TY - JOUR
T1 - Precision measurements of little Higgs parameters at the International Linear Collider
AU - Asakawa, Eri
AU - Asano, Masaki
AU - Fujii, Keisuke
AU - Kusano, Tomonori
AU - Matsumoto, Shigeki
AU - Sasaki, Rei
AU - Takubo, Yosuke
AU - Yamamoto, Hitoshi
PY - 2009/4/1
Y1 - 2009/4/1
N2 - We investigate the possibility of precision measurements for parameters of the littlest Higgs model with T parity at the International Linear Collider. The model predicts new gauge bosons (AH, ZH, and WH), among which the heavy photon (AH) is a candidate for dark matter. The masses of these new gauge bosons strongly depend on the vacuum expectation value that breaks a global symmetry of the model. Through Monte Carlo simulations of the processes, e+e-→AHZH and e+e-→WH+WH-, we show how precisely the masses can be determined at the International Linear Collider for a representative parameter point of the model. We also discuss the determination of the little Higgs parameters and their impact on the future measurement of the thermal abundance of the dark matter relics in our Universe.
AB - We investigate the possibility of precision measurements for parameters of the littlest Higgs model with T parity at the International Linear Collider. The model predicts new gauge bosons (AH, ZH, and WH), among which the heavy photon (AH) is a candidate for dark matter. The masses of these new gauge bosons strongly depend on the vacuum expectation value that breaks a global symmetry of the model. Through Monte Carlo simulations of the processes, e+e-→AHZH and e+e-→WH+WH-, we show how precisely the masses can be determined at the International Linear Collider for a representative parameter point of the model. We also discuss the determination of the little Higgs parameters and their impact on the future measurement of the thermal abundance of the dark matter relics in our Universe.
UR - http://www.scopus.com/inward/record.url?scp=66249147208&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=66249147208&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.79.075013
DO - 10.1103/PhysRevD.79.075013
M3 - Article
AN - SCOPUS:66249147208
VL - 79
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 7
M1 - 075013
ER -