TY - JOUR
T1 - Composite scalars at the LHC
T2 - the Higgs, the Sextet and the Octet
AU - Cacciapaglia, Giacomo
AU - Cai, Haiying
AU - Deandrea, Aldo
AU - Flacke, Thomas
AU - Lee, Seung Joon
AU - Parolini, Alberto
PY - 2015/11/1
Y1 - 2015/11/1
N2 - Abstract: We present a phenomenological theory of scalar particles that transform as a sextet and an octet of QCD interactions. These particles may arise as light bound states of a fundamental dynamics giving rise to a composite Higgs boson and partial compositeness for the top. As a concrete example, we discuss an explicit UV completion based on the SU(4)/Sp(4) coset, where QCD colour is carried by additional fundamental fermions charged under the confining gauge group. Top partners, as well as potentially even lighter coloured scalars, arise as bound states of the coloured fermions. We study production and detection at LHC Run I and II of the octet and sextet, setting lower limits on masses and couplings to Standard Model particles using existing 8 TeV analyses. We finally explore prospects for the ongoing 13 TeV Run II: we focus on final states with two same sign leptons, that have the potential to discriminate the sextet.
AB - Abstract: We present a phenomenological theory of scalar particles that transform as a sextet and an octet of QCD interactions. These particles may arise as light bound states of a fundamental dynamics giving rise to a composite Higgs boson and partial compositeness for the top. As a concrete example, we discuss an explicit UV completion based on the SU(4)/Sp(4) coset, where QCD colour is carried by additional fundamental fermions charged under the confining gauge group. Top partners, as well as potentially even lighter coloured scalars, arise as bound states of the coloured fermions. We study production and detection at LHC Run I and II of the octet and sextet, setting lower limits on masses and couplings to Standard Model particles using existing 8 TeV analyses. We finally explore prospects for the ongoing 13 TeV Run II: we focus on final states with two same sign leptons, that have the potential to discriminate the sextet.
KW - Beyond Standard Model
KW - Global Symmetries
KW - Technicolor and Composite Models
UR - http://www.scopus.com/inward/record.url?scp=84949218875&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84949218875&partnerID=8YFLogxK
U2 - 10.1007/JHEP11(2015)201
DO - 10.1007/JHEP11(2015)201
M3 - Article
AN - SCOPUS:84949218875
VL - 2015
SP - 1
EP - 40
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 11
M1 - 201
ER -