Angular analysis and branching fraction measurement of the decay B0→K*0μ+μ-

S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, J. Erö, C. Fabjan, M. Friedl, R. Frühwirth, V. M. Ghete, N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer, V. Knünz, M. Krammer, I. Krätschmer, D. Liko & 30 others I. Mikulec, D. Rabady, B. Rahbaran, C. Rohringer, H. Rohringer, R. Schöfbeck, J. Strauss, A. Taurok, W. Treberer-Treberspurg, W. Waltenberger, C. E. Wulz, V. Mossolov, N. Shumeiko, J. Suarez Gonzalez, S. Alderweireldt, M. Bansal, S. Bansal, T. Cornelis, E. A. De Wolf, X. Janssen, A. Knutsson, S. Luyckx, L. Mucibello, S. Ochesanu, B. Roland, R. Rougny, Z. Staykova, H. Van Haevermaet, P. Van Mechelen, O. Bouhali

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The angular distributions and the differential branching fraction of the decay B0→K*(892)0μ+μ- are studied using a data sample corresponding to an integrated luminosity of 5.2fb-1 collected with the CMS detector at the LHC in pp collisions at s=7TeV. From more than 400 signal decays, the forward-backward asymmetry of the muons, the K*(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictions.

Original languageEnglish
Pages (from-to)77-100
Number of pages24
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume727
Issue number1-3
DOIs
Publication statusPublished - 25 Nov 2013
Externally publishedYes

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decay
muons
angular distribution
luminosity
asymmetry
collisions
detectors
polarization
predictions

Keywords

  • CMS
  • Physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Angular analysis and branching fraction measurement of the decay B0→K*0μ+μ- . / Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Knünz, V.; Krammer, M.; Krätschmer, I.; Liko, D.; Mikulec, I.; Rabady, D.; Rahbaran, B.; Rohringer, C.; Rohringer, H.; Schöfbeck, R.; Strauss, J.; Taurok, A.; Treberer-Treberspurg, W.; Waltenberger, W.; Wulz, C. E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Alderweireldt, S.; Bansal, M.; Bansal, S.; Cornelis, T.; De Wolf, E. A.; Janssen, X.; Knutsson, A.; Luyckx, S.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Staykova, Z.; Van Haevermaet, H.; Van Mechelen, P.; Bouhali, O.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 727, No. 1-3, 25.11.2013, p. 77-100.

Research output: Contribution to journalArticle

Chatrchyan, S, Khachatryan, V, Sirunyan, AM, Tumasyan, A, Adam, W, Bergauer, T, Dragicevic, M, Erö, J, Fabjan, C, Friedl, M, Frühwirth, R, Ghete, VM, Hörmann, N, Hrubec, J, Jeitler, M, Kiesenhofer, W, Knünz, V, Krammer, M, Krätschmer, I, Liko, D, Mikulec, I, Rabady, D, Rahbaran, B, Rohringer, C, Rohringer, H, Schöfbeck, R, Strauss, J, Taurok, A, Treberer-Treberspurg, W, Waltenberger, W, Wulz, CE, Mossolov, V, Shumeiko, N, Suarez Gonzalez, J, Alderweireldt, S, Bansal, M, Bansal, S, Cornelis, T, De Wolf, EA, Janssen, X, Knutsson, A, Luyckx, S, Mucibello, L, Ochesanu, S, Roland, B, Rougny, R, Staykova, Z, Van Haevermaet, H, Van Mechelen, P & Bouhali, O 2013, 'Angular analysis and branching fraction measurement of the decay B0→K*0μ+μ- ', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 727, no. 1-3, pp. 77-100. https://doi.org/10.1016/j.physletb.2013.10.017
Chatrchyan, S. ; Khachatryan, V. ; Sirunyan, A. M. ; Tumasyan, A. ; Adam, W. ; Bergauer, T. ; Dragicevic, M. ; Erö, J. ; Fabjan, C. ; Friedl, M. ; Frühwirth, R. ; Ghete, V. M. ; Hörmann, N. ; Hrubec, J. ; Jeitler, M. ; Kiesenhofer, W. ; Knünz, V. ; Krammer, M. ; Krätschmer, I. ; Liko, D. ; Mikulec, I. ; Rabady, D. ; Rahbaran, B. ; Rohringer, C. ; Rohringer, H. ; Schöfbeck, R. ; Strauss, J. ; Taurok, A. ; Treberer-Treberspurg, W. ; Waltenberger, W. ; Wulz, C. E. ; Mossolov, V. ; Shumeiko, N. ; Suarez Gonzalez, J. ; Alderweireldt, S. ; Bansal, M. ; Bansal, S. ; Cornelis, T. ; De Wolf, E. A. ; Janssen, X. ; Knutsson, A. ; Luyckx, S. ; Mucibello, L. ; Ochesanu, S. ; Roland, B. ; Rougny, R. ; Staykova, Z. ; Van Haevermaet, H. ; Van Mechelen, P. ; Bouhali, O. / Angular analysis and branching fraction measurement of the decay B0→K*0μ+μ- In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2013 ; Vol. 727, No. 1-3. pp. 77-100.
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AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Knünz, V.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, C.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Bansal, M.

AU - Bansal, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Luyckx, S.

AU - Mucibello, L.

AU - Ochesanu, S.

AU - Roland, B.

AU - Rougny, R.

AU - Staykova, Z.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Bouhali, O.

PY - 2013/11/25

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AB - The angular distributions and the differential branching fraction of the decay B0→K*(892)0μ+μ- are studied using a data sample corresponding to an integrated luminosity of 5.2fb-1 collected with the CMS detector at the LHC in pp collisions at s=7TeV. From more than 400 signal decays, the forward-backward asymmetry of the muons, the K*(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictions.

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KW - Physics

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U2 - 10.1016/j.physletb.2013.10.017

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EP - 100

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

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

SN - 0370-2693

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