# Presentation: 392112

## Nuclear weak responses for Hiro Ejiri Feb.27,2004、Pasadena

**T****2********=G****2n**** M****2n****(********)**
**T********=G******** M********(********rp)(<m********> +<RHC>)****2**
**0********              L=0,1,2,3,4,5,       E < 50 MeV**
**2********              L = 0,1.                 E < 20 MeV **
**M********are sensitive to ******** correlations, i.e. nuclear spin isospin **
**giant resonance and spin isospin polarizations**
**      ****G ********[********S**** Y****L****]****J ****with L=0~6 and E =0~50 MeV.**
**  ****Experimental way to calibrate nuclear matrix elements and/or to check nuclear structures and effective interactions**
**H.Ejiri, Phys. Rep. 338 (2000) 265.   H.Ejiri, Nucl. Phys. A 687 (2001) 350c**

## Nuclear Responses (M0) for exchange betweenn-n, d-d quarks in an isober, n .

**Single and double charge exchange reactions ****at RCNP**** **

## Weak probes/processes

******decays, limited to charged current responses for **
** ****ground states of daughter nuclei.**** **
****
******proe (********,e********), direct ways  but need intense ********beams(10****15****/sec) and large detectors(10 tons) because of ********~ 10****-41-42**** cm****2**
**SNS/ORLaND with 1 GeV p and J-PARC with 3 GeV p**
******probe  (************) captures for T****+**** responses up to 100 MeV.**
**  ****with very large cross sections  ( J. Suhonen)**
**e probe  by (e,********with********e- beam********of**** ********e   ****~10mA, N ~ 10g, T ~   0.I y,  ******** ~ 10****-40****cm****2**** Y ~ 10****4****, and  with e+ beam  ~********A   Y ~ 1.**

##   p + Hg   n +
 +  ee

** ********+ ******** ************************************e************e******_****__****_

**Souse   E GeV     N****p  ****  ****   ****N************    **** ****Detector**** ****SNS       1     ****  ****6 10****15****    **** ****7 10****14        ****ORLaND**** JHF       3    **** ****1.2  10****15****    3 10****14      ****(MOON)**

****** ****probe**

**********(********,e) cm****2 **** (10****-41****)****                      **
**                 ********e**** ****       ********x****-********e****      **
**      ****0+             0.7            8.9**
**      ****0-              0.02           0.60   **
**      ****1+            4.62          35.5**
**      ****1-             0.14           12.1    **
**      ****2+            0.04 ****   ****4.7**
**      ****2-             0.34           14.9**
**   ****3+****      ****0.03          3.78 **
**      ****3**-** ****                              1.0**
**      ****4+                              0.23**
**      ****4-                               0.79**
**      ****Total        5.84           80.5**
** **

**Responses of ****100****Mo  for SN-********H.Ejiri, J.Engel, N.Kudomi, PL B 2002  .**** **

## Nuclear Interaction probes by Chare exchange spin flip reactions

** ****Charge exchange spin flip**
**(p,n), (d,****2****He), (****3****He,t), (****7****Li.****7****Be). **** **
** ****Double c exchange ****( ****11****B, ****11****Li) at RCNP **
** ****E/A ~ 0.2 GeV with large V****ts,**** and small distortion,**
** ****preferential ******** excitation,**
** ****RCNP,MSU,and others. **
**Non-central interactions, distortions, multi step and others in hadron processes**

## Nuclear Responses for  solar and sn ’s

**Nuclear Responses for Neutrinos:**
**Charged Current Spin (********Y****l****)**
**Charge Exchange Spin-flip Reactions **
**H.Ejiri, Phys. Rep. 338 (2000) 265**** **

- 

******Y****1**