Scientific Commons: G. Lamanna

Using the full data set of the NA48/2 experiment, the decay K+- -> pi+- e+ e- gamma is observed for the first time, selecting 120 candidates with 7.3 +- 1.7 estimated background events. With K+- ->...

New high statistics measurement of K_{e4} decay form factors and pi pi scattering phase shifts (2007)

Batley, J R, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

We report results from a new measurement of the K_{e4} decay K^{+-} -> \pi^+ \pi^- e^{+-} v by the NA48/2 collaboration at the CERN SPS, based on a partial sample of more than 670000 Ke4 decays in...

Determination of the relative decay rate KS $\to \pi e \nu$ / KL $\to \pi e \nu$ (2007)

Batley, J R, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, ...

The decay rate of KS $\to \pi e \nu$ relative to the rate of KL $\to \pi e \nu$ has been measured by the NA48 collaboration in a neutral Kaon beam originating from 400 GeV proton-Be interactions at...

Search for direct CP violating charge asymmetries in $K^\pm\to\pi^\pm\pi^+\pi^-$ and $K^\pm\to\pi^\pm\pi^0\pi^0$ decays (2007)

Batley, J R, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes $A_g=(g^+-g^-)/(g^++g^-)$ in $K^\pm\to\pi^\pm\pi^+\pi^-$ and $K^\pm\to\pi^\pm\pi^0\pi^0$ decays by the...

Measurements of the$\xi^0$ Lifetime and the $\overline{\Xi^0}/\Xi^0$ Flux Ratio in a Neutral Beam (2007)

Batley, J R, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, ...

A total of 235 698 Xi0 -> Lambda pi0 and 21 527 anti-Xi0 -> anti-Lambda pi0 decays were selected from data obtained by the NA48/1 experiment at CERN. From this sample, the lifetime of the Xi0 hyperon...

The Beam and Detector for the NA48 Neutral Kaon CP Violation Experiment at CERN (2007)

Fanti, V, Lai, A, Marras, D, Musa, L, Nappi, A, Batley, R, ...

The Beam and Detector, used for the NA48 experiment, devoted to the measurement of $Re(\epsilon^{\prime}/\epsilon)$, and for the NA48/1 experiment on rare K_S and neutral hyperon decays, are...

Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01 (2007)

Aguilar, M, Alcaraz, J, Allaby, James V, Alpat, B, Ambrosi, G, Anderhub, H, ...

A measurement of the cosmic ray positron fraction e+/(e+ + e-) in the energy range of 1-30 GeV is presented. The measurement is based on data taken by the AMS-01 experiment during its 10 day Space...

First observation and branching fraction and decay parameter measurements of the weak radiative decay $\Xi^0 \to \Lambda e^{+}e^{-}$ (2007)

Batley, J R, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, ...

The weak radiative decay $Xi^0 -> \Lambda e^+ e^- $ has been detected for the first time. We find 412 candidates in the signal region, with an estimated background of $15pm 5$ events. We determine...

Measurement of the Dalitz plot slopes of the $K^\pm\to\pi^\pm\pi^+\pi^-$ decay (2007)

Batley, J R, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, ...

The distribution of the $K^\pm\to\pi^\pm\pi^+\pi^-$ decays in the Dalitz plot has been measured by the NA48/2 experiment at the CERN SPS with a sample of $4.71\times 10^8$ fully reconstructed events....

Measurements of Charged Kaon Semileptonic Decay Branching Fractions $K^{+-} \to \pi^0 \mu^{+-} \nu$ and $K^{+-} \to \pi^0 e^{+-} \nu$ and Their Ratio (2007)

Batley, J R, Anzivino, G, Arcidiacono, R, Baldini, W, Balev, S, Behler, M, ...

Measured ratios of decay rates for $\rkekp$, $\rkmukp$ and $\rkmuke$ are presented. These measurements are based on $K^\pm$ decays collected in a dedicated run in 2003 by the NA48/2 experiment at...

Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01 (2007)

Aguilar, M., Alcaraz, J., Allaby, J., Alpat, B., Ambrosi, G., Anderhub, H., ...

Discovery of VHE gamma-rays from the distant BL Lacertae 1ES0347-121 (2007)

Aharonian, F., Akhperjanian, A. G., De Almeida, U. B., Bazer-Bachi, A. R., Behera, B., Beilicke, M., ...

New constraints on the mid-IR EBL from the HESS discovery of VHE gamma-rays from 1ES 0229+200 (2007)

Aharonian, F., Akhperjanian, A. G., De Almeida, U. B., Bazer-Bachi, A. R., Behera, B., Beilicke, M., ...

Discovery of two candidate pulsar wind nebulae in very-high-energy gamma rays (2007)

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Behera, B., Beilicke, M., Benbow, W., ...

An exceptional very high energy gamma-ray flare of PKS 2155-304 (2007)

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Behera, B., Beilicke, M., Benbow, W., ...

Detection of VHE gamma-ray emission from the distant blazar 1ES 1101-232 with HESS and broadband characterisation (2007)

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Beilicke, M., Benbow, W., Berge, D., ...

Discovery of a point-like very-high-energy gamma-ray source in Monoceros (2007)

Aharonian, F. A., Akhperjanian, A. G., Bazer-Bachi, A. R., Behera, B., Beilicke, M., Benbow, W., ...

Detection of extended very-high-energy gamma-ray emission towards the young stellar cluster Westerlund 2 (2007)

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Beilicke, M., Benbow, W., Berge, D., ...

H.E.S.S. observations of the supernova remnant RX J0852.0-4622: Shell-type morphology and spectrum of a widely extended very high energy gamma-ray source (2007)

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Beilicke, M., Benbow, W., Berge, D., ...

Search for pulsed VHE gamma-ray emission from young pulsars with HESS (2007)

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Beilicke, M., Benbow, W., Berge, D., ...

Primary particle acceleration above 100 TeV in the shell-type supernova remnant RX J1713.7-3946 with deep HESS observations (2007)

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Beilicke, M., Benbow, W., Berge, D., ...

First ground-based measurement of atmospheric Cherenkov light from cosmic rays (2007)

Aharonian, F., Akhperjanian, A. G., Bazer-Bachi, A. R., Beilicke, M., Benbow, W., Berge, D., ...

Measurement of the branching ratios of the decays $\Xi^{0}\rightarrow \sigma^{+} e^{-} \overline{\nu}_{e}$ and $\overline{\Xi^{0}}\rightarrow \overline{\sigma^{+}} e^{+} \nu_{e}$ (2006)

Batley, J Richard, Anzivino, G, Arcidiacono, R, Baldini, W, Behler, M, Biino, C, ...

From 56 days of data taking in 2002, the NA48/1 experiment observed 6316 $\Xi^{0}\rightarrow \Sigma^{+} e^{-} \overline{\nu}_{e}$ candidates (with the subsequent $\Sigma^{+} \rightarrow p \pi^{0}$...

Fast Variability of Tera–Electron Volt gamma Rays from the Radio Galaxy M87 (2006)

Aharonian, Felix, Akhperjanian, A. G., Bazer-Bachi, A. R., Beilicke, M., Benbow, Wystan, ...

The detection of fast variations of the tera–electron volt (TeV) (1012 eV) gamma-ray flux, on time scales of days, from the nearby radio galaxy M87 is reported. These variations are about 10 times...

A study of cosmic ray secondaries induced by the Mir space station using AMS-01 (2005)

Aguilar, M., Alcaraz, J., Allaby, J., Alpat, B., Ambrosi, G., Anderhub, H., ...

Protons in near earth orbit (2000)

Alcaraz, J, Alvisi, D, Alpat, B, Ambrosi, G, Anderhub, H, Ao, L, ...

The proton spectrum in the kinetic energy range 0.1 to 200 GeV was measuredby the Alpha Magnetic Spectrometer (AMS) during space shuttle flight STS-91 atan altitude of 380 km. Above the geomagnetic...

G. Lamanna

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