CDF W mass anomaly with a Stueckelberg-Higgs portal

Mingxuan Du (Department of Physics, Nanjing University, Nanjing, China) ; Zuowei Liu (Department of Physics, Nanjing University, Nanjing, China; CAS Center for Excellence in Particle Physics, Beijing, China) ; Pran Nath (Department of Physics, Northeastern University, Boston, USA)

We propose an explanation to the new W mass measurement recently reported by the CDF collaboration, which is larger than the standard model expectation by about 7 standard deviations. To alleviate the tensions that are imposed on the electroweak sector by the new W mass measurement, we carry out an analysis in the Stueckelberg extended standard model where a new neutral gauge boson appears which mixes with the two neutral gauge bosons in the electroweak sector both via the Stueckelberg mass terms and via the gauge invariant Stueckelberg-Higgs portal interaction and spoils the custodial symmetry at the tree level so that the simple relation between the W boson mass and the Z boson mass does not hold. We find that such an extension increases the W boson mass if the new gauge boson mass is larger than the Z boson mass. We further show that there exists a significant part of the parameter space in the extended model which includes the CDF mass anomaly and is consistent with the various observables at the Z pole and consistent with the ATLAS dilepton limits. The Stueckelberg ZSt boson, which resolves the CDF W mass anomaly, should be searchable in future LHC experiments.

{
  "license": [
    {
      "url": "http://creativecommons.org/licenses/by/3.0/", 
      "license": "CC-BY-3.0"
    }
  ], 
  "copyright": [
    {
      "holder": "The Author(s)", 
      "statement": "The Author(s)", 
      "year": "2022"
    }
  ], 
  "control_number": "72686", 
  "_oai": {
    "updated": "2022-10-21T15:31:52Z", 
    "id": "oai:repo.scoap3.org:72686", 
    "sets": [
      "PLB"
    ]
  }, 
  "authors": [
    {
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Nanjing University, Nanjing, China"
        }
      ], 
      "surname": "Du", 
      "email": "mingxuandu@smail.nju.edu.cn", 
      "full_name": "Du, Mingxuan", 
      "given_names": "Mingxuan"
    }, 
    {
      "surname": "Liu", 
      "given_names": "Zuowei", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Nanjing University, Nanjing, China"
        }, 
        {
          "country": "China", 
          "value": "CAS Center for Excellence in Particle Physics, Beijing, China"
        }
      ], 
      "full_name": "Liu, Zuowei", 
      "orcid": "0000-0002-8377-9317", 
      "email": "zuoweiliu@nju.edu.cn"
    }, 
    {
      "affiliations": [
        {
          "country": "USA", 
          "value": "Department of Physics, Northeastern University, Boston, USA"
        }
      ], 
      "surname": "Nath", 
      "email": "p.nath@northeastern.edu", 
      "full_name": "Nath, Pran", 
      "given_names": "Pran"
    }
  ], 
  "_files": [
    {
      "checksum": "md5:4fab8198b00b33cc9ddb5aa13efc65cd", 
      "filetype": "xml", 
      "bucket": "4b97ad17-7ed3-4421-ad4d-b2463fab3e89", 
      "version_id": "20131527-0c92-48e6-afc1-48970bb0398c", 
      "key": "10.1016/j.physletb.2022.137454.xml", 
      "size": 242661
    }, 
    {
      "checksum": "md5:f6baf803c29241b20c07b1d53b37fd70", 
      "filetype": "pdf", 
      "bucket": "4b97ad17-7ed3-4421-ad4d-b2463fab3e89", 
      "version_id": "f6b5106b-afe3-48b8-9a26-9cb21ee40ab8", 
      "key": "10.1016/j.physletb.2022.137454.pdf", 
      "size": 376205
    }, 
    {
      "checksum": "md5:c4a14cdd01f8af41bdd18761d86c6d0c", 
      "filetype": "pdf/a", 
      "bucket": "4b97ad17-7ed3-4421-ad4d-b2463fab3e89", 
      "version_id": "b2b87494-27f4-4973-8e66-ea7f45cf5763", 
      "key": "10.1016/j.physletb.2022.137454_a.pdf", 
      "size": 702008
    }
  ], 
  "record_creation_date": "2022-09-15T12:30:22.417137", 
  "titles": [
    {
      "source": "Elsevier", 
      "title": "CDF W mass anomaly with a Stueckelberg-Higgs portal"
    }
  ], 
  "collections": [
    {
      "primary": "Physics Letters B"
    }
  ], 
  "dois": [
    {
      "value": "10.1016/j.physletb.2022.137454"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "834 C", 
      "journal_title": "Physics Letters B", 
      "material": "article", 
      "artid": "137454", 
      "year": 2022
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "abstracts": [
    {
      "source": "Elsevier", 
      "value": "We propose an explanation to the new W mass measurement recently reported by the CDF collaboration, which is larger than the standard model expectation by about 7 standard deviations. To alleviate the tensions that are imposed on the electroweak sector by the new W mass measurement, we carry out an analysis in the Stueckelberg extended standard model where a new neutral gauge boson appears which mixes with the two neutral gauge bosons in the electroweak sector both via the Stueckelberg mass terms and via the gauge invariant Stueckelberg-Higgs portal interaction and spoils the custodial symmetry at the tree level so that the simple relation between the W boson mass and the Z boson mass does not hold. We find that such an extension increases the W boson mass if the new gauge boson mass is larger than the Z boson mass. We further show that there exists a significant part of the parameter space in the extended model which includes the CDF mass anomaly and is consistent with the various observables at the Z pole and consistent with the ATLAS dilepton limits. The Stueckelberg <math><msubsup><mrow><mi>Z</mi></mrow><mrow><mi>St</mi></mrow><mrow><mo>\u2032</mo></mrow></msubsup></math> boson, which resolves the CDF W mass anomaly, should be searchable in future LHC experiments."
    }
  ], 
  "imprints": [
    {
      "date": "2022-10-21", 
      "publisher": "Elsevier"
    }
  ], 
  "acquisition_source": {
    "date": "2022-10-21T15:31:27.008397", 
    "source": "Elsevier", 
    "method": "Elsevier", 
    "submission_number": "39c027e4515511eda33ab6e03099cfc1"
  }
}
Published on:
21 October 2022
Publisher:
Elsevier
Published in:
Physics Letters B , Volume 834 C (2022)

Article ID: 137454
DOI:
https://doi.org/10.1016/j.physletb.2022.137454
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: