Details

Autor(en) / Beteiligte

• Rosner, J L
• Alexander, J P
• Cassel, D G
• Duboscq, J E
• Ehrlich, R
• Gibbons, L
• Gray, R
• Gray, S W
• Hartill, D L
• Heltsley, B K
• Hertz, D
• Jones, C D
• Kandaswamy, J
• Kreinick, D L
• Kuznetsov, V E
• Mahlke-Krüger, H
• Mohapatra, D
• Onyisi, P U E
• Peterson, D
• Riley, D
• Ryd, A
• Sadoff, A J
• Shi, X
• Stroiney, S
• Wilksen, T
• Athar, S B
• Patel, R
• Yelton, J
• Rubin, P
• Eisenstein, B I
• Karliner, I
• Mehrabyan, S
• Lowrey, N
• Selen, M
• White, E J
• Wiss, J
• Mitchell, R E
• Shepherd, M R
• Besson, D
• Pedlar, T K
• Cronin-Hennessy, D
• Gao, K Y
• Hietala, J
• Klein, T
• Lang, B W
• Poling, R
• Scott, A W
• Zweber, P
• Dobbs, S
• Metreveli, Z
• Seth, K K
• Tomaradze, A
• Libby, J
• Powell, A
• Wilkinson, G
• Ecklund, K M
• Love, W
• Savinov, V
• Lopez, A
• Mendez, H
• Ramirez, J
• Ge, J Y
• Miller, D H
• Sanghi, B
• Shipsey, I P J
• Adams, G S
• Anderson, M
• Cummings, J P
• Hu, D
• Moziak, B
• Napolitano, J
• He, Q
• Insler, J
• Muramatsu, H
• Park, C S
• Thorndike, E H
• Yang, F
• Artuso, M
• Blusk, S
• Khalil, S
• Li, J
• Mountain, R
• Randrianarivony, K
• Sultana, N
• Skwarnicki, T
• Stone, S
• Wang, J C
• Zhang, L M
• Bonvicini, G
• Cinabro, D
• Dubrovin, M
• Lincoln, A
• Rademacker, J
• Asner, D M
• Edwards, K W
• Naik, P
• Briere, R A
• Tatishvili, G
• Vogel, H
• Watkins, M E

Titel

Determination of the strong phase in D0-->K+pi- using quantum-correlated measurements

Ist Teil von

• Physical review letters, 2008-06, Vol.100 (22), p.221801-221801

Ort / Verlag

United States

Erscheinungsjahr

2008

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We exploit the quantum coherence between pair-produced D0 and D[over]0 in psi(3770) decays to study charm mixing, which is characterized by the parameters x and y, and to make a first determination of the relative strong phase delta between D0-->K+pi- and D[over]0-->K+pi-. Using 281 pb(-1) of e+e- collision data collected with the CLEO-c detector at Ecm=3.77 GeV, as well as branching fraction input and time-integrated measurements of RM identical with (x2 + y2)/2 and RWS identical with Gamma(D0-->K+pi-)/Gamma(D[over]0-->K+pi-) from other experiments, we find cosdelta=1.03(-0.17)(+0.31)+/-0.06, where the uncertainties are statistical and systematic, respectively. By further including other mixing parameter measurements, we obtain an alternate measurement of cosdelta=1.10+/-0.35+/-0.07, as well as x sindelta=(4.4(-1.8)(+2.7)+/-2.9)x10(-3) and delta=(22(-12-11)(+11+9)) degrees .