B. Kopf

collaborators

6 papers

hep-ex2025

Study of the light scalar $a_{0} (980)$ through the decay $D^{0} \to a_{0} (980)^{-} e^{+} I^½_{e}$ with $a_{0} (980)^{-} \to I^\cdot I ¨ ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +654

Using 7.93 $f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of 3.773 $GeV$ with the BESIII detector, we present an analysis of the decay $D^{0}…

hep-ex2025

Precise measurement of the form factors in $D^{0} \to K^{} (892)^{-} I^¼^{+} I^½_{I^} ¼$ and test of lepton universality with $D^{0} \to K^{} (892)^{-} ℓ^{+} I^½_{ℓ}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

We report a study of the semileptonic decay $D^{0} \to K ˉ^{0} I ¨ ^{-} I^¼^{+} I^½_{I^} ¼$ based on a sample of $7.9 fb^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at a center…

hep-ex2025

Cross section measurement of $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ and search for $e^{+} e^{-} \to I^\cdot X ~ (3872)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

The energy-dependent cross section for $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ is measured at eighteen center of mass energies from 4.288 GeV to 4.951 GeV using the BESIII detector. Using the same da…

hep-ex2025

Measurement of Born cross section of $e^{+} e^{-} \to I^£^{0} I^ˉ £^{0}$ at $s = 3.50 - 4.95$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +654

Using $e^{+} e^{-}$ collision data collected with the BESIII detector at the BEPCII collider at thirty-two center-of-mass energies from 3.50 to 4.95 GeV, corresponding to an integrated…

hep-ex2025

Search for the $e^{+} e^{-} \to I ¨ I ¨ _{c 1} (3872)$ process at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

Based on 368.5 pb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at center-of-mass energies 4.914 and 4.946 GeV by the BESIII detector, the $e^{+} e^{-} \to I ¨ I ¨ _{c 1} (3872)$ process is sea…

hep-ex2025

Measurements of the branching fractions of semileptonic $D_{s}^{+}$ decays via $e^{+} e^{-} \to D_{s}^{+} D_{s}^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

We measure the absolute branching fractions of semileptonic $D_{s}^{+}$ decays via the $e^{+} e^{-} \to D_{s}^{*+} D_{s}^{*-}$ process using $e^{+} e^{-}$ collision data corresponding to an integrated…

Study of the light scalar a0​(980) through the decay D0→a0​(980)−e+I^½e​ with a0​(980)−→I^⋅I¨−

Precise measurement of the form factors in D0→K∗(892)−I^¼+I^½I^​¼ and test of lepton universality with D0→K∗(892)−ℓ+I^½ℓ​ decays

Cross section measurement of e+e−→I^⋅I¨(2S) and search for e+e−→I^⋅X~(3872)

Measurement of Born cross section of e+e−→I^£0I^ˉ£0 at s​=3.50−4.95 GeV

Search for the e+e−→I¨I¨c1​(3872) process at BESIII

Measurements of the branching fractions of semileptonic Ds+​ decays via e+e−→Ds∗+​Ds∗−​

Study of the light scalar $a_{0} (980)$ through the decay $D^{0} \to a_{0} (980)^{-} e^{+} I^½_{e}$ with $a_{0} (980)^{-} \to I^\cdot I ¨ ^{-}$

Precise measurement of the form factors in $D^{0} \to K^{} (892)^{-} I^¼^{+} I^½_{I^} ¼$ and test of lepton universality with $D^{0} \to K^{} (892)^{-} ℓ^{+} I^½_{ℓ}$ decays

Cross section measurement of $e^{+} e^{-} \to I^\cdot I ¨ (2 S)$ and search for $e^{+} e^{-} \to I^\cdot X ~ (3872)$

Measurement of Born cross section of $e^{+} e^{-} \to I^£^{0} I^ˉ £^{0}$ at $s = 3.50 - 4.95$ GeV

Search for the $e^{+} e^{-} \to I ¨ I ¨ _{c 1} (3872)$ process at BESIII

Measurements of the branching fractions of semileptonic $D_{s}^{+}$ decays via $e^{+} e^{-} \to D_{s}^{+} D_{s}^{-}$