Measurement of e plus e- ?: ?p plus p - cross sections at center-of-mass energies from 2.00 to 3.08 GeV

Measurement of e plus e- ? : ?p plus p - cross sections at center-of-mass energies from 2.00 to 3.08 GeV

Ablikim, M. (författare): Inst High Energy Phys, Beijing 100049, Peoples R China

Kupsc, Andrzej (författare): Uppsala universitet,Kärnfysik,Natl Ctr Nucl Res, PL-02093 Warsaw, Poland

Zu, J. (författare): State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China;State Key Lab Particle Detect & Elect, Hefei 230026, Peoples R China

(creator_code:org_t)

American Physical Society, 2023
2023
Engelska.
Ingår i: Physical Review D. - : American Physical Society. - 2470-0010 .- 2470-0029. ; 108:3

Relaterad länk:: https://doi.org/10.1...; visa fler...; https://uu.diva-port... (primary) (Raw object); https://urn.kb.se/re...; https://doi.org/10.1...; visa färre...

Abstract Ämnesord

Stäng

Using data corresponding to an integrated luminosity of 651 pb-1 accumulated at 22 center-of-mass energies from 2.00 to 3.08 GeV by the BESIII experiment, the process e+e- & RARR; 0ic+ic- is studied. The cross sections for e+e- & RARR; 0ic+ic- are consistent with previous results, but with improved precision. To measure the mass and width of the structure observed in the cross section line shape, a combine fit is performed after enhancing the contribution from 0f0(980). The fit reveals a structure with the mass of M = 2178 +20 +5 MeV=c2 and the width of & UGamma; = 140 +36 +16 MeV, where the first uncertainties are statistical and the second ones are systematic.

Av författaren/redakt...: Ablikim, M.; Adlarson, Patrik; Johansson, Tord; Kupsc, Andrzej; Schönning, Karin ...; Thorén, Viktor; visa fler...; Wolke, Magnus; Zu, J.; visa färre...

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