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Study of the decay D-0 -> K-K-K+pi(+) - art. no. 112003

Authors

Aitala, EM Amato, S Anjos, JC Appel, JA Ashery, D Banerjee, S Bediaga, I Blaylock, G Bracker, SB Burchat, PR Burnstein, RA Carter, T Carvalho, HS Copty, NK Cremaldi, LM Darling, C Denisenko, K Devmal, S Fernandez, A Fox, GF Gagnon, P Gerzon, S Gobel, C Gounder, K Halling, AM Herrera, G Hurvits, G James, C Kasper, PA Kwan, S Langs, DC Leslie, J Lichtenstadt, J Lundberg, B MayTal-Beck, S Meadows, B Neto, JRTD Mihalcea, D Milburn, RH de Miranda, JM Napier, A Nguyen, A d'Oliveira, AB O'Shaughnessy, K Peng, KC Perera, LP Purohit, MV Quinn, B Radeztsky, S Rafatian, A Reay, NW Reidy, JJ dos Reis, AC Rubin, HA Sanders, DA Santha, AKS Santoro, AFS Schwartz, AJ Sheaff, M Sidwell, RA Slaughter, AJ Sokoloff, MD Solano, J Stanton, NR Stefanski, RJ Stenson, K Summers, DJ Takach, S Thorne, K Tripathi, AK Watanabe, S Weiss-Babai, R Wiener, J Witchey, N Wolin, E Yang, SM Yi, D Yoshida, S Zaliznyak, R Zhang, C

Citation

Em. Aitala et al., Study of the decay D-0 -> K-K-K+pi(+) - art. no. 112003, PHYS REV D, 6411(11), 2001, pp. 2003

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW D

ISSN journal

05562821 → ACNP

Volume

6411

Issue

Year of publication

2001

Database

ISI

SICI code

0556-2821(200112)6411:11<2003:SOTDD->2.0.ZU;2-Y

Abstract

Using data from the E791 fixed-target hadroproduction experiment at Fermila b, we have studied the Cabibbo-favored but phase-space-suppressed decay D-0 -->K- K- K+ pi (+). We find the decay rate for this mode to be (0.54+/-0.16 +/-0.08) x 10(-2) times that for the normalization mode D-0-->K- pi (-) pi (+) pi (+). We observe a clear signal for D-0-->phiK(-) pi (+) which is con sistent with producing 0.7+/-0.3 of the D-0-K- K- K+ pi (+) signal. In the context of simple models, we use our measurements to estimate the importanc e of decay amplitudes that produce extra quark-antiquark pairs from the vac uum relative to those that do not.