S. Marcello

activity

20242026

collaborators

11 papers

hep-ex2026

Search for the $B^{0} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{-}$ decay

Belle, Belle II Collaborations, : +432

We present the first search for $B^{0} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{-}$ decays. We look for signal decays in $B^{0} B ˉ^{0}$ events produced in asymmetric-energy electron-positron collisions.…

hep-ex2026

Search for axion-like particles decaying to two photons at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +450

Axion-like particles (ALPs) are predicted in many extensions of the Standard Model and provide a well-motivated portal between visible and hidden sectors through their coupling to…

hep-ex2026

Improved measurement of Born cross sections for $I ¨ _{b J} I ¨ $ and $I ¨ _{b J} (I ¨ ^{+} I ¨ ^{-} I ¨ ^{0})_{non - I ¨ }$ ( $J$ = 0, 1, 2) at Belle and Belle II

Belle, Belle II Collaborations, : +424

We study the processes $I ¨ _{b J} I ¨ $ and $I ¨ _{b J} (I ¨ ^{+} I ¨ ^{-} I ¨ ^{0})_{non - I ¨ }$ ( $J$ = 0, 1, 2) at center-of-mass energies $s$ from 10.73 to 11.02 GeV using a $142.5\,\mathr…

hep-ex2026

Observation of $I ¨ (3686) \to I^^{3} I^\cdot (1405)$ via $I^\cdot (1405) \to f_{0} (980) I ¨ ^{0}$

M. Ablikim, M. N. Achasov, P. Adlarson +694

The decay $I ¨ (3686) \to I^^{3} I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ is studied using a sample of $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector. The decay $Î·(1405)\toÏ^+Ï^-Ï…

hep-ex2026

Search for a dark baryon in the $I^^{-} \to I ¨ ^{-} + invisible$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

A search for a dark baryon is performed for the first time in the two-body decay $I^^{-} \to I ¨ ^{-} + invisible$ using $(10.087 \pm 0.044) \times 1 0^{9}$ $J / I ¨ $ events collected…

hep-ex2026

Measurements of the absolute branching fractions of the $I^_{c}^{+}$ hadronic decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +722

Based on 4.5 fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at center-of-mass energies between 4599.53 MeV and 4698.82 MeV with the BESIII detector, the absolute branching fraction…

Search for the B0→KS0​I¨+I¨− decay

Search for axion-like particles decaying to two photons at Belle II

Improved measurement of Born cross sections for I¨bJ​I¨ and I¨bJ​(I¨+I¨−I¨0)non−I¨​ (J = 0, 1, 2) at Belle and Belle II

Observation of I¨(3686)→I^3I^⋅(1405) via I^⋅(1405)→f0​(980)I¨0

Search for a dark baryon in the I^−→I¨−+invisible decay

Measurements of the absolute branching fractions of the I^c+​ hadronic decays

Search for the $B^{0} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{-}$ decay

Improved measurement of Born cross sections for $I ¨ _{b J} I ¨ $ and $I ¨ _{b J} (I ¨ ^{+} I ¨ ^{-} I ¨ ^{0})_{non - I ¨ }$ ( $J$ = 0, 1, 2) at Belle and Belle II

Observation of $I ¨ (3686) \to I^^{3} I^\cdot (1405)$ via $I^\cdot (1405) \to f_{0} (980) I ¨ ^{0}$

Search for a dark baryon in the $I^^{-} \to I ¨ ^{-} + invisible$ decay

Measurements of the absolute branching fractions of the $I^_{c}^{+}$ hadronic decays