Skip to main content
eScholarship
Open Access Publications from the University of California

Observation of direct CP violation in ks, l→ΠΠ decays

  • Author(s): Alavi-Harati, A
  • Albuquerque, IF
  • Alexopoulos, T
  • Arenton, M
  • Arisaka, K
  • Averitte, S
  • Barker, AR
  • Bellantoni, L
  • Bellavance, A
  • Belz, J
  • Ben David, R
  • Bergman, DR
  • Blucher, E
  • Bock, GJ
  • Bown, C
  • Bright, S
  • Cheu, E
  • Childress, S
  • Coleman, R
  • Corcoran, MD
  • Corti, G
  • Cox, B
  • Crisler, MB
  • Erwin, AR
  • Ford, R
  • Glazov, A
  • Golossanov, A
  • Graham, G
  • Graham, J
  • Hagan, K
  • Halkiadakis, E
  • Hanagaki, K
  • Hidaka, S
  • Hsiung, YB
  • Jejer, V
  • Jennings, J
  • Jensen, DA
  • Kessler, R
  • Kobrak, HGE
  • La Due, J
  • Lath, A
  • Ledovskoy, A
  • Mc Bride, PL
  • Mc Manus, AP
  • Mikelsons, P
  • Monnier, E
  • Nakaya, T
  • Nauenberg, U
  • Nelson, KS
  • Nguyen, H
  • O’dell, V
  • Pang, M
  • Pordes, R
  • Prasad, V
  • Qiao, C
  • Quinn, B
  • Ramberg, EJ
  • Ray, RE
  • Roodman, A
  • Sadamoto, M
  • Schnetzer, S
  • Senyo, K
  • Shanahan, P
  • Shawhan, PS
  • Slater, W
  • Solomey, N
  • Somalwar, SV
  • Stone, RL
  • Suzuki, I
  • Swallow, EC
  • Swanson, RA
  • Taegar, SA
  • Tesarek, RJ
  • Thomson, GB
  • Toale, PA
  • Tripathi, A
  • Tschirhart, R
  • Wah, YW
  • Wang, J
  • White, HB
  • Whitmore, J
  • Winstein, B
  • Winston, R
  • Wu, JY
  • Yamanaka, T
  • Zimmerman, ED
  • et al.
Abstract

We have compared the decay rates of KLand KStoΠ+Π-Π0Π0final states using a subset of the data from the KTeV experiment (E832) at Fermilab. We find that the direct-CP-violation parameter Re (μ’/μ) is equal to [28.0±3.0(stat)±2.8(syst)]×10-4. This result definitively establishes the existence of CP violation in a decay process. © 1999 The American Physical Society.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View