Expected accuracy in a measurement of the CKM angle {alpha} using a Dalitz plot analysis of B{sup 0} {sup {yields}} {rho}{pi} decays in the BTeV project

Journal Article · Fri Jun 15 00:00:00 EDT 2007 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778807060087· OSTI ID:21075859

Shestermanov, K E; Butler, J; Derevshchikov, A A ^[1]; Kasper, P; Kiselev, V V; Kravtsov, V I ^[1]; Kubota, Y ^[2]; Kutschke, R; Matulenko, Yu A; Minaev, N G; Mochalov, V V; Morozov, D A; Nogach, L V ^[1]; Rovere, M ^[3]; Ryazantsev, A V; Semenov, P A ^[1]; Stone, S ^[4]; Uzunian, A V ^[1]; Yarba, J

---

1. Institute for High Energy Physics (Russian Federation)
2. University of Minnesota (United States)
3. Istituto Nazionale di Fiscia Nucleare (Italy)
4. Syracuse University (United States)

A precise measurement of the angle {alpha} in the CKM triangle is very important for a complete test of the Standard Model. A theoretically clean method to extract {alpha} is provided by B{sup 0} {sup {yields}} {rho}{pi} decays. Monte Carlo simulations to obtain the BTeV reconstruction efficiency and to estimate the signal-to-background ratio for these decays were performed. Finally the time-dependent Dalitz plot analysis, using the isospin amplitude formalism for tree and penguin contributions, was carried out. It was shown that, in one year of data taking, BTeV could achieve an accuracy on {alpha} better than 5{sup o}.

• OSTI ID: 21075859
• Journal Information: Physics of Atomic Nuclei, Vol. 70, Issue 6; Other Information: DOI: 10.1134/S1063778807060087; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCURACY
B NEUTRAL MESONS
CABIBBO ANGLE
COMPUTERIZED SIMULATION
DALITZ PLOT
EFFICIENCY
ISOSPIN
KOBAYASHI-MASKAWA MATRIX
MONTE CARLO METHOD
PARTICLE DECAY
STANDARD MODEL
TIME DEPENDENCE