Limits on contact interactions and leptoquarks at HERA

doi:10.1103/PhysRevD.99.092006

Limits on contact interactions and leptoquarks at HERA

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Abstract

High-precision HERA data corresponding to a luminosity of around 1 fb-1 have been used in the framework of eeqq contact interactions (CI) to set limits on possible high-energy contributions beyond the Standard Model to electron-quark scattering. Measurements of the inclusive deep inelastic cross sections in neutral and charged current ep scattering were considered. The analysis of the ep data has been based on simultaneous fits of parton distribution functions including contributions of CI couplings to ep scattering. Several general CI models and scenarios with heavy leptoquarks were considered. Improvements in the description of the inclusive HERA data were obtained for a few models. Since a statistically significant deviation from the Standard Model cannot be established, limits in the TeV range were set on all models considered.

Original language	English
Article number	092006
Journal	Physical Review D
Volume	99
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.99.092006
State	Published - 1 May 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.99.092006

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@article{07612534efac49c0a16ca2b605059497,

title = "Limits on contact interactions and leptoquarks at HERA",

abstract = "High-precision HERA data corresponding to a luminosity of around 1 fb-1 have been used in the framework of eeqq contact interactions (CI) to set limits on possible high-energy contributions beyond the Standard Model to electron-quark scattering. Measurements of the inclusive deep inelastic cross sections in neutral and charged current ep scattering were considered. The analysis of the ep data has been based on simultaneous fits of parton distribution functions including contributions of CI couplings to ep scattering. Several general CI models and scenarios with heavy leptoquarks were considered. Improvements in the description of the inclusive HERA data were obtained for a few models. Since a statistically significant deviation from the Standard Model cannot be established, limits in the TeV range were set on all models considered.",

author = "H. Abramowicz and I. Abt and L. Adamczyk and M. Adamus and R. Aggarwal and S. Antonelli and V. Aushev and O. Behnke and U. Behrens and A. Bertolin and I. Bloch 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 J. Ferrando and B. Foster and E. Gallo and A. Garfagnini and A. Geiser and A. Gizhko and Gladilin, \{L. K.\} and Golubkov, \{Yu A.\} and G. Grzelak and C. Gwenlan and O. Hlushchenko and D. Hochman and Ibrahim, \{Z. A.\} and Y. Iga and Jomhari, \{N. Z.\} and I. Kadenko and S. Kananov and U. Karshon and P. Kaur and D. Kisielewska and R. Klanner and U. Klein and Korzhavina, \{I. A.\}",

note = "Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2019",

month = may,

day = "1",

doi = "10.1103/PhysRevD.99.092006",

language = "English",

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T1 - Limits on contact interactions and leptoquarks at HERA

AU - Abramowicz, H.

AU - Abt, I.

AU - Adamczyk, L.

AU - Adamus, M.

AU - Aggarwal, R.

AU - Antonelli, S.

AU - Aushev, V.

AU - Behnke, O.

AU - Behrens, U.

AU - Bertolin, A.

AU - Bloch, I.

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 - Ferrando, J.

AU - Foster, B.

AU - Gallo, E.

AU - Garfagnini, A.

AU - Geiser, A.

AU - Gizhko, A.

AU - Gladilin, L. K.

AU - Golubkov, Yu A.

AU - Grzelak, G.

AU - Gwenlan, C.

AU - Hlushchenko, O.

AU - Hochman, D.

AU - Ibrahim, Z. A.

AU - Iga, Y.

AU - Jomhari, N. Z.

AU - Kadenko, I.

AU - Kananov, S.

AU - Karshon, U.

AU - Kaur, P.

AU - Kisielewska, D.

AU - Klanner, R.

AU - Klein, U.

AU - Korzhavina, I. A.

N1 - Publisher Copyright: © 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the »https://creativecommons.org/licenses/by/4.0/» Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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N2 - High-precision HERA data corresponding to a luminosity of around 1 fb-1 have been used in the framework of eeqq contact interactions (CI) to set limits on possible high-energy contributions beyond the Standard Model to electron-quark scattering. Measurements of the inclusive deep inelastic cross sections in neutral and charged current ep scattering were considered. The analysis of the ep data has been based on simultaneous fits of parton distribution functions including contributions of CI couplings to ep scattering. Several general CI models and scenarios with heavy leptoquarks were considered. Improvements in the description of the inclusive HERA data were obtained for a few models. Since a statistically significant deviation from the Standard Model cannot be established, limits in the TeV range were set on all models considered.

AB - High-precision HERA data corresponding to a luminosity of around 1 fb-1 have been used in the framework of eeqq contact interactions (CI) to set limits on possible high-energy contributions beyond the Standard Model to electron-quark scattering. Measurements of the inclusive deep inelastic cross sections in neutral and charged current ep scattering were considered. The analysis of the ep data has been based on simultaneous fits of parton distribution functions including contributions of CI couplings to ep scattering. Several general CI models and scenarios with heavy leptoquarks were considered. Improvements in the description of the inclusive HERA data were obtained for a few models. Since a statistically significant deviation from the Standard Model cannot be established, limits in the TeV range were set on all models considered.

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DO - 10.1103/PhysRevD.99.092006

M3 - Article

AN - SCOPUS:85066938831

SN - 2470-0010

VL - 99

JO - Physical Review D

JF - Physical Review D

IS - 9

M1 - 092006

ER -

Limits on contact interactions and leptoquarks at HERA

Abstract

Bibliographical note

ASJC Scopus subject areas

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