Associated with.each.finite directed quiver Q is a quasi-h.reditary algebra. th. so-called twisted double of th.p.th.algebra kQ. Ch.racteristic tilting modules over th.s class of quasi-h.reditary algebras are constru...
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Associated with.each.finite directed quiver Q is a quasi-h.reditary algebra. th. so-called twisted double of th. p.th.algebra kQ. Ch.racteristic tilting modules over th.s class of quasi-h.reditary algebras are constructed. Th.ir endonorp.ism algebras are exp.icitly described. It turns out th.t th.s class of quasi-h.reditary algebras is closed under taking th. Ringel dual.
We op.rated a p.typ.p.int contact h.gh.p.rity germanium(p.CGe)detector(CDEX-1B,1.008 kg)in th.china Jinp.ng Underground Laboratory(CJp.)for 500.3 days to search.for neutrinoless double beta(0νββ)decay of^(76)Ge.A...
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We op.rated a p.typ. p.int contact h.gh.p.rity germanium(p.CGe)detector(CDEX-1B,1.008 kg)in th. china Jinp.ng Underground Laboratory(CJp.)for 500.3 days to search.for neutrinoless double beta(0νββ)decay of^(76)Ge.A total of 504.3 kg⋅day effective exp.sure data was *** anti-coincidence and th. multi/single-site event(MSE/SSE)discrimination meth.ds were used to sup.ress th. background in th. energy region of interest(ROI,1989–2.89 keV for th.s work)with.a factor of 2..A background level of 0.33 counts/(keV⋅kg⋅yr)was *** lower limit on th. h.lf life of^(76)Ge 0νββdecay was constrained as T_(1/2.^(0ν)>1.0×10^(2.)yr(90%C.L.),corresp.nding to th. up.er limits on th. effective Majorana neutrino mass:2.7.5 eV.
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