期刊
PHYSICAL REVIEW D
卷 101, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.101.075011
关键词
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资金
- Kobayashi-Maskawa Institute for the Origin of Particles
- Universe, Toyoaki scholarship foundation
- Japan Society for the Promotion of Science (JSPS) [19J10980]
- U.S. National Science Foundation [PHY-1719914]
- Wu-Ki Tung endowed chair in particle physics
- Grants-in-Aid for Scientific Research [19J10980] Funding Source: KAKEN
Discrepancy between the measured value and the Standard Model prediction of the muon anomalous magnetic moment is a possible hint for new physics. A Z' particle with mu tau flavor violating couplings can give a large contribution to the muon anomalous magnetic moment due to the tau mass enhancement at the one-loop level, and is known to explain the above discrepancy. In this paper, we study the potential of the Large Hadron Collider (LHC) for detecting such a Z' boson via the pp -> mu(-)mu(-)tau(+)tau(+) process. Earlier studies in the literature only considered the production channel with quark initial states (pp -> q (q) over bar -> mu(-)mu(-)tau(+)tau(+)). Here, we show that the photon initiated process, pp -> gamma gamma -> mu(-)mu(-)tau(+)tau(+), is in fact the dominant production mode, for a heavy Z' boson of mass greater than a few hundred GeV. The potential of the high luminosity (HL) LHC is also considered.
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