Search for a dark photon in electroproduced e + e − pairs with the Heavy Photon Search experiment at JLab

Adrian, P. H.; Baltzell, N. A.; Battaglieri, M.; Bondí, M.; Boyarinov, S.; Bueltmann, S.; Burkert, V. D.; Calvo, D.; Carpinelli, M.; Celentano, A.; Charles, G.; Colaneri, L.; Cooper, W.; Cuevas, C.; D’Angelo, A.; Dashyan, N.; De Napoli, M.; De Vita, R.; Deur, A.; Dupre, R.; Egiyan, H.; Elouadrhiri, L.; Essig, R.; Fadeyev, V.; Field, C.; Filippi, A.; Freyberger, A.; Garçon, M.; Gevorgyan, N.; Girod, F. X.; Graf, N.; Graham, M.; Griffioen, K. A.; Grillo, A.; Guidal, M.; Herbst, R.; Holtrop, M.; Jaros, J.; Kalicy, G.; Khandaker, M.; Kubarovsky, V.; Leonora, E.; Livingston, K.; Maruyama, T.; McCarty, K.; McCormick, J.; McKinnon, B.; Moffeit, K.; Moreno, O.; Munoz Camacho, C.; Nelson, T.; Niccolai, S.; Odian, A.; Oriunno, M.; Osipenko, M.; Paremuzyan, R.; Paul, S.; Randazzo, N.; Raydo, B.; Reese, B.; Rizzo, A.; Schuster, P.; Sharabian, Y. G.; Simi, G.; Simonyan, A.; Sipala, V.; Sokhan, D.; Solt, M.; Stepanyan, S.; Szumila-Vance, H.; Toro, N.; Uemura, S.; Ungaro, M.; Voskanyan, H.; Weinstein, L. B.; Wojtsekhowski, B.; Yale, B.

doi:10.1103/PhysRevD.98.091101

Title: Search for a dark photon in electroproduced $e^{+} e^{-}$ pairs with the Heavy Photon Search experiment at JLab

Journal Article · Mon Nov 12 00:00:00 EST 2018 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.98.091101· OSTI ID:1481815

Adrian, P. H.; Baltzell, N. A.; Battaglieri, M.; Bondí, M.; Boyarinov, S.; Bueltmann, S.; Burkert, V. D.; Calvo, D.; Carpinelli, M.; Celentano, A.; Charles, G.; Colaneri, L.; Cooper, W.; Cuevas, C.; D’Angelo, A.; Dashyan, N.; De Napoli, M.; De Vita, R.; Deur, A.; Dupre, R. more »

The Heavy Photon Search experiment took its first data in a 2015 engineering run using a 1.056 GeV, 50 nA electron beam provided by CEBAF at the Thomas Jefferson National Accelerator Facility, searching for a prompt, electroproduced dark photon with a mass between 19 and 81 MeV/c2. A search for a resonance in the e+e- invariant mass distribution, using 1.7 days (1170 nb-1) of data, showed no evidence of dark photon decays above the large QED background, confirming earlier searches and demonstrating the full functionality of the experiment. Upper limits on the square of the coupling of the dark photon to the standard model photon are set at the level of 6×10-6. Future runs with higher luminosity will explore new territory.

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Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: Heavy Photon Search Collaboration

Grant/Contract Number:: AC05-060R23177; AC02-07CH11359; AC02-76SF00515

OSTI ID:: 1481815

Alternate ID(s):: OSTI ID: 1473969; OSTI ID: 1482803; OSTI ID: 1490360

Report Number(s):: arXiv:1807.11530; FERMILAB-PUB-18-375-PPD; JLAB-PHY-18-2871; DOE/OR/23177-4587; PRVDAQ; 091101

Journal Information:: Physical Review D, Journal Name: Physical Review D Vol. 98 Journal Issue: 9; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 23 works

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