• Corpus ID: 210932441

Strong constraints on the $K^0_{\mathrm{S}}\rightarrow\mu^{+}\mu^{-}$ branching fraction

@article{Aaij2020StrongCO,
  title={Strong constraints on the \$K^0\_\{\mathrm\{S\}\}\rightarrow\mu^\{+\}\mu^\{-\}\$ branching fraction},
  author={LHCb collaboration R. Aaij and Carlos Abellan Beteta and Thomas Ackernley and Bernardo Adeva and Marco Adinolfi and Hossein Afsharnia and Christine A. Aidala and S. Aiola and Ziad Ajaltouni and S. Akar and Pietro Albicocco and Johannes Albrecht and Federico Alessio and Michael Thomas Alexander and Alejandro Alfonso Albero and Georgy Alkhazov and Paula Alvarez Cartelle and A. A. Alves and S. Amato and Y. Amhis and L. An and Lucio Anderlini and Guido Andreassi and Mirco Andreotti and Flavio Archilli and Joan Arnau Romeu and Andrei Artamonov and Marina Artuso and Kenenbek Arzymatov and Elie Aslanides and Michele Atzeni and Benjamin Audurier and Sebastian Bachmann and John Back and Stephen Baker and Vladislav Balagura and Wander Baldini and Alexander V. Baranov and R. J. Barlow and Sergey Barsuk and William Barter and Matteo Bartolini and Fedor Baryshnikov and Giovanni Bassi and Varvara Batozskaya and Baasansuren Batsukh and Alexander Battig and Aurelio Bay and Maurice Becker and F Bedeschi and I. Bediaga and Andrew Beiter and Lennaert Bel and Vladislav Belavin and Samuel Belin and Nikita Beliy and Violaine Bell{\'e}e and K. Belous and I. Belyaev and Giovanni Bencivenni and E. Ben-Haim and Sean Benson and Sarah Beranek and Alexander V. Berezhnoy and Roland Bernet and Daniel Berninghoff and Harris Conan Bernstein and Claudia Bertella and Emilie Bertholet and Alessandro Bertolin and Christopher Betancourt and Federico Betti and Marc-Olivier Bettler and Ia. Bezshyiko and Srishti Bhasin and Jihyun Bhom and Martin Stefan Bieker and Simone Bifani and P. Billoir and Andrea Bizzeti and M. Bj{\o}rn and Michele Piero Blago and Thomas Blake and Fr{\'e}d{\'e}ric Blanc and Steven Blusk and Dana Seman Bobulska and Valerio Bocci and {\'O}scar Boente Garc{\'i}a and Thomas Julian Boettcher and A. S. Boldyrev and Alexander E. Bondar and Nikolay Bondar and Silvia Borghi and Maxim Borisyak and M. Borsato and Jozef Tomasz Borsuk and T. J. v. Bowcock and C. Bozzi and Matthew John Bradley and Svende Annelies Braun and A. Brea Rodriguez and Michael Brodski and Jolanta Brodzicka and Arnau Brossa Gonzalo and Davide Brundu and Emma Buchanan and Annarita Buonaura and C. Burr and Albert Bursche and J. S. Butter and Jan A. N. Buytaert and Wiktor Byczynski and Sandro Cadeddu and Hao Cai and Roberto Calabrese and Liliet Calero Diaz and Stefano Cal{\'i} and Ryan Calladine and Marta Calvi and Miriam Calvo Gomez and Alessandro Camboni and Pierluigi Campana and Daniel Hugo C{\'a}mpora P{\'e}rez and L. Capriotti and A. Carbone and Giovanni Carboni and Roberta Cardinale and Alessandro Cardini and Paolo Carniti and Kazuyoshi Carvalho Akiba and Adriana C. Vidal and Gianluigi Casse and Marco Cattaneo and G Cavallero and Sara Celani and Riccardo Cenci and Jacopo Cerasoli and M. G. Chapman and M. J. Charles and Ph. Charpentier and Georgios Chatzikonstantinidis and M. Chefdeville and Viktoriia Chekalina and C. H. Chen and S. Chen and Aleksei Chernov and S.-G. Chitic and V. Chobanova and M. Chrząszcz and Alexsei Chubykin and Paolo Ciambrone and Maria Flavia Cicala and Xabier Cid Vidal and Gregory Max Ciezarek and F. Cindolo and P. E. L. Clarke and Marco Clemencic and Harry Victor Cliff and Joel Closier and John Leslie Cobbledick and Victor Coco and Jo{\~a}o A. B. Coelho and Julien Cogan and Eric Cogneras and Lucian Nicolae Cojocariu and Paula Collins and Tommaso Colombo and Albert Comerma-Montells and Andrea Contu and Naomi Cooke and George Coombs and Samuel Coquereau and Gloria Corti and Cayo Mar Costa Sobral and Benjamin Couturier and Daniel C. Craik and Jana Crkovská and A. Crocombe and Melissa Maria Cruz Torres and Robert Currie and C. L. Da Silva and Elena Dall’Occo and J. Dalseno and Carmelo D’Ambrosio and A V Danilina and Philippe d'Argent and Adam C. S. Davis and Oscar De Aguiar Francisco and Kristof De Bruyn and Stefano de Capua and Michel De Cian and Jussara M. de Miranda and Leandro de Paula and Marilisa De Serio and Patrizia De Simone and Jacco Andreas De Vries and Cameron Thomas Dean and William Dean and Daniel Decamp and Luigi Del Buono and Blaise Delaney and Hans Peter Dembinski and Moritz Demmer and Adam Mateusz Dendek and Vadym Denysenko and Denis Derkach and O. 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Saborido Silva and Naylya Sagidova and Biagio Saitta and Cristina Sanchez Gras and Carlos S{\'a}nchez Mayordomo and Roberta Santacesaria and Cibr{\'a}n Santamarina R{\'i}os and Marco Santimaria and Emanuele Santovetti and Gediminas Sarpis and Alessio Sarti and Celestina Satriano and Alessia Satta and Miroslav Saur and Darya Savrina and Luke George Scantlebury Smead and Stefan Schael and Margarete Schellenberg and Manuel Tobias Schiller and Heinrich Schindler and Michael Schmelling and Timon Schmelzer and Brian Paul Schmidt and O. Schneider and Andreas Schopper and Henry Schreiner and M. Schubiger and Sebastian Schulte and Marie-h{\'e}l{\`e}ne Schune and Rainer Schwemmer and Barbara Sciascia and A. Sciubba and Sara Sellam and Alexander Semennikov and Antonino Sergi and Nicola Serra and Justine Serrano and Lorenzo Sestini and Alex Seuthe and Paul Seyfert and D. Shangase and M. Shapkin and L. Shchutska and T. G. Shears and Lev I. Shekhtman and Vladimir Shevchenko and E. 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Vesterinen and Jo{\~a}o Barbosa and Daniel Evangelho Vieira and Maria Vieites Diaz and Harald Viemann and Xavier Vilas{\'i}s-Cardona and Arseniy Vitkovskiy and Vladimir Volkov and Achim Vollhardt and Dorothea vom Bruch and Alexey Vorobyev and Vitaly Vorobyev and Nikolai Voropaev and Roland Waldi and J. J. Walsh and J. C. Wang and M. Wang and Y. Wang and Z. R. Wang and David R. Ward and H. M. Wark and Nigel Keith Watson and David Websdale and Andreas Robert Weiden and Constantin Weisser and Benedict Donald C Westhenry and Dylan James White and Mark Whitehead and Dirk Wiedner and Guy Wilkinson and Michael Wilkinson and Ifan Williams and Mark I. Williams and M. R. J. Williams and Timothy Williams and Fergus Wilson and Wojciech Wiślicki and Mariusz Witek and Lukas Witola and Guy Wormser and Stephen Wotton and H. Y. Wu and Kenneth Wyllie and Z. Xiang and Dong Xiao and Y. G. Xie and H. Xing and Ao Xu and L. Xu and M Xu and Q. N. Xu and Z. Xu and Z. W. Yang and Y. Yao and Lauren Emma Yeomans and Hang Yin and J. Y. Yu and X. Q. Yuan and O. P. Yushchenko and Kristian Zarebski and Mikhail Zavertyaev and Milosz Zdybal and Ming Zeng and D. Zhang and L. Zhang and S. Q. Zhang and W. C. Zhang and Y. Zhang and Alexey Zhelezov and Y. Zheng and X. J. Zhou and Y. Zhou and X. L. Zhu and Valery Zhukov and Jennifer Brigitta Zonneveld and S. Zhou J. Zucchelli},
  journal={arXiv: High Energy Physics - Experiment},
  year={2020}
}
A search for the decay $K^0_{\mathrm{S}}\rightarrow\mu^{+}\mu^{-}$ is performed using proton-proton collision data, corresponding to an integrated luminosity of $5.6\,\text{fb}^{-1}$ and collected with the LHCb experiment during 2016, 2017 and 2018 at a center-of-mass energy of $13\,\mathrm{TeV}$. The observed signal yield is consistent with zero, yielding an upper limit of ${\cal B}(K^0_{\mathrm{S}}\rightarrow\mu^{+}\mu^{-}) < 2.2 \times 10^{-10}$ at 90% CL. The limit reduces to ${\cal B}(K^0_… 

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