Friday, October 9, 2026

Baryons Masses

 

From ref. 2, we can estimate the mass of quarks (in MeV/c2) as follows :

 

Quarks

Spin 1/2

Spin 3/2

nucleon (down, up)

313

411

strange

490

564

charm

1660

1643

bottom

4994

4976

 

 

 

Spin ½

Spin 3/2

 

Quarks

Name

Mass, ref. 2

Mass, calc.

Error(%)

Name

Mass, ref. 2

Mass, calc.

Error(%)

1

nnn

N

939

939

0.0

1,232

1,232

0.0

2

nns

1,116

1,116

0.0

1,385

1,385

0.0

3

nnc

2,286

2,286

0.0

-

2,464

-

4

nnb

5,620

5,620

0.0

-

5,797

-

5

nss

1,319

1,293

-1.9

1,530

1,539

0.6

6

nsc

2,469

2,463

-0.2

2,645

2,617

-1.0

7

nsb

5,795

5,797

0.0

5,950

5,951

0.0

8

ncc

3,622

3,633

0.3

-

3,696

-

9

ncb

-

-

6,967

-

-

-

7,029

-

10

nbb

-

-

10,301

-

-

-

10,363

-

11

sss

-

1,470

-

1,672

1,692

1.2

12

ssc

2,695

2,640

-2.0

2,770

2,771

0.0

13

ssb

6,045

5,974

-1.2

-

6,104

-

14

scc

-

3,810

-

-

3,849

-

15

scb

-

-

7,144

-

-

-

7,183

-

16

sbb

-

-

10,478

-

-

-

10,516

-

17

ccc

-

-

4,980

-

-

-

4,928

-

18

ccb

-

-

8,314

-

-

-

8,261

-

19

cbb

-

-

11,648

-

-

-

11,595

-

20

bbb

-

-

14,982

-

-

-

14,928

-

 

Reference :

1D. Griffiths, Introduction to Elementary Particles, John Wiley & Sons, 1987, front inside cover.

2R.L. Workman et al. (Particle Data Group), Prog. Theor. Exp. Phys. 2022, 083C01 (2022), pp. 88-89.

Baryons Masses

 

From ref. 2, we can estimate the mass of quarks (in MeV/c2) as follows :

 

Quarks

Spin 1/2

Spin 3/2

nucleon (down, up)

313

411

strange

490

564

charm

1660

1643

bottom

4994

4976

 

 

Spin

Spin 3/2

 

Quarks

Name

Mass, ref. 2

Mass, calc.

Error(%)

Name

Mass, ref. 2

Mass, calc.

Error(%)

1

nnn

N

939

939

0.0

<![if !msEquation]><![if !vml]><![endif]><![endif]>

1,232

1,232

0.0

2

nns

<![if !msEquation]><![if !vml]><![endif]><![endif]>

1,116

1,116

0.0

<![if !msEquation]><![if !vml]><![endif]><![endif]>

1,385

1,385

0.0

3

nnc

<![if !msEquation]><![if !vml]><![endif]><![endif]>

2,286

2,286

0.0

<![if !msEquation]><![if !vml]><![endif]><![endif]>

-

2,464

-

4

nnb

<![if !msEquation]><![if !vml]><![endif]><![endif]>

5,620

5,620

0.0

<![if !msEquation]><![if !vml]><![endif]><![endif]>

-

5,797

-

5

nss

<![if !msEquation]><![if !vml]><![endif]><![endif]>

1,319

1,293

-1.9

<![if !msEquation]><![if !vml]><![endif]><![endif]>

1,530

1,539

0.6

6

nsc

<![if !msEquation]><![if !vml]><![endif]><![endif]>

2,469

2,463

-0.2

<![if !msEquation]><![if !vml]><![endif]><![endif]>

2,645

2,617

-1.0

7

nsb

<![if !msEquation]><![if !vml]><![endif]><![endif]>

5,795

5,797

0.0

<![if !msEquation]><![if !vml]><![endif]><![endif]>

5,950

5,951

0.0

8

ncc

<![if !msEquation]><![if !vml]><![endif]><![endif]>

3,622

3,633

0.3

<![if !msEquation]><![if !vml]><![endif]><![endif]>

-

3,696

-

9

ncb

-

-

6,967

-

-

-

7,029

-

10

nbb

-

-

10,301

-

-

-

10,363

-

11

sss

<![if !msEquation]><![if !vml]><![endif]><![endif]>

-

1,470

-

<![if !msEquation]><![if !vml]><![endif]><![endif]>

1,672

1,692

1.2

12

ssc

<![if !msEquation]><![if !vml]><![endif]><![endif]>

2,695

2,640

-2.0

<![if !msEquation]><![if !vml]><![endif]><![endif]>

2,770

2,771

0.0

13

ssb

<![if !msEquation]><![if !vml]><![endif]><![endif]>

6,045

5,974

-1.2

<![if !msEquation]><![if !vml]><![endif]><![endif]>

-

6,104

-

14

scc

<![if !msEquation]><![if !vml]><![endif]><![endif]>

-

3,810

-

<![if !msEquation]><![if !vml]><![endif]><![endif]>

-

3,849

-

15

scb

-

-

7,144

-

-

-

7,183

-

16

sbb

-

-

10,478

-

-

-

10,516

-

17

ccc

-

-

4,980

-

-

-

4,928

-

18

ccb

-

-

8,314

-

-

-

8,261

-

19

cbb

-

-

11,648

-

-

-

11,595

-

20

bbb

-

-

14,982

-

-

-

14,928

-

 

Reference :

1D. Griffiths, Introduction to Elementary Particles, John Wiley & Sons, 1987, front inside cover.

2R.L. Workman et al. (Particle Data Group), Prog. Theor. Exp. Phys. 2022, 083C01 (2022), pp. 88-89.

 

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