CP-violating Higgs at Tevatron

TL;DR

This paper investigates the potential to detect a CP-violating Higgs boson decaying into lighter Higgs pairs at the Tevatron, highlighting the challenges due to low signal efficiency in the studied channel.

Contribution

It provides a detailed analysis of the Higgs decay signature in the CP-violating MSSM framework using PYTHIA, focusing on the Tevatron's detection prospects.

Findings

Detection is very challenging in the LEP-allowed parameter space.

Signal efficiency is low for the considered decay channel.

Observation prospects are limited due to small signal rates.

Abstract

We analyze the prospect for observing the intermediate neutral Higgs ($h_2$) boson in its decay to two lighter Higgs bosons ($h_1$) at the Tevatron in the framework of the CP violating MSSM using the PYTHIA event generator. We consider the lepton+ 4-jets+ $\met$ channel from $p \bar p \ra W h_2 \ra W h_1 h_1 \ra l \nu_l b \bar b b\bar b$, with two or three tagged $b$ jets. We found that it is very hard to observe this signature in the LEP-allowed region of parameter space, due to the small signal efficiency.