First measurement of ΛN inelastic scattering with Λ from e+ e- → J/Ψ → ΛΛ <overcap>
Küçük Resim Yok
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American pysical society
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Using an e(+)e(-) collision data sample of ( 10 087 +/- 44) x 106 J Psi. events taken at the center-of-mass energy of 3.097 GeV by the BESIII detector at the BEPCII collider, the process Lambda + N -> Sigma(+) + X is studied for the first time employing a novelmethod. The Lambda+ hyperons are produced by the collisions of Sigma(+) hyperons from J/. decays with nuclei in the material of the BESIII detector. The total cross section of Lambda + Be-9 -> Sigma(+) + X is measured to be sigma = (37.3 +/- 4.7 +/- 3.5) mb with Lambda momenta within [1.057, 1.091] GeV/c, where the uncertainties are statistical and systematic, respectively. This analysis is the first study of Lambda-nucleon interactions at an e(+)e(-) , providing information and constraints relevant for the strong-interaction potential, the origin of color confinement, the unified model for baryon-baryon interactions, and the internal structure of neutron stars.
Açıklama
Anahtar Kelimeler
Kaynak
Physical review C
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
109
Sayı
5
Künye
Ablikim, M., Achasov, M. N., Adlarson, P., Ai, X. C., Aliberti, R., Amoroso, A., ... & Jackson, J. (2024). First measurement of Λ N inelastic scattering with Λ from e+ e−→ J/ψ→ Λ Λ¯. Physical Review C, 109(5), L052201.
