Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-02-13
Phys.Rev.Lett. 86 (2001) 5854-5857
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages. Large tan\beta cases included. To appear in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.86.5854
We analyze the implications of the new physics effect seen in the $g-2$ Brookhaven measurement and show that if the effect arises from supersymmetry, then the sign of the Higgs mixing parameter $\mu$ is determined to be positive in the standard sign convention. Further, analyses within the minimal supergravity model show that the Brookhaven result leads to upper limits on the universal gaugino and scalar masses of $m_{1/2}\leq 800$ GeV and $m_0\leq 1.5$ TeV for $\tan\beta\leq 55$. Our analysis strongly suggests that supersymmetry via production of sparticles must be found at the Large Hadron Collider. Further, sign($\mu$) positive is favorable for the discovery of supersymmetric cold dark matter.
Chattopadhyay Utpal
Nath Pran
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