Gabriele Ruggiero

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The direct CP violation parameter Re( ′/ ) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. The 2001 running period was devoted to collecting additional data under varied conditions compared to earlier years (1997–1999). The new data yield the result: Re( ′/ )= (13.7 ± 3.1)× 10−4. Combining this(More)
OBJECTIVES We report the results of a derma graft corporoplasty in a selected group of patients with congenital penile curvature (CPC) who refused a simple plication technique for the risk of penile shortening, even if minimal. METHODS Between January 1995 and January 2004, 15 potent patients with CPC underwent corporoplasty with inguinal derma graft,(More)
From 56 days of data taking in 2002, the NA48/1 experiment observed 6316 Ξ0 → Σeνe candidates (with the subsequent Σ + → pπ0 decay) and 555 Ξ0 → Σ+eνe candidates with background contamination of 215 ± 44 and 136 ± 8 events, respectively. From these samples, the branching ratios BR(Ξ0 → Σeνe) = (2.51 ± 0.03stat±0.09syst)×10 and BR(Ξ0 → Σeνe) =(More)
A search for the decay KS → π0μ+μ− has been made by the NA48/1 Collaboration at the CERN SPS accelerator. The data were collected during 2002 with a high-intensity KS beam. Six events were found with a background expectation of 0.22 −0.11 events. Using a vector matrix element and unit form factor, the measured branching ratio is B(KS → πμμ) = [2.9(More)
A derivative of warfarin, racemic C19H14O4, Mr = 306.32, monoclinic, Cc, a = 9.594 (2), b = 20.437 (4), c = 7.793 (2) A, beta = 109.94 (3) degree, V = 1436.4 (11) A3, Z = 4, Dx = 1.416 g cm-3, lambda(CuK alpha) = 1.5418 A, mu = 7.742 cm-1, F(000) = 640, T = 293 K, final R = 0.053 for 1224 observations. The title molecule, formed by spontaneous dehydration(More)
The NA48 collaboration has measured the amplitude of the CP-conserving component of the decay K0 S → π+π−π0 relative to K0 L → π+π−π0. For the characteristic parameter λ, the values Re λ = 0.038±0.010 and Im λ = −0.013±0.007 have been extracted. These values agree with earlier measurements and with theoretical predictions from chiral perturbation theory.