Search for Doubly Charged Higgs Bosons Decaying to Dileptons in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi><mml:mover accent="true"><mml:mi>p</mml:mi><mml:mo>¯</mml:mo></mml:mover></mml:math>Collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>1.96</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi mathvariant="normal">T</mml:mi><mml:mi mathvariant="normal">e</mml:mi><mml:mi mathvariant="normal">V</mml:mi></mml:math>
Bibliographic record
Abstract
We present the results of a search for doubly charged Higgs bosons (${H}^{\ifmmode\pm\else\textpm\fi{}\ifmmode\pm\else\textpm\fi{}}$) decaying to dileptons ($l{l}^{\ensuremath{'}}$) using $\ensuremath{\approx}240\text{ }\text{ }{\mathrm{p}\mathrm{b}}^{\ensuremath{-}1}$ of $p\overline{p}$ collision data collected by the CDF II experiment at the Fermilab Tevatron. In our search region, given by same-sign $l{l}^{\ensuremath{'}}$ mass ${m}_{l{l}^{\ensuremath{'}}}>80\text{ }\text{ }\mathrm{G}\mathrm{e}\mathrm{V}/{c}^{2}$ ($100\text{ }\text{ }\mathrm{G}\mathrm{e}\mathrm{V}/{c}^{2}$ for $ee$ channel), we observe no evidence for ${H}^{\ifmmode\pm\else\textpm\fi{}\ifmmode\pm\else\textpm\fi{}}$ production. We set limits on $\ensuremath{\sigma}(p\overline{p}\ensuremath{\rightarrow}{H}^{++}{H}^{--}\ensuremath{\rightarrow}{l}^{+}{l}^{\ensuremath{'}+}{l}^{\ensuremath{-}}{l}^{\ensuremath{'}\ensuremath{-}})$ as a function of the mass of the ${H}^{\ifmmode\pm\else\textpm\fi{}\ifmmode\pm\else\textpm\fi{}}$ and the chirality of its couplings. Assuming exclusive same-sign dilepton decays, we derive lower mass limits on ${H}_{L}^{\ifmmode\pm\else\textpm\fi{}\ifmmode\pm\else\textpm\fi{}}$ of 133, 136, and $115\text{ }\text{ }\mathrm{G}\mathrm{e}\mathrm{V}/{c}^{2}$ in the $ee$, $\ensuremath{\mu}\ensuremath{\mu}$, and $e\ensuremath{\mu}$ channels, respectively, and a lower mass limit of $113\text{ }\text{ }\mathrm{G}\mathrm{e}\mathrm{V}/{c}^{2}$ on ${H}_{R}^{\ifmmode\pm\else\textpm\fi{}\ifmmode\pm\else\textpm\fi{}}$ in the $\ensuremath{\mu}\ensuremath{\mu}$ channel, all at the 95% confidence level.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.035 | 0.008 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".