اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدSearch for structure in the $B_s^0pi^pm$ invariant mass spectrum
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The $B_s^0pi^pm$ invariant mass distribution is investigated in order to search for possible exotic meson states. The analysis is based on a data sample recorded with the LHCb detector corresponding to $3$ fb$^{-1}$ of $pp$ collision data at $sqrt{s} = 7$ and $8$ TeV. No significant excess is found, and upper limits are set on the production rate of the claimed $X(5568)$ state within the LHCb acceptance. Upper limits are also set as a function of the mass and width of a possible exotic meson decaying to the $B_s^0pi^pm$ final state. The same limits also apply to a possible exotic meson decaying through the chain $B_s^{*0}pi^pm$, $B_s^{*0} to B_s^0 gamma$ where the photon is excluded from the reconstructed decays.
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