TY - JOUR
T1 - Probing the nature of compactification with Kaluza-Klein excitations at the Large Hadron Collider
AU - Nath, Pran
AU - Yamada, Youichi
AU - Yamaguchi, Masahiro
N1 - Funding Information:
The research of P.N. was supported in part by the National Science Foundation grant no. PHY-9602074. The work of Y.Y. was supported in part by the Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports, and Culture of Japan, No.10740106, and the work of M.Y. by the Grant-in-Aid on Priority Area 707 “Supersymmetry and Unified Theory of Elementary Particles”, and by the Grant-in-Aid No.11640246 and No.98270.
PY - 1999
Y1 - 1999
N2 - It is shown that the nature of compactification of extra dimensions in theories of large radius compactification can be explored in several processes at the Large Hadron Collider (LHC). Specifically it is shown that the characteristics of the Kaluza-Klein (KK) excitations encode information on the nature of compactification, i.e., on the number of compactified dimensions as well as on the type of compactification, e.g., of the specific orbifold compactification. The most dramatic signals arise from the interference pattern involving the exchange of the Standard Model spin 1 bosons (γ and Z) and their Kaluza-Klein modes in the dilepton final state pp → l+l-X. It is shown that LHC with 100 fb-1 of luminosity can discover Kaluza-Klein modes up to compactification scales of ≈ 6 TeV as well as identify the nature of compactification. Effects of the Kaluza-Klein excitations of the W boson and of the gluon are also studied. Exhibition of these phenomena is given for the case of one extra dimension and for the case of two extra dimensions with Z2 × Z2, Z3, and Z6 orbifold compactifications.
AB - It is shown that the nature of compactification of extra dimensions in theories of large radius compactification can be explored in several processes at the Large Hadron Collider (LHC). Specifically it is shown that the characteristics of the Kaluza-Klein (KK) excitations encode information on the nature of compactification, i.e., on the number of compactified dimensions as well as on the type of compactification, e.g., of the specific orbifold compactification. The most dramatic signals arise from the interference pattern involving the exchange of the Standard Model spin 1 bosons (γ and Z) and their Kaluza-Klein modes in the dilepton final state pp → l+l-X. It is shown that LHC with 100 fb-1 of luminosity can discover Kaluza-Klein modes up to compactification scales of ≈ 6 TeV as well as identify the nature of compactification. Effects of the Kaluza-Klein excitations of the W boson and of the gluon are also studied. Exhibition of these phenomena is given for the case of one extra dimension and for the case of two extra dimensions with Z2 × Z2, Z3, and Z6 orbifold compactifications.
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U2 - 10.1016/S0370-2693(99)01141-7
DO - 10.1016/S0370-2693(99)01141-7
M3 - Article
AN - SCOPUS:4244017392
VL - 466
SP - 100
EP - 106
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 2-4
ER -