CLAS Physics Database

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Measurement E187M123

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Experiment: e1e, 2022

Spokespersons: Y. Tian, R. W. Gothe V.I. Mokeev, and G. Hollis

Experiment comment: Q2 : 0.4 — 1.0 GeV2 W : up to 1.825 GeV Ebeam : 2.039 GeV

Publication:

Y. Tian, R.W. Gothe, V.I. Mokeev and G. Hollis (For CLAS Collaboration) Exclusive π− Electroproduction off the Neutron in Deuterium in the Resonance Region // CLAS-Notes 2021-101 //

Quantity measured: dσ/dΩ (quasi-free), mcbn/sterad
quasi-free differential cross section
Beam: e, polarization: none
Target: d (Z=1, A=2), polarization: none
Final state: π⁻ p, polarization: none

Q² :	0.7 GeV²
W :	1.5125 GeV

Select data slice:
cos(θ) =

Fit φ dependence:

Observable quantity measured (Y axis): dσ/dΩ (quasi-free), mcbn/sterad
Plot measurement data

Parameter (X axis): φ, degree

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Click here to get data in text file, delimited with tabs.

Click here to get calculated fit coefficients in text file, delimited with tabs.

Measured data:

cos(θ)	φ, degree	dσ/dΩ (quasi-free), mcbn/sterad	Data errors, mcbn/sterad	Systematic errors, mcbn/sterad
-0.9	20	0.488307	0.0401112	0.0418546
-0.9	22.5	0.504138	0.0394191	0.0436467
-0.9	30	0.49903	0.0355964	0.0414029
-0.9	67.5	0.606432	0.0518416	0.0479138
-0.9	90	0.78542	0.0585819	0.0580698
-0.9	270	0.789196	0.0584403	0.0746652
-0.9	292.5	0.722753	0.0563148	0.0603634
-0.9	300	0.677595	0.0580216	0.0524343
-0.9	330	0.469501	0.0405622	0.0365964
-0.7	67.5	0.602606	0.0466077	0.0513234
-0.7	247.5	0.886762	0.0686232	0.0798508
-0.7	270	0.753626	0.0581778	0.0678513
-0.7	300	0.615012	0.0493307	0.0500057
-0.5	60	0.544956	0.0439553	0.045956
-0.5	67.5	0.652887	0.0461413	0.0544103
-0.5	90	0.858058	0.0422004	0.0661229
-0.5	100	0.945578	0.0531613	0.0691267
-0.5	112.5	0.888745	0.0469567	0.0636304
-0.5	140	0.803303	0.0676898	0.0634413
-0.5	150	0.750411	0.0629721	0.0597264
-0.5	247.5	0.846685	0.0457861	0.0587767
-0.5	260	0.793273	0.0475695	0.0632603
-0.5	270	0.714772	0.0421119	0.051516
-0.5	330	0.36687	0.0286314	0.0252671
-0.3	30	0.527141	0.0420784	0.0394968
-0.3	60	0.657159	0.0510543	0.0533412
-0.3	67.5	0.674781	0.0549466	0.0513465
-0.3	90	0.809915	0.0394728	0.0591295
-0.3	100	0.845235	0.0475194	0.0577948
-0.3	112.5	0.805754	0.038256	0.055522
-0.3	140	0.587737	0.0462832	0.0411511
-0.3	150	0.528783	0.04208	0.036209
-0.3	210	0.549039	0.0423718	0.0398825
-0.3	220	0.607556	0.0464224	0.0443327
-0.3	247.5	0.811679	0.037767	0.0540985
-0.3	260	0.846246	0.0422141	0.0565942
-0.3	270	0.817158	0.035957	0.0543327
-0.3	292.5	0.623453	0.0439008	0.0432286
-0.3	300	0.609129	0.048516	0.0509496
-0.3	330	0.45947	0.0383155	0.0402771
-0.1	30	0.561396	0.0454181	0.0468411
-0.1	67.5	0.769039	0.0561068	0.0581344
-0.1	90	0.809864	0.037389	0.0608753
-0.1	100	0.782969	0.0382321	0.0602611
-0.1	112.5	0.707997	0.034086	0.0560791
-0.1	247.5	0.703023	0.0372121	0.0564318
-0.1	260	0.732746	0.0405388	0.0595218
-0.1	270	0.764561	0.0360261	0.0623599
-0.1	292.5	0.753853	0.046795	0.0635608
-0.1	300	0.812947	0.055809	0.0790843
-0.1	330	0.613561	0.0467076	0.0544744
0.1	60	0.847522	0.0544631	0.0601415
0.1	67.5	0.913774	0.0492387	0.0673872
0.1	90	0.886171	0.0342894	0.0608893
0.1	100	0.824568	0.0393812	0.0556947
0.1	112.5	0.724294	0.0356803	0.0493026
0.1	247.5	0.745665	0.0359906	0.052044
0.1	260	0.858305	0.0401311	0.0563895
0.1	270	0.87741	0.0386544	0.060018
0.1	292.5	0.867777	0.0595841	0.0635679
0.3	60	1.192	0.0655682	0.0832076
0.3	67.5	1.18642	0.0571239	0.0815836
0.3	90	1.09839	0.0386424	0.0736683
0.3	100	0.991512	0.0468032	0.0679153
0.3	112.5	0.924308	0.043775	0.062087
0.3	150	0.66568	0.0565405	0.0673727
0.3	247.5	0.940344	0.0461618	0.0636915
0.3	260	0.977602	0.0471718	0.0705801
0.3	270	1.09994	0.0396274	0.0759751
0.3	292.5	1.17281	0.0567389	0.0860876
0.3	300	1.25505	0.0690394	0.0896936
0.5	60	1.42749	0.102067	0.10161
0.5	67.5	1.42845	0.0729261	0.09747
0.5	90	1.53131	0.0494973	0.110685
0.5	100	1.48618	0.0558998	0.110183
0.5	112.5	1.38063	0.055581	0.103895
0.5	140	0.921833	0.0690278	0.0796414
0.5	150	0.777293	0.0586079	0.0673018
0.5	247.5	1.30115	0.060589	0.0911895
0.5	260	1.38041	0.0564246	0.0978805
0.5	270	1.4737	0.0471156	0.103719
0.5	292.5	1.51348	0.0680192	0.110013
0.5	300	1.554	0.0881049	0.113745
0.7	67.5	2.06077	0.111215	0.144042
0.7	90	1.95835	0.0712977	0.1443
0.7	100	1.84369	0.0772944	0.141796
0.7	112.5	1.72743	0.0788673	0.144616
0.7	140	1.46412	0.0839762	0.139248
0.7	150	1.36569	0.0753466	0.133576
0.7	157.5	1.35614	0.0943943	0.133364
0.7	210	1.31027	0.085473	0.104363
0.7	220	1.49698	0.0882926	0.119587
0.7	247.5	1.71168	0.0795865	0.119397
0.7	260	1.78398	0.0771223	0.130216
0.7	270	1.87269	0.0705003	0.137903
0.7	292.5	2.00513	0.110314	0.159401
0.9	90	2.47155	0.126798	0.269528
0.9	100	2.4238	0.12957	0.267028
0.9	112.5	2.37215	0.123288	0.282896
0.9	140	3.13207	0.213823	0.463118
0.9	150	2.82734	0.182053	0.450188
0.9	157.5	3.81231	0.28977	0.678342
0.9	210	2.63266	0.172022	0.485405
0.9	220	2.80492	0.19895	0.497842
0.9	247.5	2.60746	0.129031	0.33028
0.9	260	2.65814	0.150402	0.273577
0.9	270	2.63555	0.14449	0.271445