Abstract
For the first time, a search for the rare decay of the W boson to three charged pions has been performed. Proton-proton collision data recorded by the CMS experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 77.3 fb-1, have been analyzed. No significant excess is observed above the background expectation. An upper limit of 1.01×10-6 is set at 95% confidence level on the branching fraction of the W boson to three charged pions. This provides a strong motivation for theoretical calculations of this branching fraction.
| Original language | English |
|---|---|
| Article number | 151802 |
| Journal | Physical Review Letters |
| Volume | 122 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 18 Apr 2019 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Search for W Boson Decays to Three Charged Pions. / CMS Collaboration.
In: Physical Review Letters, Vol. 122, No. 15, 151802, 18.04.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Search for W Boson Decays to Three Charged Pions
AU - CMS Collaboration
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Ambrogi, F.
AU - Asilar, E.
AU - Bergauer, T.
AU - Brandstetter, J.
AU - Dragicevic, M.
AU - Erö, J.
AU - Escalante Del Valle, A.
AU - Flechl, M.
AU - Frühwirth, R.
AU - Ghete, V. M.
AU - Hrubec, J.
AU - Jeitler, M.
AU - Krammer, N.
AU - Krätschmer, I.
AU - Liko, D.
AU - Madlener, T.
AU - Mikulec, I.
AU - Rad, N.
AU - Rohringer, H.
AU - Schieck, J.
AU - Schöfbeck, R.
AU - Spanring, M.
AU - Spitzbart, D.
AU - Waltenberger, W.
AU - Wittmann, J.
AU - Wulz, C. E.
AU - Zarucki, M.
AU - Chekhovsky, V.
AU - Mossolov, V.
AU - Suarez Gonzalez, J.
AU - De Wolf, E. A.
AU - Di Croce, D.
AU - Danilov, V.
AU - Kim, J. H.
AU - Kim, J. H.
AU - Kim, J. H.
AU - Gavrilenko, M.
AU - Zarubin, A.
AU - Ivanov, Y.
AU - Kim, V.
AU - Oreshkin, V.
AU - Vavilov, S.
AU - Popov, V.
AU - Ershov, A.
AU - Babaev, A.
AU - Baidali, S.
AU - Okhotnikov, V.
PY - 2019/4/18
Y1 - 2019/4/18
N2 - For the first time, a search for the rare decay of the W boson to three charged pions has been performed. Proton-proton collision data recorded by the CMS experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 77.3 fb-1, have been analyzed. No significant excess is observed above the background expectation. An upper limit of 1.01×10-6 is set at 95% confidence level on the branching fraction of the W boson to three charged pions. This provides a strong motivation for theoretical calculations of this branching fraction.
AB - For the first time, a search for the rare decay of the W boson to three charged pions has been performed. Proton-proton collision data recorded by the CMS experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 77.3 fb-1, have been analyzed. No significant excess is observed above the background expectation. An upper limit of 1.01×10-6 is set at 95% confidence level on the branching fraction of the W boson to three charged pions. This provides a strong motivation for theoretical calculations of this branching fraction.
UR - http://www.scopus.com/inward/record.url?scp=85065556806&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85065556806&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.122.151802
DO - 10.1103/PhysRevLett.122.151802
M3 - Article
C2 - 31050519
AN - SCOPUS:85065556806
VL - 122
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 15
M1 - 151802
ER -