Measurements of the $\Xi^0$ lifetime and the $\overline{\Xi^0}/\Xi^0$ flux ratio in a neutral beam

Autor: Batley, J Richard, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Patel, M, Slater, M W, Wotton, S A, Arcidiacono, R, Bocquet, G, Ceccucci, A, Cundy, Donald C, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Grafström, P, Kubischta, Werner, Mikulec, I, Norton, A, Panzer-Steindel, B, Rubin, P, Wahl, H, Goudzovski, E, Khristov, P Z, Kekelidze, V D, Litov, L, Madigozhin, D T, Molokanova, N A, Potrebenikov, Yu K, Stoynev, S, Zinchenko, A I, Monnier, E, Swallow, E, Winston, R, Sacco, R, Walker, A, Baldini, W, Dalpiaz, P, Frabetti, P L, Gianoli, A, Martini, M, Petrucci, F, Savrié, M, Scarpa, M, Bizzeti, A, Calvetti, M, Collazuol, G, Iacopini, E, Lenti, M, Ruggiero, G, Veltri, M, Behler, M, Eppard, K, Eppard, M, Hirstius, A, Kleinknecht, K, Koch, U, Marouelli, P, Masetti, L, Moosbrugger, U, Morales-Morales, C, Peters, A, Wanke, R, Winhart, A, Dabrowski, A, Fonseca-Martin, T, Velasco, M, Anzivino, Giuseppina, Cenci, P, Imbergamo, E, Lamanna, G, Lubrano, P, Michetti, A, Nappi, A, Pepé, M, Petrucci, M C, Piccini, M, Valdata, M, Cerri, C, Costantini, F, Fantechi, R, Fiorini, L, Giudici, S, Mannelli, I, Pierazzini, G M, Sozzi, M, Cheshkov, C, Chèze, J B, De Beer, M, Debu, P, Gouge, G, Marel, Gérard, Mazzucato, E, Peyaud, B, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Biino, C, Cartiglia, N, Clemencic, M, Goy-Lopez, S, Marchetto, F, Menichetti, E, Pastrone, N, Wislicki, W, Dibon, Heinz, Jeitler, Manfred, Markytan, Manfred, Neuhofer, G, Widhalm, L

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 was measured to be (3.065 +- 0.012(stat) +- 0.014(

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od________65::cb062baec001ef0fb37faa080003b1e0
http://cds.cern.ch/record/1039142

Measurement of the ratio $\Gamma(K_{L} \rightarrow \pi^{+}\pi^{-}) / \Gamma(K_{L} \rightarrow \pi^{\pm}e^{\mp}\nu)$ and extraction of the CP violation parameter $|\eta_{+-}|$

Autor: Lai, A, Anzivino, Giuseppina, Arcidiacono, R, Barr, G, Becker, H G, Bertanza, L, Bevan, A, Biino, C, Bizzeti, A, Bocquet, G, Calvetti, M, Carosi, R, Cartiglia, N, Ceccucci, A, Cenci, P, Cerri, C, Cheshkov, C, Chollet, J C, Chèze, J B, Cirilli, M, Cogan, J, Collazuo, G, Contalbrigo, M, Costantini, F, Cuhadar-Dnszelmann, T, Cundy, Donald C, D'Agostini, G, Dalpiaz, P, De Beer, M, Debu, P, Dibon, Heinz, Doble, N, Dosanjh, R S, Duclos, J, Eppard, K, Eppard, M, Falaleev, V, Fantechi, R, Fayard, L, Fischer, G, Formica, A, Fox, H, Frabetti, P L, Gaponenko, A N, Gatignon, L, Gershon, T J, Gianoli, A, Giudici, S, Gonidec, A, Gorini, B, Govi, G, Grafstrm, P, Granier de Cassagnac, R, Graziani, G, Guida, R, Hay, B, Holder, M, Iacopini, E, Iconomidou-Fayard, L, Imbergamo, E, Jeitler, Manfred, Kalmus, George Ernest, Kalter, A, Kekelidze, V D, Khristov, P Z, Kleinknecht, K, Knowles, I, Koch, U, Kpke, L, Kubischta, Werner, Lacourt, A, Lazzeroni, C, Lenti, M, Litov, L, Lopes da Silva, P, Lubrano, P, Madigozhin, D T, Maier, A, Mannelli, I, Marchetto, F, Markytan, Manfred, Marouelli, P, Marras, D, Martelli, F, Martin, V, Martini, M, Mazzucato, E, Menichetti, E, Mestvirishvili, A, Mikulec, I, Molokanova, N A, Munday, D J, Nappi, A, Nassalski, J P, Neuhofer, G, Norton, A, Ocariz, J, Olaiya, E, Palestini, S, Panzer-Steindel, B, Parker, M A, Pastrone, N, Pellmann, I, Pepé, M, Pernicka, M, Peters, A, Petrucci, F, Peyaud, B, Piccini, M, Pierazzini, G M, Potrebenikov, Yu K, Renk, B, Rondio, E, Sacco, R, Savrié, M, Schmidt, S A, Schönharting, V, Schué, Yu, Sozzi, M, Stoynev, S, Szleper, M, Tatishvili, G T, Taureg, H, Taurok, A, Tkatchev, A, Turlay, René, Unal, G, Vallage, B, Velasco, M, Veltri, M, Wah, H, Walker, A, Wanke, R, White, T O, Widhalm, L, Wingerter-Seez, I, Winhart, A, Wislicki, W, Wittgen, M, Wotton, S A, Wronka, S, Zinchenko, A I, Ziolkowski, M

We present a measurement of the ratio of the decay rates $\Gamma (K_L \rightarrow\pi^+\pi^-) / \Gamma(K_L \rightarrow\pi^{\pm}e^{\mp}\nu)$, denoted as $\Gamma_{K2\pi}/\Gamma_{Ke3}$. The analysis is based on data taken during a dedicated run in 1999 b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od________65::810a4e90475918e6d86a58af01f98f61
http://cds.cern.ch/record/997723

Search for direct CP-violation in $K^{\pm} \to \pi^{\pm} \pi^{0} \pi^{0}$ decays

Autor: Batley, J Richard, Culling, A J, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Slater, M W, Wotton, S A, Arcidiacono, R, Bocquet, G, Cabibbo, Nicola, Ceccucci, A, Cundy, Donald C, Falaleev, V, Fidecaro, Maria, Gatignon, L, Gonidec, A, Kubischta, Werner, Norton, A, Maier, A, Patel, M, Peters, A, Balev, S, Frabetti, P L, Goudzovski, E, Khristov, P Z, Kekelidze, V D, Kozhuharov, V, Litov, L, Madigozhin, D T, Marinova, E, Molokanova, N A, Polenkevich, I, Potrebenikov, Yu K, Stoynev, S, Zinchenko, A I, Monnier, E, Swallow, E, Winston, R, Rubin, P, Walker, A, Baldini, W, Cotta-Ramusino, A, Dalpiaz, P, Damiani, C, Fiorini, M, Gianoli, A, Martini, M, Petrucci, F, Savrié, M, Scarpa, M, Wahle, H, Bizzeti, A, Calvetti, M, Celeghini, E, Iacopini, E, Lenti, M, Martelli, F, Ruggiero, G, Veltri, M, Behler, M, Eppard, K, Kleinknecht, K, Marouelli, P, Masetti, L, Moosbrugger, U, Morales-Morales, C, Renk, B, Wache, M, Wanke, R, Winhart, A, Coward, D, Dabrowski, A, Fonseca-Martin, T, Shieh, M, Szleper, M, Velasco, M, Wood, M D, Anzivino, Giuseppina, Cenci, P, Imbergamo, E, Nappi, A, Pepé, M, Petrucci, M C, Piccini, M, Raggi, M, Valdata-Nappi, M, Cerri, C, Collazuol, G, Costantini, F, Di Lella, Luigi, Doble, Niels T, Fantechi, R, Fiorini, L, Giudici, Sergio, Lamanna, G, Mannelli, I, Michetti, A, Pierazzini, G M, Sozzi1, M, Bloch-Devaux, B, Cheshkov, C, Chèze, J B, De Beer, M, Derr, J, Marel, Gérard, Mazzucato, E, Peyaud, B, Vallage, B, Holder, M, Ziolkowski, M, Bifani, S, Biino, C, Cartiglia, N, Clemencic, M, Goy-Lopez, S, Marchetto, F, Dibon, Heinz, Jeitler, Manfred, Markytan, Manfred, Mikulec, I, Neuhofer, G, Widhalm, L

A search for direct CP-violation in $K^{\pm}\rightarrow \pi^\pm \pi^0 \pi^0$ decay based on 47.14 million events has been performed by the NA48/2 experiment at the CERN SPS. The asymmetry in the Dalitz plot linear slopes $A_g = ( g^+ -g^- ) / ( g^+ +

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od________65::421cfa106f67c2883bf7ee21b410e879
http://cds.cern.ch/record/953115

Observation of a cusp-like structure in the $\pi^{0}\pi^{0}$ invariant mass distribution from $K^{+-} \to \pi^{+-}\pi^{0}\pi^{0}$ decay and determination of the $\pi\pi$ scattering lengths

Autor: Batley, J Richard, Anzivino, Giuseppina, Arcidiacono, R, Baldini, W, Balev, S, Behler, M, Biino, C, Bizzeti, A, Bloch-Devaux, B, Bocquet, G, Cabibbo, Nicola, Calvetti, M, Cartiglia, N, Ceccucci, A, Celeghini, E, Cenci, P, Cerri, C, Cheshkov, C, Chèze, J B, Clemencic, M, Collazuol, G, Costantini, F, Cotta-Ramusino, A, Coward, D, Cundy, Donald C, Dabrowski, A, Dalpiaz, P, Damiani, C, De Beer, M, Derré, J, Di Lella, Luigi, Dibon, Heinz, Doble, Niels T, Eppard, K, Falaleev, V, Fantechi, R, Fidecaro, Maria, Fiorini, L, Fiorini, M, Fonseca-Martin, T, Frabetti, P L, Gatignon, L, Gianoli, A, Giudici, Sergio, Gonidec, A, Goudzovski, E, Goy-Lopez, S, Holder, M, Iacopini, E, Imbergamo, E, Jeitler, Manfred, Kekelidze, V D, Khristov, P Z, Kleinknecht, K, Kozhuharov, V, Kubischta, Werner, Lamanna, G, Lazzeroni, Cristina, Lenti, M, Litov, L, Madigozhin, D T, Maier, A, Mannelli, I, Marchetto, F, Marel, Gérard, Marinova, E, Markytan, Manfred, Marouelli, P, Martelli, F, Martini, M, Masetti, L, Mazzucato, E, Michetti, A, Mikulec, I, Molokanova, N A, Monnier, E, Moosbrugger, U, Morales-Morales, C, Munday, D J, Neuhofer, G, Norton, A, Patel, M, Pepé, M, Peters, A, Petrucci, F, Petrucci, M C, Peyaud, B, Piccini, M, Pierazzini, G M, Polenkevich, I, Potrebenikov, Yu K, Raggi, M, Renk, B, Rubin, P, Ruggiero, G, Savrié, M, Scarpa, M, Shieh, M, Slater, M W, Sozzi, M, Stoynev, S, Swallow, E, Szleper, M, Valdata-Nappi, M, Vallage, B, Velasco, M, Veltri, M, Wache, M, Wahl, H, Walker, A, Wanke, R, Widhalm, L, Winhart, A, Winston, R, Wood, M D, Wotton, S A, Zinchenko, A I, Ziolkowski, M

We report the results from a study of $\sim 2.3 \times 10^{7} K^{\pm} \to \pi^{\pm}\pi^{0}\pi^{0}$ decays recorded by the NA48/2 experiment at the CERN SPS, showing an anomaly in the $\pi^{0}\pi^{0}$ invariant mass ($M_{00}$) distribution in the regi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od________65::26cc63f00ec5571e94eb476a1ac1e088
http://cds.cern.ch/record/911535

Measurement of the $\Xi^{0} \to \Lambda\gamma$ decay asymmetry and branching fraction

Autor: Lai, A, Marras, D, Bevan, A, Dosanjh, R S, Gershon, T J, Hay, B, Kalmus, George Ernest, Lazzeroni, C, Munday, D J, Olaiya, E, Parker, M A, White, T O, Wotton, S A, Barr, G, Bocquet, G, Ceccucci, Augusto, Çuhadar-Dönszelmann, T, Cundy, Donald C, D'Agostini, Giulio, Doble, Niels T, Falaleev, V P, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafström, P, Kubischta, Werner, Lacourt, A, Norton, A, Palestini, S, Panzer-Steindel, B, Taureg, Hans, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A N, Khristov, P Z, Kekelidze, V D, Madigozhin, D T, Molokanova, N A, Potrebenikov, Yu K, Tatishvili, G T, Tkachev, A L, Zinchenko, A I, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, Pietro, Duclos, J, Frabetti, P L, Gianoli, A, Martini, M, Petrucci, F, Savrié, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, H G, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Köpke, L, Lopes da Silva, P, Marouelli, P, Pellmann, I A, Peters, A, Renk, B, Schmidt, S A, Schönharting, V, Schué, Yu, Wanke, R, Winhart, A, Wittgen, M, Chollet, J C, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, Giuseppina, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepé, M, Piccini, M, Bertanza, L, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, Sergio, Mannelli, I, Pierazzini, G M, Sozzi, M, Chèze, J B, Cogan, J, De Beer, M, Debu, P, Formica, A, Granier de Cassagnac, R, Mazzucato, E, Peyaud, B, Turlay, René, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J P, Rondio, Ewa, Szleper, M, Wislicki, W, Wronka, S, Dibon, Heinz, Fischer, G, Jeitler, Manfred, Markytan, Manfred, Mikulec, I, Neuhofer, Günther, Pernicka, Manfred, Taurok, Anton, Widhalm, L

In data taken with the NA48 experiment at the CERN SPS in 1999, 730 candidates of the weak radiative hyperon decay $\Xi^{0} \to \Lambda\gamma$ have been found with an estimated background of $58 \pm 8$ events. From these events the $\Xi^{0} \to \Lamb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od________65::9aa986eef39626af347416d74ea0ebae
http://cds.cern.ch/record/706531