Analysis Status of E05115Chunhua ChenMay 09, 2012

Old status

FWHM~1.775MeV

FWHM~1.675MeV

I=20uA+35uAσ= 0.529MeV

σ= 0.529MeV

Problem:the optical description is not uniform on whole kinematical space o 12

ΛBgs resolution is worse compare to lambda and sigma;o Core excited states does not shown up in 12

ΛB;

First Test-increase the weight of 12

ΛBgs-momentum tune-

σ= 403keVmm=-11.41

HMFW=1.84MeV

HMFW=1.80MeV

First Try-increase the weight of

12ΛBgs

-angle tune-

σ= 387keVmm=-11.38

HMFW=1.708MeV

HMFW=1.672MeV

Tips: Get the balance between momentum and angle for CH2

target Still Core excited states do not show up

Second Try-Put first core excites status into Mathematical tuning data sets with low statistical weight （w_core<=0.5w_bgs）

HMFW=1.90MeV

HMFW=1.84MeV

σ= 377keVmm=-11.36

Still Core excited states do not show up

Third Try-Put first core excites status into Mathematical tuning data sets with higher statistical weight(w_core=2w_bgs)

σ= 489keVmm=-11.42

HMFW=1.820MeV

HMFW=1.793MeV

Tips: Core excited states show up 12

ΛBgs becomes wider

Preliminary status – 10

ΛBeSecond Try

Third Try

Preliminary status – 9

ΛLi

KEK-E3369LBe

Preliminary Result 7ΛHe

E01011 data

E. Hiyama, et al., PRC53 2078 (1996)

n

n

6He core3/2+&5/2+

The optics is still not uniformly mathematically

described on whole kinematical space; Continue to do the optical and kinematical

tune; Think about the cross section and other

physics Prepare the thesis;

To do

Old status Problems-the optical description is not uniform on

whole kinematical space : o 12

ΛBgs resolution is worse compare to lambda and sigma;o Core excited states does not shown up in 12

ΛB; First try Status Second try Status Problem To do

Outline