Extra dimensions and seesaw neutrinos at the International Linear Collider

Tomoyuki Saito, Masaki Asano, Keisuke Fujii, Naoyuki Haba, Shigeki Matsumoto, Takehiro Nabeshima, Yosuke Takubo, Hitoshi Yamamoto, Koichi Yoshioka

研究成果: Article査読

12 被引用数 (Scopus)


We study the capability of the International Linear Collider to probe extra dimensions via the seesaw mechanism. In the scenario we study, heavy Kaluza-Klein neutrinos generate tiny neutrino masses and, at the same time, have sizable couplings to the standard-model particles. Consequently, a Kaluza-Klein tower of heavy neutrinos (N) can be produced and studied at the International Linear Collider through the process: e+e-→νN followed by N→Wℓ decay. We show that the single lepton plus two-jets final states with large missing energy from this signal process will provide a good opportunity to measure the masses and cross sections of Kaluza-Klein neutrinos up to the third level. Furthermore, the neutrino oscillation parameters can be extracted from the flavor dependence of the lowest-mode signals, which give us information about the origin of low-energy neutrino masses.

ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
出版ステータスPublished - 2010 11月 5

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)


「Extra dimensions and seesaw neutrinos at the International Linear Collider」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。