# Presentation: 682580

## Chargino and Neutralino Search

- Anadi Canepa (Purdue University)
- Oscar González (Purdue University)
- Mariopaolo Giordani (Universita’ di Udine)

-  Update on the scan of the parameter space

- Purdue Meeting, A.Canepa

## List of ISAJET Scans

- Parameters for mSUGRA: m**1⁄2 **** m****0 **** tan****β**** A****0 **** and sgn******
**m****1⁄2 **** vs m****0 **
**m****1⁄2 **** vs tan****β**** **
**m****1⁄2 **** vs A****0 **
**m****0 **** vs tan****β**** **
**m****0 **** vs A****0**
**tan****β**** vs A****0**
**for sgn******

- Purdue Meeting, A.Canepa

## Summary for a TRILEPTON signal 

**m****1⁄2 **** ****	****in [100;300] GeV**
**A****0                  ****in [0,200]**
**tan****β**** ****	****= 5**
**m****0 ****	****	****= 60 GeV**
**Best region:**
**m****1⁄2 **** ****	****[170,180] GeV**
**A****0                  ****[170,180] **

**m****0                 ****in [0,1000] GeV**
**tan****β**** ****	****in [0,20] **
**m****1⁄2****	****	****= 160 GeV**
** ****A****0 ****	****	****= 0**
**Best region:**
**m****0                 ****[140,150] GeV**
**tan****β****	****[10,12]**

**m****1⁄2 **** ****	****in [100;300] GeV**
**tan****β**** ****	****in [0,40] **
**m****0 ****	****	****= 60 GeV**
** ****A****0 ****	****	****= 0**
**Best region:**
**m****1⁄2 **** ****	****[170,180] GeV**
**tan****β****	**** ****[4,6] **

**m****1⁄2 **** ****	****in [100;300] GeV**
**m****0                 ****in [0,1000] GeV**
**tan****β**** ****	****= 10**
** ****A****0 ****	****	****= 0**
**Best region:**
**m****1⁄2 **** ****	****[160;200] GeV**
**m****0                 ****[80,100] GeV**

**m****0                 ****in [0,1000] GeV**
**A****0                  ****in [0,200]**
**tan****β**** ****	****= 5**
**m****1⁄2****	****	****= 160 GeV**
**Best region:**
**m****0                 ****[980,1000] GeV**
**A****0                 ****[all] **

**tan****β**** ****	****in [0,40] **
**A****0                  ****in [0,200]**
**m****0 ****	****	****= 60 GeV**
**m****1⁄2****	****	****= 160 GeV**
**Best region:**
**tan****β**** ****	**** ****[10,12] **
**A****0                    ****[0,20] **

- Purdue Meeting, A.Canepa

## Double Scan m0 m1⁄2

- Double Scan m0 m1⁄2

**Number of expected events**** ****for 500 pb****-1**

**Tan****β**** = 10**
**A****0**** = 0**
**Best region: **
**m****1⁄2****  [160;200] GeV**
**m****0****   [80,100] GeV**

- Purdue Meeting, A.Canepa

## Double Scan m1⁄2 tanβ

**Number of expected events**** ****for 500 pb****-1**

**m****0**** = 60 GeV**
** ****A****0**** = 0**
**Best region: **
**m****1⁄2****  [170,180] GeV tan****β**** [4,6] **

- Purdue Meeting, A.Canepa

## Double Scan m1⁄2 A0

**Number of expected events**** ****for 500 pb****-1**

**tan****β**** = 5 **
** ****m****0**** = 60 GeV**
**Best region: **
**m****1⁄2****  [170,180] GeV**
**A****0**** [170,180]**

- Purdue Meeting, A.Canepa

## Double Scan m0 tanβ

**Number of expected events**** ****for 500 pb****-1**

**m ****1⁄2**** = 160 GeV**
** ****A****0**** = 0**
**Best region: **
**m****o****  [140,150] GeV**
** ****tan****β**** [10,12] **

- Purdue Meeting, A.Canepa

## Double Scan m0 A0

**Number of expected events**** ****for 500 pb****-1**

**m ****1⁄2**** = 160 GeV**
** ****tan****β**** = 5 **

- Purdue Meeting, A.Canepa

## Double Scan A0 tanβ

**Number of expected events**** ****for 500 pb****-1**

**m ****1⁄2**** = 160 GeV**
** ****m****0**** = 60**
**Best region: **
**A****o****  [0,20]**
** ****tan****β**** [10,12]**

- Purdue Meeting, A.Canepa

- Best set of parameters:
-  m1⁄2  170 GeV
-  m0   80 GeV or [140,150] GeV
-  tanβ [10,12]
-  A0 [170,180]
- Generate the same sample by using PYTHIA
- Explore in more detail the region with the highest signal

- Purdue Meeting, A.Canepa