Search for the radiative decay η→π0γγ in the SND experiment at VEPP-2M

M. N. Achasov; K. I. Beloborodov; A. V. Berdyugin; A. V. Bozhenok; A. G. Bogdanchikov; D. A. Bukin; S. V. Burdin; T. V. Dimova; A. A. Drozdetsky; V. P. Druzhinin; D. I. Ganyushin; V. B. Golubev; V. N. Ivanchenko; I. A. Koop; A. A. Korol; S. V. Koshuba; A. V. Otboev; E. V. Pakhtusova; A. A. Salnikov; V. V. Shary; S. I. Serednyakov; Yu M. Shatunov; V. A. Sidorov; Z. K. Silagadze; A. G. Skripkin; A. A. Valishev; A. V. Vasiljev; Yu S. Velikzhanin

doi:10.1016/S0550-3213(01)00040-2

Search for the radiative decay η→π⁰γγ in the SND experiment at VEPP-2M

M. N. Achasov
, K. I. Beloborodov
, A. V. Berdyugin
, A. V. Bozhenok
, A. G. Bogdanchikov
, D. A. Bukin
, S. V. Burdin
, T. V. Dimova
, A. A. Drozdetsky
, V. P. Druzhinin
, D. I. Ganyushin
, V. B. Golubev
, V. N. Ivanchenko
, I. A. Koop
, A. A. Korol
, S. V. Koshuba
, A. V. Otboev
, E. V. Pakhtusova
, A. A. Salnikov
, V. V. Shary

S. I. Serednyakov, Yu M. Shatunov, V. A. Sidorov, Z. K. Silagadze, A. G. Skripkin, A. A. Valishev, A. V. Vasiljev, Yu S. Velikzhanin

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The η→π⁰γγ decay was investigated by the SND detector at VEPP-2M e⁺e^- collider in the reaction e⁺e^-→φ→ηγ. Here we present the results and some details of this study. We report an upper limit (90% c.l.) Br(η→π⁰γγ)<8.4×10^-4 as our final result. Our upper limit does not contradict the earlier measurement by GAMS spectrometer. To facilitate future studies a rather detailed review of the problem is also given.

Original language	English
Pages (from-to)	3-20
Number of pages	18
Journal	Nuclear Physics B
Volume	600
Issue number	1
DOIs	https://doi.org/10.1016/S0550-3213(01)00040-2
State	Published - Apr 16 2001
Externally published	Yes

Funding

This work is supported in part by Russian Fund for Basic Researches, grant No. 00-15-96802.

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10.1016/S0550-3213(01)00040-2

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Achasov, M. N., Beloborodov, K. I., Berdyugin, A. V., Bozhenok, A. V., Bogdanchikov, A. G., Bukin, D. A., Burdin, S. V., Dimova, T. V., Drozdetsky, A. A., Druzhinin, V. P., Ganyushin, D. I., Golubev, V. B., Ivanchenko, V. N., Koop, I. A., Korol, A. A., Koshuba, S. V., Otboev, A. V., Pakhtusova, E. V., Salnikov, A. A., ... Velikzhanin, Y. S. (2001). Search for the radiative decay η→π⁰γγ in the SND experiment at VEPP-2M. Nuclear Physics B, 600(1), 3-20. https://doi.org/10.1016/S0550-3213(01)00040-2

@article{65517decd3e542b98fcf663796c946f0,

title = "Search for the radiative decay η→π0γγ in the SND experiment at VEPP-2M",

abstract = "The η→π0γγ decay was investigated by the SND detector at VEPP-2M e+e- collider in the reaction e+e-→φ→ηγ. Here we present the results and some details of this study. We report an upper limit (90\% c.l.) Br(η→π0γγ)<8.4×10-4 as our final result. Our upper limit does not contradict the earlier measurement by GAMS spectrometer. To facilitate future studies a rather detailed review of the problem is also given.",

author = "Achasov, \{M. N.\} and Beloborodov, \{K. I.\} and Berdyugin, \{A. V.\} and Bozhenok, \{A. V.\} and Bogdanchikov, \{A. G.\} and Bukin, \{D. A.\} and Burdin, \{S. V.\} and Dimova, \{T. V.\} and Drozdetsky, \{A. A.\} and Druzhinin, \{V. P.\} and Ganyushin, \{D. I.\} and Golubev, \{V. B.\} and Ivanchenko, \{V. N.\} and Koop, \{I. A.\} and Korol, \{A. A.\} and Koshuba, \{S. V.\} and Otboev, \{A. V.\} and Pakhtusova, \{E. V.\} and Salnikov, \{A. A.\} and Shary, \{V. V.\} and Serednyakov, \{S. I.\} and Shatunov, \{Yu M.\} and Sidorov, \{V. A.\} and Silagadze, \{Z. K.\} and Skripkin, \{A. G.\} and Valishev, \{A. A.\} and Vasiljev, \{A. V.\} and Velikzhanin, \{Yu S.\}",

year = "2001",

month = apr,

day = "16",

doi = "10.1016/S0550-3213(01)00040-2",

language = "English",

volume = "600",

pages = "3--20",

journal = "Nuclear Physics B",

issn = "0550-3213",

publisher = "Elsevier",

number = "1",

}

Achasov, MN, Beloborodov, KI, Berdyugin, AV, Bozhenok, AV, Bogdanchikov, AG, Bukin, DA, Burdin, SV, Dimova, TV, Drozdetsky, AA, Druzhinin, VP, Ganyushin, DI, Golubev, VB, Ivanchenko, VN, Koop, IA, Korol, AA, Koshuba, SV, Otboev, AV, Pakhtusova, EV, Salnikov, AA, Shary, VV, Serednyakov, SI, Shatunov, YM, Sidorov, VA, Silagadze, ZK, Skripkin, AG, Valishev, AA, Vasiljev, AV & Velikzhanin, YS 2001, 'Search for the radiative decay η→π⁰γγ in the SND experiment at VEPP-2M', Nuclear Physics B, vol. 600, no. 1, pp. 3-20. https://doi.org/10.1016/S0550-3213(01)00040-2

TY - JOUR

T1 - Search for the radiative decay η→π0γγ in the SND experiment at VEPP-2M

AU - Achasov, M. N.

AU - Beloborodov, K. I.

AU - Berdyugin, A. V.

AU - Bozhenok, A. V.

AU - Bogdanchikov, A. G.

AU - Bukin, D. A.

AU - Burdin, S. V.

AU - Dimova, T. V.

AU - Drozdetsky, A. A.

AU - Druzhinin, V. P.

AU - Ganyushin, D. I.

AU - Golubev, V. B.

AU - Ivanchenko, V. N.

AU - Koop, I. A.

AU - Korol, A. A.

AU - Koshuba, S. V.

AU - Otboev, A. V.

AU - Pakhtusova, E. V.

AU - Salnikov, A. A.

AU - Shary, V. V.

AU - Serednyakov, S. I.

AU - Shatunov, Yu M.

AU - Sidorov, V. A.

AU - Silagadze, Z. K.

AU - Skripkin, A. G.

AU - Valishev, A. A.

AU - Vasiljev, A. V.

AU - Velikzhanin, Yu S.

PY - 2001/4/16

Y1 - 2001/4/16

N2 - The η→π0γγ decay was investigated by the SND detector at VEPP-2M e+e- collider in the reaction e+e-→φ→ηγ. Here we present the results and some details of this study. We report an upper limit (90% c.l.) Br(η→π0γγ)<8.4×10-4 as our final result. Our upper limit does not contradict the earlier measurement by GAMS spectrometer. To facilitate future studies a rather detailed review of the problem is also given.

AB - The η→π0γγ decay was investigated by the SND detector at VEPP-2M e+e- collider in the reaction e+e-→φ→ηγ. Here we present the results and some details of this study. We report an upper limit (90% c.l.) Br(η→π0γγ)<8.4×10-4 as our final result. Our upper limit does not contradict the earlier measurement by GAMS spectrometer. To facilitate future studies a rather detailed review of the problem is also given.

UR - https://www.scopus.com/pages/publications/18044399632

U2 - 10.1016/S0550-3213(01)00040-2

DO - 10.1016/S0550-3213(01)00040-2

M3 - Article

AN - SCOPUS:18044399632

SN - 0550-3213

VL - 600

SP - 3

EP - 20

JO - Nuclear Physics B

JF - Nuclear Physics B

IS - 1

ER -

Search for the radiative decay η→π⁰γγ in the SND experiment at VEPP-2M

Abstract

Funding

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