Jun 5 – 9, 2023
Genova, Italy
Europe/Rome timezone

Studies of open-double-charm exotic states at LHCb

Jun 8, 2023, 2:00 PM
DAD - Room 4H (Genova, Italy)

DAD - Room 4H

Genova, Italy

Invited Exotic hadrons and candidates Exotic hadrons and candidates


Mindaugas Sarpis


With LHC Run2 data becoming available, a plethora of new states was discovered at LHCb. Among those, are the open
charm exotic states, namely, tetraquarks with quark content of ($c\bar{c}qq$) and pentaquarks with quark
content ($c\bar{c}qqq$). More recently, in 2021 an open-double-charm tetraquark state, named, $T_{cc}{}^+$ was discovered,
with a quark content of ($c\bar{u}c\bar{d}$). This is the longest-lived exotic matter particle ever discovered.
Since the nature of tetraquarks states is not fully understood, observation and discovery of new hadrons serve
as an excellent probe into the production mechanism and interaction properties of resonances decaying via the
strong interaction. A tetraquark state having two heavy quarks as a constituent is even more exotic. Such discovery
paves the way to studying a new family of tetraquarks whereby existing theoretical models could be put to the test
or previously unreachable effects could be observed.

Primary authors

Keri Vos (Siegen University) Mindaugas Sarpis

Presentation materials