Topportunities at the LHC: rare top decays with light singlets
Abstract The discovery of the top quark, the most massive elementary particle yet known, has given us a distinct window into investigating the physics of the Standard Model and beyond. With a plethora of top quarks to be produced in the high luminosity era of the LHC, the exploration of its rare dec...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2024-10-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13411-3 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849220573354262528 |
|---|---|
| author | Henning Bahl Seth Koren Lian-Tao Wang |
| author_facet | Henning Bahl Seth Koren Lian-Tao Wang |
| author_sort | Henning Bahl |
| collection | DOAJ |
| description | Abstract The discovery of the top quark, the most massive elementary particle yet known, has given us a distinct window into investigating the physics of the Standard Model and beyond. With a plethora of top quarks to be produced in the high luminosity era of the LHC, the exploration of its rare decays holds great promise in revealing potential new physics phenomena. We consider higher-dimensional operators contributing to flavour-changing-neutral-current top decays in the SMEFT and its extension by a light singlet species of spin 0, 1/2, or 1, and exhibit that the HL-LHC (and other future colliders) may observe many exotic top decays in a variety of channels. Light singlets which primarily talk to the SM through such a top interaction may also lead to distinctive long-lived particle signals. Searching for such long-lived particles in top-quark decays has the additional advantage that the SM decay of the other top quark in the same event provides a natural trigger. |
| format | Article |
| id | doaj-art-6bb75f08bb084ae2a6cd52503eeb1493 |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-6bb75f08bb084ae2a6cd52503eeb14932024-12-08T12:43:28ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-10-01841011610.1140/epjc/s10052-024-13411-3Topportunities at the LHC: rare top decays with light singletsHenning Bahl0Seth Koren1Lian-Tao Wang2Department of Physics and Enrico Fermi Institute, University of ChicagoDepartment of Physics and Enrico Fermi Institute, University of ChicagoDepartment of Physics and Enrico Fermi Institute, University of ChicagoAbstract The discovery of the top quark, the most massive elementary particle yet known, has given us a distinct window into investigating the physics of the Standard Model and beyond. With a plethora of top quarks to be produced in the high luminosity era of the LHC, the exploration of its rare decays holds great promise in revealing potential new physics phenomena. We consider higher-dimensional operators contributing to flavour-changing-neutral-current top decays in the SMEFT and its extension by a light singlet species of spin 0, 1/2, or 1, and exhibit that the HL-LHC (and other future colliders) may observe many exotic top decays in a variety of channels. Light singlets which primarily talk to the SM through such a top interaction may also lead to distinctive long-lived particle signals. Searching for such long-lived particles in top-quark decays has the additional advantage that the SM decay of the other top quark in the same event provides a natural trigger.https://doi.org/10.1140/epjc/s10052-024-13411-3 |
| spellingShingle | Henning Bahl Seth Koren Lian-Tao Wang Topportunities at the LHC: rare top decays with light singlets European Physical Journal C: Particles and Fields |
| title | Topportunities at the LHC: rare top decays with light singlets |
| title_full | Topportunities at the LHC: rare top decays with light singlets |
| title_fullStr | Topportunities at the LHC: rare top decays with light singlets |
| title_full_unstemmed | Topportunities at the LHC: rare top decays with light singlets |
| title_short | Topportunities at the LHC: rare top decays with light singlets |
| title_sort | topportunities at the lhc rare top decays with light singlets |
| url | https://doi.org/10.1140/epjc/s10052-024-13411-3 |
| work_keys_str_mv | AT henningbahl topportunitiesatthelhcraretopdecayswithlightsinglets AT sethkoren topportunitiesatthelhcraretopdecayswithlightsinglets AT liantaowang topportunitiesatthelhcraretopdecayswithlightsinglets |