J. Gutierrez

collaborators

5 papers

hep-ex2026

First Measurement of the Relative Phase between Proton Psionic Form Factors

BESIII Collaboration, M. Ablikim, M. N. Achasov +754

The relative phase between the time-like form factors of the proton is a crucial observable for a complete understanding of its internal structure, yet it has remained unmeasured d…

hep-ex2026

Observation of the $X (2370)$ in $J / I ¨ \to I^^{3} K_{S}^{0} K_{S}^{0} I ¨ ^{0}$ and $J / I ¨ \to I^^{3} I ¨ ^{0} I ¨ ^{0} I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +767

Based on $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector, the $J / I ¨ \to I^^{3} K_{S}^{0} K_{S}^{0} I ¨ ^{0}$ and $J / I ¨ \to I^^{3} I ¨ ^{0} I ¨ ^{0} I^\cdot$ processe…

hep-ex2026

Observation of the Exotic State $I ¨ _{1} (1600)$ in $I ¨ (2 S) \to I^^{3} I ¨ _{c 1}, I ¨ _{c 1} \to I ¨ ^{+} I ¨ ^{-} I^\cdot^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +750

A partial wave analysis of the process $I ¨ (2 S) \to I^^{3} I ¨ _{c 1}, I ¨ _{c 1} \to I ¨ ^{+} I ¨ ^{-} I^\cdot^{'}$ is performed using $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (2 S)$ events collecte…

hep-ex2026

First Observation of \boldmath{ $D^{+} \to a_{0} (980) I ¨ $ and $D^{+} \to a_{0} (980)^{+} f_{0} (500)$ } in \boldmath{ $D^{+} \to I ¨ ^{+} I ¨ ^{+} I ¨ ^{-} I^\cdot$ and $D^{+} \to I ¨ ^{+} I ¨ ^{0} I ¨ ^{0} I^\cdot$ } Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +756

We perform the first amplitude analysis of the singly Cabibbo-suppressed decays $D^{+} \to I ¨ ^{+} I ¨ ^{+ (0)} I ¨ ^{- (0)} I^\cdot$ , using $e^{+} e^{-}$ collision data collected with the BESIII detec…

hep-ex2026

Measurement of the branching fractions of $I ¨ _{c J} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0} I ¨ ^{0}$ via $I ¨ (3686) \to I^^{3} I ¨ _{c J}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +762

Using $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector operating at BEPCII, the branching fractions of $I ¨ _{c J} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0} I ¨ ^{0}$ ( $J = 0, 1, 2$ ) a…

First Measurement of the Relative Phase between Proton Psionic Form Factors

Observation of the X(2370) in J/I¨→I^3KS0​KS0​I¨0 and J/I¨→I^3I¨0I¨0I^⋅

Observation of the Exotic State I¨1​(1600) in I¨(2S)→I^3I¨c1​,I¨c1​→I¨+I¨−I^⋅′

First Observation of \boldmath{D+→a0​(980)I¨ and D+→a0​(980)+f0​(500)} in \boldmath{D+→I¨+I¨+I¨−I^⋅ and D+→I¨+I¨0I¨0I^⋅} Decays

Measurement of the branching fractions of I¨cJ​→I¨+I¨−I¨0I¨0 via I¨(3686)→I^3I¨cJ​

Observation of the $X (2370)$ in $J / I ¨ \to I^^{3} K_{S}^{0} K_{S}^{0} I ¨ ^{0}$ and $J / I ¨ \to I^^{3} I ¨ ^{0} I ¨ ^{0} I^\cdot$

Observation of the Exotic State $I ¨ _{1} (1600)$ in $I ¨ (2 S) \to I^^{3} I ¨ _{c 1}, I ¨ _{c 1} \to I ¨ ^{+} I ¨ ^{-} I^\cdot^{'}$

First Observation of \boldmath{ $D^{+} \to a_{0} (980) I ¨ $ and $D^{+} \to a_{0} (980)^{+} f_{0} (500)$ } in \boldmath{ $D^{+} \to I ¨ ^{+} I ¨ ^{+} I ¨ ^{-} I^\cdot$ and $D^{+} \to I ¨ ^{+} I ¨ ^{0} I ¨ ^{0} I^\cdot$ } Decays

Measurement of the branching fractions of $I ¨ _{c J} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0} I ¨ ^{0}$ via $I ¨ (3686) \to I^^{3} I ¨ _{c J}$