6533b855fe1ef96bd12b1125

RESEARCH PRODUCT

Measurement of the Gerasimov-Drell-Hearn Integrand forH2from 200 to 800 MeV

J. C. McgeorgeP. PedroniA. PanzeriH. HolvoetSt. GoertzS. HasegawaR. Van De VyverDirk RyckboschP. GrabmayrMatthew LangMatthew LangB. LannoyL. Van HoorebekeJrm AnnandB. SeitzB. SeitzH. DutzJ. AhrensW. MeyerC. BradtkeTakahiro IwataT. RostomyanSaverio AltieriG. ReicherzO. JahnAndy ThomasA. BraghieriG. RosnerR. KondratievM. RostNaoaki HorikawaG. TamasR. BeckCh. RohlofI. PreobrajenskiF. ZapadtkaV. LisinN. D'hoseM. Martinez-fabregateP. JenneweinE. HeidH.-j. ArendsMartin SchumacherFrank KleinT. Pinelli

subject

PhysicsParticle physicsMeson production010308 nuclear & particles physicsNuclear TheoryGeneral Physics and AstronomyComputer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing)01 natural sciencesHelicityNuclear physics0103 physical sciencesSum rule in quantum mechanicsPhoton beamNuclear Experiment010306 general physicsEnergy (signal processing)

description

A measurement of the helicity dependence of the total inclusive photoabsorption cross section on the deuteron was carried out at MAMI (Mainz) in the energy range $200l{E}_{\ensuremath{\gamma}}l800\text{ }\text{ }\mathrm{MeV}$. The experiment used a $4\ensuremath{\pi}$ detection system, a circularly polarized tagged photon beam and a frozen-spin target which provided longitudinally polarized deuterons. The contribution to the Gerasimov-Drell-Hearn sum rule for the deuteron determined from the data is $407\ifmmode\pm\else\textpm\fi{}20(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}24(\mathrm{syst})\text{ }\text{ }\ensuremath{\mu}\mathrm{b}$ for $200l{E}_{\ensuremath{\gamma}}l800\text{ }\text{ }\mathrm{MeV}$.

https://doi.org/10.1103/physrevlett.97.202303