TY - JOUR
T1 - A model independent construction of the unitarity triangle
AU - Grossman, Yuval
AU - Nir, Yosef
AU - Worah, Mihir P.
PY - 1997/9/4
Y1 - 1997/9/4
N2 - In a large class of models, the only significant new physics effect on the CP asymmetries in B → ψKs and B → ππ decays is a new contribution to the B - B̄ mixing amplitude. This allows a model independent construction of the CKM Unitarity Triangle (up to hadronic uncertainties). Furthermore, the contributions to the mixing from the Standard Model and from the new physics can be disentangled. A serious obstacle to this analysis is an eightfold discrete ambiguity in solving for the angles of the triangle. Several ways to reduce the ambiguity either by making further measurements, or by making further assumptions about the nature of the new physics are described.
AB - In a large class of models, the only significant new physics effect on the CP asymmetries in B → ψKs and B → ππ decays is a new contribution to the B - B̄ mixing amplitude. This allows a model independent construction of the CKM Unitarity Triangle (up to hadronic uncertainties). Furthermore, the contributions to the mixing from the Standard Model and from the new physics can be disentangled. A serious obstacle to this analysis is an eightfold discrete ambiguity in solving for the angles of the triangle. Several ways to reduce the ambiguity either by making further measurements, or by making further assumptions about the nature of the new physics are described.
UR - http://www.scopus.com/inward/record.url?scp=0001264173&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(97)00675-8
DO - 10.1016/S0370-2693(97)00675-8
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0001264173
SN - 0370-2693
VL - 407
SP - 307
EP - 313
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3-4
ER -