron ...collider VEPP-2000. Preliminary results of the cross-section measurement are presented.
Full text
Available for:
IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
The cross section of the process e super(+)e super(-) arrow right 3( pi super(+) pi super(-))e+e- arrow right 3( pi + pi -) has been measured using a data sample of 22 pb super(-1)22 pb-1 collected ...with the CMD-3 detector at the VEPP-2000 e super(+)e super(-)e+e- collider. 7956 signal events are selected in the center-of-mass energy range 1.5-2.0 GeV. The measured cross section exhibits a sharp drop near the ppmacr threshold. A first study of dynamics of six-pion production has been performed.
Full text
Available for:
GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
We report preliminary results on the cross section of the process e
+
e
−
→ φ(1020)η measured at 30 center-of-mass energy points in the range from 1.59 up to 2.0 GeV. Data analysis is based on the ...integrated luminosity of 22 pb
−1
collected with the CMD-3 detector in 2011–2012. The obtained cross section agrees with the BaBar measurement and has better statistical accuracy.
Full text
Available for:
DOBA, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, IZUM, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, SIK, UILJ, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
We analyze the data on
e
+
e
−
collisions at c.m.s. energies between 0.32 and 2 GeV collected in 2011–2013 with the CMD3 detector operating at the VEPP-3
e
+
e
−
collider of the Budker Institute of ...Nuclear Physics. The data correspond to an integrated luminosity of nearly 60 pb
-1
. Preliminary results
e
+
e
−
→
K
+
K
−
n
π (
n
= 1, 2, 3) on the reactions with two charged kaons in the final state are presented, and the procedure for estimating the integrated luminosity for each energy setting is described.
Full text
Available for:
EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
The preliminary results of measurement of the e{sup +} e{sup −} → π{sup +}π{sup −}π{sup 0} cross section in the 1.05–2 GeV center-of-mass energy range with 30 pb{sup –1} of experimental data ...collected using the CMD-3 detector are presented. The parameters of resonant states ω(1420) and ω(1650) are obtained.
Full text
Available for:
EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
PDF
