RT Journal Article
T1 Search for the decay D0→π+π−μ+μ−
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Álvarez Cartelle, Paula
A1 Dosil Suárez, Álvaro
A1 Fernández Albor, Víctor Manuel
A1 Gallas Torreira, Abraham Antonio
A1 Hernando Morata, José Ángel
A1 Pazos Álvarez, Antonio
A1 Pérez Trigo, Eliseo
A1 Plo Casasus, Máximo
A1 Rodríguez Pérez, Pablo
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Santamarina Ríos, Cibrán
A1 Seco Miguélez, Marcos Antonio
A1 Vázquez Regueiro, Pablo
A1 Vázquez Sierra, Carlos
AB A search for the D0→π+π−μ+μ− decay, where the muon pair does not originate from a resonance, isperformed using proton–proton collision data corresponding to an integrated luminosity of 1.0 fb−1recorded by the LHCb experiment at a centre-of-mass energy of 7 TeV. No signal is observedand an upper limit on the relative branching fraction with respect to the resonant decay modeD0→π+π−φ(→μ+μ−), under the assumption of a phase-space model, is found to beB D0→π+π−μ+μ− /B D0→π+π−φ →μ+μ−   < 0.96at 90% confidence level. The upper limit on the absolute branching fraction is evaluated to beB(D0→π+π−μ+μ−) < 5.5×10−7 at 90% confidence level. This is the most stringent to date.
PB Elsevier
SN 0370-2693
YR 2014
FD 2014
LK http://hdl.handle.net/10347/21919
UL http://hdl.handle.net/10347/21919
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., ... & Alkhazov, G. (2014). Search for the decay D0→ π+ π− μ+ μ−. Physics Letters B, 728, 234-243
DS Minerva
RD 28 abr 2026