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. SharyS. 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

16 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.

Funders	Funder number
Russian Fund for Basic Researches	00-15-96802

Access to Document

10.1016/S0550-3213(01)00040-2

Cite this

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 - http://www.scopus.com/inward/record.url?scp=18044399632&partnerID=8YFLogxK

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

Access to Document

Other files and links

Fingerprint

Cite this