Precise measurement of $\Gamma(K(s) \to \pi^+ \pi^- (\gamma)) / \Gamma(K(s) \to \pi^0 \pi^0$) with the KLOE detector at DAFNE - INSPIRE

DataBETA

Precise measurement of $\Gamma(K(s) \to \pi^+ \pi^- (\gamma)) / \Gamma(K(s) \to \pi^0 \pi^0$ ) with the KLOE detector at DAFNE

KLOE

Collaboration

•

F. Ambrosino
(
- INFN, Naples and
- Naples U.
)

Jan, 2006

18 pages

Published in:

Eur.Phys.J.C 48 (2006) 767-780

e-Print:

hep-ex/0601025 [hep-ex]

DOI:

10.1140/epjc/s10052-006-0021-9

PDG:

{{\mathit K}_S^0}

\rightarrow

{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}

Experiments:

FRASCATI-DAFNE-KLOE

View in:

ADS Abstract Service

reference search64 citations

Citations per year

Abstract: (arXiv)

Using a sample of over 400 million phi->KsKl decays produced during the years 2001 and 2002 at the DAFNE e+e- collider, the ratio R=Gamma(Ks->pi+pi-(g))/Gamma(Ks->pi0pi0) has been measured with the KLOE detector. The result is R=2.2555+-0.0012(stat)+-0.0021(syst-stat)+-0.0050(syst), which is in good agreement with the previously published result based on the KLOE data sample from the year 2000. The average of the KLOE results is R=2.2549+-0.0054, reducing the total error by a factor of three, to 0.25%.

Note:

13 pages, 13 figures, submitted to Eur. Phys. J. C

electron positron: colliding beams
electron positron: annihilation
Phi(1020): electroproduction
K0: pair production
K0(S): hadronic decay
pi: pair production
K0(S): branching ratio
KLOE
experimental results
Frascati Stor

References(11)

Figures(17)

K ---> pi pi phenomenology in the presence of electromagnetism

- Eur.Phys.J.C 18 (2000) 83-95
•
e-Print:
- hep-ph/0008290
•
DOI:
- 10.1007/s100520000530

Isospin breaking in K ---> pi pi decays

V. Cirigliano
(
- Valencia U. and
- Valencia U., IFIC and
- Caltech
)
,
G. Ecker
(
- Vienna U.
)
,
H. Neufeld
(
- Vienna U.
)
,
A. Pich
(
- Valencia U. and
- Valencia U., IFIC
)

- Eur.Phys.J.C 33 (2004) 369-396
•
e-Print:
- hep-ph/0310351
•
DOI:
- 10.1140/epjc/s2003-01579-3

Measurement of $\Gamma(K(S) \to \pi^+ \pi^- (\gamma)) / \Gamma(K(S) \to \pi^0 \pi^0)$

KLOE

Collaboration

•

A Aloisio
(
- INFN, Naples and
- Naples U.
)

et al.

- Phys.Lett.B 538 (2002) 21-26
•
e-Print:
- hep-ex/0204024
•
DOI:
- 10.1016/S0370-2693(02)01949-4

Review of particle physics. Particle Data Group

et al.

- Eur.Phys.J.C 15 (2000) 1-878

On the Phi ---> K0 anti-K0 gamma transition at a Phi factory

N. Paver
(
- Trieste U. and
- INFN, Trieste
)
,
Riazuddin
(
- KFUPM, Dhahran
)

- Phys.Lett.B 246 (1990) 240-244
•
DOI:
- 10.1016/0370-2693(90)91339-D

The tracking detector of the KLOE experiment

M Adinolfi
(
- INFN, Rome2 and
- Rome U., Tor Vergata
)
,
F Ambrosino
(
- INFN, Naples and
- Naples U.
)
,
A Andryakov
(
- Frascati
)
,
A Antonelli
(
- Frascati
)
,
M Antonelli
(
- Frascati
)

et al.

- Nucl.Instrum.Meth.A 488 (2002) 51-73
•
DOI:
- 10.1016/S0168-9002(02)00514-4

- Nucl.Instrum.Meth.A 482 363

The trigger system of the KLOE experiment

KLOE

Collaboration

•

M Adinolfi
(
- INFN, Rome and
- Rome U.
)

et al.

- Nucl.Instrum.Meth.A 492 (2002) 134-146
•
DOI:
- 10.1016/S0168-9002(02)01313-X

Data handling, reconstruction, and simulation for the KLOE experiment

et al.

- Nucl.Instrum.Meth.A 534 (2004) 403-433
•
e-Print:
- physics/0404100
•
DOI:
- 10.1016/j.nima.2004.06.155

Monte Carlo simulation for radiative kaon decays

C. Gatti
(
- Frascati
)

- Eur.Phys.J.C 45 (2006) 417-420
•
e-Print:
- hep-ph/0507280
•
DOI:
- 10.1140/epjc/s2005-02435-2

Measurements of $K_L$ Branching Fractions and the CP Violation Parameter $|\eta_{\pm}|$

KTeV

Collaboration

•

T. Alexopoulos
(
- Wisconsin U., Madison
)

et al.

- Phys.Rev.D 70 (2004) 092006
•
e-Print:
- hep-ex/0406002
•
DOI:
- 10.1103/PhysRevD.70.092006