[Clas_hadron] [EXTERNAL] Abstract Submission of the DNP meeting

[Volker Burkert]

Dear Utsav,

It would be good if you could add some sentence what you will be presenting, cross sections, photoproduction amplitudes, partial wave analysis, etc.?

Volker



On Jun 29, 2021, at 4:07 AM, Shrestha, Utsav <ushrestha at uconn.edu<mailto:ushrestha at uconn.edu>> wrote:

Dear all,

I wanted to circulate my abstract for the DNP meeting 2021 to the Hadron Spectroscopy Working Group at CLAS.  I have attached the abstract to this email. For a quick view, the abstract reads as follows:

Photoproduction of $\Lambda*$ Resonances Using the CLAS Detector
Much is known about the photoproduction of the hyperon resonances $\Lambda(1405)1/2^-$ and $\Lambda(1520)3/2^-$, but little is known about photoproduction to the higher-mass resonances $\Lambda(1670)1/2^-$ and $\Lambda(1690)3/2^-$.  Both pairs of resonances are spin-orbit partners and are rated as 4-star (well-known) by the Particle Data Group.  In the quark model, the $\Lambda(1405)$
and $\Lambda(1520)$ resonances are assigned to the SU(3) singlet, where the $\Lambda(1670)$ and $\Lambda(1690)$ are assigned to the octet. Using photoproduction data from the CLAS detector at Jefferson Lab, the $\Lambda(1520)$ has been studied using two exclusive channels, $\Sigma^+ \pi^-$ and $\Sigma^- \pi^+$, from the detected $K^+$, $\pi^+$, and $\pi^-$ particles. The higher mass resonances, $\Lambda(1670)$ and $\Lambda(1690)$ are studied for the first time using photoproduction.

Thank you,
Utsav.

<2021DNPSabs_utsav.pdf>_______________________________________________
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