Search for a narrow baryonic state decaying to pKS                      0 and pKS                      0 in deep inelastic scattering at HERA

ZEUS Collaboration

doi:10.1016/j.physletb.2016.06.001

Search for a narrow baryonic state decaying to pK_S ⁰ and pK_S ⁰ in deep inelastic scattering at HERA

ZEUS Collaboration

Department of Health Sciences

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Abstract

A search for a narrow baryonic state in the pK_S ⁰ and pK_S ⁰ system has been performed in ep collisions at HERA with the ZEUS detector using an integrated luminosity of 358pb^-1 taken in 2003-2007. The search was performed with deep inelastic scattering events at an ep centre-of-mass energy of 318GeV for exchanged photon virtuality, Q², between 20 and 100GeV². Contrary to evidence presented for such a state around 1.52 GeV in a previous ZEUS analysis using a sample of 121 pb^-1 taken in 1996-2000, no resonance peak was found in the p(p)K_S ⁰ invariant-mass distribution in the range 1.45-1.7 GeV. Upper limits on the production cross section are set.

Original language	English
Pages (from-to)	446-453
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	759
DOIs	https://doi.org/10.1016/j.physletb.2016.06.001
Publication status	Published - 10 Aug 2016

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10.1016/j.physletb.2016.06.001

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@article{2d52dd9150a24c6dbce22917d112fb40,

title = "Search for a narrow baryonic state decaying to pKS 0 and pKS 0 in deep inelastic scattering at HERA",

abstract = "A search for a narrow baryonic state in the pKS 0 and pKS 0 system has been performed in ep collisions at HERA with the ZEUS detector using an integrated luminosity of 358pb-1 taken in 2003-2007. The search was performed with deep inelastic scattering events at an ep centre-of-mass energy of 318GeV for exchanged photon virtuality, Q2, between 20 and 100GeV2. Contrary to evidence presented for such a state around 1.52 GeV in a previous ZEUS analysis using a sample of 121 pb-1 taken in 1996-2000, no resonance peak was found in the p(p)KS 0 invariant-mass distribution in the range 1.45-1.7 GeV. Upper limits on the production cross section are set.",

author = "\{ZEUS Collaboration\} and H. Abramowicz and I. Abt and L. Adamczyk and M. Adamus and S. Antonelli and V. Aushev and O. Behnke and U. Behrens and A. Bertolin and S. Bhadra and I. Bloch and Boos, \{E. G.\} and I. Brock and Brook, \{N. H.\} and R. Brugnera and A. Bruni and Bussey, \{P. J.\} and A. Caldwell and M. Capua and Catterall, \{C. D.\} and J. Chwastowski and J. Ciborowski and R. Ciesielski and Cooper-Sarkar, \{A. M.\} and M. Corradi and Dementiev, \{R. K.\} and Devenish, \{R. C.E.\} and S. Dusini and B. Foster and G. Gach and E. Gallo and A. Garfagnini and A. Geiser and A. Gizhko and Gladilin, \{L. K.\} and Golubkov, \{Yu A.\} and G. Grzelak and M. Guzik and C. Gwenlan and W. Hain and O. Hlushchenko and D. Hochman and R. Hori and Ibrahim, \{Z. A.\} and Y. Iga and M. Ishitsuka and F. Januschek and Jomhari, \{N. Z.\} and I. Kadenko and M. Ruspa",

note = "Publisher Copyright: {\textcopyright} 2016 The Author(s).",

year = "2016",

month = aug,

day = "10",

doi = "10.1016/j.physletb.2016.06.001",

language = "English",

volume = "759",

pages = "446--453",

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

issn = "0370-2693",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Search for a narrow baryonic state decaying to pKS 0 and pKS 0 in deep inelastic scattering at HERA

AU - ZEUS Collaboration

AU - Abramowicz, H.

AU - Abt, I.

AU - Adamczyk, L.

AU - Adamus, M.

AU - Antonelli, S.

AU - Aushev, V.

AU - Behnke, O.

AU - Behrens, U.

AU - Bertolin, A.

AU - Bhadra, S.

AU - Bloch, I.

AU - Boos, E. G.

AU - Brock, I.

AU - Brook, N. H.

AU - Brugnera, R.

AU - Bruni, A.

AU - Bussey, P. J.

AU - Caldwell, A.

AU - Capua, M.

AU - Catterall, C. D.

AU - Chwastowski, J.

AU - Ciborowski, J.

AU - Ciesielski, R.

AU - Cooper-Sarkar, A. M.

AU - Corradi, M.

AU - Dementiev, R. K.

AU - Devenish, R. C.E.

AU - Dusini, S.

AU - Foster, B.

AU - Gach, G.

AU - Gallo, E.

AU - Garfagnini, A.

AU - Geiser, A.

AU - Gizhko, A.

AU - Gladilin, L. K.

AU - Golubkov, Yu A.

AU - Grzelak, G.

AU - Guzik, M.

AU - Gwenlan, C.

AU - Hain, W.

AU - Hlushchenko, O.

AU - Hochman, D.

AU - Hori, R.

AU - Ibrahim, Z. A.

AU - Iga, Y.

AU - Ishitsuka, M.

AU - Januschek, F.

AU - Jomhari, N. Z.

AU - Kadenko, I.

AU - Ruspa, M.

PY - 2016/8/10

Y1 - 2016/8/10

N2 - A search for a narrow baryonic state in the pKS 0 and pKS 0 system has been performed in ep collisions at HERA with the ZEUS detector using an integrated luminosity of 358pb-1 taken in 2003-2007. The search was performed with deep inelastic scattering events at an ep centre-of-mass energy of 318GeV for exchanged photon virtuality, Q2, between 20 and 100GeV2. Contrary to evidence presented for such a state around 1.52 GeV in a previous ZEUS analysis using a sample of 121 pb-1 taken in 1996-2000, no resonance peak was found in the p(p)KS 0 invariant-mass distribution in the range 1.45-1.7 GeV. Upper limits on the production cross section are set.

AB - A search for a narrow baryonic state in the pKS 0 and pKS 0 system has been performed in ep collisions at HERA with the ZEUS detector using an integrated luminosity of 358pb-1 taken in 2003-2007. The search was performed with deep inelastic scattering events at an ep centre-of-mass energy of 318GeV for exchanged photon virtuality, Q2, between 20 and 100GeV2. Contrary to evidence presented for such a state around 1.52 GeV in a previous ZEUS analysis using a sample of 121 pb-1 taken in 1996-2000, no resonance peak was found in the p(p)KS 0 invariant-mass distribution in the range 1.45-1.7 GeV. Upper limits on the production cross section are set.

UR - https://www.scopus.com/pages/publications/84974855850

U2 - 10.1016/j.physletb.2016.06.001

DO - 10.1016/j.physletb.2016.06.001

M3 - Article

SN - 0370-2693

VL - 759

SP - 446

EP - 453

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

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

ER -

Search for a narrow baryonic state decaying to pK_S ⁰ and pK_S ⁰ in deep inelastic scattering at HERA

Abstract

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