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

N(1440) 1/2+I (J P ) = 21 ( 21 + ) Status:∗∗∗∗Older and obsolete values are listed and referenced in the 2014 edition, Chinese Physics C38 070001 (2014).

N(1440) POLE POSITIONREAL PARTVALUE (MeV)

DOCUMENT ID

TECNCOMMENT

1360 to 1380 (≈ 1370) OUR ESTIMATE
1353± 1ROENCHEN 22 DPWA Multichannel
1369± 3SOKHOYAN 15A DPWA Multichannel
1 SVARC
1363± 2± 214 L+P
πN → πN
1375± 30
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •1360
HUNT1355
ROENCHEN
1386
SHKLYAR1370± 4ANISOVICH
1363± 11
BATINIC
1359
ARNDT1383
VRANA
1385
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

1915A
1312A
10060093

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

DOCUMENT ID

TECNCOMMENT

180 to 205 (≈ 190) OUR ESTIMATE
203± 2
ROENCHEN 22 DPWA Multichannel
189± 5SOKHOYAN 15A DPWA Multichannel
1 SVARC180± 4± 514 L+P
πN → πN
180± 40
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •
186
HUNT
215
ROENCHEN
277
SHKLYAR190± 7ANISOVICH
151± 13BATINIC
162
ARNDT316
VRANA
164
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

https://pdg.lbl.gov

Page 1

1915A
1312A
10060093

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

Created: 5/31/2024 10:12

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

N(1440) ELASTIC POLE RESIDUEMODULUS r
VALUE (MeV)

DOCUMENT ID

TECNCOMMENT50 to 60 (≈ 55) OUR ESTIMATE
59± 1
ROENCHEN 22 DPWA Multichannel
49± 3
SOKHOYAN 15A DPWA Multichannel
1 SVARC50± 1 ± 214 L+P
πN → πN
52± 5
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •62ROENCHEN126
SHKLYAR
48± 3
ANISOVICH
44BATINIC
38
ARNDT40
HOEHLER
1 Fit to the amplitudes of HOEHLER 79.

15A1312A100693

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

PHASE θVALUE (◦ )DOCUMENT ID

TECNCOMMENT− 100 to − 80 (≈ − 90) OUR ESTIMATE− 104± 2
ROENCHEN 22 DPWA Multichannel− 82± 5SOKHOYAN 15A DPWA Multichannel
1 SVARC− 88± 1± 214 L+PπN → πN− 100± 35
CUTKOSKY 80 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •− 98
ROENCHEN− 60
SHKLYAR− 78± 4
ANISOVICH− 88
BATINIC− 98
ARNDT
1 Fit to the amplitudes of HOEHLER 79.

15A
1312A
1006

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

N(1440) INELASTIC POLE RESIDUE
The “normalized residue” is the residue divided by Γpole /2.

Normalized residue in N π → N(1440) → N η
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT0.084± 0.002− 28 ± 2
ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.078− 27ROENCHEN

15A DPWA Multichannel

Normalized residue in N π → N(1440) → ∆ π, P-wave
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.27± 0.02
38 ± 5SOKHOYAN 15A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.27± 0.02

40 ± 5https://pdg.lbl.gov

ANISOVICH

Page 2

12A DPWA Multichannel

Created: 5/31/2024 10:12

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

Normalized residue in N π → N(1440) → Λ K
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.025± 0.005− 92 ± 43
ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.016

145

ROENCHEN

15A DPWA Multichannel

Normalized residue in N π → N(1440) → Σ K
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT

0.002± 0.003− 32 ± 77
ROENCHEN 22 DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.027

113

ROENCHEN

15A DPWA Multichannel=0Normalized residue in N π → N(1440) → N (ππ)IS−wave
MODULUSPHASE (◦ )DOCUMENT ID

TECNCOMMENT0.21± 0.04
− 136 ± 4
SOKHOYAN 15A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •0.21± 0.05

− 135 ± 7

ANISOVICH

12A DPWA MultichannelN(1440) BREIT-WIGNER MASSVALUE (MeV)

DOCUMENT ID

TECNCOMMENT1410 to 1470 (≈ 1440) OUR ESTIMATE
1 HUNT
1417 ± 419 DPWA Multichannel
1430 ± 10
SOKHOYAN 15A DPWA Multichannel
1 SHKLYAR
1515 ± 15
13 DPWA Multichannel
1 ARNDT1485.0± 1.2
06 DPWA π N → π N, η N
1440 ± 30
CUTKOSKY 80 IPWA π N → π N
1410 ± 12
HOEHLER
79 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •1430 ± 81412 ± 21439 ± 191518 ± 51479 ± 80
1 Statistical error only.

ANISOVICH
1 SHRESTHABATINICPENNER
VRANA12A
12A
1002C00

DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N η
DPWA Multichannel
DPWA MultichannelN(1440) BREIT-WIGNER WIDTHVALUE (MeV)

DOCUMENT ID

250 to 450 (≈ 350) OUR ESTIMATE
1 HUNT257± 11360± 30
SOKHOYAN
1 SHKLYAR
605± 90
1 ARNDT284± 18340± 70
CUTKOSKY135± 10HOEHLER

https://pdg.lbl.gov

Page 3

TECN

1915A
13068079

COMMENTDPWA Multichannel
DPWA Multichannel
DPWA Multichannel
DPWA π N → π N, η N
IPWA π N → π N
IPWA π N → π N

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. • • •365± 35248± 5437± 141
668± 41490± 120
1 Statistical error only.

ANISOVICH
1 SHRESTHABATINICPENNER
VRANA

12A
12A
1002C
00

DPWA Multichannel
DPWA Multichannel
DPWA π N → N π, N η
DPWA Multichannel
DPWA MultichannelN(1440) DECAY MODES
The following branching fractions are our estimates, not fits or averages.

Γ1Γ2
Γ3
Γ4
Γ5
Γ6Γ7ModeFraction (Γi /Γ)NπNηNππ∆(1232)π , P-wave
Nσp γ , helicity=1/2n γ , helicity=1/2

55–75 %
<1 %17–50 %
6–27 %
11–23 %
0.035–0.048 %
0.02–0.04 %N(1440) BRANCHING RATIOSΓ N π /Γtotal
VALUE (%)

Γ1 /ΓDOCUMENT ID

TECNCOMMENT

55 to 75 (≈ 65) OUR ESTIMATE
1 HUNT
59 ± 219 DPWA Multichannel
63 ± 2SOKHOYAN 15A DPWA Multichannel
1 SHKLYAR
56 ± 213 DPWA Multichannel
1 ARNDT78.7± 1.6
06 DPWA π N → π N, η N
68 ± 4
CUTKOSKY 80 IPWA π N → π N
51 ± 5
HOEHLER
79 IPWA π N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •62 ± 364.8± 0.962 ± 457 ± 172 ± 5
1 Statistical error only.

ANISOVICH
1 SHRESTHABATINICPENNER
VRANA

12A
12A
1002C
00

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

Γ2 /ΓDOCUMENT ID

TECNCOMMENT• • • We do not use the following data for averages, fits, limits, etc. • • •0± 1VRANA

https://pdg.lbl.gov

Page 400

DPWA Multichannel

Created: 5/31/2024 10:12

Citation: S. Navas et al. (Particle Data Group), Phys. Rev. D 110, 030001 (2024)Γ ∆(1232)π , P-wave /Γtotal
VALUE (%)

Γ4 /ΓDOCUMENT ID

TECNCOMMENT

6 to 27 (≈ 15) OUR ESTIMATE
1 HUNT
22 ± 419 DPWA Multichannel+512 − 3SHKLYAR
16 DPWA Multichannel
20 ± 7SOKHOYAN 15A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •21 ± 86.5± 0.8
16 ± 1
1 Statistical error only.

ANISOVICH
1 SHRESTHAVRANA12A DPWA Multichannel
12A DPWA Multichannel
00 DPWA MultichannelΓ N σ /Γtotal

Γ5 /Γ

VALUE (%)

DOCUMENT ID

TECNCOMMENT

1 HUNT
16± 319 DPWA Multichannel+427 − 9SHKLYAR
16 DPWA Multichannel
17± 6
SOKHOYAN 15A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •
17± 7
27± 1
12± 1
1 Statistical error only.

ANISOVICH
1 SHRESTHAVRANA12A DPWA Multichannel
12A DPWA Multichannel
00 DPWA MultichannelN(1440) PHOTON DECAY AMPLITUDES AT THE POLE
N(1440) → p γ , helicity-1/2 amplitude A1/2
MODULUS (GeV−1/2 )PHASE (◦ )DOCUMENT ID

TECNCOMMENT− 0.090± 0.007− 30 ± 3
ROENCHEN 22 DPWA Multichannel− 0.044± 0.005− 40 ± 8
SOKHOYAN 15A DPWA Multichannel• • • We do not use the following data for averages, fits, limits, etc. • • •− 0.060− 23

ROENCHEN

15A DPWA MultichannelN(1440) → n γ , helicity-1/2 amplitude A1/2
MODULUS (GeV−1/2 )PHASE (◦ )DOCUMENT ID

0.041± 0.005

23 ± 10ANISOVICHTECNCOMMENT

17E DPWA MultichannelN(1440) BREIT-WIGNER PHOTON DECAY AMPLITUDESN(1440) → p γ , helicity-1/2 amplitude A1/2
VALUE (GeV−1/2 )DOCUMENT ID− 0.080 to − 0.050 (≈ − 0.065) OUR ESTIMATE
1 HUNT− 0.091± 0.007− 0.061± 0.006
SOKHOYAN
1− 0.085± 0.003
SHKLYAR
1 WORKMAN− 0.056± 0.001
1 DUGGER− 0.051± 0.002

https://pdg.lbl.gov

Page 5TECN

1915A
1312A07

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

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. • • •− 0.061± 0.008− 0.084± 0.003− 0.061− 0.087
1 Statistical error only.

ANISOVICH
1 SHRESTHADRECHSELPENNER

12A
12A
0702D

DPWA Multichannel
DPWA Multichannel
DPWA γ N → π N
DPWA MultichannelN(1440) → n γ , helicity-1/2 amplitude A1/2
VALUE (GeV−1/2 )DOCUMENT ID

TECNCOMMENT0.035 to 0.055 (≈ 0.045) OUR ESTIMATE
1 HUNT
0.013± 0.012
19 DPWA Multichannel
0.053± 0.007
ANISOVICH
17E DPWA Multichannel
1 CHEN
0.048± 0.004
12A DPWA γ N → π N• • • We do not use the following data for averages, fits, limits, etc. • • •0.043± 0.012
0.040± 0.005
0.054
0.121
1 Statistical error only.

ANISOVICH
1 SHRESTHADRECHSELPENNER

13B
12A0702D

DPWA Multichannel
DPWA Multichannel
DPWA γ N → π N
DPWA MultichannelN(1440) REFERENCES
For early references, see Physics Letters 111B 1 (1982).
ROENCHENHUNTANISOVICHSHKLYAR
ROENCHENSOKHOYANPDG
SVARC
ANISOVICHSHKLYARANISOVICHCHEN
SHRESTHA
WORKMANBATINICDRECHSELDUGGERARNDTPENNERPENNERVRANAHOEHLER
CUTKOSKY
Also
HOEHLER
Also

2219
17E
1615A
15A
141413B
1312A
12A
12A
12A
10070706
02C
02D00
938079EPJ A58 229
PR C99 055205
PR C96 055202
PR C93 045206
EPJ A51 70
EPJ A51 95
CP C38 070001
PR C89 045205
EPJ A49 67
PR C87 015201
EPJ A48 15
PR C86 015206
PR C86 055203
PR C86 015202
PR C82 038203EPJ A34 69
PR C76 025211
PR C74 045205
PR C66 055211
PR C66 055212
PRPL 328 181
π N Newsletter 9 1
Toronto Conf. 19
PR D20 2839
PDAT 12-1
Toronto Conf. 3

https://pdg.lbl.gov

D. Roenchen et al.
(JULI, GWU, BONN+)
B.C. Hunt, D.M. Manley
A.V. Anisovich et al.
(BONN, PNPI, JLAB+)
V. Shklyar, H. Lenske, U. Mosel(GIES)
D. Roenchen et al.
V. Sokhoyan et al.
(CBELSA/TAPS Collab.)
K. Olive et al.
(PDG Collab.)
A. Svarc et al.
(RBI Zagreb, UNI Tuzla)A.V. Anisovich et al.
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)G. Penner, U. Mosel(GIES)
G. Penner, U. Mosel(GIES)
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 6Created: 5/31/2024 10:12