Studies of the X(3872) at Belle II
DOI:
https://doi.org/10.31349/SuplRevMexFis.3.0308043Keywords:
charmonium, X(3872), Belle IIAbstract
The X(3872) is one of the most puzzling resonances ever observed. First seen by the Belle Collaboration in 2003, it solicited the effort of a hundred of experimental physicists and dozens of theorists, who nowadays are trying yet to shed light on the nature of this peculiar resonant state. It was seen in several decay modes and different production mechanisms, and confirmed by several experiments, so it is well established, and recently is addressed as the the χc1 (3872). Here we report about a re-discovery of the X(3872) with early Belle II data, and discuss plans for future measurements once the full integrated planned luminosity will be achieved by Belle II.
References
N. Brambilla et al, CERN-2005-005, arXiv : hep−ph/0412158.
S. K. Choi et al, Phys. Rev. Lett. 91 (2003) 262001.
S. K. Choi et al, Phys. Rev. D 84 (2011) 052004.
D. Acosta et al, Phys. Rev. Lett. 93 (2004) 072001.
B. Aubert et al, Phys. Rev. D 71 (2005) 071103.
B. Aubert et al, Phys. Rev. D 73 (2006) 011101.
R. Aaij et al, JHEP 08 (2020) 123.
R. Aaij et al, Phys. Rev. D 102 (2020) 9.
V. M. Abazov et al, Phys. Rev. Lett. 93 (2004) 162002.
B. Aubert et al, Phys. Rev. D 77 (2008) 111101.
T. Aaltonen et al, Phys. Rev. Lett. 103 (2009) 152001.
R. Aaij et al, Eur. Phys. J.C 72 (2012) 1972.
M. Abiklim et al, Phys. Rev. Lett. 112 (2014) 092001.
R. Aaij et al, JHEP 08 (2020) 123.
G. Goohkroo et al, Phys. Rev. Lett. 97 (2006) 162002.
B. Aubert et al, Phys. Rev. D 77 (2008) 011102.
T. Aushev et al, Phys. Rev. D 81 (2010) 031103.
M. Aghasyan et al, Phys. Lett. B 783 (2018) 334-340.
M. Abiklim et al, Phys. Rev. Lett. 122 (2019) 23 232002.
P. del Almo Sanchez et al, Phys. Rev. D 82 (2010) 011101.
R. Aaij et al, Phys. Rev. Lett. 110 (2013) 222001.
R. Aaij et al, Phys. Rev. D 102 (2020) 092005.
P. Artoisenet and E. Braaten, Phys. Rev. D 81 (2010) 114018.
C. Bignamini et al, Phys. Rev. Lett. 103 162001.
, The CMS Coll., JHEP 04 (2013) 154.
The CMS Coll., arXiv : hep − ex/2005.04764.
A. Esposito et al, Eur. Phys. J. C 81 (2021) 669.
R. Aaij et al, PRL 126 (2021) 092001.
E. Braaten et al, Phys. Rev. D 103 (2021) 071901.
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Copyright (c) 2022 Elisabetta Prencipe (Author)
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