CP-sensitive observables of a hypothetical heavy spin-0 particle with the dominant γγ and Zγ-interaction.

International Conference on Particle Physics and Astrophysics

物理学;天文学

Belyaev, N.^1 ; Konoplich, R.^2,4 ; Prokofiev, K.^3

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

Department of Physics, New York University, 4 Washington Place, New York

NY

10003, United States^2

Department of Physics and Institute for Advanced Study, Hong Kong University of Science and Technology, Hong Kong^3

Physics Department, Manhattan College, 4513 Manhattan College Parkway, New York

NY

10471, United States^4

关键词: Azimuthal angle;    Fusion mechanism;    Gammagamma;    Interaction vertex;    Light quarks;    Tensor structures;    Vector boson;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012094/pdf
DOI  :  10.1088/1742-6596/798/1/012094

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

We study observables sensitive to tensor structure of interactions of a hypothetical heavy spin-0 boson. It is assumed that interactions of this particle are dominated by interactions with photons. The interactions with other vector bosons and quarks are supposed to be suppressed. The above assumptions favor the production of this hypothetical particle through the vector boson fusion mechanism structurally dominated by the photon and Z-interactions. This particle will be produced in association with two light quarks. It is shown that the azimuthal angle difference between the tagging jets provides an observable to probe the tensor structure of the interaction vertices of such hypothetical particle.