Measurement of forward top pair production in the dilepton channel in pp collisions at $$ \sqrt{s}=13 $$ TeV

Author:

,Aaij R.,Adeva B.,Adinolfi M.,Ajaltouni Z.,Akar S.,Albrecht J.,Alessio F.,Alexander M.,Alfonso Albero A.,Ali S.,Alkhazov G.,Alvarez Cartelle P.,Alves A. A.,Amato S.,Amerio S.,Amhis Y.,An L.,Anderlini L.,Andreassi G.,Andreotti M.,Andrews J. E.,Appleby R. B.,Archilli F.,d’Argent P.,Arnau Romeu J.,Artamonov A.,Artuso M.,Aslanides E.,Atzeni M.,Auriemma G.,Babuschkin I.,Bachmann S.,Back J. J.,Badalov A.,Baesso C.,Baker S.,Balagura V.,Baldini W.,Baranov A.,Barlow R. J.,Barschel C.,Barsuk S.,Barter W.,Baryshnikov F.,Batozskaya V.,Battista V.,Bay A.,Beddow J.,Bedeschi F.,Bediaga I.,Beiter A.,Bel L. J.,Beliy N.,Bellee V.,Belloli N.,Belous K.,Belyaev I.,Ben-Haim E.,Bencivenni G.,Benson S.,Beranek S.,Berezhnoy A.,Bernet R.,Berninghoff D.,Bertholet E.,Bertolin A.,Betancourt C.,Betti F.,Bettler M. O.,van Beuzekom M.,Bezshyiko Ia.,Bifani S.,Billoir P.,Birnkraut A.,Bizzeti A.,Bjørn M.,Blake T.,Blanc F.,Blusk S.,Bocci V.,Boettcher T.,Bondar A.,Bondar N.,Bordyuzhin I.,Borghi S.,Borisyak M.,Borsato M.,Bossu F.,Boubdir M.,Bowcock T. J. V.,Bowen E.,Bozzi C.,Braun S.,Brodzicka J.,Brundu D.,Buchanan E.,Burr C.,Bursche A.,Buytaert J.,Byczynski W.,Cadeddu S.,Cai H.,Calabrese R.,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.,Carson L.,Carvalho Akiba K.,Casse G.,Cassina L.,Cattaneo M.,Cavallero G.,Cenci R.,Chamont D.,Chapman M. G.,Charles M.,Charpentier Ph.,Chatzikonstantinidis G.,Chefdeville M.,Chen S.,Cheung S. F.,Chitic S.-G.,Chobanova V.,Chrzaszcz M.,Chubykin A.,Ciambrone P.,Cid Vidal X.,Ciezarek G.,Clarke P. E. L.,Clemencic M.,Cliff H. V.,Closier J.,Coco V.,Cogan J.,Cogneras E.,Cogoni V.,Cojocariu L.,Collins P.,Colombo T.,Comerma-Montells A.,Contu A.,Coombs G.,Coquereau S.,Corti G.,Corvo M.,Costa Sobral C. M.,Couturier B.,Cowan G. A.,Craik D. C.,Crocombe A.,Cruz Torres M.,Currie R.,D’Ambrosio C.,Da Cunha Marinho F.,Da Silva C. L.,Dall’Occo E.,Dalseno J.,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.,Dean C. T.,Decamp D.,Del Buono L.,Delaney B.,Dembinski H.-P.,Demmer M.,Dendek A.,Derkach D.,Deschamps O.,Dettori F.,Dey B.,Di Canto A.,Di Nezza P.,Dijkstra H.,Dordei F.,Dorigo M.,Dosil Suárez A.,Douglas L.,Dovbnya A.,Dreimanis K.,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.,Eitschberger U.,Ekelhof R.,Eklund L.,Ely S.,Ene A.,Esen S.,Evans H. M.,Evans T.,Falabella A.,Farley N.,Farry S.,Fazzini D.,Federici L.,Fernandez G.,Fernandez Declara P.,Fernandez Prieto A.,Ferrari F.,Ferreira Lopes L.,Ferreira Rodrigues F.,Ferro-Luzzi M.,Filippov S.,Fini R. A.,Fiorini M.,Firlej M.,Fitzpatrick C.,Fiutowski T.,Fleuret F.,Fontana M.,Fontanelli F.,Forty R.,Franco Lima V.,Frank M.,Frei C.,Fu J.,Funk W.,Furfaro E.,Färber C.,Gabriel E.,Gallas Torreira A.,Galli D.,Gallorini S.,Gambetta S.,Gandelman M.,Gandini P.,Gao Y.,Garcia Martin L. M.,García Pardiñas J.,Garra Tico J.,Garrido L.,Gascon D.,Gaspar C.,Gavardi L.,Gazzoni G.,Gerick D.,Gersabeck E.,Gersabeck M.,Gershon T.,Ghez Ph.,Gianí S.,Gibson V.,Girard O. G.,Giubega L.,Gizdov K.,Gligorov V. V.,Golubkov D.,Golutvin A.,Gomes A.,Gorelov I. V.,Gotti C.,Govorkova E.,Grabowski J. P.,Graciani Diaz R.,Granado Cardoso L. A.,Graugés E.,Graverini E.,Graziani G.,Grecu A.,Greim R.,Griffith P.,Grillo L.,Gruber L.,Gruberg Cazon B. R.,Grünberg O.,Gushchin E.,Guz Yu.,Gys T.,Göbel C.,Hadavizadeh T.,Hadjivasiliou C.,Haefeli G.,Haen C.,Haines S. C.,Hamilton B.,Han X.,Hancock T. H.,Hansmann-Menzemer S.,Harnew N.,Harnew S. T.,Hasse C.,Hatch M.,He J.,Hecker M.,Heinicke K.,Heister A.,Hennessy K.,Henrard P.,Henry L.,van Herwijnen E.,Heß M.,Hicheur A.,Hill D.,Hopchev P. H.,Hu W.,Huang W.,Huard Z. C.,Hulsbergen W.,Humair T.,Hushchyn M.,Hutchcroft D.,Ibis P.,Idzik M.,Ilten P.,Jacobsson R.,Jalocha J.,Jans E.,Jawahery A.,Jiang F.,John M.,Johnson D.,Jones C. R.,Joram C.,Jost B.,Jurik N.,Kandybei S.,Karacson M.,Kariuki J. M.,Karodia S.,Kazeev N.,Kecke M.,Keizer F.,Kelsey M.,Kenzie M.,Ketel T.,Khairullin E.,Khanji B.,Khurewathanakul C.,Kim K. E.,Kirn T.,Klaver S.,Klimaszewski K.,Klimkovich T.,Koliiev S.,Kolpin M.,Kopecna R.,Koppenburg P.,Kosmyntseva A.,Kotriakhova S.,Kozeiha M.,Kravchuk L.,Kreps M.,Kress F.,Krokovny P.,Krzemien W.,Kucewicz W.,Kucharczyk M.,Kudryavtsev V.,Kuonen A. K.,Kvaratskheliya T.,Lacarrere D.,Lafferty G.,Lai A.,Lanfranchi G.,Langenbruch C.,Latham T.,Lazzeroni C.,Le Gac R.,Leflat A.,Lefrançois J.,Lefèvre R.,Lemaitre F.,Lemos Cid E.,Lenisa P.,Leroy O.,Lesiak T.,Leverington B.,Li P.-R.,Li T.,Li Y.,Li Z.,Liang X.,Likhomanenko T.,Lindner R.,Lionetto F.,Lisovskyi V.,Liu X.,Loh D.,Loi A.,Longstaff I.,Lopes J. H.,Lucchesi D.,Lucio Martinez M.,Lupato A.,Luppi E.,Lupton O.,Lusiani A.,Lyu X.,Machefert F.,Maciuc F.,Macko V.,Mackowiak P.,Maddrell-Mander S.,Maev O.,Maguire K.,Maisuzenko D.,Majewski M. W.,Malde S.,Malecki B.,Malinin A.,Maltsev T.,Manca G.,Mancinelli G.,Marangotto D.,Maratas J.,Marchand J. F.,Marconi U.,Marin Benito C.,Marinangeli M.,Marino P.,Marks J.,Martellotti G.,Martin M.,Martinelli M.,Martinez Santos D.,Martinez Vidal F.,Massafferri A.,Matev R.,Mathad A.,Mathe Z.,Matteuzzi C.,Mauri A.,Maurice E.,Maurin B.,Mazurov A.,McCann M.,McNab A.,McNulty R.,Mead J. V.,Meadows B.,Meaux C.,Meier F.,Meinert N.,Melnychuk D.,Merk M.,Merli A.,Michielin E.,Milanes D. A.,Millard E.,Minard M.-N.,Minzoni L.,Mitzel D. S.,Mogini A.,Molina Rodriguez J.,Mombächer T.,Monroy I. A.,Monteil S.,Morandin M.,Morello M. J.,Morgunova O.,Moron J.,Morris A. B.,Mountain R.,Muheim F.,Mulder M.,Müller D.,Müller J.,Müller K.,Müller V.,Naik P.,Nakada T.,Nandakumar R.,Nandi A.,Nasteva I.,Needham M.,Neri N.,Neubert S.,Neufeld N.,Neuner M.,Nguyen T. D.,Nguyen-Mau C.,Nieswand S.,Niet R.,Nikitin N.,Nikodem T.,Nogay A.,O’Hanlon D. P.,Oblakowska-Mucha A.,Obraztsov V.,Ogilvy S.,Oldeman R.,Onderwater C. J. G.,Ossowska A.,Otalora Goicochea J. M.,Owen P.,Oyanguren A.,Pais P. R.,Palano A.,Palutan M.,Panshin G.,Papanestis A.,Pappagallo M.,Pappalardo L. L.,Parker W.,Parkes C.,Passaleva G.,Pastore A.,Patel M.,Patrignani C.,Pearce A.,Pellegrino A.,Penso G.,Pepe Altarelli M.,Perazzini S.,Pereima D.,Perret P.,Pescatore L.,Petridis K.,Petrolini A.,Petrov A.,Petruzzo M.,Picatoste Olloqui E.,Pietrzyk B.,Pietrzyk G.,Pikies M.,Pinci D.,Pisani F.,Pistone A.,Piucci A.,Placinta V.,Playfer S.,Plo Casasus M.,Polci F.,Poli Lener M.,Poluektov A.,Polyakov I.,Polycarpo E.,Pomery G. J.,Ponce S.,Popov A.,Popov D.,Poslavskii S.,Potterat C.,Price E.,Prisciandaro J.,Prouve C.,Pugatch V.,Puig Navarro A.,Pullen H.,Punzi G.,Qian W.,Qin J.,Quagliani R.,Quintana B.,Rachwal B.,Rademacker J. H.,Rama M.,Ramos Pernas M.,Rangel M. S.,Raniuk I.,Ratnikov F.,Raven G.,Ravonel Salzgeber M.,Reboud M.,Redi F.,Reichert S.,dos Reis A. C.,Remon Alepuz C.,Renaudin V.,Ricciardi S.,Richards S.,Rihl M.,Rinnert K.,Robbe P.,Robert A.,Rodrigues A. B.,Rodrigues E.,Rodriguez Lopez J. A.,Rogozhnikov A.,Roiser S.,Rollings A.,Romanovskiy V.,Romero Vidal A.,Rotondo M.,Rudolph M. S.,Ruf T.,Ruiz Valls P.,Ruiz Vidal J.,Saborido Silva J. J.,Sadykhov E.,Sagidova N.,Saitta B.,Salustino Guimaraes V.,Sanchez Mayordomo C.,Sanmartin Sedes B.,Santacesaria R.,Santamarina Rios C.,Santimaria M.,Santovetti E.,Sarpis G.,Sarti A.,Satriano C.,Satta A.,Saunders D. M.,Savrina D.,Schael S.,Schellenberg M.,Schiller M.,Schindler H.,Schmelling M.,Schmelzer T.,Schmidt B.,Schneider O.,Schopper A.,Schreiner H. F.,Schubiger M.,Schune M. H.,Schwemmer R.,Sciascia B.,Sciubba A.,Semennikov A.,Sepulveda E. S.,Sergi A.,Serra N.,Serrano J.,Sestini L.,Seyfert P.,Shapkin M.,Shcheglov Y.,Shears T.,Shekhtman L.,Shevchenko V.,Siddi B. G.,Silva Coutinho R.,Silva de Oliveira L.,Simi G.,Simone S.,Skidmore N.,Skwarnicki T.,Smith I. T.,Smith J.,Smith M.,Soares Lavra l.,Sokoloff M. D.,Soler F. J. P.,Souza De Paula B.,Spaan B.,Spradlin P.,Stagni F.,Stahl M.,Stahl S.,Stefko P.,Stefkova S.,Steinkamp O.,Stemmle S.,Stenyakin O.,Stepanova M.,Stevens H.,Stone S.,Storaci B.,Stracka S.,Stramaglia M. E.,Straticiuc M.,Straumann U.,Strokov S.,Sun J.,Sun L.,Swientek K.,Syropoulos V.,Szumlak T.,Szymanski M.,T’Jampens S.,Tayduganov A.,Tekampe T.,Tellarini G.,Teubert F.,Thomas E.,van Tilburg J.,Tilley M. J.,Tisserand V.,Tobin M.,Tolk S.,Tomassetti L.,Tonelli D.,Tourinho Jadallah Aoude R.,Tournefier E.,Traill M.,Tran M. T.,Tresch M.,Trisovic A.,Tsaregorodtsev A.,Tsopelas P.,Tully A.,Tuning N.,Ukleja A.,Usachov A.,Ustyuzhanin A.,Uwer U.,Vacca C.,Vagner A.,Vagnoni V.,Valassi A.,Valat S.,Valenti G.,Vazquez Gomez R.,Vazquez Regueiro P.,Vecchi S.,van Veghel M.,Velthuis J. J.,Veltri M.,Veneziano G.,Venkateswaran A.,Verlage T. A.,Vernet M.,Vesterinen M.,Viana Barbosa J. V.,Vieira D.,Vieites Diaz M.,Viemann H.,Vilasis-Cardona X.,Vitkovskiy A.,Vitti M.,Volkov V.,Vollhardt A.,Voneki B.,Vorobyev A.,Vorobyev V.,Voß C.,de Vries J. A.,Vázquez Sierra C.,Waldi R.,Walsh J.,Wang J.,Wang Y.,Ward D. R.,Wark H. M.,Watson N. K.,Websdale D.,Weiden A.,Weisser C.,Whitehead M.,Wicht J.,Wilkinson G.,Wilkinson M.,Williams M. R. J.,Williams M.,Williams T.,Wilson F. F.,Wimberley J.,Winn M.,Wishahi J.,Wislicki W.,Witek M.,Wormser G.,Wotton S. A.,Wyllie K.,Xie Y.,Xu M.,Xu Q.,Xu Z.,Xu Z.,Yang Z.,Yang Z.,Yao Y.,Yin H.,Yu J.,Yuan X.,Yushchenko O.,Zarebski K. A.,Zavertyaev M.,Zhang L.,Zhang Y.,Zhelezov A.,Zheng Y.,Zhu X.,Zhukov V.,Zonneveld J. B.,Zucchelli S.

Abstract

Abstract Forward top quark pair production is studied in pp collisions in the μeb final state using a data sample corresponding to an integrated luminosity of 1.93 fb−1 collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. The cross-section is measured in a fiducial region where both leptons have a transverse momentum greater than 20 GeV and a pseudorapidity between 2.0 and 4.5. The quadrature sum of the azimuthal separation and the difference in pseudorapidities, denoted ΔR, between the two leptons must be larger than 0.1. The b-jet axis is required to be separated from both leptons by a ΔR of 0.5, and to have a transverse momentum in excess of 20 GeV and a pseudorapidity between 2.2 and 4.2. The cross-section is measured to be $$ {\sigma}_{t\overline{t}}=126\pm 19\left(\mathrm{stat}\right)\pm 16\left(\mathrm{syst}\right)\pm 5\left(\mathrm{lumi}\right)\mathrm{f}\mathrm{b} $$ σ t t ¯ = 126 ± 19 stat ± 16 syst ± 5 lumi f b where the first uncertainty is statistical, the second is systematic, and the third is due to the luminosity determination. The measurement is compatible with the Standard Model prediction.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Reference32 articles.

1. R. Gauld, Feasibility of top quark measurements at LHCb and constraints on the large-x gluon PDF, JHEP 02 (2014) 126 [arXiv:1311.1810] [INSPIRE].

2. A.L. Kagan, J.F. Kamenik, G. Perez and S. Stone, Top LHCb Physics, Phys. Rev. Lett. 107 (2011) 082003 [arXiv:1103.3747] [INSPIRE].

3. R. Gauld, Leptonic top-quark asymmetry predictions at LHCb, Phys. Rev. D 91 (2015) 054029 [arXiv:1409.8631] [INSPIRE].

4. LHCb collaboration, First observation of top quark production in the forward region, Phys. Rev. Lett. 115 (2015) 112001 [arXiv:1506.00903] [INSPIRE].

5. LHCb collaboration, Measurement of forward $$ t\overline{t} $$ , $$ W+b\overline{b}\kern0.5em and\kern0.5em W+c\overline{c} $$ production in pp collisions at $$ \sqrt{s}=8 $$ TeV, Phys. Lett. B 767 (2017) 110 [arXiv:1610.08142] [INSPIRE].

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