New precise measurements of the Ξ0→Λγ and Ξ0→Σ0γ decay asymmetries

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

doi:10.1016/j.physletb.2010.08.046

New precise measurements of the Ξ⁰→Λγ and Ξ⁰→Σ⁰γ decay asymmetries

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

^*Corresponding author for this work

Physics and Astronomy

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9 Scopus citations

Abstract

The decay asymmetries of the weak radiative hyperon decays Ξ⁰→Λγ and Ξ⁰→Σ⁰γ have been measured with high precision using data of the NA48/1 experiment at CERN. From about 52 000 Ξ⁰→Λγ and 15 000 Ξ⁰→Σ⁰γ decays, we obtain for the decay asymmetries α_Ξ0→Λγ=-0.704±0.019_stat±0.064_syst and α_Ξ0→Σ0γ=-0.729±0.030_stat±0.076_syst, respectively. These results are in good agreement with previous experiments, but more precise.

Original language	English (US)
Pages (from-to)	241-248
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	693
Issue number	3
DOIs	https://doi.org/10.1016/j.physletb.2010.08.046
State	Published - Oct 2010

Keywords

Decay asymmetry
Hyperon

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2010.08.046

Cite this

Batley, J. R., Kalmus, G. E., Lazzeroni, C., Munday, D. J., Patel, M., Slater, M. W., Wotton, S. A., Arcidiacono, R., Bocquet, G., Ceccucci, A., Cundy, D., Doble, N., Falaleev, V., Gatignon, L., Gonidec, A., Grafström, P., Kubischta, W., Mikulec, I., Norton, A., ... Widhalm, L. (2010). New precise measurements of the Ξ⁰→Λγ and Ξ⁰→Σ⁰γ decay asymmetries. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 693(3), 241-248. https://doi.org/10.1016/j.physletb.2010.08.046

@article{482a05bf6f314f2b9183777697728334,

title = "New precise measurements of the Ξ0→Λγ and Ξ0→Σ0γ decay asymmetries",

abstract = "The decay asymmetries of the weak radiative hyperon decays Ξ0→Λγ and Ξ0→Σ0γ have been measured with high precision using data of the NA48/1 experiment at CERN. From about 52 000 Ξ0→Λγ and 15 000 Ξ0→Σ0γ decays, we obtain for the decay asymmetries αΞ0→Λγ=-0.704±0.019stat±0.064syst and αΞ0→Σ0γ=-0.729±0.030stat±0.076syst, respectively. These results are in good agreement with previous experiments, but more precise.",

keywords = "Decay asymmetry, Hyperon",

author = "Batley, {J. R.} and Kalmus, {G. E.} and C. Lazzeroni and Munday, {D. J.} and M. Patel and Slater, {M. W.} and Wotton, {S. A.} and R. Arcidiacono and G. Bocquet and A. Ceccucci and D. Cundy and N. Doble and V. Falaleev and L. Gatignon and A. Gonidec and P. Grafstr{\"o}m and W. Kubischta and I. Mikulec and A. Norton and B. Panzer-Steindel and P. Rubin and H. Wahl and E. Goudzovski and P. Hristov and V. Kekelidze and L. Litov and D. Madigozhin and N. Molokanova and Y. Potrebenikov and S. Stoynev and A. Zinchenko and E. Monnier and E. Swallow and R. Winston and R. Sacco and A. Walker and W. Baldini and A. Gianoli and P. Dalpiaz and Frabetti, {P. L.} and M. Martini and F. Petrucci and M. Savri{\'e} and M. Scarpa and M. Calvetti and G. Collazuol and E. Iacopini and G. Ruggiero and A. Bizzeti and M. Lenti and M. Veltri and M. Behler and K. Eppard and M. Eppard and A. Hirstius and K. Kleinknecht and U. Koch and P. Marouelli and L. Masetti and U. Moosbrugger and Morales, {C. Morales} and A. Peters and R. Wanke and A. Winhart and A. Dabrowski and Martin, {T. Fonseca} and M. Velasco and P. Cenci and P. Lubrano and M. Pepe and G. Anzivino and E. Imbergamo and G. Lamanna and A. Michetti and A. Nappi and Petrucci, {M. C.} and M. Piccini and M. Valdata and C. Cerri and R. Fantechi and F. Costantini and L. Fiorini and S. Giudici and G. Pierazzini and M. Sozzi and I. Mannelli and C. Cheshkov and Cheze, {J. B.} and {De Beer}, M. and P. Debu and G. Gouge and G. Marel and E. Mazzucato and B. Peyaud and B. Vallage and M. Holder and A. Maier and M. Ziolkowski and C. Biino and N. Cartiglia and F. Marchetto and N. Pastrone and M. Clemencic and Lopez, {S. Goy} and E. Menichetti and W. Wislicki and H. Dibon and M. Jeitler and M. Markytan and G. Neuhofer and L. Widhalm",

year = "2010",

month = oct,

doi = "10.1016/j.physletb.2010.08.046",

language = "English (US)",

volume = "693",

pages = "241--248",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "3",

}

Batley, JR, Kalmus, GE, Lazzeroni, C, Munday, DJ, Patel, M, Slater, MW, Wotton, SA, Arcidiacono, R, Bocquet, G, Ceccucci, A, Cundy, D, Doble, N, Falaleev, V, Gatignon, L, Gonidec, A, Grafström, P, Kubischta, W, Mikulec, I, Norton, A, Panzer-Steindel, B, Rubin, P, Wahl, H, Goudzovski, E, Hristov, P, Kekelidze, V, Litov, L, Madigozhin, D, Molokanova, N, Potrebenikov, Y, Stoynev, S, Zinchenko, A, Monnier, E, Swallow, E, Winston, R, Sacco, R, Walker, A, Baldini, W, Gianoli, A, Dalpiaz, P, Frabetti, PL, Martini, M, Petrucci, F, Savrié, M, Scarpa, M, Calvetti, M, Collazuol, G, Iacopini, E, Ruggiero, G, Bizzeti, A, Lenti, M, Veltri, M, Behler, M, Eppard, K, Eppard, M, Hirstius, A, Kleinknecht, K, Koch, U, Marouelli, P, Masetti, L, Moosbrugger, U, Morales, CM, Peters, A, Wanke, R, Winhart, A, Dabrowski, A, Martin, TF, Velasco, M, Cenci, P, Lubrano, P, Pepe, M, Anzivino, G, Imbergamo, E, Lamanna, G, Michetti, A, Nappi, A, Petrucci, MC, Piccini, M, Valdata, M, Cerri, C, Fantechi, R, Costantini, F, Fiorini, L, Giudici, S, Pierazzini, G, Sozzi, M, Mannelli, I, Cheshkov, C, Cheze, JB, De Beer, M, Debu, P, Gouge, G, Marel, G, Mazzucato, E, Peyaud, B, Vallage, B, Holder, M, Maier, A, Ziolkowski, M, Biino, C, Cartiglia, N, Marchetto, F, Pastrone, N, Clemencic, M, Lopez, SG, Menichetti, E, Wislicki, W, Dibon, H, Jeitler, M, Markytan, M, Neuhofer, G & Widhalm, L 2010, 'New precise measurements of the Ξ⁰→Λγ and Ξ⁰→Σ⁰γ decay asymmetries', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 693, no. 3, pp. 241-248. https://doi.org/10.1016/j.physletb.2010.08.046

TY - JOUR

T1 - New precise measurements of the Ξ0→Λγ and Ξ0→Σ0γ decay asymmetries

AU - Batley, J. R.

AU - Kalmus, G. E.

AU - Lazzeroni, C.

AU - Munday, D. J.

AU - Patel, M.

AU - Slater, M. W.

AU - Wotton, S. A.

AU - Arcidiacono, R.

AU - Bocquet, G.

AU - Ceccucci, A.

AU - Cundy, D.

AU - Doble, N.

AU - Falaleev, V.

AU - Gatignon, L.

AU - Gonidec, A.

AU - Grafström, P.

AU - Kubischta, W.

AU - Mikulec, I.

AU - Norton, A.

AU - Panzer-Steindel, B.

AU - Rubin, P.

AU - Wahl, H.

AU - Goudzovski, E.

AU - Hristov, P.

AU - Kekelidze, V.

AU - Litov, L.

AU - Madigozhin, D.

AU - Molokanova, N.

AU - Potrebenikov, Y.

AU - Stoynev, S.

AU - Zinchenko, A.

AU - Monnier, E.

AU - Swallow, E.

AU - Winston, R.

AU - Sacco, R.

AU - Walker, A.

AU - Baldini, W.

AU - Gianoli, A.

AU - Dalpiaz, P.

AU - Frabetti, P. L.

AU - Martini, M.

AU - Petrucci, F.

AU - Savrié, M.

AU - Scarpa, M.

AU - Calvetti, M.

AU - Collazuol, G.

AU - Iacopini, E.

AU - Ruggiero, G.

AU - Bizzeti, A.

AU - Lenti, M.

AU - Veltri, M.

AU - Behler, M.

AU - Eppard, K.

AU - Eppard, M.

AU - Hirstius, A.

AU - Kleinknecht, K.

AU - Koch, U.

AU - Marouelli, P.

AU - Masetti, L.

AU - Moosbrugger, U.

AU - Morales, C. Morales

AU - Peters, A.

AU - Wanke, R.

AU - Winhart, A.

AU - Dabrowski, A.

AU - Martin, T. Fonseca

AU - Velasco, M.

AU - Cenci, P.

AU - Lubrano, P.

AU - Pepe, M.

AU - Anzivino, G.

AU - Imbergamo, E.

AU - Lamanna, G.

AU - Michetti, A.

AU - Nappi, A.

AU - Petrucci, M. C.

AU - Piccini, M.

AU - Valdata, M.

AU - Cerri, C.

AU - Fantechi, R.

AU - Costantini, F.

AU - Fiorini, L.

AU - Giudici, S.

AU - Pierazzini, G.

AU - Sozzi, M.

AU - Mannelli, I.

AU - Cheshkov, C.

AU - Cheze, J. B.

AU - De Beer, M.

AU - Debu, P.

AU - Gouge, G.

AU - Marel, G.

AU - Mazzucato, E.

AU - Peyaud, B.

AU - Vallage, B.

AU - Holder, M.

AU - Maier, A.

AU - Ziolkowski, M.

AU - Biino, C.

AU - Cartiglia, N.

AU - Marchetto, F.

AU - Pastrone, N.

AU - Clemencic, M.

AU - Lopez, S. Goy

AU - Menichetti, E.

AU - Wislicki, W.

AU - Dibon, H.

AU - Jeitler, M.

AU - Markytan, M.

AU - Neuhofer, G.

AU - Widhalm, L.

PY - 2010/10

Y1 - 2010/10

N2 - The decay asymmetries of the weak radiative hyperon decays Ξ0→Λγ and Ξ0→Σ0γ have been measured with high precision using data of the NA48/1 experiment at CERN. From about 52 000 Ξ0→Λγ and 15 000 Ξ0→Σ0γ decays, we obtain for the decay asymmetries αΞ0→Λγ=-0.704±0.019stat±0.064syst and αΞ0→Σ0γ=-0.729±0.030stat±0.076syst, respectively. These results are in good agreement with previous experiments, but more precise.

AB - The decay asymmetries of the weak radiative hyperon decays Ξ0→Λγ and Ξ0→Σ0γ have been measured with high precision using data of the NA48/1 experiment at CERN. From about 52 000 Ξ0→Λγ and 15 000 Ξ0→Σ0γ decays, we obtain for the decay asymmetries αΞ0→Λγ=-0.704±0.019stat±0.064syst and αΞ0→Σ0γ=-0.729±0.030stat±0.076syst, respectively. These results are in good agreement with previous experiments, but more precise.

KW - Decay asymmetry

KW - Hyperon

UR - http://www.scopus.com/inward/record.url?scp=77956878049&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956878049&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2010.08.046

DO - 10.1016/j.physletb.2010.08.046

M3 - Article

AN - SCOPUS:77956878049

SN - 0370-2693

VL - 693

SP - 241

EP - 248

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3

ER -