Search for the X(5568) state decaying into ${\mathrm{B}}_{\mathrm{s}}^0{\pi }^{\pm }$ in proton-proton collisions at $\sqrt{s}=$ 8 TeV

Abstract

A search for resonance-like structures in the ${\mathrm{B}}_{\mathrm{s}}^0{\pi }^{\pm }$ invariant mass spectrum is performed using proton-proton collision data collected by the CMS experiment at the LHC at $\sqrt{s}=$ 8 TeV, corresponding to an integrated luminosity of 19.7 fb${}^{-1}$. The ${\mathrm{B}}_{\mathrm{s}}^0$ mesons are reconstructed in the decay chain ${\mathrm{B}}_{\mathrm{s}}^0\to \mathrm{J}/\psi \varphi$, with $\mathrm{J}/\psi \to {\mu }^{+}{\mu }^{-}$ and $\varphi \to {\mathrm{K}}^{+}{\mathrm{K}}^{-}$. The ${\mathrm{B}}_{\mathrm{s}}^0{\pi }^{\pm }$ invariant mass distribution shows no statistically significant peaks for different selection requirements on the reconstructed ${\mathrm{B}}_{\mathrm{s}}^0$ and ${\pi }^{\pm }$ candidates. Upper limits are set on the relative production rates of the X(5568) and ${\mathrm{B}}_{\mathrm{s}}^0$ states times the branching fraction of the decay $\mathrm{X}(5568{)}^{\pm }\to {\mathrm{B}}_{\mathrm{s}}^0{\pi }^{\pm }$. In addition, upper limits are obtained as a function of the mass and the natural width of possible exotic states decaying into ${\mathrm{B}}_{\mathrm{s}}^0{\pi }^{\pm }$.

Replaced with the published version. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-16-002/ (CMS Public Pages)

References in corpus (8)

• PYTHIA 6.4 Physics and Manual
• The CMS trigger system
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
• Search for structure in the $B_s^0{\pi }^{\pm }$ invariant mass spectrum
• A search for the exotic meson $X(5568)$ with the Collider Detector at Fermilab
• Search for a Structure in the $B_s^0{\pi }^{\pm }$ Invariant Mass Spectrum with the ATLAS Experiment
• Study of the $X^{\pm }(5568)$ state with semileptonic decays of the $B_s^0$ meson

Cited by in corpus (45)

• The $XYZ$ states: experimental and theoretical status and perspectives
• An updated review of the new hadron states
• Threshold cusps and triangle singularities in hadronic reactions
• Observation of two excited B${}_{\mathrm{c}}^{+}$ states and measurement of the B${}_{\mathrm{c}}^{+}$(2S) mass in pp collisions at $\sqrt{s}=$ 13 TeV
• A lattice investigation of exotic tetraquark channels
• First observation of a doubly charged tetraquark and its neutral partner
• $X_0(2900)$ and $X_1(2900)$: hadronic molecules or compact tetraquarks
• Open-charm tetraquark $X_c$ and open-bottom tetraquark $X_b$
• Observation of a new excited beauty strange baryon decaying to ${\Xi }_{\mathrm{b}}^{-}{\pi }^{+}{\pi }^{-}$
• Open charm and bottom tetraquarks in an extended relativized quark model
• Systematic studies of charmonium-, bottomonium-, and $B_c$-like tetraquark states
• Spectrum and rearrangement decays of tetraquark states with four different flavors
• Amplitude analysis of $B^0\to {\overline{D}}^0{D}_s^{+}{\pi }^{-}$ and $B^{+}\to D^{-}{D}_s^{+}{\pi }^{+}$ decays
• Mass spectrum and strong decays of tetraquark $\bar{c}\bar{s}qq$ states
• Heavy-strange meson molecules and possible candidates $D_{s0}^{\ast }(2317)$, $D_{s1}(2460)$, and $X_0(2900)$
• Study of excited ${\Lambda }_{\mathrm{b}}^0$ states decaying to ${\Lambda }_{\mathrm{b}}^0{\pi }^{+}{\pi }^{-}$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for a Structure in the $B_s^0{\pi }^{\pm }$ Invariant Mass Spectrum with the ATLAS Experiment
• A search for the exotic meson $X(5568)$ with the Collider Detector at Fermilab
• Kinematical Cusp and Resonance Interpretations of the $X(2900)$
• Molecular picture for $X_0(2900)$ and $X_1(2900)$
• Exotic triple-charm deuteron-like hexaquarks
• Discriminating among interpretations for the $X(2900)$ states
• Tetraquarks with open charm favor
• Study on the strong decays of $\varphi (2170)$ and a grand expectation for the future charm-tau factory
• Mass spectra and decays of open-heavy tetraquark states
• The decays of the fully open flavor state $T_{c\bar{s}0}^0$ in a $D^{\ast }{K}^{\ast }$ molecule scenario
• Studies of B${}_{s2}^{\ast }(5840{)}^0$ and B${}_{s1}(5830{)}^0$ mesons including the observation of the B${}_{s2}^{\ast }(5840{)}^0\to$ B${}^0$K${}_{\mathrm{S}}^0$ decay in proton-proton collisions at $\sqrt{s}=$ 8 TeV
• searches for ud\bar{s}\bar{b} in the chiral quark model
• Are there narrow flavor-exotic tetraquarks in large-$N_c$ QCD?
• Weak Decays of Stable Open-bottom Tetraquark by SU(3) Symmetry Analysis
• Weak Decays of Doubly-Heavy Tetraquarks $b\bar{c}q\bar{q}$
• New $X_{0,1}(2900)$-like exotic states in $b$-baryon decays
• Observation of the B${}_{\mathrm{s}}^0$ $\to$ X(3872)$\varphi$ decay
• Exploring the mass spectrum and the electromagnetic properties of the possible ${\Xi }_{cc}{K}^{(\ast )}$ and ${\Xi }_{cc}{\bar{K}}^{(\ast )}$ molecules
• In the Pursuit of $X(5568)$ and its Charmed Partner
• Perspectives and Outlook from HEP Window on the Universe
• How can $X^{\pm }(5568)$ escape detection?
• Mass Spectrum of Exotic X(5568) State via Artificial Neural Network
• Studying the bound state of the $B\bar{K}$ system in the Bethe-Salpeter formalism
• Observation of B${}^0$ $\to$ $\psi$(2S)K${}_{\mathrm{S}}^0{\pi }^{+}{\pi }^{-}$ and B${}_{\mathrm{S}}^0$ $\to$ $\psi$(2S)K${}_{\mathrm{S}}^0$ decays
• $B_c$ to $A$ Transition Form Factors and Semileptonic Decays in Self-consistent Covariant Light-front Approach
• Traps in hadron spectroscopy: Thresholds, triangle singularities, etc
• A coupled-channel perspective analysis on bottom-strange molecular pentaquarks
• Five-flavor molecular pentaquarks in the ${\Xi }_b^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{(\prime ,\ast )}{B}^{(\ast )}$ systems
• Chiral excitations of open-beauty systems