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Title: Large scale separation and hadronic resonances from a new strongly interacting sector

Abstract

Many theories describing physics beyond the Standard Model rely on a large separation of scales. Large scale separation arises in models with mass-split flavors if the system is conformal in the ultraviolet but chirally broken in the infrared. Because of the conformal fixed point, these systems exhibit hyperscaling and a highly constrained resonance spectrum. We derive hyperscaling relations and investigate the realization of one such system with four light and eight heavy flavors. Our numerical simulations confirm that both light–light and heavy–heavy resonance masses show hyperscaling and depend only on the ratio of the light and heavy flavor masses. The heavy–heavy spectrum is qualitatively different from QCD and exhibits quarkonia with masses not proportional to the constituent quark mass. These resonances are only a few times heavier than the light–light ones, which would put them within reach of the LHC.

Authors:
; ; ORCiD logo
Publication Date:
Research Org.:
Univ. of Colorado, Boulder, CO (United States); Boston Univ., MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1437720
Alternate Identifier(s):
OSTI ID: 1545038
Grant/Contract Number:  
SC0010005; SC0015845
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 773 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Hasenfratz, A., Rebbi, C., and Witzel, O. Large scale separation and hadronic resonances from a new strongly interacting sector. Netherlands: N. p., 2017. Web. doi:10.1016/j.physletb.2017.07.058.
Hasenfratz, A., Rebbi, C., & Witzel, O. Large scale separation and hadronic resonances from a new strongly interacting sector. Netherlands. doi:10.1016/j.physletb.2017.07.058.
Hasenfratz, A., Rebbi, C., and Witzel, O. Sun . "Large scale separation and hadronic resonances from a new strongly interacting sector". Netherlands. doi:10.1016/j.physletb.2017.07.058.
@article{osti_1437720,
title = {Large scale separation and hadronic resonances from a new strongly interacting sector},
author = {Hasenfratz, A. and Rebbi, C. and Witzel, O.},
abstractNote = {Many theories describing physics beyond the Standard Model rely on a large separation of scales. Large scale separation arises in models with mass-split flavors if the system is conformal in the ultraviolet but chirally broken in the infrared. Because of the conformal fixed point, these systems exhibit hyperscaling and a highly constrained resonance spectrum. We derive hyperscaling relations and investigate the realization of one such system with four light and eight heavy flavors. Our numerical simulations confirm that both light–light and heavy–heavy resonance masses show hyperscaling and depend only on the ratio of the light and heavy flavor masses. The heavy–heavy spectrum is qualitatively different from QCD and exhibits quarkonia with masses not proportional to the constituent quark mass. These resonances are only a few times heavier than the light–light ones, which would put them within reach of the LHC.},
doi = {10.1016/j.physletb.2017.07.058},
journal = {Physics Letters B},
number = C,
volume = 773,
place = {Netherlands},
year = {2017},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2017.07.058

Citation Metrics:
Cited by: 3 works
Citation information provided by
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