Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

I (J P ) = 21 ( 21 − ) Status:

N(1650) 1/2−∗∗∗∗

Older and obsolete values are listed and referenced in the 2014 edition, Chinese Physics C38 070001 (2014).

N(1650) POLE POSITIONREAL PARTVALUE (MeV)

DOCUMENT ID

TECNCOMMENT

1650 to 1680 (≈ 1665) OUR ESTIMATE
1678± 2
ROENCHEN 22 DPWA Multichannel
1664± 4AFZAL
20 DPWA Multichannel
1658± 10ANISOVICH
17A DPWA Multichannel
1 ANISOVICH
1660± 5
17A L+P
γ p, π − p → K Λ
21660± 3.5± 1
SVARC
14 L+P
πN → πN
1640± 20
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •
1656
HUNT
1672
ROENCHEN
1652± 7SOKHOYAN1650
SHKLYAR1647± 6ANISOVICH
1646± 8BATINIC
1648
ARNDT
1663
VRANA
1670
HOEHLER
1 Statistical error only.
2 Fit to the amplitudes of HOEHLER 79.

1915A
15A
1312A
10060093

DPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N η
DPWA π N → π N, η NDPWA Multichannel
ARGD π N → π N−2×IMAGINARY PARTVALUE (MeV)

DOCUMENT ID

TECNCOMMENT

100 to 170 (≈ 135) OUR ESTIMATE
127± 2
ROENCHEN 22 DPWA Multichannel
98± 6
AFZAL
20 DPWA Multichannel
102± 8ANISOVICH
17A DPWA Multichannel
1 ANISOVICH
59± 16
17A L+P
γ p, π − p → K Λ
2167± 8± 2
SVARC
14 L+PπN → πN
150± 30
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •130
137
102± 889103± 8
204± 1780
240163

HUNTROENCHENSOKHOYANSHKLYARANISOVICH
BATINICARNDTVRANAHOEHLER

https://pdg.lbl.gov

Page 11915A15A1312A
10060093

DPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N η
DPWA π N → π N, η N
DPWA Multichannel
ARGD π N → π N

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

1 Statistical error only.
2 Fit to the amplitudes of HOEHLER 79.

N(1650) ELASTIC POLE RESIDUEMODULUS r
VALUE (MeV)

DOCUMENT ID

TECNCOMMENT

25 to 55 (≈ 45) OUR ESTIMATE
59± 11ROENCHEN 22 DPWA Multichannel
27± 6
SOKHOYAN 15A DPWA Multichannel
1 SVARC47± 3± 114 L+P
πN → πN60± 10
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •37
ROENCHEN19SHKLYAR
24± 3
ANISOVICH
100
BATINIC
14
ARNDT39
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

15A
1312A
100693DPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N ηDPWA π N → π N, η N
ARGD π N → π N

PHASE θVALUE (◦ )DOCUMENT ID

TECNCOMMENT− 80 to − 50 (≈ − 70) OUR ESTIMATE− 18± 23
ROENCHEN 22 DPWA Multichannel− 60± 20SOKHOYAN 15A DPWA Multichannel
1 SVARC− 47± 3± 1
14 L+P
πN → πN− 75± 25
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •− 59
ROENCHEN− 46
SHKLYAR− 75± 12ANISOVICH− 65
BATINIC− 69
ARNDT− 37
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

15A
1312A
100693DPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N η
DPWA π N → π N, η N
ARGD π N → π N

N(1650) INELASTIC POLE RESIDUE
The “normalized residue” is the residue divided by Γpole /2.

Normalized residue in N π → N(1650) → N η
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.34± 0.06
71 ± 23
ROENCHEN 22 DPWA Multichannel
0.29± 0.03
134 ± 10ANISOVICH
12A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.2148

ROENCHEN

15A DPWA Multichannel

Normalized residue in N π → N(1650) → Λ K
MODULUSPHASE (◦ )DOCUMENT ID

0.26± 0.05

− 40 ± 23

ROENCHEN

https://pdg.lbl.gov

Page 2TECN

22COMMENTDPWA Multichannel

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

0.26± 0.10
110 ± 20
ANISOVICH
17A DPWA Multichannel
1 ANISOVICH
0.10± 0.10
95 ± 33
17A L+P
γ p, π − p → K Λ• • • We do not use the following data for averages, fits, limits, etc. • • •0.20− 540.23± 0.09
85 ± 91 Statistical error only.

ROENCHENANISOVICH

15A DPWA Multichannel
12A DPWA Multichannel

Normalized residue in N π → N(1650) → Σ K
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.41 ± 0.07
− 21 ± 24
ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.026− 74

ROENCHEN

15A DPWA Multichannel

Normalized residue in N π → N(1650) → ∆ π, D-wave
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT0.19± 0.06
− 30 ± 20
SOKHOYAN 15A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.23± 0.04

− 30 ± 20

ANISOVICH

12A DPWA Multichannel

Normalized residue in N π → N(1650) → N σ
MODULUSPHASE (◦ )DOCUMENT ID

0.20± 0.15

undefined

SOKHOYAN

TECNCOMMENT

15A DPWA Multichannel

Normalized residue in N π → N(1650) → N(1440)πMODULUSPHASE (◦ )DOCUMENT ID

0.30± 0.17

undefined

SOKHOYAN

TECNCOMMENT

15A DPWA Multichannel

N(1650) BREIT-WIGNER MASSVALUE (MeV)

1635

DOCUMENT ID

TECNCOMMENTto 1665 (≈ 1650) OUR ESTIMATE

1657 ± 6
GOLOVATCH 19 DPWA γ p → π + π − p11666 ± 3
HUNT19 DPWA Multichannel
1634 ± 5
KASHEVAROV 17 DPWA γ p → η p, η ′ p
1654 ± 6
SOKHOYAN 15A DPWA Multichannel
1 SHKLYAR
1665 ± 2
13 DPWA Multichannel
1 ARNDT
1634.7± 1.1
06 DPWA π N → π N, η N
1650 ± 30
CUTKOSKY 80 IPWA π N → π N
1670 ± 8
HOEHLER
79 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •1651 ± 61664 ± 21652 ± 91665 ± 21647 ± 20
1689 ± 12
1 Statistical error only.

ANISOVICH
1 SHRESTHA

https://pdg.lbl.gov

Page 3

BATINICPENNERBAIVRANA

12A
12A
1002C
01B
00

DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N η
DPWA Multichannel
BES
J/ψ → p p η
DPWA Multichannel

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

N(1650) BREIT-WIGNER WIDTHVALUE (MeV)100

DOCUMENT ID

TECNCOMMENT

to 150 (≈ 125) OUR ESTIMATE

154 ± 28
GOLOVATCH 19 DPWA γ p → π + π − p1133 ± 7
HUNT19 DPWA Multichannel
128 ± 16KASHEVAROV 17 DPWA γ p → η p, η ′ p
102 ± 8SOKHOYAN 15A DPWA Multichannel
1 SHKLYAR
147 ± 14
13 DPWA Multichannel
1 ARNDT
115.4± 2.8
06 DPWA π N → π N, η N
150 ± 40
CUTKOSKY 80 IPWA π N → π N
180 ± 20
HOEHLER
79 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •104126202
138± 10± 3± 16± 780
145 +− 45202 ± 40
1 Statistical error only.

ANISOVICH
1 SHRESTHABATINICPENNER

12A
12A
1002C

DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N η
DPWA Multichannel

BAI01B BESVRANA00J/ψ → p p η

DPWA Multichannel

N(1650) DECAY MODES
The following branching fractions are our estimates, not fits or averages.

Γ1
Γ2
Γ3
Γ4
Γ5
Γ6
Γ7
Γ8
Γ9
Γ10
Γ11Γ12ModeFraction (Γi /Γ)NπNη
ΛKNππ∆(1232)π , D-waveNρN ρ , S=1/2, S-wave
N ρ , S=3/2, D-wave
NσN(1440)πp γ , helicity=1/2n γ , helicity=1/2

50–70 %
15–35 %
5–15 %
20–58 %
6–18 %
12–22 %
<4 %12–18 %
2–18 %
6–26 %
0.04–0.20 %0.003–0.17 %N(1650) BRANCHING RATIOSΓ N π /Γtotal
VALUE (%)

Γ1 /ΓDOCUMENT ID

50 to 70 (≈ 60) OUR ESTIMATE
1 HUNT64± 4
51± 4
SOKHOYAN

https://pdg.lbl.gov

Page 4TECNCOMMENT

19 DPWA Multichannel
15A DPWA Multichannel

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

1 SHKLYAR74± 313 DPWA Multichannel
65± 10
CUTKOSKY 80 IPWA π N → π N
61± 4
HOEHLER
79 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •51± 4
57± 279± 6
100
65± 474± 2
1 Statistical error only.

ANISOVICH
1 SHRESTHABATINICARNDTPENNER
VRANA

12A
12A
1006
02C00

DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N η
DPWA π N → π N, η N
DPWA Multichannel
DPWA MultichannelΓ N η /Γtotal
VALUE (%)

Γ2 /ΓDOCUMENT ID

TECNCOMMENT15 to 35 (≈ 25) OUR ESTIMATE
33 ± 4
MUELLER
20 DPWA Multichannel
1 HUNT0.8± 0.6
19 DPWA Multichannel
2 KASHEVAROV 17 DPWA γ p → η p, η ′ p
28 ± 11< 3SHKLYAR
13 DPWA Multichannel
18 ± 4ANISOVICH
12A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 SHRESTHA
21 ± 2
12A DPWA Multichannel
13 ± 5
BATINIC
1.0± 0.6
PENNER6 ± 1VRANA
1 Statistical error only.
−1/2 .
2 Assuming A
1/2 = 0.045 GeV

10 DPWA π N → N π, N η02C DPWA Multichannel
00 DPWA MultichannelΓ Λ K /Γtotal
VALUE (%)

Γ3 /ΓDOCUMENT ID

TECNCOMMENT

5 to 15 (≈ 10) OUR ESTIMATE
1 HUNT
3.5± 0.2
19 DPWA Multichannel
10 ± 5ANISOVICH
12A DPWA Multichannel
1 SHKLYAR
4 ±1
05 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 SHRESTHA
8 ±1
12A DPWA Multichannel
2.7± 0.4
1 Statistical error only.

PENNER

02C DPWA MultichannelΓ N π π /Γtotal

Γ4 /Γ

VALUE

DOCUMENT ID

TECNCOMMENT0.12± 0.02

GOLOVATCH 19

DPWA γ p → π + π − pΓ ∆(1232)π , D-wave /Γtotal
VALUE (%)

< 0.2
12 ± 6https://pdg.lbl.gov

Γ5 /Γ
DOCUMENT ID

1 HUNTSOKHOYAN

Page 5TECNCOMMENT

19 DPWA Multichannel
15A DPWA Multichannel

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)• • • We do not use the following data for averages, fits, limits, etc. • • •19 ± 97 ±22 ±1
1 Statistical error only.

ANISOVICH
1 SHRESTHAVRANA12A DPWA Multichannel
12A DPWA Multichannel
00 DPWA MultichannelΓ N ρ , S=1/2, S-wave /Γtotal
VALUE (%)

Γ7 /ΓDOCUMENT ID

1.8± 1.7
1 Statistical error only.

1 HUNTTECN

19COMMENTDPWA MultichannelΓ N ρ , S=3/2, D-wave /Γtotal
VALUE (%)

Γ8 /ΓDOCUMENT ID

15± 3
1 Statistical error only.

1 HUNT

TECN

19COMMENTDPWA MultichannelΓ N σ /Γtotal

Γ9 /Γ

VALUE (%)

DOCUMENT ID

TECNCOMMENT

1 HUNT
12± 4
19 DPWA Multichannel
10± 8
SOKHOYAN 15A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 SHRESTHA< 112A DPWA Multichannel
1± 1
1 Statistical error only.

VRANA00

DPWA MultichannelΓ N(1440)π /Γtotal
VALUE (%)

Γ10 /Γ
DOCUMENT ID

TECNCOMMENT

1 HUNT2± 1
19 DPWA Multichannel
16± 10SOKHOYAN 15A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •1 SHRESTHA< 112A DPWA Multichannel
3± 1
1 Statistical error only.

VRANA00

DPWA Multichannel

N(1650) PHOTON DECAY AMPLITUDES AT THE POLE
N(1650) → p γ , helicity-1/2 amplitude A1/2
MODULUS (GeV−1/2 )PHASE (◦ )DOCUMENT ID

TECNCOMMENT0.039± 0.005− 0.2 ± 14
ROENCHEN 22 DPWA Multichannel
0.032± 0.006
7±7
ANISOVICH
17D DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.032± 0.007
0.059
0.032± 0.006− 2 ± 11− 14− 2 ± 11

ANISOVICH
ROENCHENSOKHOYAN

15A DPWA Multichannel
15A DPWA Multichannel
15A DPWA Multichannel

N(1650) → n γ , helicity-1/2 amplitude A1/2
MODULUS (GeV−1/2 )PHASE (◦ )DOCUMENT ID

0.016± 0.004− 28 ± 10

ANISOVICH

https://pdg.lbl.gov

Page 6TECNCOMMENT

17D DPWA Multichannel

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)• • • We do not use the following data for averages, fits, limits, etc. • • •0.019± 0.006

0 ± 15ANISOVICH

15A DPWA Multichannel

N(1650) BREIT-WIGNER PHOTON DECAY AMPLITUDESN(1650) → p γ , helicity-1/2 amplitude A1/2
VALUE (GeV−1/2 )DOCUMENT ID

TECNCOMMENT0.035 to 0.055 (≈ 0.045) OUR ESTIMATE
0.0605± 0.0077
GOLOVATCH 19 DPWA γ p → π + π − p10.048 ± 0.003
HUNT19 DPWA Multichannel
0.032 ± 0.006
SOKHOYAN 15A DPWA Multichannel
1 SHKLYAR
0.063 ± 0.006
13 DPWA Multichannel
10.055 ± 0.030
WORKMAN
12A DPWA γ N → N π
1 DUGGER
0.022 ± 0.007
07 DPWA γ N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •0.033 ± 0.007
0.030 ± 0.0030.0330.049
1 Statistical error only.

ANISOVICH
1 SHRESTHADRECHSELPENNER

12A
12A07
02DDPWA Multichannel
DPWA Multichannel
DPWA γ N → π N
DPWA Multichannel

N(1650) → n γ , helicity-1/2 amplitude A1/2
VALUE (GeV−1/2 )DOCUMENT ID

TECNCOMMENT− 0.040 to 0.030 (≈ − 0.010) OUR ESTIMATE
1 HUNT0.001± 0.006
19 DPWA Multichannel
0.016± 0.005
ANISOVICH
17E DPWA Multichannel
1 CHEN− 0.040± 0.010
12A DPWA γ N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •0.025± 0.020
0.011± 0.002
0.009− 0.011
1 Statistical error only.

ANISOVICH
1 SHRESTHADRECHSELPENNER

13B
12A
0702D

DPWA Multichannel
DPWA Multichannel
DPWA γ N → π N
DPWA Multichannel

N(1650) REFERENCES
For early references, see Physics Letters 111B 1 (1982).
ROENCHEN
22
AFZAL
20
MUELLER20
GOLOVATCH 19
HUNT
19
ANISOVICH
17A
ANISOVICH
17D
ANISOVICH
17E
KASHEVAROV 17
ANISOVICH
15A
ROENCHEN15ASOKHOYAN
15A
PDG
14SVARC
14ANISOVICH
13B

EPJ A58 229
PRL 125 152002PL B803 135323
PL B788 371
PR C99 055205
PRL 119 062004
PR C95 035211
PR C96 055202
PRL 118 212001
EPJ A51 72
EPJ A51 70
EPJ A51 95
CP C38 070001
PR C89 045205
EPJ A49 67

https://pdg.lbl.gov

D. Roenchen et al.
F. Afzal et al.
J. Mueller et al.
E. Golovatch et al.
B.C. Hunt, D.M. Manley
A.V. Anisovich et al.
A.V. Anisovich et al.
A.V. Anisovich et al.
V.L. Kashevarov et al.
A.V. Anisovich et al.
D. Roenchen et al.
V. Sokhoyan et al.
K. Olive et al.
A. Svarc et al.
A.V. Anisovich et al.

Page 7(JULI, GWU, BONN+)(CBELSA/TAPS Collab.)(CBELSA/TAPS Collab.)(CLAS Collab.)(BONN, PNPI, JLAB+)(A2/MAMI Collab.)(CBELSA/TAPS Collab.)(PDG Collab.)(RBI Zagreb, UNI Tuzla)

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)

SHKLYARANISOVICHCHEN
SHRESTHA
WORKMANBATINICDRECHSELDUGGERARNDTSHKLYARPENNERPENNER
BAIVRANAHOEHLER
CUTKOSKY
Also
HOEHLER
Also

1312A
12A12A
12A
100707060502C
02D01B00938079

PR C87 015201
EPJ A48 15
PR C86 015206
PR C86 055203
PR C86 015202
PR C82 038203
EPJ A34 69
PR C76 025211
PR C74 045205
PR C72 015210
PR C66 055211
PR C66 055212
PL B510 75
PRPL 328 181
π N Newsletter 9 1
Toronto Conf. 19
PR D20 2839
PDAT 12-1
Toronto Conf. 3

https://pdg.lbl.gov

V. Shklyar, H. Lenske, U. Mosel(GIES)
A.V. Anisovich et al.
(BONN, PNPI)W. Chen et al.
(DUKE, GWU, MSST, ITEP+)
M. Shrestha, D.M. Manley(KSU)
R. Workman et al.
(GWU)
M. Batinic et al.
(ZAGR)
D. Drechsel, S.S. Kamalov, L. Tiator(MAINZ, JINR)
M. Dugger et al.
(JLab CLAS Collab.)
R.A. Arndt et al.
(GWU)
V. Shklyar, H. Lenske, U. Mosel(GIES)
G. Penner, U. Mosel(GIES)
G. Penner, U. Mosel(GIES)
J.Z. Bai et al.
(BES Collab.)
T.P. Vrana, S.A. Dytman, T.-S.H. Lee(PITT, ANL)
G. Hohler(KARL)
R.E. Cutkosky et al.
(CMU, LBL) IJP
R.E. Cutkosky et al.
(CMU, LBL) IJP
G. Hohler et al.
(KARLT) IJP
R. Koch(KARLT) IJP

Page 8Created: 5/31/2024 10:12