Searching for axion-like particles with proton tagging at the LHC

Autor(es)

Baldenegro, C. ; Fichet, S. ; von Gersdorff, G. ; Royon, C.

• Tipo de documento: Artigo Científico
• Fonte: Journal of High Energy Physics; v. N/A, n. 6, p. 19-pg., 2018-06-25.

Resumo

The existence of an axion-like particle (ALP) would induce anomalous scattering of light by light. This process can be probed at the Large Hadron Collider in central exclusive production of photon pairs in proton-proton collisions by tagging the surviving protons using forward proton detectors. Using a detailed simulation, we estimate the expected bounds on the ALP-photon coupling for a wide range of masses. We show that the proposed search is competitive and complementary to other collider bounds for masses above 600 GeV, especially for resonant ALP production between 600 GeV and 2TeV. Our results are also valid for a CP-even scalar, and the efficiency of the search is independent of the width of the ALP. (AU)

• Processo FAPESP: 14/21477-2 - Física de partículas na escala electro-fraca: modelos e interpretações
• Beneficiário: Sylvain Pierre Joseph Fichet
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado