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9. Modelling and Simulating Action Dynamics in Underconstrained Tasks in Virtual Reality

Author

Patric C. Nordbeck, Silva Pl, and Lamb M

Subjects
Action (philosophy), Computer science, Dynamics (music), Human–computer interaction, Virtual reality
Abstract

Consistently achieving a desired level of task performance across contextual conditions requires behavioral adaptability. In this paper we showcase a VR application based on a previous 'in-real-life' task that produces data analyzable for flexibility & stability of body movements and correlated performance.

Published
2021

10. MITOCHONDRIA ISOLATED FROM MESENCHYMAL STROMAL CELLS REDUCE LUNGAND DISTAL ORGAN INJURY IN EXPERIMENTAL SEPSIS

Author

Carvalho, LRP, primary, Abreu, SC, additional, Castro, LL, additional, Silva, LHA, additional, Nogueira, CMB, additional, Braga, CL, additional, Silva, PM, additional, Vieira, JB, additional, Santos, RT, additional, Cabral, MR, additional, Teixeira-Pinheiro, LC, additional, Nascimento-dos-Santos, G, additional, Ferreira, ES, additional, Khoury, M, additional, Weiss, DJ, additional, Lopes-Pacheco, M, additional, Silva, PL, additional, Cruz, FF, additional, and Rocco, PRM, additional

Published
2021
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18. Proposal of a Standard for the Condemnation for Turkey Carcasses Due to Fowlpox

Author

Ferreira, BC, Couto, RM, Ecco, R, Coelho, HE, Rossi, DA, Beletti, ME, and Silva, PL

Subjects
animal structures, SIF, Condemnations, processing plant, Fowlpox
Abstract

This study aimed at proposing a new technical criteria for condemnation of turkey carcasses due to fowlpox in turkeys as a contribution for the work of the Brazilian Federal Meat Inspection Service. Skin samples from 30 carcasses of a flock of 840 turkeys (Meleagris gallopavo), previously vaccinated for fowlpox and slaughtered in June 2013, were collected. Samples were submitted to histological examination under light microscopy. The virus was identified using standard PCR techniques. The main histological findings were hyperplasia and hydropic degeneration of the epithelium and the presence of intracytoplasmic eosinophilic inclusion bodies. PCR results yielded 83.3% positive and 16.7% negative samples. Fowlpox virus is species specific, and there are no reports of its occurrence in mammals. The macroscopic and microscopic findings of the skin lesions do not justify the total condemnation of carcasses of poultry affected with fowlpox, except in cases of cachexia or repulsive appearance, as established by SIF regulation.

Published
2016

19. Effects of metoclopramide-induced hyperprolactinemia on the prolactin and prolactin receptor expression of murine adrenal

Author

Gustavo Arantes Rosa Maciel, Edmund Chada Baracat, José Maria Soares-Jr, Tommaso Simoncini, da Silva Pl, Katia Candido Carvalho, and do Amaral Vc

Subjects
medicine.medical_specialty, Metoclopramide, medicine.drug_class, Receptors, Prolactin, Endocrinology, Diabetes and Metabolism, medicine.medical_treatment, Ovariectomy, Biology, Mice, Endocrinology, Internal medicine, Receptors, Adrenal Glands, medicine, Animals, Saline, Progesterone, Adrenal gland, Estradiol, Animal, estrogens, hormone replacement therapy, Disease Models, Animal, Estrogens, Female, Hyperprolactinemia, Immunohistochemistry, Prolactin, Obstetrics and Gynecology, Prolactin receptor, Diabetes and Metabolism, medicine.anatomical_structure, Estrogen, Disease Models, hormones, hormone substitutes, and hormone antagonists, Immunostaining, medicine.drug
Abstract

The aim of this study was to evaluate the effects of metoclopramide-induced hyperprolactinemia on the prolactin (PRL) and prolactin receptor's (PRLR) expression in the adrenal. For this purpose, a total of 12 animals with intact ovaries were allocated to two groups: G1 (saline solution) and G2 (metoclopramide). A total of 30 oophorectomized animals was randomized to five subgroups: G3 (saline solution), G4 (metoclopramide), G5 (metoclopramide + 17β-estradiol), G6 (metoclopramide + progesterone), and G7 (metoclopramide + 17β-estradiol + progesterone). Immunohistochemical analyses were evaluated semi-quantitatively. For PRLR, the area fraction of labeled cells (ALC) varied from 1 (0-10%) to 3 (> 50%). Based on the mean of the immunostaining intensity, G2 and G4 showed strong expression; G6 and G7 presented a mild reaction; and G1, G3, and G5 exhibited a weak reaction. Concerning PRL, the ALC varied from 1 (0-10%) to 3 (> 50%), and groups G6 and G7 showed a strong reaction; G2, G4, and G5 showed a mild reaction; and G1 and G3 exhibited a weak reaction. These findings suggest that metoclopramide-induced hyperprolactinemia increases PRL expression in the adrenal glands of mice. Furthermore, progesterone alone or in association with estrogen also increases PRL expression, but to a lesser extent.

Published
2015

21. Antimicrobial effect of turmeric (Curcuma longa) on chicken breast meat contamination

Author

Lourenço, TC, Mendonça, EP, Nalevaiko, PC, Melo, RT, Silva, PL, and Rossi, DA

Subjects
Staphylococcus aureus, Escherichia coli, Turmeric, bacterial growth
Abstract

The aim of this study was to evaluate the efficacy of turmeric (Curcuma longa), also known in Brazil as saffron, on the reduction of Staphylococcus aureus and Escherichia coli counts in chicken meat. Forty breast meat samples were divided in two groups (A and B). In group A, 10³-10(4)E. coli (ATCC 25922) cells were inoculated and group B samples were inoculated with 10(4)-10(5)S. aureus (ATCC 9801) cells, after which each group was divided in three samples. The first sample was analyzed immediately after inoculation. The second sample (control group) was stored at 4 ºC for 48 hours and turmeric at 1% (w/w) was added to the third sample, which was homogenized and then stored under the same conditions as the second sample. E. coli and S. aureus were enumerated in all samples. Mean bacterial counts determined for the control samples and for the samples with turmeric addition after 48h of storage were 1.83 x 10(4) CFU g-1 and 1.80 x 10(4) CFU g-1 for S. aureus, and 9.36 x 10³ CFU g-1 and 7.25 x 10³ CFU g-1 for E. coli, respectively. The results showed that there was no significant reduction in bacterial counts with the addition of 1% turmeric to chicken breast meat.

Published
2013

22. Effects of inverting the position of layers eggs during storage on hatchery performance parameters

Author

Lima, JCS de, Silva, PL, Coelho, LR, Borges, MS, Freitas, AG de, and Fonseca, BB

Subjects
egg position, embryonic structures, layer breeders, hatchery performance, Storage, hatchling weight
Abstract

Storing hatchable eggs is a common practice in commercial hatcheries. However, storage time may negative effects on several performance parameters. An experiment was carried out to evaluate inverting egg position during storage of eggs laid by young and old layer breeders. Fertile eggs of 32 and 58-week-old breeders were stored for seven, 14, and 21 days at 18ºC ± 2ºC and 80% ± 10% relative humidity (RU). The following parameters were evaluated: egg weight loss, hatchability and hatchling weight, and embryodiagnosis results. Eggs stored with the small end up lost less weight during storage compared with the control eggs. Storing eggs for 14 days with the small end up reduced early embryo mortality, improving hatchability. In addition, hatchling weight increased. These results show that the detrimental effects of long storage periods may be alleviated when eggs are stored with the small end up to 14 days of storage.

Published
2012

23. Measurement of K-mu 3(0) form factors

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, RS, Gershon, TJ, Hay, B, Kalmus, GE, Lazzeroni, C, Munday, DJ, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Doenszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstroem, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, Panzer-Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Hristov, P, Kekelidze, V, Litov, L, Madigozhin, D, Molokanova, N, Potrebenikov, Y, Stoynev, S, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Ruggiero, G, Veltri, M, Becker, HG, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Koepke, L, da Silva, PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, SA, Schoenharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, I, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Carosi, R, Casali, R, Cerri, C, Cirilli, A, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac, RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Bernhard, R, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and Collaboration, N

Abstract

This Letter reports on a new high precision measurement of the form factors of the KL → π± μ∓ νμ decay. The data sample of about 2.3 × 106 events was recorded in 1999 by the NA48 experiment at CERN. Studying the Dalitz plot density we measured a linear, λ+′ = (20.5 ± 2.2stat ± 2.4syst) × 10-3, and a quadratic, λ+″ = (2.6 ± 0.9stat ± 1.0syst) × 10-3 term in the power expansion of the vector form factor. No evidence was found for a second order term for the scalar form factor; the linear slope was determined to be λ0 = (9.5 ± 1.1stat ± 0.8syst) × 10-3. Using a linear fit our results were: λ+ = (26.7 ± 0.6stat ± 0.8syst) × 10-3 and λ0 = (11.7 ± 0.7stat ± 1.0syst) × 10-3. A pole fit of the form factors yields: mV = (905 ± 9stat ± 17syst) MeV / c2 and mS = (1400 ± 46stat ± 53syst) MeV / c2. © 2007 Elsevier B.V. All rights reserved.

Published
2007

24. Measurement of the ratio Gamma(K-L -> pi(+)pi(-))/Gamma(K-L -> pi(+/-)e(-/+)nu) and extraction of the CP violation parameter vertical bar eta(+-)vertical bar

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, RS, Gershon, TJ, Hay, B, Kalmus, GE, Lazzeroni, C, Munday, DJ, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Donszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstroem, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, Panzer-Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Litov, L, Madigozhin, D, Molokanova, N, Potrebenikov, Y, Stoynev, S, Tatishvili, G, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, HG, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Koepke, L, da Silva, PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, SA, Schoenharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, A, Piccini, M, Bertanza, L, Carosi, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac, RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and Collaboration, N

Published
2007

25. Measurement of the ratio Γ(KL -> π+π-) / Γ(KL-> π±e-+ν) and extraction of the CP violation parameter |η+

Author

Lai, Adriano, Marras, Davide, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar Donszelmann, T, Cundy, D, D'Agostini, Giulio, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Norton Alan Robert, Palestini, S, Panzer Steindel, B, Taureg, H, Velasco, M, Wahl, Heinrich, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Litov, L, Madigozhin, D, Molokanova, N, Potrebenikov, Y, Stoynev, S, Tatishvili, G, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, Marco, Dalpiaz, Pietro, Duclos, Jean, Frabetti, Pierluigi, Gianoli, Alberto, Martini, Marco, Petrucci, Ferruccio, Savrie', Mauro, Bizzeti, Andrea, Calvetti, Mario, Collazuol, Gianmaria, Graziani, Giacomo, Iacopini, Enrico, Lenti, Massimo, Martelli, Filippo, Veltri, Michele, Becker, Hg, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, Iconomidou Fayard, L, Ocariz, J, Unal, G, Wingerter Seez, I, Anzivino, Giuseppina, Cenci, Patrizia, Imbergamo, Ermanno, Lubrano, Pasquale, Mestvirishvili, A, Nappi, Aniello, Pepe, Antonio, Piccini, Mauro, Bertanza, Luciano, Carosi, Roberto, Cerri, Claudio, Cirilli, Manuela, Costantini, Flavio, Fantechi, Riccardo, Giudici, Sergio, Mannelli, Italo, Pierazzini, Giuseppe, Sozzi, Marco, Cheze, Jb, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, Roberta, Biino, Cristina, Cartiglia, Nicolo', Guida, Roberto, Marchetto Flavio Pietro, Menichetti, Ezio, Pastrone, Nadia, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Published
2007

26. Influence of child-rearing practices on infants' motor development between the sixth and twelfth months of life

Author

Silva,PL, Santos,DCC, and Gonçalves,VMG

Subjects
desenvolvimento motor, lactente, motor development, ambiente, práticas maternas, infant, environment, child-rearing practices
Abstract

CONTEXTO: Práticas maternas são comportamentos específicos, por meio dos quais as mães/cuidadores desempenham suas tarefas maternais. Estas práticas poderiam influenciar o desenvolvimento motor de lactentes. OBJETIVO: verificar a influência de práticas maternas, utilizadas no cuidado diário de lactentes saudáveis, sobre seu desenvolvimento motor do 6º ao 12º meses de vida. MÉTODO: Selecionados 14 lactentes, nascidos a termo e saudáveis, avaliados longitudinalmente no 6º, 9º e 12º meses de vida, utilizando-se a Alberta Infant Motor Scale. Em cada avaliação/idade a mãe respondeu a um questionário fechado sobre práticas, predominantemente adotadas no cuidado diário do lactente durante os períodos de vigília. Considerou-se neste estudo a postura predominantemente adotada pelo lactente, local preferencial de permanência e a forma de carregar o lactente no colo. RESULTADOS: No 9º mês de vida o desempenho motor dos lactentes foi influenciado positivamente pela predominância na postura de quatro apoios, em relação à sentada e prono ou supino e pela permanência no chão em relação ao carrinho de bebê. No 12º mês houve influência positiva da predominância na postura de quatro apoios e em pé. A postura predominante no 6º mês de vida e a forma de carregar o lactente no 6º, 9º e 12º meses de vida não influenciaram o desempenho motor do grupo estudado. CONCLUSÃO: Os resultados sugerem que as práticas que estimulam a adoção da postura de quatro apoios e a utilização do chão como local de permanência influenciam positivamente o desenvolvimento motor de lactentes saudáveis a partir do 6º mês de vida. BACKGROUND: Child-rearing practices are defined as specific behavioral patterns used during maternal duties. These practices could influence infants' motor development. OBJECTIVE: To verify the influence of daily child-rearing practices on the motor development of healthy infants from their sixth to twelfth months of life. METHOD: Fourteen healthy full-term infants were selected and longitudinally assessed at the ages of six, nine and twelve months using the Alberta Infant Motor Scale. At each assessment, the mothers answered a closed questionnaire about their main daily childcare practices when the infant was awake. The infants' predominant posture, the places where they were usually kept and how mothers carried the infants in their arms were evaluated. RESULTS: Motor performance at the ninth month was positively influenced by predominance of the hands-and-knees crawling posture, in relation to sitting, prone or supine postures, and by staying on the floor in relation to being in a baby buggy. At the twelfth month, it was positively influenced by hands-and-knees crawling and standing postures. The predominant posture at the sixth month and the way of carrying the infants at six, nine and twelve months did not influence motor development in the study group. CONCLUSIONS: The results suggest that practices that stimulate adoption of the hands-and-knees crawling posture, and utilization of the floor as a place to keep the infant, positively influence the motor development of healthy infants from six months of age onwards.

Published
2006

27. Measurement of the K-L -> e(+)e(-)e(+)e(-) decay rate

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Needham, Md, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, Panzer Steindel, B, Tatishvili, G, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, Pl, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Ruggiero, G, Becker, Hg, Eppard, M, Fox, H, Eppard, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva PL, Marouelli, P, Melzer Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, Iconomidou Fayard, L, Ocariz, J, Unal, G, Wingerter Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lamanna, Gianluca, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Casali, R, Cerri, C, Cirilli, M, Costantini, Flavio, Fantechi, R, Fiorini, L, Giudici, Sergio, Mannelli, I, Pierazzini, G, Sozzi, MARCO STANISLAO, Cheze, Jb, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Subjects
GAMMA-GAMMA%22">KL->GAMMA-GAMMA, PARITY, ORIGIN, GAMMA-GAMMA%22">KS->GAMMA-GAMMA, BRANCHING RATIO, CP VIOLATION, MESONS, RULE, NEUTRAL KAON, NO, kaon decay
Abstract

The decay rate of the long-lived neutral K meson into the e +e -e +e - final state has been measured with the NA48 detector at the CERN SPS. Using data collected in 1998 and 1999, a total of 200 events has been observed with negligible background. This observation corresponds to a branching ratio of Br(K L→ e +e -e +e -)=(3.30±0.24 stat±0.23 syst±0.10 norm) ×10 -8. © 2005 Elsevier B.V. All rights reserved.

Published
2005

28. Measurement of the radiative K-e3 branching ratio

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, CUHADAR DONSZELMANN, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, PANZER STEINDEL, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Hristov, P, Kekelidze, V, Litov, L, Madigojine, D, Molokanova, N, Potrebenikov, Y, Stoynev, S, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, Marco, Dalpiaz, Pietro, Duclos, J, Frabetti, Pl, Gianoli, Alberto, Martini, Mara, Petrucci, Ferruccio Carlo, Savrie', Mauro, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, Hg, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, DA SILVA PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, ICONOMIDOU FAYARD, L, Ocariz, J, Unal, G, WINGERTER SEEZ, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Marinelli, I, Pierazzini, G, Sozzi, M, Cheze, Jb, Cogan, J, DE BEER, M, Debu, P, Formica, A, DE CASSAGNAC RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, CA NA48 COLLABORATION, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and NA48

Subjects
Nuclear and High Energy Physics, Chiral perturbation theory, Photon, Hadron, FOS: Physical sciences, kaon decay, NEUTRAL KAON, branching ratio, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, mesoni K, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Radiative transfer, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], radiative kaon decays, 010306 general physics, decadimenti radiativi, Physics, 010308 nuclear & particles physics, Branching fraction, K13 DECAYS, Bremsstrahlung, Amplitude, Atomic physics, Particle Physics - Experiment
Abstract

We present a measurement of the relative branching ratio of the decay KL -> pi e nu gamma (Ke3gamma) with respect to KL-> pi e nu (gamma) (Ke3+Ke3gamma) decay. The result is based on observation of 19 000 Ke3gamma and 5.6 x 10^6 Ke3 decays. The value of the branching ratio is Br(Ke3gamma, Egamma^*>30 MeV,theta(e,gamma)^*>20^o)/Br(Ke3)= (0.964+-0.008+0.011-0.009)%. This result agrees with theoretical predictions but is at variance with a recently published result., 13 pages, 7 figures. submitted to Phys. Lett. B

Published
2005

29. Measurement of the branching ratio of the decay K-L ->pi(+/-)e(-/+)upsilon and extraction of the CKM parameter vertical bar V-us vertical bar

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, RS, Gershon, TJ, Hay, B, Kalmus, GE, Lazzeroni, C, Munday, DJ, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Donszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, Panzer-Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Litov, L, Madigojine, D, Molokanova, N, Potrebenikov, Y, Stoynev, S, Tatishvili, G, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, HG, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva, PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, SA, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Fiorini, L, Giudici, S, Lamanna, G, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac, RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and Collaboration, N

Published
2004

30. Measurement of the Xi(0)->Lambda gamma decay asymmetry and branching fraction - NA48 collaboration

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, RS, Gershon, TJ, Hay, B, Kalmus, GE, Lazzeroni, C, Munday, DJ, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Donszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, Panzer-Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tatishvili, G, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, R, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, HG, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva, PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, SA, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac, RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and Collaboration, N

Published
2004

31. First observation of the K-S -> pi(0)gamma gamma decay

Author

Lai, A, Marras, D, Batley, JR, Dosanjh, RS, Gershon, TJ, Kalmus, GE, Lazzeroni, C, Munday, DJ, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Arcidiacono, R, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Donszelmann, T, Cundy, D, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Grafstrom, P, Kubischta, W, Lacourt, A, Norton, A, Panzer-Steindel, B, Tatishvili, G, Wahl, H, Cheshkov, C, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Zinchenko, A, Martin, V, Rubin, P, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Eppard, M, Hirstius, A, Holtz, K, Kleinknecht, K, Koch, U, Kopke, L, da Silva, PL, Marouelli, P, Mestvirishvili, I, Pellmann, I, Peters, A, Schmidt, SA, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Fiorini, L, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, De Beer, M, Debu, P, Derue, F, Formica, A, de Cassagnac, RG, Gouge, G, Marel, G, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Biino, C, Cartiglia, N, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and Collaboration, N

Published
2004

32. Measurement of K-e3(0) form factors RID A-4071-2012

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar Donszelmann, T, Cundy, D, D' Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, Panzer Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Hristov, P, Kekelidze, V, Litov, L, Madigojine, D, Molokanova, N, Potrebenikov, Y, Stoynev, S, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, Pl, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, Hg, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, Iconomidou Fayard, L, Ocariz, J, Unal, G, Wingerter Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, Flavio, Fantechi, R, Giudici, Sergio, Mannelli, I, Pierazzini, G, Sozzi, MARCO STANISLAO, Cheze, Jb, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Published
2004

33. Measurement of the branching ratio and form-factors for the decay K(L) ---> pi+- pi0 e-+ nu(e)(anti-nu(e))

Author

Batley, Jr, Dosanjh, Rs, Gershon, Tj, Kalmus, Ge, Lazzeroni, C, Munday, D, Olaiya, E, Patel, M, Parker, Ma, White, To, Wotton, Sa, Arcidiacono, Roberta, Bocquet, G, Ceccucci, A, Cuhadar Donszelmann, T, Cundy, D, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Grafstrom, P, Kubischta, W, Mikulec, I, Norton Alan Robert, Palestini, S, Wahl, Heinrich, Cheshkov, C, Hristov, P, Kekelidze, V, Litov, L, Madigozhin, D, Molokanova, N, Potrebenikov, Y, Zinchenko, A, Rubin, P, Sacco, Bruno, Walker Paul Andreas, Bettoni, Diego, Calabrese, Roberto, Dalpiaz, Pietro, Duclos, Jean, Frabetti, Pierluigi, Gianoli, Alberto, Martini, Manuele, Masetti, Lorenzo, Petrucci, Ferruccio, Savrie', Mauro, Scarpa, Marcella, Bizzeti, Andrea, Calvetti, Mario, Collazuol, Gianmaria, Iacopini, Enrico, Lenti, Massimo, Martelli, Filippo, Ruggiero, Giuseppe, Veltri, Michele, Eppard, K, Eppard, M, Hirstius, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva PL, Marouelli, P, Mestvirishvili, I, Morales, C, Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Wanke, R, Winhart, A, Chollet, Jc, Fayard, L, Graziani, Giacomo, Iconomidou Fayard, L, Unal, G, Wingerter Seez, I, Anzivino, Giuseppina, Cenci, Patrizia, Imbergamo, Ermanno, Lamanna, Gianluca, Lubrano, Pasquale, Mestvirishvili, A, Michetti, Andrea, Nappi, Aniello, Pepe, Marco, Piccini, Mauro, Valdata, Marisa, Casali, Roberto, Cerri, Claudio, Cirilli, Manuela, Costantini, Flavio, Fantechi, Riccardo, Fiorini, L, Giudici, Sergio, Mannelli, Italo, Pierazzini, Giuseppe, Sozzi, Marco, Cheze, Jb, De Beer, M, Debu, P, Derue, F, Formica, A, Gouge, G, Marel, G, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Biino, Cristina, Cartiglia, Nicolo', Clemencic, Marco, Marchetto Flavio Pietro, Menichetti, Ezio, Pastrone, Nadia, Nassalski, J, Rondio, E, Wislicki, Wojciech, Wronka, S, Dibon, H, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Published
2004

34. Measurement of the branching ratio of the decay K-L ->pi(+/-)e(-/+) neutrino and extraction of the CKM parameter vertical bar V-us vertical bar RID A-4071-2012

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar Donszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, Panzer Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Litov, L, Madigojine, D, Molokanova, N, Potrebenikov, Y, Stoynev, S, Tatishvili, G, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, Pl, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, Hg, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, Iconomidou Fayard, L, Ocariz, J, Unal, G, Wingerter Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Casali, R, Cerri, C, Cirilli, M, Costantini, Flavio, Fantechi, R, Fiorini, L, Giudici, Sergio, Lamanna, Gianluca, Mannelli, I, Pierazzini, G, Sozzi, MARCO STANISLAO, Cheze, Jb, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Published
2004

35. Measurement of the Xi0 --> Lambda gamma decay asymmetry and branching fraction

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, CUHADAR DONSZELMANN, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Norton, A, Palestini, S, PANZER STEINDEL, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tatishvili, G, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, Marco, Dalpiaz, Pietro, Duclos, J, Frabetti, R, Gianoli, Alberto, Martini, Mara, Petrucci, Ferruccio Carlo, Savrie', Mauro, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Becker, Hg, Eppard, K, Eppard, M, Fox, H, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, DA SILVA PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, ICONOMIDOU FAYARD, L, Ocariz, J, Unal, G, WINGERTER SEEZ, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, Jb, Cogan, J, DE BEER, M, Debu, P, Formica, A, DE CASSAGNAC RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and CA NA48 COLLABORATION

Subjects
Xi zero decay, Hyperons, Lambda particle, NO
Published
2004

36. Precise measurements of the K-s -> gamma gamma and K-L -> gamma gamma decay rates

Author

Lai, A, Marras, D, Batley, JR, Dosanjh, RS, Gershon, TJ, Kalmus, GE, Lazzeroni, C, Munday, DJ, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Arcidiacono, R, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Doszelmann, T, Cundy, D, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Grafstrom, P, Kubischta, W, Lacourt, A, Mikulec, I, Norton, A, Panzer-Steindel, B, Tatishvili, G, Wahl, H, Cheshkov, C, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Zinchenko, A, Martin, V, Rubin, P, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Petrucci, E, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Lenti, M, Martelli, F, Veltri, M, Eppard, M, Hirstius, A, Holtz, K, Kleinknecht, K, Koch, U, Kopke, L, da Silva, PL, Marouelli, P, Mestvirishvili, I, Pellmann, I, Peters, A, Schmidt, SA, Schoharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Fiorini, L, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, De Beer, M, Debu, P, Derue, F, Formica, A, de Cassagnac, RG, Gouge, G, Marel, G, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Biino, C, Cartiglia, N, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and Collaboration, N

Published
2003

37. Investigation of K(L,S) --> pi+ pi- e+ e- decays

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Needham, Md, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, Cundy, D, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lenti, M, Luitz, S, Mikulec, I, Norton, A, Palestini, S, Panzer Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Tatishvili, G, Potrebenikov, Y, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, Pl, Gianoli, A, Martini, M, Masetti, L, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Veltri, Michele, Becker, Hg, Eppard, M, Fox, H, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva PL, Marouelli, P, Pellmann, I, Peters, A, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, Iconomidou Fayard, L, Ocariz, J, Unal, G, Wingerter Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, Jb, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Clemencic, M, Marchetto, F, Menichetti, E, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Fischer, G, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Published
2003

38. Search for the decay K-S -> pi(0) gamma gamma

Author

Lai, A, Marras, D, Batley, R, Bevan, A, Dosanjh, RS, Gershon, TJ, Kalmus, GE, Munday, DJ, Olaiya, E, Parker, MA, White, T, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Donszelmann, T, Cundy, D, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Lenti, M, Norton, A, Palestini, S, Panzer-Steindel, B, Tatishvili, G, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tkatchev, A, Zinchenko, A, Knowles, I, Lazzeroni, C, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Masetti, L, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Becker, HG, Eppard, M, Fox, H, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva, PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, SA, Schnoharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac, RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L

Subjects
MESON DECAYS, DIRECT CP VIOLATION, NEUTRAL KAON
Published
2003

39. Investigation of K_L, K_S --> pi+ pi- e+ e- decays

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, RS, Gershon, TJ, Hay, B, Kalmus, GE, Lazzeroni, C, Munday, DJ, Needham, MD, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cundy, D, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lenti, M, Luitz, S, Mikulec, I, Norton, A, Palestini, S, Panzer-Steindel, B, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Tatishvili, G, Potrebenikov, Y, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Masetti, L, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Veltri, M, Becker, HG, Eppard, M, Fox, H, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva, PL, Marouelli, P, Pellmann, I, Peters, A, Schmidt, SA, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac, RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Clemencic, M, Marchetto, F, Menichetti, E, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Fischer, G, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and Collaboration, N

Abstract

The KL → π+π-e +e- and KS → π+π -e+e- decay modes have been studied in detail using the NA48 detector at the CERN SPS. Based on the data collected during the 1998 and 1999 run periods, a sample of 1162 KL → π +π-e+e- candidates has been observed with an expected background level of 36.9 events, yielding the branching ratio measurement BR(KL → π+π -e+e-) = (3.08 ± 0.20) × 10 -7. The distribution of events in the sinφ cosφ variable, where φ is the angle between the π+π- and the e+e- decay planes in the kaon centre of mass, is found to exhibit a large CP-violating asymmetry with the value Aφ = (14.2 ± 3.6)%. For the KS → π+π -e+e- decay channel, 621 candidates have been identified in the 1999 data sample with an estimated background contribution of 0.7 event. The corresponding branching ratio has been determined to be BR(K S → π+π-e+e-) = (4.71 ± 0.32) × 10-5. The combined value of this measurement with the published 1998 result is BR(KS → π +π-e+e-) = (4.69 ± 0.30) × 10-5. No asymmetry is observed in this decay mode. Our results are in good agreement with theoretical predictions based on a phenomenological description of radiative kaon decays. The form factor parameters a1/a2 and g̃M1 in the K L → π+π-e+e- direct emission process as well as the value of the K0 charge radius have been extracted from the data.

Published
2003

40. A measurement of the K-S lifetime

Author

Lai, A, Marras, D, Batley, JR, Bevan, A, Dosanjh, RS, Gershon, TJ, Hay, B, Kalmus, GE, Lazzeroni, C, Munday, DJ, Needham, MD, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Donszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Funk, W, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Lenti, M, Luitz, S, Matheys, JP, Mikulec, I, Norton, A, Palestini, S, Panzer-Steindel, B, Schinzel, D, Tatishvili, G, Taureg, H, Velasco, M, Vossnack, O, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Parsons, H, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Scarpa, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Martelli, F, Veltri, M, Becker, HG, Blumer, H, Coward, D, Eppard, M, Fox, H, Hirstius, A, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva, PL, Marouelli, P, Pellmann, I, Peters, A, Schmidt, SA, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Crepe, S, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Bigi, A, Calafiura, P, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, De Beer, M, Debu, P, Derue, F, Formica, A, de Cassagnac, RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Augustin, I, Bender, M, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, Collaboration, N, Kerec, Hélène, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and NA48

Subjects
Systematic error, Nuclear and High Energy Physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], NA48 EXPERIMENT, CERN, ELECTRONICS, SYSTEM, DECAYS, FOS: Physical sciences, mesoni K, vita media, K meson lifetime, k mesons, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], K short, 010306 general physics, Physics, lifetime, K-meson lifetime, Large Hadron Collider, 010308 nuclear & particles physics, Detector, High Energy Physics::Phenomenology, NA48 experiment, Decay time, Physics::Accelerator Physics, High Energy Physics::Experiment, Particle Physics - Experiment
Abstract

A measurement of the K_S lifetime is presented using data recorded by the NA48 experiment at the CERN-SPS during 1998 and 1999. The K_S lifetime is derived from the ratio of decay time distributions in simultaneous, collinear K_S and K_L beams, giving a result which is approximately independent of the detector acceptance and with reduced systematic errors. The result obtained is tau_S=(0.89598 +- 0.00048 +- 0.00051)x10^(-10) s, where the first error is statistical and the second systematic., 12 pages, 1 figure, to be published in Physics Letters B

Published
2002

41. Precise measurement of the decay K-L ->pi(0)gamma gamma

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Needham, Md, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, CUHADAR DONSZELMANN, T, Cundy, D, D'Agostini, Giulio, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Lenti, M, Luitz, S, Mikulec, I, Norton, A, Palestini, S, PANZER STEINDEL, B, Tatishvili, G, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, Pl, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Veltri, M, Becker, Hg, Eppard, M, Fox, H, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, DA SILVA PL, Maruelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, ICONOMIDOU FAYARD, L, Ocariz, J, Unal, G, WINGERTER SEEZ, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, Jb, Cogan, J, DE BEER, M, Debu, P, Formica, A, DE CASSAGNAC RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Clemencic, M, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Published
2002

42. New measurements of the η and K⁰masses

Author

Lai, A, Marras, D, Batley, Jr, Bevan, Aj, Dosanjh, Rs, Gershon, Tj, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar Donszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Felaleev, V, Funk, W, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Lenti, M, Mikulec, I, Norton, A, Palestini, S, Panzer Steindel, B, Schinzel, D, Tatishvili, G, Taureg, H, Velasco, M, Wahl, H, Cheskov, C, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Zinchenko, A, Martin, Vj, Rubin, P, Sacco, R, Walker, A, Bettoni, D, Calabrese, R, Contabrigo, M, Dalpiaz, P, Duclos, J, Frabetti, Pl, Gianoli, A, Luppi, E, Martini, M, Masetti, L, Petrucci, F, Savrie, M, Scarpa, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Martelli, F, Veltri, M, Becker, Hg, Eppard, M, Fox, H, Hirstius, A, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva PL, Marouelli, P, Mestvirishvili, I, Pellmann, I, Peters, A, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, Iconomidou Fayard, L, Ocariz, J, Unal, G, Wingerter Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lamanna, Gianluca, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Casali, R, Cerri, C, Cirilli, M, Costantini, Flavio, Fantechi, R, Fiorini, L, Giudici, Sergio, Mannelli, I, Pierazzini, G, Sozzi, MARCO STANISLAO, Cheze, Jb, Cogan, J, De Beer, M, Debu, P, Derue, F, Formica, A, Gouge, G, de Cassagnac RG, Marel, G, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Published
2002

43. A precise measurement of the direct CP violation parameter Re(epsilon '/epsilon)

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Needham, Md, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, CUHADAR DONSZELMANN, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Funk, W, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Lenti, M, Luitz, S, Matheys, Jp, Mikulec, I, Norton, A, Palestini, S, PANZER STEINDEL, B, Schinzel, D, Tatishvili, G, Taureg, H, Velasco, M, Vossnack, O, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Parsons, H, Sacco, R, Walker, A, Contalbrigo, Marco, Dalpiaz, Pietro, Duclos, J, Frabetti, Pl, Gianoli, Alberto, Martini, Mara, Petrucci, Ferruccio Carlo, Savrie', Mauro, Scarpa, Marcella, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Martelli, F, Veltri, M, Becker, Hg, Blumer, H, Coward, D, Eppard, M, Fox, H, Hirstius, A, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, DA SILVA PL, Marouelli, P, Pellmann, I, Peters, A, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Crepe, S, Fayard, L, ICONOMIDOU FAYARD, L, Ocariz, J, Unal, G, WINGERTER SEEZ, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Calafiura, P, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Marzulli, V, Pierazzini, G, Sozzi, M, Cheze, Jb, Cogan, J, DE BEER, M, Debu, P, Derue, F, Formica, A, DE CASSAGNAC RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Augustin, I, Bender, M, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szlepor, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and CA NA48 COLLABORAT

Published
2001

44. Search for the decay K-s -> pi(0)e(+)e(-)

Author

Lai, A, Marras, D, Batley, R, Bevan, A, Dosanjh, RS, Gershon, TJ, Kalmus, GE, Hay, B, Munday, DJ, Olaiya, E, Parker, MA, White, TO, Wotton, SA, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar-Donszelmann, T, Cundy, D, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Lenti, M, Norton, A, Palestini, S, Panzer-Steindel, B, Tatishvili, G, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tkatchev, A, Zinchenko, A, Knowles, L, Lazzeroni, C, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, PL, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Becker, HG, Eppard, M, Fox, H, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva, PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, SA, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, JC, Fayard, L, Iconomidou-Fayard, L, Ocariz, J, Unal, G, Wingerter-Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, JB, Cogan, J, De Beer, M, Debu, P, Formica, A, de Cassagnac, RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Mikulec, I, Neuhofer, G, Pernicka, M, Taurok, A, Widhalm, L, and Collaboration, N

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Large Hadron Collider, Branching fraction, decadimenti, Detector, pion, Kaons, CP VIOLATION, KAON, K meson, Nuclear physics, mesoni K, CP violation, Limit (mathematics), radiative decays, Beam (structure), chiral perturbation theory
Abstract

A search for the decay K S →π 0 e + e − has been made using the NA48 detector at the CERN SPS. Using data collected in 1999 during a 40-hour run with a high-intensity KS beam, an upper limit for the branching fraction B (K S →π 0 e + e − ) −7 at 90% confidence level has been obtained.

Published
2001

45. A precise measurement of the direct CP violation parameter Re(ε′/ε)

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Needham, Md, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, Cuhadar Donszelmann, T, Cundy, D, D'Agostini, G, Doble, N, Falaleev, V, Funk, W, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Lenti, M, Luitz, S, Matheys, Jp, Mikulec, I, Norton, A, Palestini, S, Panzer Steindel, B, Schinzel, D, Tatishvili, G, Taureg, H, Velasco, M, Vossnack, O, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Parsons, H, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, Pl, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Scarpa, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Martelli, Filippo, Veltri, Michele, Becker, Hg, Blumer, H, Coward, D, Eppard, M, Fox, H, Hirstius, A, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, da Silva PL, Marouelli, P, Pellmann, I, Peters, A, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Crepe, S, Fayard, L, Iconomidou Fayard, L, Ocariz, J, Unal, G, Wingerter Seez, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Calafiura, P, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Marzulli, V, Pierazzini, G, Sozzi, M, Cheze, Jb, Cogan, J, De Beer, M, Debu, P, Derue, F, Formica, A, de Cassagnac RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Augustin, I, Bender, M, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szlepor, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Subjects
mesoni K, violazione diretta CP
Abstract

The direct CP violation parameter Re(ε′/ε) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. With 3.3 million KL → π0π0 events collected during the 1998 and 1999 running periods, a result of Re(ε′/ε) = (15.0 ± 2.7) × 10-4 has been obtained. The result combined with the published 1997 sample is Re(ε′/ε) = (15.3 ± 2.6) × 10-4.

Published
2001

46. A new measurement of the branching ratio of K-S -> gamma gamma

Author

Lai, A, Marras, D, Bevan, A, Dosanjh, Rs, Gershon, Tj, Hay, B, Kalmus, Ge, Lazzeroni, C, Munday, Dj, Olaiya, E, Parker, Ma, White, To, Wotton, Sa, Barr, G, Bocquet, G, Ceccucci, A, CUHADAR DONSZELMANN, T, Cundy, D, D'Agostini, Giulio, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Gorini, B, Govi, G, Grafstrom, P, Kubischta, W, Lacourt, A, Lenti, M, Mikulec, I, Norton, A, Palestini, S, PANZER STEINDEL, B, Tatishvili, G, Taureg, H, Velasco, M, Wahl, H, Cheshkov, C, Gaponenko, A, Hristov, P, Kekelidze, V, Madigojine, D, Molokanova, N, Potrebenikov, Y, Tkatchev, A, Zinchenko, A, Knowles, I, Martin, V, Sacco, R, Walker, A, Contalbrigo, M, Dalpiaz, P, Duclos, J, Frabetti, Pl, Gianoli, A, Martini, M, Petrucci, F, Savrie, M, Bizzeti, A, Calvetti, M, Collazuol, G, Graziani, G, Iacopini, E, Martelli, F, Veltri, M, Becker, Hg, Eppard, M, Fox, H, Holtz, K, Kalter, A, Kleinknecht, K, Koch, U, Kopke, L, DA SILVA PL, Marouelli, P, Pellmann, I, Peters, A, Renk, B, Schmidt, Sa, Schonharting, V, Schue, Y, Wanke, R, Winhart, A, Wittgen, M, Chollet, Jc, Fayard, L, ICONOMIDOU FAYARD, L, Ocariz, J, Unal, G, WINGERTER SEEZ, I, Anzivino, G, Cenci, P, Imbergamo, E, Lubrano, P, Mestvirishvili, A, Nappi, A, Pepe, M, Piccini, M, Bertanza, L, Carosi, R, Casali, R, Cerri, C, Cirilli, M, Costantini, F, Fantechi, R, Giudici, S, Mannelli, I, Pierazzini, G, Sozzi, M, Cheze, Jb, Cogan, J, DE BEER, M, Debu, P, Formica, A, DE CASSAGNAC RG, Mazzucato, E, Peyaud, B, Turlay, R, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Arcidiacono, R, Biino, C, Cartiglia, N, Guida, R, Marchetto, F, Menichetti, E, Pastrone, N, Nassalski, J, Rondio, E, Szleper, M, Wislicki, W, Wronka, S, Dibon, H, Fischer, G, Jeitler, M, Markytan, M, Neuhofer, G, Pernicka, M, Taurok, A, and Widhalm, L.

Subjects
neutral kaon, kaon decay, branching ratio, DECAYS
Abstract

The decay rate of K(S) → γγ has been measured with the NA48 detector at the CERN SPS. A total of 149 K(S) → γγ events have been observed. The branching ratio is determined to be (2.58 ± 0.36(stat) ± 0.22(sys)) x 10-6. (C) 2000 Elsevier Science B.V.

Published
2000

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