Full name: Nguyen Duc Vinh 2.. Place of birth: Thai Nguyen 5.. Major: Theoretical Physics and Mathematical Physics 9.. Pham Thuc Tuyen - Physical Sciences - University of Natural Science
Trang 1INFORMATION ON MASTER’THESIS
1 Full name: Nguyen Duc Vinh 2 Sex: Male
3 Date of birth: 07.02.1978 4 Place of birth: Thai Nguyen
5 Decision to recognize students of :2714QĐ-CTSV on May 18/12/2008
6 The changes in the training process: No
7 Title of dissertation:
"To the pair Squark Susy-QCD in e + e - processes with complex parameters,"
8 Major: Theoretical Physics and Mathematical Physics 9 Code: 60.44.01
10 Scientific staff guide:
TS Pham Thuc Tuyen - Physical Sciences - University of Natural Sciences
11 Summary results of the thesis:
Interaction Lagrangian and Feynman rules in the MSSM
To obtain the mass spectrum of particles in a physical theory we have carried out standard procedures symmetry breaking with the average value of the Higgs vacuum I will choose the vacuum average of the two Higgs multi-line as follows:
to satisfy the equation : 1 1 2
2
0
, 0
1, 2
to satisfy the equation
1
2
2
2
2
2
8sin cos
8sin cos
e
m
e
m
Charge eof the particles related to the coefficients relatedg1,2 through a parameter
called the Weinberg angle e g1cos g2sin
Lagrangian interaction between the quark and the gauge field photon ( ), wion, Zion and gluon (g):
Trang 2
W
W
cos
cos
sin
2
a a
g
g
g
Interaction between the super-partner of the quark (scalar quark) with the standard They are:
- Squark-squark-photon
*
*
iee A R R R R q q iee A q q
Squark-squark-Z 0
L Z C q q C q q c Z q q
- Squark-squark-W
L W t b W b t R R W t b R R W b t
- Squark-squark-gluon
L ig T G q q q q ig T G q q
The interaction between the quark with the five Higgs field in:
L s h qqs H qqs A q qH t s P s P bH b s P s P t
Interaction between the squark and Higgs boson can be written in general as
follows: *, * ˆ L *
R
q
q
Trang 3Quark-squark-chargino
b
gb V P Y U P t gb Y V P t
g U P Y V P tb g Y V P tb
g V P Y U P bt g Y V P bt
gt l P k P
2
b gt Y V P b
gb V P Y U P t gb Y V P t
g U P Y V P tb g Y V P tb
g V P Y U P bt g Y V P bt
Quark-squark-neutralino
0
gq a P b P q g a P b P qq
- Quark-squark-gluino
*
2
2
L g T q P g q q P g q g P q q g P q q
g T q R P R P g q g R P R P q q
- Gluon-gluino-gluino
2
s
ig
L f G g g
Squark-squark-gauge boson-gauge boson
2
2
W 2
2
W 2
* 2
W
cos
cos
cos
L e e A A q q q q e e A A q q
g
L Z Z C q q C q q
g
Z Z C R R C R R q q
g
z Z Z q q
Trang 4
Four squark interactions
1
2
1
2
a a
a a
s mn rs ij kl jm in kr ls
g T T S S q q q q
KEY ADDITION FOR CARRYING SQUARK QCD WITH COMPLEX PARAMETER
The mix of boxer's arm moves and squark Then, the partial width of decay q i( ,
q t b) into final state fermions are
0
1
0
3
, , 16
4 Re
i
q
m
and
0
1
0
3
, , 16
4 Re
i
q
m
Partial width of decay q i(qi ti, bi) of the final state boson (gauge and Higgs) would be:
Trang 5
2
2
3 2
21
3 2
3
1 2
1
, , W
16 , , 16
, , 16
, , 16
i
i
i
W
W q
Z
i
Z q
H
q
m m
m m
m
m
2
3
q
We have the following comments received on the results above The process
i j
e e q q occurs via s-channel transmission with a photon and Z boson particle
12 Applicability in practice: The estimated number may be partially verifiable credibility of the results obtained using experimental results from LEP, LEP2
13 The following research: Results of calculation for all possible schema can conclude about the complexity of the parameters in the MSSM
14 All works published related essays: No
Signature:
Nguyen Duc Vinh