Search for photoproduction of axionlike particles at GlueX

Search for photoproduction of axionlike particles at GlueX

We present a search for axionlike particles, a, produced in photon-proton collisions at a center-of-mass energy of approximately 4 GeV, focusing on the scenario where the a-gluon coupling is dominant. The search uses a -> gamma gamma and a -> pi(+)pi(-)pi(0) decays, and a data sample correspon...

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Bibliographic Details
Published in:Physical Review D Vol. 105, № 5. P. 052007-1-052007-8
Other Authors: Adhikari, S., Akondi, C. S., Albrecht, M., Ali, A., Amaryan, M., Asaturyan, A., Austregesilo, A., Baldwin, Z., Barbosa, F., Barlow, J., Barriga, E., Barsotti, R., Beattie, T. D., Berdnikov, V. V., Black, T., Boeglin, W., Lyubovitskij, Valery E.
Format: Article
Language:English
Subjects:
протон-протонные столкновения
фотоны
глюоны
аксионоподобные частицы
статьи в журналах
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002549
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Description
Summary:We present a search for axionlike particles, a, produced in photon-proton collisions at a center-of-mass energy of approximately 4 GeV, focusing on the scenario where the a-gluon coupling is dominant. The search uses a -> gamma gamma and a -> pi(+)pi(-)pi(0) decays, and a data sample corresponding to an integrated luminosity of 168 pb -1 collected with the GlueX detector. The search for a -> gamma gamma decays is performed in the mass range of 180 < m(a) < 480 MeV, while the search for a -> pi(+)pi(-)pi(0) decays explores the 600 < m(a) < 720 MeV region. No evidence for a signal is found, and 90% confidence-level exclusion limits are placed on the a-gluon coupling strength. These constraints are the most stringent to date over much of the mass ranges considered.
Bibliography:Библиогр.: 55 назв.
ISSN:2470-0010

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