A new Boson with a mass of 125 GeV observed with the CMS experiment at the large hadron collider

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, M. Hoch, N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer, V. Knünz, M. KrammerI. Krätschmer, D. Liko, W. Majerotto, I. Mikulec, M. Pernicka, B. Rahbaran, C. Rohringer, H. Rohringer, R. Schöfbeck, J. Strauss, F. Szoncsó, A. Taurok, W. Waltenberger, G. Walzel, E. Widl, C. E. Wulz, V. Chekhovsky, I. Emeliantchik, A. Litomin, V. Makarenko, V. Mossolov, N. Shumeiko, A. Solin, R. Stefanovitch, J. Suarez Gonzalez, A. Fedorov, M. Korzhik, O. Missevitch, R. Zuyeuski, A. Radi, The CMS Collaboration

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Abstract

The Higgs boson was postulated nearly five decades ago within the framework of the standard model of particle physics and has been the subject of numerous searches at accelerators around the world. Its discovery would verify the existence of a complex scalar field thought to give mass to three of the carriers of the electroweak force-the W+, W-, and Z 0 bosons-as well as to the fundamental quarks and leptons. The CMS Collaboration has observed, with a statistical significance of five standard deviations, a new particle produced in proton-proton collisions at the Large Hadron Collider at CERN. The evidence is strongest in the diphoton and four-lepton (electrons and/or muons) final states, which provide the best mass resolution in the CMS detector. The probability of the observed signal being due to a random fluctuation of the background is about 1 in 3 x 106. The new particle is a boson with spin not equal to 1 and has a mass of about 1.25 giga-electron volts. Although its measured properties are, within the uncertainties of the present data, consistent with those expected of the Higgs boson, more data are needed to elucidate the precise nature of the new particle.

Original languageEnglish
Pages (from-to)1569-1575
Number of pages7
JournalScience
Volume338
Issue number6114
DOIs
Publication statusPublished - Dec 21 2012

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Protons
Mesons
Electrons
Physics
Uncertainty

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Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Aguilo, E., ... The CMS Collaboration (2012). A new Boson with a mass of 125 GeV observed with the CMS experiment at the large hadron collider. Science, 338(6114), 1569-1575. https://doi.org/10.1126/science.1230816

A new Boson with a mass of 125 GeV observed with the CMS experiment at the large hadron collider. / 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.; Hoch, M.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Knünz, V.; Krammer, M.; Krätschmer, I.; Liko, D.; Majerotto, W.; Mikulec, I.; Pernicka, M.; Rahbaran, B.; Rohringer, C.; Rohringer, H.; Schöfbeck, R.; Strauss, J.; Szoncsó, F.; Taurok, A.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C. E.; Chekhovsky, V.; Emeliantchik, I.; Litomin, A.; Makarenko, V.; Mossolov, V.; Shumeiko, N.; Solin, A.; Stefanovitch, R.; Suarez Gonzalez, J.; Fedorov, A.; Korzhik, M.; Missevitch, O.; Zuyeuski, R.; Radi, A.; The CMS Collaboration.

In: Science, Vol. 338, No. 6114, 21.12.2012, p. 1569-1575.

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, Hoch, M, Hörmann, N, Hrubec, J, Jeitler, M, Kiesenhofer, W, Knünz, V, Krammer, M, Krätschmer, I, Liko, D, Majerotto, W, Mikulec, I, Pernicka, M, Rahbaran, B, Rohringer, C, Rohringer, H, Schöfbeck, R, Strauss, J, Szoncsó, F, Taurok, A, Waltenberger, W, Walzel, G, Widl, E, Wulz, CE, Chekhovsky, V, Emeliantchik, I, Litomin, A, Makarenko, V, Mossolov, V, Shumeiko, N, Solin, A, Stefanovitch, R, Suarez Gonzalez, J, Fedorov, A, Korzhik, M, Missevitch, O, Zuyeuski, R, Radi, A & The CMS Collaboration 2012, 'A new Boson with a mass of 125 GeV observed with the CMS experiment at the large hadron collider', Science, vol. 338, no. 6114, pp. 1569-1575. https://doi.org/10.1126/science.1230816
Chatrchyan S, Khachatryan V, Sirunyan AM, Tumasyan A, Adam W, Aguilo E et al. A new Boson with a mass of 125 GeV observed with the CMS experiment at the large hadron collider. Science. 2012 Dec 21;338(6114):1569-1575. https://doi.org/10.1126/science.1230816
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. ; Hoch, M. ; Hörmann, N. ; Hrubec, J. ; Jeitler, M. ; Kiesenhofer, W. ; Knünz, V. ; Krammer, M. ; Krätschmer, I. ; Liko, D. ; Majerotto, W. ; Mikulec, I. ; Pernicka, M. ; Rahbaran, B. ; Rohringer, C. ; Rohringer, H. ; Schöfbeck, R. ; Strauss, J. ; Szoncsó, F. ; Taurok, A. ; Waltenberger, W. ; Walzel, G. ; Widl, E. ; Wulz, C. E. ; Chekhovsky, V. ; Emeliantchik, I. ; Litomin, A. ; Makarenko, V. ; Mossolov, V. ; Shumeiko, N. ; Solin, A. ; Stefanovitch, R. ; Suarez Gonzalez, J. ; Fedorov, A. ; Korzhik, M. ; Missevitch, O. ; Zuyeuski, R. ; Radi, A. ; The CMS Collaboration. / A new Boson with a mass of 125 GeV observed with the CMS experiment at the large hadron collider. In: Science. 2012 ; Vol. 338, No. 6114. pp. 1569-1575.
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abstract = "The Higgs boson was postulated nearly five decades ago within the framework of the standard model of particle physics and has been the subject of numerous searches at accelerators around the world. Its discovery would verify the existence of a complex scalar field thought to give mass to three of the carriers of the electroweak force-the W+, W-, and Z 0 bosons-as well as to the fundamental quarks and leptons. The CMS Collaboration has observed, with a statistical significance of five standard deviations, a new particle produced in proton-proton collisions at the Large Hadron Collider at CERN. The evidence is strongest in the diphoton and four-lepton (electrons and/or muons) final states, which provide the best mass resolution in the CMS detector. The probability of the observed signal being due to a random fluctuation of the background is about 1 in 3 x 106. The new particle is a boson with spin not equal to 1 and has a mass of about 1.25 giga-electron volts. Although its measured properties are, within the uncertainties of the present data, consistent with those expected of the Higgs boson, more data are needed to elucidate the precise nature of the new particle.",
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AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Aguilo, E.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hoch, 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 - Majerotto, W.

AU - Mikulec, I.

AU - Pernicka, M.

AU - Rahbaran, B.

AU - Rohringer, C.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Szoncsó, F.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Walzel, G.

AU - Widl, E.

AU - Wulz, C. E.

AU - Chekhovsky, V.

AU - Emeliantchik, I.

AU - Litomin, A.

AU - Makarenko, V.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Solin, A.

AU - Stefanovitch, R.

AU - Suarez Gonzalez, J.

AU - Fedorov, A.

AU - Korzhik, M.

AU - Missevitch, O.

AU - Zuyeuski, R.

AU - Radi, A.

AU - The CMS Collaboration

PY - 2012/12/21

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