V. Khachatryan

collaborators

11 papers

hep-ex2025

Search for the $Y (2175)$ in the photoproduction cross section measurement of $I^^{3} p \to I ¨ I ¨ ^{+} I ¨ ^{-} p$ at GlueX

GlueX Collaboration

Based on 334 pb $^{- 1}$ of photoproduction data collected with the GlueX detector at Jefferson Lab, we have measured for the first time the cross section of the exclusive reaction $…

hep-ex2025

Measurement of the branching fraction of the decay $J / I ¨ \to p p ˉ I^\cdot$

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

A high precision measurement of the branching fraction of the decay $J / I ¨ \to p p ˉ I^\cdot$ is performed using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events recorded by the {BESIII} d…

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…

math-ph2025

Vanishing cycles and analysis of singularities of Feynman diagrams

Stanislav Srednyak, Vladimir Khachatryan

In this work, we analyze vanishing cycles of Feynman loop integrals by means of the Mayer-Vietoris spectral sequence. A complete classification of possible vanishing geometries are…

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

Search for the decay $I ¨ _{c 1} (3872) \to I ¨ ^{+} I ¨ ^{-} I ¨ _{c 1}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

Using a data sample corresponding to an integrated luminosity of 10.9 fb $^{- 1}$ collected at center-of-mass energies from 4.16 to 4.34 GeV with the BESIII detector, we search for t…

Search for the Y(2175) in the photoproduction cross section measurement of I^3p→I¨I¨+I¨−p at GlueX

Measurement of the branching fraction of the decay J/I¨→ppˉ​I^⋅

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

Vanishing cycles and analysis of singularities of Feynman diagrams

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

Search for the decay I¨c1​(3872)→I¨+I¨−I¨c1​

Search for the $Y (2175)$ in the photoproduction cross section measurement of $I^^{3} p \to I ¨ I ¨ ^{+} I ¨ ^{-} p$ at GlueX

Measurement of the branching fraction of the decay $J / I ¨ \to p p ˉ I^\cdot$

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

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

Search for the decay $I ¨ _{c 1} (3872) \to I ¨ ^{+} I ¨ ^{-} I ¨ _{c 1}$