Search for the γZ decay mode of heavy photophobic axion-like particles at the LHC
Abstract We assume the coupling of Axion-like particle (ALP) to diphoton g aγγ ~ 0 and accomplish detailed analyses for the γZ decay mode of such heavy photophobic ALPs at the high luminosity-Large Hadron Collider (HL-LHC). ALPs are produced with two jets via both the s-channel vector boson exchange...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-06-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP06(2025)087 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849767425663303680 |
|---|---|
| author | Zilong Ding Ying-nan Mao Kechen Wang |
| author_facet | Zilong Ding Ying-nan Mao Kechen Wang |
| author_sort | Zilong Ding |
| collection | DOAJ |
| description | Abstract We assume the coupling of Axion-like particle (ALP) to diphoton g aγγ ~ 0 and accomplish detailed analyses for the γZ decay mode of such heavy photophobic ALPs at the high luminosity-Large Hadron Collider (HL-LHC). ALPs are produced with two jets via both the s-channel vector boson exchange and vector boson fusion processes, with the signal process pp → jja(→ γZ(→ ℓ + ℓ − )) for ℓ = e, μ. Signal and background events are simulated at the detector-level. Preselection criteria target events with one photon, two oppositely charged electrons or muons, and two non-b-tagged jets. The ALP mass is reconstructed, and kinematic observables are input into a machine learning-based multivariate analysis for optimal background rejection. Discover sensitivities on the ALP’s coupling to di-W boson, g aWW , are presented in the mass range from 100 to 4000 GeV at center-of-mass energy s $$ \sqrt{s} $$ = 14 TeV and integrated luminosity L $$ \mathcal{L} $$ = 3 ab −1 and 140 fb −1. Sensitivities on the production cross section σ(pp → jja) times the branching ratio Br(a → γZ) are also presented. |
| format | Article |
| id | doaj-art-8fbc7b175e094fa28967bb95541776a1 |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-8fbc7b175e094fa28967bb95541776a12025-08-20T03:04:11ZengSpringerOpenJournal of High Energy Physics1029-84792025-06-012025612310.1007/JHEP06(2025)087Search for the γZ decay mode of heavy photophobic axion-like particles at the LHCZilong Ding0Ying-nan Mao1Kechen Wang2Department of Physics, School of Physics and Mechanics, Wuhan University of TechnologyDepartment of Physics, School of Physics and Mechanics, Wuhan University of TechnologyDepartment of Physics, School of Physics and Mechanics, Wuhan University of TechnologyAbstract We assume the coupling of Axion-like particle (ALP) to diphoton g aγγ ~ 0 and accomplish detailed analyses for the γZ decay mode of such heavy photophobic ALPs at the high luminosity-Large Hadron Collider (HL-LHC). ALPs are produced with two jets via both the s-channel vector boson exchange and vector boson fusion processes, with the signal process pp → jja(→ γZ(→ ℓ + ℓ − )) for ℓ = e, μ. Signal and background events are simulated at the detector-level. Preselection criteria target events with one photon, two oppositely charged electrons or muons, and two non-b-tagged jets. The ALP mass is reconstructed, and kinematic observables are input into a machine learning-based multivariate analysis for optimal background rejection. Discover sensitivities on the ALP’s coupling to di-W boson, g aWW , are presented in the mass range from 100 to 4000 GeV at center-of-mass energy s $$ \sqrt{s} $$ = 14 TeV and integrated luminosity L $$ \mathcal{L} $$ = 3 ab −1 and 140 fb −1. Sensitivities on the production cross section σ(pp → jja) times the branching ratio Br(a → γZ) are also presented.https://doi.org/10.1007/JHEP06(2025)087Axions and ALPsSpecific BSM Phenomenology |
| spellingShingle | Zilong Ding Ying-nan Mao Kechen Wang Search for the γZ decay mode of heavy photophobic axion-like particles at the LHC Journal of High Energy Physics Axions and ALPs Specific BSM Phenomenology |
| title | Search for the γZ decay mode of heavy photophobic axion-like particles at the LHC |
| title_full | Search for the γZ decay mode of heavy photophobic axion-like particles at the LHC |
| title_fullStr | Search for the γZ decay mode of heavy photophobic axion-like particles at the LHC |
| title_full_unstemmed | Search for the γZ decay mode of heavy photophobic axion-like particles at the LHC |
| title_short | Search for the γZ decay mode of heavy photophobic axion-like particles at the LHC |
| title_sort | search for the γz decay mode of heavy photophobic axion like particles at the lhc |
| topic | Axions and ALPs Specific BSM Phenomenology |
| url | https://doi.org/10.1007/JHEP06(2025)087 |
| work_keys_str_mv | AT zilongding searchforthegzdecaymodeofheavyphotophobicaxionlikeparticlesatthelhc AT yingnanmao searchforthegzdecaymodeofheavyphotophobicaxionlikeparticlesatthelhc AT kechenwang searchforthegzdecaymodeofheavyphotophobicaxionlikeparticlesatthelhc |