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  • Search for a singly produce...
    Krätschmer, Ilse; De Lentdecker, Gilles; Fasanella, Giuseppe; Bruno, Giacomo; Delaere, Christophe; De Jesus Damiao, Dilson; Santoro, Alberto; Yuan, Li; Bian, Jian-Guo; Wang, Chunjie; Couderc, Fabrice; Titov, Maksym; Lobanov, Artur; Chierici, Roberto; Laktineh, Imad Baptiste; Lomidze, David; Beernaert, Kelly; Tholen, Heiner; Kutzner, Viktor; Simonis, Hans-Jürgen; Kyriakis, Aristotelis; Topsis-Giotis, Iasonas; Paradas, Evangelos; Hajdu, Csaba; Sikler, Ferenc; Garg, Rocky Bala; Naimuddin, Md; Bharti, Monika; Sharan, Manoj; Thakur, Shalini; Chudasama, Ruchi; Abbrescia, Marcello; Abbiendi, Giovanni; Battilana, Carlo; Rossi, Antonio; Dinardo, Mauro Emanuele; Ronchese, Paolo; Verdini, Piero Giorgio; Staiano, Amedeo; Kim, Hyunchul; Hong, Byung-Sik; Kim, Jae Sung; Choi, Young-Il; Pedraza, Isabel; Shah, Mehar Ali; Krolikowski, Jan; Bargassa, Pedrame; Perelygin, Victor; Klyukhin, Vyacheslav; Bayshev, Igor; Slabospitskii, Sergei; Dordevic, Milos; Brochero Cifuentes, Javier Andres; Fernández Ramos, Juan Pablo; Senghi Soares, Mara; Lecoq, Paul; Mersi, Stefano; Pierini, Maurizio; Stakia, Anna; Deiters, Konrad; Langenegger, Urs; Dissertori, Günther; Heidegger, Constantin; Amsler, Claude; Donato, Silvio; Pinna, Deborah; Tok, Ufuk Guney; Cussans, David; Cockerill, David JA; Linacre, Jacob; Williams, Thomas; Lyons, Louis; Malik, Sarah; Morton, Alexander; Buccilli, Andrew; Landsberg, Greg; Padhi, Sanjay; Yagil, Avraham; Incandela, Joe; Anderson, Dustin; Weinberg, Marc; Spiegel, Leonard; Bortignon, Pierluigi; Curry, David; Sharma, Varun; Rahmani, Mehdi; Gandrajula, Reddy Pratap; Moeller, Anthony; Snyder, Christina; Wyslouch, Bolek; Evans, Andrew; Nourbakhsh, Shervin; Ruckstuhl, Nicole; Hahn, Kristan Allan; Kellams, Nathan; Gutay, Laszlo; Shi, Wei; Dalchenko, Mykhailo; Rathjens, Denis; Greene, Senta

    2018
    Report

    A search is presented for a singly produced third-generation scalar leptoquark decaying to a $τ$ lepton and a bottom quark. Associated production of a leptoquark and a $τ$ lepton is considered, leading to a final state with a bottom quark and two $τ$ leptons. The search uses proton-proton collision data at a center-of-mass energy of 13 TeV recorded with the CMS detector, corresponding to an integrated luminosity of 35.9 fb$^{−1}$. Upper limits are set at 95% confidence level on the production cross section of the third-generation scalar leptoquarks as a function of their mass. From a comparison of the results with the theoretical predictions, a third-generation scalar leptoquark decaying to a τ lepton and a bottom quark, assuming unit Yukawa coupling ($λ$), is excluded for masses below 740 GeV. Limits are also set on $λ$ of the hypothesized leptoquark as a function of its mass. Above $λ$ = 1.4, this result provides the best upper limit on the mass of a third-generation scalar leptoquark decaying to a $τ$ lepton and a bottom quark.