New measurement of radiative decays at the NA62 Experiment at CERN: $K_{e3\gamma}$ - INSPIRE

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New measurement of radiative decays at the NA62 Experiment at CERN: $K_{e3\gamma}$

NA62

Collaboration

Jun 26, 2022

6 pages

Published in:

PoS DISCRETE2020-2021 (2022) 055

Contribution to:

- DISCRETE 2020-2021
, 055

Published: Jun 26, 2022

DOI:

10.22323/1.405.0055

Experiments:

CERN-NA-062

View in:

CERN Document Server

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Abstract: (SISSA)

The NA62 experiment at CERN reports new results from studies of radiative kaon decays (

Ke3\gamma

)

K^+ \rightarrow \pi^0 e^+ \nu \gamma

, using a data sample %recorded collected in 2017-2018. The sample comprises O(100k) Ke3g candidates with sub-percent background contaminations. Preliminary results including the most precise measurement of the

Ke3\gamma

branching ratios and the T-asymmetry measurement in the

Ke3\gamma

decay, are presented.

K+: radiative decay
CERN Lab
NA62
CERN SPS
K+: branching ratio: measured
time reversal: violation
background
experimental results
K+ --> pi0 positron neutrino photon

References(8)

Figures(0)

[1]

Radiative semileptonic kaon decays

- Nucl.Phys.B 396 (1993) 81-118
•
e-Print:
- hep-ph/9209261
•
DOI:
- 10.1016/0550-3213(93)90259-R

[2]

T odd correlation in the K(l3 gamma) decay

- Phys.Rev.D 65 (2002) 054038,
- Phys.Atom.Nucl. 65 (2002) 1868-1876,
- Yad.Fiz. 65 (2002) 1920-1928,
•
e-Print:
- hep-ph/0106147
•
DOI:
- 10.1103/PhysRevD.65.054038

[3]

Aspects of radiative K+(e3) decays

Bastian Kubis
(
- Bonn U., HISKP
)
,
Eike H. Muller
(
- Bonn U., HISKP and
- Edinburgh U.
)
,
Jurg Gasser
(
- Bern U.
)
,
Martin Schmid
(
- Bern U.
)

- Eur.Phys.J.C 50 (2007) 557-571
•
e-Print:
- hep-ph/0611366
•
DOI:
- 10.1140/epjc/s10052-007-0215-9

[4]

Study of #d{K- --> pi0 e- nubar_e gamma} Decay with ISTRA+ Setup

ISTRA+

Collaboration

•

S.A. Akimenko

for the collaboration.

- Phys.Atom.Nucl. 70 (2007) 702
•
DOI:
- 10.1134/S1063778807040114

[5]

Study of $K^+ \rightarrow \pi^{0} e^{+} \nu \gamma$ decay with OKA setup

OKA

Collaboration

•

A.Yu. Polyarush
(
- Moscow, INR
)

et al.

- Eur.Phys.J.C 81 (2021) 2, 161
•
e-Print:
- 2010.07983
•
DOI:
- 10.1140/epjc/s10052-021-08895-2

[6]

$K^+_{l3\gamma}$ decays revisited: branching ratios and T-odd momenta correlations

I.B. Khriplovich
(
- Novosibirsk, IYF
)
,
A.S. Rudenko
(
- Novosibirsk, IYF
)

- Phys.Atom.Nucl. 74 (2011) 1214-1222
•
e-Print:
- 1012.0147
•
DOI:
- 10.1134/S1063778811080102

[7]

The Beam and detector of the NA62 experiment at CERN

NA62

Collaboration

•

Eduardo Cortina Gil
(
- Louvain U.
)

et al.

- JINST 12 (2017) 05, P05025
•
e-Print:
- 1703.08501
•
DOI:
- 10.1088/1748-0221/12/05/P05025

[8]

T odd correlation in the K+ ---> pi l nu gamma decays beyond standard model

- Phys.Rev.D 68 (2003) 094008,
•
e-Print:
- hep-ph/0305067
•
DOI:
- 10.1103/PhysRevD.68.094008