LHC tau-pair production constraints on $a_\tau$ and $d_\tau$
We point out that relevant constraints on the anomalous magnetic ($a_\tau$) and electric ($d_\tau$) moment of the tau lepton can be derived from tau-pair production measurements performed at the LHC. Our conclusion is based on the observation that the leading relative deviations from the Standard Mo...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SciPost
2024-02-01
|
| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.16.2.048 |
| _version_ | 1827350898467143680 |
|---|---|
| author | Ulrich Haisch, Luc Schnell, Joachim Weiss |
| author_facet | Ulrich Haisch, Luc Schnell, Joachim Weiss |
| author_sort | Ulrich Haisch, Luc Schnell, Joachim Weiss |
| collection | DOAJ |
| description | We point out that relevant constraints on the anomalous magnetic ($a_\tau$) and electric ($d_\tau$) moment of the tau lepton can be derived from tau-pair production measurements performed at the LHC. Our conclusion is based on the observation that the leading relative deviations from the Standard Model prediction for $pp \to \tau^+ \tau^-$ due to $a_\tau$ and $d_\tau$ are enhanced at high energies. Less precise measurements at hadron colliders can therefore offer the same or better sensitivity to new physics with respect to high-precision low-energy measurements performed at lepton machines. We derive bounds on $a_\tau$ and $d_\tau$ using the full LHC Run II data set on tau-pair production and compare our findings with the current best limits on the tau anomalous moments. |
| first_indexed | 2024-03-08T01:49:10Z |
| format | Article |
| id | doaj.art-9a15f15c6a894950be3dce390b335c2c |
| institution | Directory Open Access Journal |
| issn | 2542-4653 |
| language | English |
| last_indexed | 2024-03-08T01:49:10Z |
| publishDate | 2024-02-01 |
| publisher | SciPost |
| record_format | Article |
| series | SciPost Physics |
| spelling | doaj.art-9a15f15c6a894950be3dce390b335c2c2024-02-14T11:45:33ZengSciPostSciPost Physics2542-46532024-02-0116204810.21468/SciPostPhys.16.2.048LHC tau-pair production constraints on $a_\tau$ and $d_\tau$Ulrich Haisch, Luc Schnell, Joachim WeissWe point out that relevant constraints on the anomalous magnetic ($a_\tau$) and electric ($d_\tau$) moment of the tau lepton can be derived from tau-pair production measurements performed at the LHC. Our conclusion is based on the observation that the leading relative deviations from the Standard Model prediction for $pp \to \tau^+ \tau^-$ due to $a_\tau$ and $d_\tau$ are enhanced at high energies. Less precise measurements at hadron colliders can therefore offer the same or better sensitivity to new physics with respect to high-precision low-energy measurements performed at lepton machines. We derive bounds on $a_\tau$ and $d_\tau$ using the full LHC Run II data set on tau-pair production and compare our findings with the current best limits on the tau anomalous moments.https://scipost.org/SciPostPhys.16.2.048 |
| spellingShingle | Ulrich Haisch, Luc Schnell, Joachim Weiss LHC tau-pair production constraints on $a_\tau$ and $d_\tau$ SciPost Physics |
| title | LHC tau-pair production constraints on $a_\tau$ and $d_\tau$ |
| title_full | LHC tau-pair production constraints on $a_\tau$ and $d_\tau$ |
| title_fullStr | LHC tau-pair production constraints on $a_\tau$ and $d_\tau$ |
| title_full_unstemmed | LHC tau-pair production constraints on $a_\tau$ and $d_\tau$ |
| title_short | LHC tau-pair production constraints on $a_\tau$ and $d_\tau$ |
| title_sort | lhc tau pair production constraints on a tau and d tau |
| url | https://scipost.org/SciPostPhys.16.2.048 |
| work_keys_str_mv | AT ulrichhaischlucschnelljoachimweiss lhctaupairproductionconstraintsonatauanddtau |