寻找A'→μ⁺μ⁻衰变。
Search for A^{'}→μ^{+}μ^{-} Decays.
作者信息
Aaij R, Abellán Beteta C, Ackernley T, Adeva B, Adinolfi M, Afsharnia H, Aidala C A, Aiola S, Ajaltouni Z, Akar S, Albicocco P, Albrecht J, Alessio F, Alexander M, Alfonso Albero A, Alkhazov G, Alvarez Cartelle P, Alves A A, Amato S, Amhis Y, An L, Anderlini L, Andreassi G, Andreotti M, Archilli F, Arnau Romeu J, Artamonov A, Artuso M, Arzymatov K, Aslanides E, Atzeni M, Audurier B, Bachmann S, Back J J, Baker S, Balagura V, Baldini W, Baranov A, Barlow R J, Barsuk S, Barter W, Bartolini M, Baryshnikov F, Bassi G, Batozskaya V, Batsukh B, Battig A, Battista V, Bay A, Becker M, Bedeschi F, Bediaga I, Beiter A, Bel L J, Belavin V, Belin S, Beliy N, Bellee V, Belous K, Belyaev I, Bencivenni G, Ben-Haim E, Benson S, Beranek S, Berezhnoy A, Bernet R, Berninghoff D, Bernstein H C, Bertholet E, Bertolin A, Betancourt C, Betti F, Bettler M O, Bezshyiko Ia, Bhasin S, Bhom J, Bieker M S, Bifani S, Billoir P, Bizzeti A, Bjørn M, Blago M P, Blake T, Blanc F, Blusk S, Bobulska D, Bocci V, Boente Garcia O, Boettcher T, Boldyrev A, Bondar A, Bondar N, Borghi S, Borisyak M, Borsato M, Borsuk J T, Bowcock T J V, Bozzi C, Braun S, Brea Rodriguez A, Brodski M, Brodzicka J, Brossa Gonzalo A, Brundu D, Buchanan E, Buonaura A, Burr C, Bursche A, Butter J S, Buytaert J, Byczynski W, Cadeddu S, Cai H, Calabrese R, Calero Diaz L, Cali S, Calladine R, Calvi M, Calvo Gomez M, Camboni A, Campana P, Campora Perez D H, Capriotti L, Carbone A, Carboni G, Cardinale R, Cardini A, Carniti P, Carvalho Akiba K, Casais Vidal A, Casse G, Cattaneo M, Cavallero G, Cenci R, Cerasoli J, Chapman M G, Charles M, Charpentier Ph, Chatzikonstantinidis G, Chefdeville M, Chekalina V, Chen C, Chen S, Chernov A, Chitic S-G, Chobanova V, Chrzaszcz M, Chubykin A, Ciambrone P, Cicala M F, Cid Vidal X, Ciezarek G, Cindolo F, Clarke P E L, Clemencic M, Cliff H V, Closier J, Cobbledick J L, Coco V, Coelho J A B, Cogan J, Cogneras E, Cojocariu L, Collins P, Colombo T, Comerma-Montells A, Contu A, Cooke N, Coombs G, Coquereau S, Corti G, Costa Sobral C M, Couturier B, Craik D C, Crkovska J, Crocombe A, Cruz Torres M, Currie R, Da Silva C L, Dall'Occo E, Dalseno J, D'Ambrosio C, Danilina A, d'Argent P, Davis A, De Aguiar Francisco O, De Bruyn K, De Capua S, De Cian M, De Miranda J M, De Paula L, De Serio M, De Simone P, de Vries J A, Dean C T, Dean W, Decamp D, Del Buono L, Delaney B, Dembinski H-P, Demmer M, Dendek A, Denysenko V, Derkach D, Deschamps O, Desse F, Dettori F, Dey B, Di Canto A, Di Nezza P, Didenko S, Dijkstra H, Dordei F, Dorigo M, Dos Reis A C, Douglas L, Dovbnya A, Dreimanis K, Dudek M W, Dufour L, Dujany G, Durante P, Durham J M, Dutta D, Dzhelyadin R, Dziewiecki M, Dziurda A, Dzyuba A, Easo S, Egede U, Egorychev V, Eidelman S, Eisenhardt S, Ekelhof R, Ek-In S, Eklund L, Ely S, Ene A, Escher S, Esen S, Evans T, Falabella A, Fan J, Farley N, Farry S, Fazzini D, Féo M, Fernandez Declara P, Fernandez Prieto A, Ferrari F, Ferreira Lopes L, Ferreira Rodrigues F, Ferreres Sole S, Ferrillo M, Ferro-Luzzi M, Filippov S, Fini R A, Fiorini M, Firlej M, Fischer K M, Fitzpatrick C, Fiutowski T, Fleuret F, Fontana M, Fontanelli F, Forty R, Franco Lima V, Franco Sevilla M, Frank M, Frei C, Friday D A, Fu J, Fuehring M, Funk W, Gabriel E, Gallas Torreira A, Galli D, Gallorini S, Gambetta S, Gan Y, Gandelman M, Gandini P, Gao Y, Garcia Martin L M, García Pardiñas J, Garcia Plana B, Garcia Rosales F A, Garra Tico J, Garrido L, Gascon D, Gaspar C, Gerick D, Gersabeck E, Gersabeck M, Gershon T, Gerstel D, Ghez Ph, Gibson V, Gioventù A, Girard O G, Gironella Gironell P, Giubega L, Giugliano C, Gizdov K, Gligorov V V, Göbel C, Golubkov D, Golutvin A, Gomes A, Gorbounov P, Gorelov I V, Gotti C, Govorkova E, Grabowski J P, Graciani Diaz R, Grammatico T, Granado Cardoso L A, Graugés E, Graverini E, Graziani G, Grecu A, Greim R, Griffith P, Grillo L, Gruber L, Gruberg Cazon B R, Gu C, Gushchin E, Guth A, Guz Yu, Gys T, Hadavizadeh T, Haefeli G, Haen C, Haines S C, Hamilton P M, Han Q, Han X, Hancock T H, Hansmann-Menzemer S, Harnew N, Harrison T, Hart R, Hasse C, Hatch M, He J, Hecker M, Heijhoff K, Heinicke K, Heister A, Hennequin A M, Hennessy K, Henry L, Heuel J, Hicheur A, Hidalgo Charman R, Hill D, Hilton M, Hopchev P H, Hu J, Hu W, Huang W, Hulsbergen W, Humair T, Hunter R J, Hushchyn M, Hutchcroft D, Hynds D, Ibis P, Idzik M, Ilten P, Inglessi A, Inyakin A, Ivshin K, Jacobsson R, Jakobsen S, Jalocha J, Jans E, Jashal B K, Jawahery A, Jevtic V, Jiang F, John M, Johnson D, Jones C R, Jost B, Jurik N, Kandybei S, Karacson M, Kariuki J M, Kazeev N, Kecke M, Keizer F, Kelsey M, Kenzie M, Ketel T, Khanji B, Kharisova A, Kim K E, Kirn T, Kirsebom V S, Klaver S, Klimaszewski K, Koliiev S, Kondybayeva A, Konoplyannikov A, Kopciewicz P, Kopecna R, Koppenburg P, Kostiuk I, Kot O, Kotriakhova S, Kravchuk L, Krawczyk R D, Kreps M, Kress F, Kretzschmar S, Krokovny P, Krupa W, Krzemien W, Kucewicz W, Kucharczyk M, Kudryavtsev V, Kuindersma H S, Kunde G J, Kuonen A K, Kvaratskheliya T, Lacarrere D, Lafferty G, Lai A, Lancierini D, Lane J J, Lanfranchi G, Langenbruch C, Latham T, Lazzari F, Lazzeroni C, Le Gac R, Lefèvre R, Leflat A, Lemaitre F, Leroy O, Lesiak T, Leverington B, Li H, Li X, Li Y, Li Z, Liang X, Lindner R, Lionetto F, Lisovskyi V, Liu G, Liu X, Loh D, Loi A, Lomba Castro J, Longstaff I, Lopes J H, Loustau G, Lovell G H, Lu Y, Lucchesi D, Lucio Martinez M, Luo Y, Lupato A, Luppi E, Lupton O, Lusiani A, Lyu X, Maccolini S, Machefert F, Maciuc F, Macko V, Mackowiak P, Maddrell-Mander S, Madhan Mohan L R, Maev O, Maevskiy A, Maguire K, Maisuzenko D, Majewski M W, Malde S, Malecki B, Malinin A, Maltsev T, Malygina H, Manca G, Mancinelli G, Manera Escalero R, Manuzzi D, Marangotto D, Maratas J, Marchand J F, Marconi U, Mariani S, Marin Benito C, Marinangeli M, Marino P, Marks J, Marshall P J, Martellotti G, Martinazzoli L, Martinelli M, Martinez Santos D, Martinez Vidal F, Massafferri A, Materok M, Matev R, Mathad A, Mathe Z, Matiunin V, Matteuzzi C, Mattioli K R, Mauri A, Maurice E, McCann M, Mcconnell L, McNab A, McNulty R, Mead J V, Meadows B, Meaux C, Meier G, Meinert N, Melnychuk D, Meloni S, Merk M, Merli A, Mikhasenko M, Milanes D A, Millard E, Minard M-N, Mineev O, Minzoni L, Mitchell S E, Mitreska B, Mitzel D S, Mödden A, Mogini A, Moise R D, Mombächer T, Monroy I A, Monteil S, Morandin M, Morello G, Morello M J, Moron J, Morris A B, Morris A G, Mountain R, Mu H, Muheim F, Mukherjee M, Mulder M, Müller D, Müller K, Müller V, Murphy C H, Murray D, Muzzetto P, Naik P, Nakada T, Nandakumar R, Nandi A, Nanut T, Nasteva I, Needham M, Neri N, Neubert S, Neufeld N, Newcombe R, Nguyen T D, Nguyen-Mau C, Niel E M, Nieswand S, Nikitin N, Nolte N S, Nunez C, Oblakowska-Mucha A, Obraztsov V, Ogilvy S, O'Hanlon D P, Oldeman R, Onderwater C J G, Osborn J D, Ossowska A, Otalora Goicochea J M, Ovsiannikova T, Owen P, Oyanguren A, Pais P R, Pajero T, Palano A, Palutan M, Panshin G, Papanestis A, Pappagallo M, Pappalardo L L, Pappenheimer C, Parker W, Parkes C, Passaleva G, Pastore A, Patel M, Patrignani C, Pearce A, Pellegrino A, Pepe Altarelli M, Perazzini S, Pereima D, Perret P, Pescatore L, Petridis K, Petrolini A, Petrov A, Petrucci S, Petruzzo M, Pietrzyk B, Pietrzyk G, Pikies M, Pili M, Pinci D, Pinzino J, Pisani F, Piucci A, Placinta V, Playfer S, Plews J, Plo Casasus M, Polci F, Poli Lener M, Poliakova M, Poluektov A, Polukhina N, Polyakov I, Polycarpo E, Pomery G J, Ponce S, Popov A, Popov D, Poslavskii S, Prasanth K, Promberger L, Prouve C, Pugatch V, Puig Navarro A, Pullen H, Punzi G, Qian W, Qin J, Quagliani R, Quintana B, Raab N V, Rabadan Trejo R I, Rachwal B, Rademacker J H, Rama M, Ramos Pernas M, Rangel M S, Ratnikov F, Raven G, Ravonel Salzgeber M, Reboud M, Redi F, Reichert S, Reiss F, Remon Alepuz C, Ren Z, Renaudin V, Ricciardi S, Richards S, Rinnert K, Robbe P, Robert A, Rodrigues A B, Rodrigues E, Rodriguez Lopez J A, Roehrken M, Roiser S, Rollings A, Romanovskiy V, Romero Lamas M, Romero Vidal A, Roth J D, Rotondo M, Rudolph M S, Ruf T, Ruiz Vidal J, Ryzka J, Saborido Silva J J, Sagidova N, Saitta B, Sanchez Gras C, Sanchez Mayordomo C, Sanmartin Sedes B, Santacesaria R, Santamarina Rios C, Santimaria M, Santovetti E, Sarpis G, Sarti A, Satriano C, Satta A, Saur M, Savrina D, Scantlebury Smead L G, Schael S, Schellenberg M, Schiller M, Schindler H, Schmelling M, Schmelzer T, Schmidt B, Schneider O, Schopper A, Schreiner H F, Schubiger M, Schulte S, Schune M H, Schwemmer R, Sciascia B, Sciubba A, Sellam S, Semennikov A, Sergi A, Serra N, Serrano J, Sestini L, Seuthe A, Seyfert P, Shangase D M, Shapkin M, Shears T, Shekhtman L, Shevchenko V, Shmanin E, Shupperd J D, Siddi B G, Silva Coutinho R, Silva de Oliveira L, Simi G, Simone S, Skiba I, Skidmore N, Skwarnicki T, Slater M W, Smeaton J G, Smetkina A, Smith E, Smith I T, Smith M, Snoch A, Soares M, Soares Lavra L, Sokoloff M D, Soler F J P, Souza De Paula B, Spaan B, Spadaro Norella E, Spradlin P, Stagni F, Stahl M, Stahl S, Stefko P, Stefkova S, Steinkamp O, Stemmle S, Stenyakin O, Stepanova M, Stevens H, Stone S, Stracka S, Stramaglia M E, Straticiuc M, Strokov S, Sun J, Sun L, Sun Y, Svihra P, Swientek K, Szabelski A, Szumlak T, Szymanski M, Taneja S, Tang Z, Tekampe T, Tellarini G, Teubert F, Thomas E, Thomson K A, Tilley M J, Tisserand V, T'Jampens S, Tobin M, Tolk S, Tomassetti L, Tonelli D, Tou D Y, Tournefier E, Traill M, Tran M T, Trippl C, Trisovic A, Tsaregorodtsev A, Tuci G, Tully A, Tuning N, Ukleja A, Usachov A, Ustyuzhanin A, Uwer U, Vagner A, Vagnoni V, Valassi A, Valenti G, van Beuzekom M, Van Hecke H, van Herwijnen E, Van Hulse C B, van Tilburg J, van Veghel M, Vazquez Gomez R, Vazquez Regueiro P, Vázquez Sierra C, Vecchi S, Velthuis J J, Veltri M, Venkateswaran A, Vernet M, Veronesi M, Vesterinen M, Viana Barbosa J V, Vieira D, Vieites Diaz M, Viemann H, Vilasis-Cardona X, Vitkovskiy A, Volkov V, Vollhardt A, Vom Bruch D, Vorobyev A, Vorobyev V, Voropaev N, Waldi R, Walsh J, Wang J, Wang J, Wang J, Wang M, Wang Y, Wang Z, Ward D R, Wark H M, Watson N K, Websdale D, Weiden A, Weisser C, Westhenry B D C, White D J, Whitehead M, Wiedner D, Wilkinson G, Wilkinson M, Williams I, Williams M, Williams M R J, Williams T, Wilson F F, Winn M, Wislicki W, Witek M, Wormser G, Wotton S A, Wu H, Wyllie K, Xiang Z, Xiao D, Xie Y, Xing H, Xu A, Xu L, Xu M, Xu Q, Xu Z, Xu Z, Yang Z, Yang Z, Yao Y, Yeomans L E, Yin H, Yu J, Yuan X, Yushchenko O, Zarebski K A, Zavertyaev M, Zdybal M, Zeng M, Zhang D, Zhang L, Zhang S, Zhang W C, Zhang Y, Zhelezov A, Zheng Y, Zhou X, Zhou Y, Zhu X, Zhukov V, Zonneveld J B, Zucchelli S
机构信息
Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands.
Physik-Institut, Universität Zürich, Zürich, Switzerland.
出版信息
Phys Rev Lett. 2020 Jan 31;124(4):041801. doi: 10.1103/PhysRevLett.124.041801.
Searches are performed for both promptlike and long-lived dark photons, A^{'}, produced in proton-proton collisions at a center-of-mass energy of 13 TeV. These searches look for A^{'}→μ^{+}μ^{-} decays using a data sample corresponding to an integrated luminosity of 5.5 fb^{-1} collected with the LHCb detector. Neither search finds evidence for a signal, and 90% confidence-level exclusion limits are placed on the γ-A^{'} kinetic mixing strength. The promptlike A^{'} search explores the mass region from near the dimuon threshold up to 70 GeV and places the most stringent constraints to date on dark photons with 214<m(A^{'})≲740 MeV and 10.6<m(A^{'})≲30 GeV. The search for long-lived A^{'}→μ^{+}μ^{-} decays places world-leading constraints on low-mass dark photons with lifetimes O(1) ps.
针对在质心能量为13 TeV的质子 - 质子碰撞中产生的类即时和长寿命暗光子(A^{'})进行了搜索。这些搜索使用与LHCb探测器收集的5.5 fb⁻¹积分亮度相对应的数据样本，寻找(A^{'}→μ^{+}μ^{-})衰变。两项搜索均未发现信号迹象，并对(γ - A^{'})动力学混合强度设置了90%置信水平的排除极限。类即时(A^{'})搜索探索了从近双μ子阈值到70 GeV的质量区域，并对质量为214<(m(A^{'}))≲740 MeV和10.6<(m(A^{'}))≲30 GeV的暗光子设置了迄今为止最严格的限制。对长寿命(A^{'}→μ^{+}μ^{-})衰变的搜索对寿命为(O(1)) ps的低质量暗光子设置了世界领先的限制。
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