Skip to Main content Skip to Navigation
Journal articles

Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s)=7 TeV and constraints on anomalous quartic gauge couplings

S. Chatrchyan M. Besançon 1 S. Choudhury 1 F. Couderc 1 M. Dejardin 1 D. Denegri 1 B. Fabbro 1 J.L. Faure 1 F. Ferri 1 S. Ganjour 1 A. Givernaud 1 P. Gras 1 G. Hamel de Monchenault 1 P. Jarry 1 E. Locci 1 J. Malcles 1 L. Millischer 1 A. Nayak 1 J. Rander 1 A. Rosowsky 1 M. Titov 1 S. Baffioni 2 F. Beaudette 2 L. Benhabib 2 L. Bianchini 2 M. Bluj 2 Pierre Busson 2 C. Charlot 2 N. Daci 2 T. Dahms 2 M. Dalchenko 2 L. Dobrzynski 2 A. Florent 2 R. Granier de Cassagnac 2 M. Haguenauer 2 P. Mine 2 C. Mironov 2 I.N. Naranjo 2 M. Nguyen 2 C. Ochando 2 P. Paganini 2 D. Sabes 2 R. Salerno 2 Y. Sirois 2 C. Veelken 2 A. Zabi 2 J.-L. Agram 3 J. Andrea 3 D. Bloch 3 D. Bodin 3 J.-M. Brom 3 E.C. Chabert 3 C. Collard 3 E. Conte 3 F. Drouhin 3 J.-C. Fontaine 3 D. Gele 3 U. Goerlach 3 C. Goetzmann 3 P. Juillot 3 A.-C. Le Bihan 3 P. van Hove 3 S. Gadrat 4 S. Beauceron 5 N. Beaupere 5 G. Boudoul 5 S. Brochet 5 J. Chasserat 5 R. Chierici 5 D. Contardo 5 P. Depasse 5 H. El Mamouni 5 J. Fay 5 S. Gascon 5 M. Gouzevitch 5 B. Ille 5 T. Kurca 5 M. Lethuillier 5 L. Mirabito 5 S. Perries 5 L. Sgandurra 5 V. Sordini 5 Y. Tschudi 5 M. Vander Donckt 5 P. Verdier 5 S. Viret 5 
Abstract : A search for exclusive or quasi-exclusive W(+)W(-) production by photon-photon interactions, pp to p(*)W(+)W(-)p(*), at sqrt(s)=7 TeV is reported using data collected by the CMS detector with an integrated luminosity of 5.05 inverse femtobarns. Events are selected by requiring a mu(+/-)e(-/+) vertex with no additional associated charged tracks and dilepton transverse momentum pt(mu(+/-)e(-/+))>30 GeV. Two events passing all selection requirements are observed in the data, compared to a standard model expectation of 2.2+/-0.4 signal events with 0.84+/-0.15 background. The tail of the dilepton pt distribution is studied for deviations from the standard model. No events are observed with pt > 100 GeV. Model-independent upper limits are computed and compared to predictions involving anomalous quartic gauge couplings. The limits on the parameters a[W,(0,C)]/Lambda^2 with a dipole form factor and an energy cutoff Lambda(cutoff)=500 GeV are of the order of 10E-4.
Document type :
Journal articles
Complete list of metadata

http://hal.in2p3.fr/in2p3-00826148
Contributor : Sylvie Flores Connect in order to contact the contributor
Submitted on : Monday, May 27, 2013 - 7:13:05 AM
Last modification on : Monday, March 28, 2022 - 9:39:17 AM

Links full text

Identifiers

Citation

S. Chatrchyan, M. Besançon, S. Choudhury, F. Couderc, M. Dejardin, et al.. Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s)=7 TeV and constraints on anomalous quartic gauge couplings. Journal of High Energy Physics, Springer, 2013, 07(2013), pp.116. ⟨10.1007/JHEP07(2013)116⟩. ⟨in2p3-00826148⟩

Share

Metrics

Record views

31