TY  - JOUR
AU  - BABAR Collaboration (Lees, J. P. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
PY  - 2022
DA  - 2022//
TI  - Search for an Axionlike Particle in B Meson Decays
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 131802
EP  - 8pp
VL  - 128
IS  - 13
PB  - Amer Physical Soc
AB  - Axionlike particles (ALPs) are predicted in many extensions of the standard model, and their masses can naturally be well below the electroweak scale. In the presence of couplings to electroweak bosons, these particles could be emitted in flavor-changing B meson decays. We report herein a search for an ALP, a, in the reaction B-+/- -> K(+/-)a, a -> gamma gamma using data collected by the BABAR experiment at SLAC. No significant signal is observed, and 90% confidence level upper limits on the ALP coupling to electroweak bosons are derived as a function of ALP mass, improving current constraints by several orders of magnitude in the range 0.175 GeV < m(a) < 4.78 GeV.
SN  - 0031-9007
UR  - https://arxiv.org/abs/2111.01800
UR  - https://doi.org/10.1103/PhysRevLett.128.131802
DO  - 10.1103/PhysRevLett.128.131802
LA  - English
N1  - WOS:000804568000011
ID  - BABARCollaborationLees_etal2022
ER  -