Search for invisible decays of the Lambda baryon
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Dosyalar
Tarih
2022-07-24
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
AMER PHYSICAL SOC
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Abstract: A search for invisible decays of the Lambda baryon is carried out in the process J/psi -> Lambda(Lambda) over bar based on (1.0087 +/- 0.0044) x 10(10) J/psi events collected with the BESIII detector located at the BEPCII storage ring. No signals are found for the invisible decays of. baryon, and the upper limit of the branching fraction is determined to be 7.4 x 10(-5) at the 90% confidence level. This is the first search for invisible decays of baryons; such searches will play an important role in constraining dark sector models related to the baryon asymmetry.
Açıklama
Anahtar Kelimeler
NEUTRON LIFETIME, ULTRACOLD NEUTRONS, VIOLATION, TRAP
Kaynak
PHYSICAL REVIEW D
WoS Q Değeri
N/A
