Search for a Structure in the $B^0_s \pi^\pm$ Invariant Mass Spectrum with the ATLAS Experiment

• Published in: Physical review letters 2018-02, Vol.120 (20)
• Main Authors: Aaboud, M., Aad, Georges, Abbott, Brad, Abdinov, Ovsat, Abeloos, Baptiste, Abidi, Syed Haider, Abouzeid, Ossama, Abraham, Nicola, Abramowicz, Halina, Abreu, Henso, Abulaiti, Yiming, Acharya, Bobby Samir, Adachi, Shunsuke, Adamczyk, Leszek, Adelman, Jahred, Adersberger, Michael, Adye, Tim, Affolder, Tony, Afik, Yoav, Agheorghiesei, Catalin, Aguilar-Saavedra, Juan Antonio, Ahlen, Steven, Ahmadov, Faig, Aielli, Giulio, Akatsuka, Shunichi, Akerstedt, Henrik, Åkesson, Torsten Paul Ake, Akilli, Ece, Akimov, Andrei, Alberghi, Gian Luigi, Albert, Justin, Albicocco, Pietro, Alconada Verzini, Maria Josefina, Alderweireldt, Sara, Aleksa, Martin, Aleksandrov, Igor, Alexa, Calin, Alexander, Gideon, Alexopoulos, Theodoros, Alhroob, Muhammad, Ali, Babar, Aliev, Malik, Alimonti, Gianluca, Alison, John, Alkire, Steven Patrick, Allbrooke, Benedict, Allen, Benjamin William, Allport, Phillip, Aloisio, Alberto, Alonso, Alejandro, Alonso, Francisco, Alpigiani, Cristiano, Alshehri, Azzah Aziz, Alstaty, Mahmoud, Alvarez Gonzalez, Barbara, Álvarez Piqueras, Damián, Alviggi, Mariagrazia, Amadio, Brian Thomas, Amaral Coutinho, Yara, Amelung, Christoph, Amidei, Dante, Amor dos Santos, Susana Patricia, Amoroso, Simone, Anastopoulos, Christos, Ancu, Lucian Stefan, Andari, Nansi, Andeen, Timothy, Anders, Christoph Falk, Anders, John Kenneth, Anderson, Kelby, Andreazza, Attilio, Andrei, George Victor, Angelidakis, Stylianos, Angelozzi, Ivan, Angerami, Aaron, Anisenkov, Alexey, Anjos, Nuno, Annovi, Alberto, Antel, Claire, Antonelli, Mario, Antonov, Alexey, Antrim, Daniel Joseph, Anulli, Fabio, Aoki, Masato, Aperio Bella, Ludovica, Arabidze, Giorgi, Arai, Yasuo, Araque, Juan Pedro, Araujo Ferraz, Victor, Arce, Ayana, Ardell, Rose Elisabeth, Arduh, Francisco Anuar, Arguin, Jean-Francois, Argyropoulos, Spyridon, Arik, Metin, Armbruster, Aaron James, Armitage, Lewis James, Arnaez, Olivier, Arnold, Hannah, Arratia, Miguel
• Format: Article
• Language: English
• Subjects: High Energy Physics - Experiment; Physics
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PhysRevLett.120.202007

A search for the narrow structure, X(5568), reported by the D0 Collaboration in the decay sequence X→Bs0π±, Bs0→J/ψϕ, is presented. The analysis is based on a data sample recorded with the ATLAS detector at the LHC corresponding to 4.9  fb-1 of pp collisions at 7 TeV and 19.5  fb-1 at 8 TeV. No significant signal was found. Upper limits on the number of signal events, with properties corresponding to those reported by D0, and on the X production rate relative to Bs0 mesons, ρX, were determined at 95% confidence level. The results are N(X)