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Title: Colorful imprints of heavy states in the electroweak effective theory

Journal Article · · Journal of High Energy Physics (Online)
ORCiD logo [1]; ORCiD logo [2];  [3];  [2];  [4]
  1. Univ. de Valencia - CSIC, Valencia (Spain); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Univ. de Valencia - CSIC, Valencia (Spain)
  3. Univ. Cardenal Herrera-CEU, Valencia (Spain)
  4. Univ. Complutense de Madrid, Madrid (Spain)

We analyze heavy states from generic ultraviolet completions of the Standard Model in a model-independent way and investigate their implications on the low-energy couplings of the electroweak effective theory. We build a general effective Lagrangian, implementing the electroweak symmetry breaking SU(2)$$_{L}$$ Ⓧ SU(2)R → SU(2)L+R with a non-linear Nambu-Goldstone realization, which couples the known particles to the heavy states. We generalize the formalism developed in previous works [1, 2] to include colored resonances, both of bosonic and fermionic type. We study bosonic heavy states with JP = 0± and JP = 1±, in singlet or triplet SU(2)L+R representations and in singlet or octet representations of SU(3)C , and fermionic resonances with J = 1/2 that are electroweak doublets and QCD triplets or singlets. Integrating out the heavy scales, we determine the complete pattern of low-energy couplings at the lowest non-trivial order. Some specific types of (strongly- and weakly-coupled) ultraviolet completions are discussed to illustrate the generality of our approach and to make contact with current experimental searches.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1487401
Report Number(s):
arXiv:1810.10544; IFIC/18-07; FTUV/18-1026; FERMILAB-PUB-18-550-T; VBSCAN-PUB-06-18; 1700399
Journal Information:
Journal of High Energy Physics (Online), Vol. 2019, Issue 5; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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