Search for anomalous production of highly boosted Z bosons decaying to μ+μ in proton-proton collisions at [Formula presented] TeV

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, E. Aguilo, T. Bergauer, M. Dragicevic, J. Erö, C. Fabjan, M. Friedl, R. Frühwirth, V. M. Ghete, J. Hammer, N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer, V. Knünz, M. Krammer & 31 others I. Krätschmer, D. Liko, I. Mikulec, M. Pernicka, B. Rahbaran, C. Rohringer, H. Rohringer, R. Schöfbeck, J. Strauss, A. Taurok, W. Waltenberger, G. Walzel, E. Widl, C. E. Wulz, V. Mossolov, N. Shumeiko, J. Suarez Gonzalez, S. Bansal, T. Cornelis, E. A. De Wolf, X. Janssen, S. Luyckx, L. Mucibello, S. Ochesanu, B. Roland, R. Rougny, M. Selvaggi, Z. Staykova, H. Van Haevermaet, A. Radi, CMS Collaboration

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Results are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to μ+μ. Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at s=7 TeV, corresponding to an integrated luminosity of 5.0 fb−1 recorded with the CMS detector. The shape of the observed transverse momentum distribution of Z bosons is consistent with standard model expectations. Constraints are obtained on models predicting the production of excited quarks decaying via electroweak processes. Assuming a compositeness scale that is equal to the excited quark mass as well as transition coupling strengths between Z bosons and excited quarks that are equal to standard model couplings to quarks, masses of excited quarks below 1.94 TeVare excluded at the 95% confidence level. For excited quark production via a novel contact interaction, masses below 2.22 TeVare excluded, even if the excited quarks do not couple to gluons.

Original languageEnglish
Pages (from-to)28-47
Number of pages20
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume722
Issue number1-3
DOIs
Publication statusPublished - May 13 2013

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bosons
quarks
collisions
protons
transverse momentum
gluons
confidence
electric contacts
luminosity
detectors
decay
interactions

Keywords

  • CMS
  • Dimuons
  • Excited quarks
  • New phenomena
  • Physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for anomalous production of highly boosted Z bosons decaying to μ+μ in proton-proton collisions at [Formula presented] TeV. / Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Aguilo, E.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hammer, J.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Knünz, V.; Krammer, M.; Krätschmer, I.; Liko, D.; Mikulec, I.; Pernicka, M.; Rahbaran, B.; Rohringer, C.; Rohringer, H.; Schöfbeck, R.; Strauss, J.; Taurok, A.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Bansal, S.; Cornelis, T.; De Wolf, E. A.; Janssen, X.; Luyckx, S.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Staykova, Z.; Van Haevermaet, H.; Radi, A.; CMS Collaboration.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 722, No. 1-3, 13.05.2013, p. 28-47.

Research output: Contribution to journalArticle

Chatrchyan, S, Khachatryan, V, Sirunyan, AM, Tumasyan, A, Adam, W, Aguilo, E, Bergauer, T, Dragicevic, M, Erö, J, Fabjan, C, Friedl, M, Frühwirth, R, Ghete, VM, Hammer, J, Hörmann, N, Hrubec, J, Jeitler, M, Kiesenhofer, W, Knünz, V, Krammer, M, Krätschmer, I, Liko, D, Mikulec, I, Pernicka, M, Rahbaran, B, Rohringer, C, Rohringer, H, Schöfbeck, R, Strauss, J, Taurok, A, Waltenberger, W, Walzel, G, Widl, E, Wulz, CE, Mossolov, V, Shumeiko, N, Suarez Gonzalez, J, Bansal, S, Cornelis, T, De Wolf, EA, Janssen, X, Luyckx, S, Mucibello, L, Ochesanu, S, Roland, B, Rougny, R, Selvaggi, M, Staykova, Z, Van Haevermaet, H, Radi, A & CMS Collaboration 2013, 'Search for anomalous production of highly boosted Z bosons decaying to μ+μ in proton-proton collisions at [Formula presented] TeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 722, no. 1-3, pp. 28-47. https://doi.org/10.1016/j.physletb.2013.03.037
Chatrchyan, S. ; Khachatryan, V. ; Sirunyan, A. M. ; Tumasyan, A. ; Adam, W. ; Aguilo, E. ; Bergauer, T. ; Dragicevic, M. ; Erö, J. ; Fabjan, C. ; Friedl, M. ; Frühwirth, R. ; Ghete, V. M. ; Hammer, J. ; Hörmann, N. ; Hrubec, J. ; Jeitler, M. ; Kiesenhofer, W. ; Knünz, V. ; Krammer, M. ; Krätschmer, I. ; Liko, D. ; Mikulec, I. ; Pernicka, M. ; Rahbaran, B. ; Rohringer, C. ; Rohringer, H. ; Schöfbeck, R. ; Strauss, J. ; Taurok, A. ; Waltenberger, W. ; Walzel, G. ; Widl, E. ; Wulz, C. E. ; Mossolov, V. ; Shumeiko, N. ; Suarez Gonzalez, J. ; Bansal, S. ; Cornelis, T. ; De Wolf, E. A. ; Janssen, X. ; Luyckx, S. ; Mucibello, L. ; Ochesanu, S. ; Roland, B. ; Rougny, R. ; Selvaggi, M. ; Staykova, Z. ; Van Haevermaet, H. ; Radi, A. ; CMS Collaboration. / Search for anomalous production of highly boosted Z bosons decaying to μ+μ in proton-proton collisions at [Formula presented] TeV. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2013 ; Vol. 722, No. 1-3. pp. 28-47.
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AU - Tumasyan, A.

AU - Adam, W.

AU - Aguilo, E.

AU - Bergauer, T.

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AU - Liko, D.

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AU - Pernicka, M.

AU - Rahbaran, B.

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AU - Schöfbeck, R.

AU - Strauss, J.

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AU - Waltenberger, W.

AU - Walzel, G.

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AU - Ochesanu, S.

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