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10 papers · 2 filters
Possible complex annihilation and B -> K pi direct CP asymmetry
Junegone Chay, Hsiang-nan Li, Satoshi Mishima
We point out that a sizable strong phase could be generated from the penguin annihilation in the soft-collinear effective theory for B meson decays. Keeping a small scale suppresse…
Resummation of Relativistic Corrections to e+ e- -> J/psi+eta_c
Geoffrey T. Bodwin, Jungil Lee, Chaehyun Yu
We present a new calculation, in the nonrelativistic QCD (NRQCD) factorization formalism, of the relativistic corrections to the double-charmonium cross section sigma[e+ e- -> J/ps…
Improved determination of color-singlet nonrelativistic QCD matrix elements for S-wave charmonium
Geoffrey T. Bodwin, Hee Sok Chung, Daekyoung Kang +2
We present a new computation of S-wave color-singlet nonrelativistic QCD matrix elements for the J/psi and the eta_c. We compute the matrix elements of leading order in the heavy-q…
Electroweak symmetry breaking and cold dark matter from strongly interacting hidden sector
Taeil Hur, Dong-Won Jung, P. Ko +1
We consider a hidden sector with a vectorlike confining gauge theory like QCD with colors and light quarks in the hidden sector. Then a scale …
Probing electroweak physics using B -> XM decays in the endpoint region
Junegone Chay, Chul Kim, Adam K. Leibovich +1
Using soft-collinear effective theory we describe at leading order in 1/m_b all the semi-inclusive hadronic B -> XM decays near the endpoint, where an energetic light meson M recoi…
A solution to B --> pi pi puzzle and B --> K K
Seungwon Baek
The large ratio of color-suppressed tree amplitude to color-allowed one in decays is difficult to understand within the Standard Model, which is known as the "…