The η'-carbon potential at low meson momenta
The production of $\eta^\prime$ mesons in coincidence with forward-going protons has been studied in photon-induced reactions on $^{12}$C and on a liquid hydrogen (LH$_2$) target for incoming photon energies of 1.3-2.6 GeV at the electron accelerator ELSA. The $\eta^\prime$ mesons have been identified via the $\eta^\prime\rightarrow \pi^0 \pi^0\eta \rightarrow 6 \gamma$ decay registered with the CBELSA/TAPS detector system. Coincident protons have been identified in the MiniTAPS BaF$_2$ array at polar angles of $2^{\circ} \le \theta _{p} \le 11^{\circ}$. Under these kinematic constraints the $\eta^\prime$ mesons are produced with relatively low kinetic energy ($\approx$ 150 MeV) since the coincident protons take over most of the momentum of the incident-photon beam. For the C-target this allows the determination of the real part of the $\eta^\prime$-carbon potential at low meson momenta by comparing with collision model calculations of the $\eta^\prime$ kinetic energy distribution and excitation function. Fitting the latter data for $\eta^\prime$ mesons going backwards in the center-of-mass system yields a potential depth of V = $-$(44 $\pm$ 16(stat)$\pm$15(syst)) MeV, consistent with earlier determinations of the potential depth in inclusive measurements for average $\eta^\prime$ momenta of $\approx$ 1.1 GeV/$c$. Within the experimental uncertainties, there is no indication of a momentum dependence of the $\eta^\prime$-carbon potential. The LH$_2$ data, taken as a reference to check the data analysis and the model calculations, provide differential and integral cross sections in good agreement with previous results for $\eta^\prime$ photoproduction off the free proton.
NurtureToken New!

Token crowdsale for this paper ends in

Buy Nurture Tokens

Authors

Are you an author of this paper? Check the Twitter handle we have for you is correct.

M. Nanova (add twitter)
S. Friedrich (edit)
V. Metag (add twitter)
E. Ya. Paryev (add twitter)
F. N. Afzal (edit)
D. Bayadilov (add twitter)
B. Bantes (add twitter)
R. Beck (add twitter)
M. Becker (edit)
S. Böse (add twitter)
K. -T. Brinkmann (add twitter)
V. Crede (add twitter)
P. Drexler (add twitter)
H. Eberhardt (edit)
D. Elsner (edit)
F. Frommberger (add twitter)
Ch. Funke (edit)
M. Gottschall (edit)
M. Grüner (edit)
E. Gutz (add twitter)
Ch. Hammann (add twitter)
J. Hannappel (add twitter)
J. Hartmann (edit)
W. Hillert (add twitter)
Ph. Hoffmeister (add twitter)
Ch. Honisch (add twitter)
T. Jude (edit)
D. Kaiser (edit)
F. Kalischewski (add twitter)
I. Keshelashvili (add twitter)
F. Klein (edit)
K. Koop (add twitter)
B. Krusche (add twitter)
M. Lang (add twitter)
K. Makonyi (add twitter)
F. Messi (add twitter)
J. Müller (add twitter)
J. Müllers (add twitter)
D. Piontek (add twitter)
T. Rostomyan (add twitter)
D. Schaab (add twitter)
Ch. Schmidt (add twitter)
H. Schmieden (add twitter)
R. Schmitz (add twitter)
T. Seifen (add twitter)
V. Sokhoyan (add twitter)
C. Sowa (add twitter)
K. Spieker (add twitter)
A. Thiel (add twitter)
U. Thoma (add twitter)
T. Triffterer (add twitter)
M. Urban (add twitter)
H. van Pee (add twitter)
D. Walther (add twitter)
Ch. Wendel (add twitter)
D. Werthmüller (add twitter)
U. Wiedner (add twitter)
A. Wilson (add twitter)
L. Witthauer (add twitter)
Y. Wunderlich (add twitter)
H. -G. Zaunick (add twitter)
Ask The Authors

Ask the authors of this paper a question or leave a comment.

Read it. Rate it.
#1. Which part of the paper did you read?

#2. The paper contains new data or analyses that is openly accessible?
#3. The conclusion is supported by the data and analyses?
#4. The conclusion is of scientific interest?
#5. The result is likely to lead to future research?

Github
User:
None (add)
Repo:
None (add)
Stargazers:
0
Forks:
0
Open Issues:
0
Network:
0
Subscribers:
0
Language:
None
Youtube
Link:
None (add)
Views:
0
Likes:
0
Dislikes:
0
Favorites:
0
Comments:
0
Other
Sample Sizes (N=):
Inserted:
Words Total:
Words Unique:
Source:
Abstract:
None
10/02/18 06:03PM
6,972
1,834
Tweets
NuclearPapers: The {\eta}'-carbon potential at low meson momenta. https://t.co/Kp7czWD5bq
Images
Related