Search for excited electrons in ep collisions at HERA

Aaron, F. D.; Alexa, C.; Andreev, V.; Antunovic, B.; Aplin, S.; Asmone, A.; Astvatsatourov, A.; Bacchetta, A.; Backovic, S.; Baghdasaryan, A.; Baranov, P.; Barrelet, E.; Bartel, W.; Beckingham, M.; Begzsuren, K.; Behnke, O.; Belousov, A.; Berger, N.; Bizot, J. C.; Boenig, M. -O.; Boudry, V.; Bozovic-Jelisavcic, I.; Bracinik, J.; Brandt, G.; Brinkmann, M.; Brisson, V.; Bruncko, D.; Bunyatyan, A.; Buschhorn, G.; Bystritskaya, L.; Campbell, A. J.; Avila, K. B. Cantun; Cassol-Brunner, F.; Cerny, K.; Cerny, V.; Chekelian, V.; Cholewa, A.; Contreras, J. G.; Coughlan, J. A.; Cozzika, G.; Cvach, J.; Dainton, J. B.; Daum, K.; Deak, M.; de Boer, Y.; Delcourt, B.; Del Degan, M.; Delvax, J.; De Roeck, A.; De Wolf, E. A.

Search for excited electrons in ep collisions at HERA

Mark

Aaron, F. D. ; Alexa, C. ; Andreev, V. ; Antunovic, B. ; Aplin, S. ; Asmone, A. ; Astvatsatourov, A. ; Bacchetta, A. ; Backovic, S. and Baghdasaryan, A. , et al. (2008) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 666(2). p.131-139

Abstract: A search for excited electrons is performed using the full e(+/-) p data sample collected by the HI experiment at HERA, corresponding to a total luminosity of 475 pb(-1). The electroweak decays of excited electrons e* -> e gamma, e* -> eZ and e* -> vW with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for excited electron production is found. Mass dependent exclusion limits on e* production cross sections and on the ratio f/Lambda of the coupling to the compositeness scale are derived within gauge mediated models. These limits extend the excluded region compared to previous excited electron searches. The e* production via contact interactions is also addressed for the first time in ep... (More); A search for excited electrons is performed using the full e(+/-) p data sample collected by the HI experiment at HERA, corresponding to a total luminosity of 475 pb(-1). The electroweak decays of excited electrons e* -> e gamma, e* -> eZ and e* -> vW with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for excited electron production is found. Mass dependent exclusion limits on e* production cross sections and on the ratio f/Lambda of the coupling to the compositeness scale are derived within gauge mediated models. These limits extend the excluded region compared to previous excited electron searches. The e* production via contact interactions is also addressed for the first time in ep collisions. (C) 2008 Elsevier B.V. All rights reserved. (Less)

Please use this url to cite or link to this publication: https://lup.lub.lu.se/record/1247359

author

Aaron, F. D. ; Alexa, C. ; Andreev, V. ; Antunovic, B. ; Aplin, S. ; Asmone, A. ; Astvatsatourov, A. ; Bacchetta, A. ; Backovic, S. and Baghdasaryan, A. , et al. (More)

Aaron, F. D. ; Alexa, C. ; Andreev, V. ; Antunovic, B. ; Aplin, S. ; Asmone, A. ; Astvatsatourov, A. ; Bacchetta, A. ; Backovic, S. ; Baghdasaryan, A. ; Baranov, P. ; Barrelet, E. ; Bartel, W. ; Beckingham, M. ; Begzsuren, K. ; Behnke, O. ; Belousov, A. ; Berger, N. ; Bizot, J. C. ; Boenig, M. -O. ; Boudry, V. ; Bozovic-Jelisavcic, I. ; Bracinik, J. ; Brandt, G. ; Brinkmann, M. ; Brisson, V. ; Bruncko, D. ; Bunyatyan, A. ; Buschhorn, G. ; Bystritskaya, L. ; Campbell, A. J. ; Avila, K. B. Cantun ; Cassol-Brunner, F. ; Cerny, K. ; Cerny, V. ; Chekelian, V. ; Cholewa, A. ; Contreras, J. G. ; Coughlan, J. A. ; Cozzika, G. ; Cvach, J. ; Dainton, J. B. ; Daum, K. ; Deak, M. ; de Boer, Y. ; Delcourt, B. ; Del Degan, M. ; Delvax, J. ; De Roeck, A. ; De Wolf, E. A. ; Diaconu, C. ; Dodonov, V. ; Dossanov, A. ; Dubak, A. ; Eckerlin, G. ; Efremenko, V. ; Egli, S. ; Eliseev, A. ; Elsen, E. ; Essenov, S. ; Falkiewicz, A. ; Faulkner, P. J. W. ; Favart, L. ; Fedotov, A. ; Felst, R. ; Feltesse, J. ; Ferencei, J. ; Finke, L. ; Fleischer, M. ; Fomenko, A. ; Gabathuler, E. ; Gayler, J. ; Ghazaryan, S. ; Glazov, A. ; Glushkov, I. ; Goerlich, L. ; Goettlich, M. ; Gogitidze, N. ; Gouzevitch, M. ; Grab, C. ; Greenshaw, T. ; Grell, B. R. ; Grindhammer, G. ; Habib, S. ; Haidt, D. ; Hansson, Magnus ^LU ; Helebrant, C. ; Henderson, R. C. W. ; Henschel, H. ; Herrera, G. ; Hildebrandt, M. ; Hiller, K. H. ; Hoffmann, D. ; Horisberger, R. ; Hovhannisyan, A. ; Hreus, T. ; Jacquet, M. ; Janssen, M. E. ; Janssen, X. ; Jemanov, V. ; Jönsson, Leif ^LU ; Johnson, D. P. ; Jung, A. W. ; Jung, H. ; Kapichine, M. ; Katzy, J. ; Kenyon, I. R. ; Kiesling, C. ; Klein, M. ; Kleinwort, C. ; Klimkovich, T. ; Kluge, T. ; Knutsson, K. ; Kogler, R. ; Korbel, V. ; Kostka, P. ; Kraemer, M. ; Krastev, K. ; Kretzschmar, J. ; Kropivnitskaya, A. ; Krueger, K. ; Kutak, K. ; Landon, M. P. J. ; Langen, W. ; Lastovicka-Medin, G. ; Laycock, P. ; Lebedev, A. ; Leibenguth, G. ; Lendermann, V. ; Levonian, S. ; Li, G. ; Lipka, K. ; Liptaj, A. ; List, B. ; List, J. ; Loktionova, N. ; Lopez-Fernandez, R. ; Lubimov, V. ; Lucaci-Timoce, A. -I. ; Lytkin, L. ; Makankine, A. ; Malinovski, E. ; Marage, P. ; Marti, Ll. ; Martyn, H. -U. ; Maxfield, S. J. ; Mehta, A. ; Meier, K. ; Meyer, A. B. ; Meyer, H. ; Meyer, H. ; Meyer, J. ; Michels, V. ; Mikocki, S. ; Milcewicz-Mika, I. ; Moreau, F. ; Morozov, A. ; Morris, J. V. ; Mozer, M. U. ; Mudrinic, M. ; Mueller, K. ; Murin, P. ; Nankov, K. ; Naroska, B. ; Naumann, Th. ; Newman, P. R. ; Niebuhr, C. ; Nikiforov, A. ; Nowak, G. ; Nowak, K. ; Nozicka, M. ; Olivier, B. ; Olsson, J. E. ; Osman, Sakar ^LU ; Ozerov, D. ; Palichik, V. ; Panagoulias, I. ; Pandurovic, M. ; Papadopoulou, Th. ; Pascaud, C. ; Patel, G. D. ; Pejchal, O. ; Peng, H. ; Perez, E. ; Petrukhin, A. ; Picuric, I. ; Piec, S. ; Pitzl, D. ; Placakyte, R. ; Polifka, R. ; Povh, B. ; Preda, T. ; Radescu, V. ; Rahmat, A. J. ; Raicevic, N. ; Raspiareza, A. ; Ravdandorj, T. ; Reimer, P. ; Rizvi, E. ; Robmann, P. ; Roland, B. ; Roosen, R. ; Rostovtsev, A. ; Rotaru, M. ; Tabasco, J. E. Ruiz ; Rurikova, Z. ; Rusakov, S. ; Salek, D. ; Salvaire, F. ; Sankey, D. P. C. ; Sauter, M. ; Sauvan, E. ; Schmidt, S. ; Schmitt, S. ; Schmitz, C. ; Schoeffel, L. ; Schoening, A. ; Schultz-Coulon, H. -C. ; Sefkow, F. ; Shaw-West, R. N. ; Sheviakov, I. ; Shtarkov, L. N. ; Shushkevich, S. ; Sloan, T. ; Smijanic, I. ; Smirnov, P. ; Soloviev, Y. ; Sopicki, P. ; South, D. ; Spaskov, V. ; Specka, A. ; Staykova, Z. ; Steder, M. ; Stella, B. ; Straumann, U. ; Sunar, D. ; Sykora, T. ; Tchoulakov, V. ; Thompson, G. ; Thompson, P. D. ; Toll, T. ; Tomasz, F. ; Tran, T. H. ; Traynor, D. ; Trinh, T. N. ; Truoel, P. ; Tsakov, I. ; Tseepeldorj, B. ; Tsurin, I. ; Turnau, J. ; Tzamariudaki, E. ; Urban, K. ; Valkarova, A. ; Vallee, C. ; Van Mechelen, P. ; Trevino, A. Vargas ; Vazdik, Y. ; Vinokurova, S. ; Volchinski, V. ; Wegener, D. ; Wessels, M. ; Wissing, Ch. ; Wuensch, E. ; Yeganov, V. ; Zacek, J. ; Zalesak, J. ; Zhang, Z. ; Zhelezov, A. ; Zhokin, A. ; Zhu, Y. C. ; Zimmermann, T. ; Zohrabyan, H. and Zomer, F. (Less)

organization

Particle and nuclear physics

publishing date

2008

type

Contribution to journal

publication status

published

subject

Subatomic Physics

in

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

volume

666

issue

2

pages

131 - 139

publisher

Elsevier

external identifiers

wos:000258907600005
scopus:50949094955

ISSN

0370-2693

DOI

10.1016/j.physletb.2008.07.014

language

English

LU publication?

yes

id

fdc5d259-1a6b-4848-bd66-fb24ae415a50 (old id 1247359)

date added to LUP

2016-04-01 14:16:53

date last changed

2023-03-02 18:41:22

@article{fdc5d259-1a6b-4848-bd66-fb24ae415a50,
  abstract     = {{A search for excited electrons is performed using the full e(+/-) p data sample collected by the HI experiment at HERA, corresponding to a total luminosity of 475 pb(-1). The electroweak decays of excited electrons e* -&gt; e gamma, e* -&gt; eZ and e* -&gt; vW with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for excited electron production is found. Mass dependent exclusion limits on e* production cross sections and on the ratio f/Lambda of the coupling to the compositeness scale are derived within gauge mediated models. These limits extend the excluded region compared to previous excited electron searches. The e* production via contact interactions is also addressed for the first time in ep collisions. (C) 2008 Elsevier B.V. All rights reserved.}},
  author       = {{Aaron, F. D. and Alexa, C. and Andreev, V. and Antunovic, B. and Aplin, S. and Asmone, A. and Astvatsatourov, A. and Bacchetta, A. and Backovic, S. and Baghdasaryan, A. and Baranov, P. and Barrelet, E. and Bartel, W. and Beckingham, M. and Begzsuren, K. and Behnke, O. and Belousov, A. and Berger, N. and Bizot, J. C. and Boenig, M. -O. and Boudry, V. and Bozovic-Jelisavcic, I. and Bracinik, J. and Brandt, G. and Brinkmann, M. and Brisson, V. and Bruncko, D. and Bunyatyan, A. and Buschhorn, G. and Bystritskaya, L. and Campbell, A. J. and Avila, K. B. Cantun and Cassol-Brunner, F. and Cerny, K. and Cerny, V. and Chekelian, V. and Cholewa, A. and Contreras, J. G. and Coughlan, J. A. and Cozzika, G. and Cvach, J. and Dainton, J. B. and Daum, K. and Deak, M. and de Boer, Y. and Delcourt, B. and Del Degan, M. and Delvax, J. and De Roeck, A. and De Wolf, E. A. and Diaconu, C. and Dodonov, V. and Dossanov, A. and Dubak, A. and Eckerlin, G. and Efremenko, V. and Egli, S. and Eliseev, A. and Elsen, E. and Essenov, S. and Falkiewicz, A. and Faulkner, P. J. W. and Favart, L. and Fedotov, A. and Felst, R. and Feltesse, J. and Ferencei, J. and Finke, L. and Fleischer, M. and Fomenko, A. and Gabathuler, E. and Gayler, J. and Ghazaryan, S. and Glazov, A. and Glushkov, I. and Goerlich, L. and Goettlich, M. and Gogitidze, N. and Gouzevitch, M. and Grab, C. and Greenshaw, T. and Grell, B. R. and Grindhammer, G. and Habib, S. and Haidt, D. and Hansson, Magnus and Helebrant, C. and Henderson, R. C. W. and Henschel, H. and Herrera, G. and Hildebrandt, M. and Hiller, K. H. and Hoffmann, D. and Horisberger, R. and Hovhannisyan, A. and Hreus, T. and Jacquet, M. and Janssen, M. E. and Janssen, X. and Jemanov, V. and Jönsson, Leif and Johnson, D. P. and Jung, A. W. and Jung, H. and Kapichine, M. and Katzy, J. and Kenyon, I. R. and Kiesling, C. and Klein, M. and Kleinwort, C. and Klimkovich, T. and Kluge, T. and Knutsson, K. and Kogler, R. and Korbel, V. and Kostka, P. and Kraemer, M. and Krastev, K. and Kretzschmar, J. and Kropivnitskaya, A. and Krueger, K. and Kutak, K. and Landon, M. P. J. and Langen, W. and Lastovicka-Medin, G. and Laycock, P. and Lebedev, A. and Leibenguth, G. and Lendermann, V. and Levonian, S. and Li, G. and Lipka, K. and Liptaj, A. and List, B. and List, J. and Loktionova, N. and Lopez-Fernandez, R. and Lubimov, V. and Lucaci-Timoce, A. -I. and Lytkin, L. and Makankine, A. and Malinovski, E. and Marage, P. and Marti, Ll. and Martyn, H. -U. and Maxfield, S. J. and Mehta, A. and Meier, K. and Meyer, A. B. and Meyer, H. and Meyer, H. and Meyer, J. and Michels, V. and Mikocki, S. and Milcewicz-Mika, I. and Moreau, F. and Morozov, A. and Morris, J. V. and Mozer, M. U. and Mudrinic, M. and Mueller, K. and Murin, P. and Nankov, K. and Naroska, B. and Naumann, Th. and Newman, P. R. and Niebuhr, C. and Nikiforov, A. and Nowak, G. and Nowak, K. and Nozicka, M. and Olivier, B. and Olsson, J. E. and Osman, Sakar and Ozerov, D. and Palichik, V. and Panagoulias, I. and Pandurovic, M. and Papadopoulou, Th. and Pascaud, C. and Patel, G. D. and Pejchal, O. and Peng, H. and Perez, E. and Petrukhin, A. and Picuric, I. and Piec, S. and Pitzl, D. and Placakyte, R. and Polifka, R. and Povh, B. and Preda, T. and Radescu, V. and Rahmat, A. J. and Raicevic, N. and Raspiareza, A. and Ravdandorj, T. and Reimer, P. and Rizvi, E. and Robmann, P. and Roland, B. and Roosen, R. and Rostovtsev, A. and Rotaru, M. and Tabasco, J. E. Ruiz and Rurikova, Z. and Rusakov, S. and Salek, D. and Salvaire, F. and Sankey, D. P. C. and Sauter, M. and Sauvan, E. and Schmidt, S. and Schmitt, S. and Schmitz, C. and Schoeffel, L. and Schoening, A. and Schultz-Coulon, H. -C. and Sefkow, F. and Shaw-West, R. N. and Sheviakov, I. and Shtarkov, L. N. and Shushkevich, S. and Sloan, T. and Smijanic, I. and Smirnov, P. and Soloviev, Y. and Sopicki, P. and South, D. and Spaskov, V. and Specka, A. and Staykova, Z. and Steder, M. and Stella, B. and Straumann, U. and Sunar, D. and Sykora, T. and Tchoulakov, V. and Thompson, G. and Thompson, P. D. and Toll, T. and Tomasz, F. and Tran, T. H. and Traynor, D. and Trinh, T. N. and Truoel, P. and Tsakov, I. and Tseepeldorj, B. and Tsurin, I. and Turnau, J. and Tzamariudaki, E. and Urban, K. and Valkarova, A. and Vallee, C. and Van Mechelen, P. and Trevino, A. Vargas and Vazdik, Y. and Vinokurova, S. and Volchinski, V. and Wegener, D. and Wessels, M. and Wissing, Ch. and Wuensch, E. and Yeganov, V. and Zacek, J. and Zalesak, J. and Zhang, Z. and Zhelezov, A. and Zhokin, A. and Zhu, Y. C. and Zimmermann, T. and Zohrabyan, H. and Zomer, F.}},
  issn         = {{0370-2693}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{131--139}},
  publisher    = {{Elsevier}},
  series       = {{Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics}},
  title        = {{Search for excited electrons in ep collisions at HERA}},
  url          = {{http://dx.doi.org/10.1016/j.physletb.2008.07.014}},
  doi          = {{10.1016/j.physletb.2008.07.014}},
  volume       = {{666}},
  year         = {{2008}},
}

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Search for excited electrons in ep collisions at HERA