Search for Leptonic Decays of Dark Photons at NA62 E Cortina Gil , J Jerhot , A Kleimenova , N Lurkin , M Zamkovsky , T Numao , B Velghe , V W S Wong , D Bryman , Z Hives , T Husek , K Kampf , M Koval , B De Martino , M Perrin-Terrin , B Döbrich , S Lezki , A T Akmete , R Aliberti , L Di Lella , N Doble , L Peruzzo , S Schuchmann , H Wahl , R Wanke , P Dalpiaz , I Neri , F Petrucci , M Soldani , L Bandiera , A Cotta Ramusino , A Gianoli , M Romagnoni , A Sytov , M Lenti , P Lo Chiatto , R Marchevski , I Panichi , G Ruggiero , A Bizzeti , F Bucci , A Antonelli , V Kozhuharov , G Lanfranchi , S Martellotti , M Moulson , T Spadaro , G Tinti , F Ambrosino , M D'Errico , R Fiorenza , R Giordano , P Massarotti , M Mirra , M Napolitano , I Rosa , G Saracino , G Anzivino , F Brizioli , P Cenci , V Duk , R Lollini , P Lubrano , M Pepe , M Piccini , F Costantini , M Giorgi , S Giudici , G Lamanna , E Lari , E Pedreschi , J Pinzino , M Sozzi , R Fantechi , F Spinella , I Mannelli , M Raggi , A Biagioni , P Cretaro , O Frezza , A Lonardo , M Turisini , P Vicini , R Ammendola , V Bonaiuto , A Fucci , A Salamon , F Sargeni , R Arcidiacono , B Bloch-Devaux , E Menichetti , E Migliore , C Biino , A Filippi , F Marchetto , D Soldi , A Briano Olvera , J Engelfried , N Estrada-Tristan , R Piandani , M A Reyes Santos , K A Rodriguez Rivera , P Boboc , A M Bragadireanu , S A Ghinescu , O E Hutanu , T Blazek , V Cerny , Z Kucerova , R Volpe , J Bernhard , L Bician , M Boretto , A Ceccucci , M Ceoletta , M Corvino , H Danielsson , F Duval , L Federici , E Gamberini , R Guida , E B Holzer , B Jenninger , G Lehmann Miotto , P Lichard , K Massri , E Minucci , M Noy , V Ryjov , J Swallow , J R Fry , F Gonnella , E Goudzovski , J Henshaw , C Kenworthy , C Lazzeroni , C Parkinson , A Romano , J Sanders , A Sergi , A Shaikhiev , A Tomczak , H Heath , D Britton , A Norton , D Protopopescu , J B Dainton , L Gatignon , R W L Jones , P Cooper , D Coward , P Rubin , A Baeva , D Baigarashev , D Emelyanov , T Enik , V Falaleev , S Fedotov , K Gorshanov , E Gushchin , V Kekelidze , D Kereibay , S Kholodenko , A Khotyantsev , A Korotkova , Y Kudenko , V Kurochka , V Kurshetsov , L Litov , D Madigozhin , A Mefodev , M Misheva , N Molokanova , V Obraztsov , A Okhotnikov , I Polenkevich , Yu Potrebenikov , A Sadovskiy , S Shkarovskiy , V Sugonyaev , O Yushchenko , NA6 Collaboration Physical review letters（2024）
摘要
The NA62 experiment at CERN, configured in beam-dump mode, has searched for dark photon decays in flight to electron-positron pairs using a sample of 1.4×10^{17} protons on dump collected in 2021. No evidence for a dark photon signal is observed. The combined result for dark photon searches in lepton-antilepton final states is presented and a region of the parameter space is excluded at 90% confidence level, improving on previous experimental limits for dark photon mass values between 50 and 600 MeV/c^{2} and coupling values in the range 10^{-6} to 4×10^{-5}. An interpretation of the e^{+}e^{-} search result in terms of the emission and decay of an axionlike particle is also presented.
更多 查看译文
AI 理解论文
溯源树
样例
