what mlb player has the most home runs per at bat since 1950

Since 1950, Mark Worrell and Esteban Yan are tied for the most home runs per at-bat, with 0.5.

	NAME	HR/AB	HR	AB	G	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Mark Worrell M. Worrell	0.5	1	2	4	1	1	0	0	3	0	0	0	0	0	2	4	1	0	0	0	0	.500	.500	2.000	2.500	1	1.1	1.012	548	1.1
2	Esteban Yan E. Yan	0.5	1	2	38	1	2	0	0	1	0	0	0	0	0	3	5	1	1	0	0	0	1.000	1.000	2.500	3.500	4	3.3	1.419	906	3.3
3	Daniel Camarena D. Camarena	0.33	1	3	6	1	1	0	0	4	0	0	2	0	0	3	4	1	0	0	0	0	.333	.333	1.333	1.667	1	0.9	.669	331	0.9
4	Keith McDonald K. McDonald	0.33	3	9	8	3	3	0	0	5	2	0	2	0	0	11	12	3	0	0	0	1	.333	.455	1.333	1.788	5	3.1	.662	304	3.1
5	Jeff Bittiger J. Bittiger	0.33	1	3	3	1	1	0	0	1	0	0	1	0	0	4	4	1	1	0	0	0	.333	.333	1.333	1.667	2	1.2	.698	353	1.2
6	Gregg Olson G. Olson	0.25	1	4	138	1	1	0	0	2	1	0	3	0	0	5	4	1	0	0	0	0	.250	.400	1.000	1.400	2	0.9	.546	235	0.9
7	Doug Clarey D. Clarey	0.25	1	4	9	2	1	0	0	2	0	0	1	0	0	4	4	1	0	0	0	0	.250	.250	1.000	1.250	1	0.7	.562	255	0.7
8	Charlton Jimerson C. Jimerson	0.22	2	9	31	8	4	0	0	2	0	0	3	4	0	9	10	2	0	0	0	1	.444	.444	1.111	1.556	3	2.3	.639	303	2.3
9	Eddy Rodriguez E. Rodriguez	0.2	1	5	2	1	1	0	0	1	2	0	3	0	0	7	4	1	0	0	0	0	.200	.429	.800	1.229	2	1	.491	222	1
10	Gene Stechschulte G. Stechschulte	0.2	1	5	93	1	2	0	0	3	1	0	3	0	0	6	5	1	0	0	0	0	.400	.500	1.000	1.500	2	1.4	.596	270	1.4
11	Humberto Castellanos H. Castellanos	0.17	1	6	11	1	3	0	0	5	0	0	1	0	0	7	6	1	0	1	0	0	.500	.429	1.000	1.429	2	1.3	.538	240	1.2
12	David Matranga D. Matranga	0.17	1	6	7	1	1	0	0	1	0	0	2	0	0	6	4	1	0	0	0	0	.167	.167	.667	.833	1	0	.333	97	0
13	Hal Haydel H. Haydel	0.17	1	6	35	2	3	1	0	1	0	0	2	0	0	6	7	2	0	0	0	0	.500	.500	1.167	1.667	3	1.9	.722	359	1.8
14	Ray Rippelmeyer R. Rippelmeyer	0.17	1	6	18	2	3	1	0	1	0	0	1	0	0	6	7	2	0	0	0	0	.500	.500	1.167	1.667	3	1.9	.714	342	1.8
15	Greg Jones G. Jones	0.14	1	7	9	1	1	0	0	1	1	0	6	1	0	8	4	1	0	0	0	0	.143	.250	.571	.821	1	0.2	.342	108	0.1
16	Carlos Rivero C. Rivero	0.14	1	7	4	1	4	2	0	3	1	0	0	0	0	8	9	3	0	0	0	0	.571	.625	1.286	1.911	4	2.9	.785	424	2.9
17	Chad Santos C. Santos	0.14	1	7	3	2	3	0	0	2	1	0	2	0	0	8	6	1	0	0	0	0	.429	.500	.857	1.357	3	1.5	.557	242	1.5
18	Juan Diaz J. Diaz	0.14	1	7	4	2	2	1	0	2	1	0	2	0	0	8	6	2	0	0	0	0	.286	.375	.857	1.232	2	1.1	.498	211	1.1
19	Don Durham D. Durham	0.14	2	14	15	3	7	0	0	4	0	0	4	0	0	14	13	2	0	0	0	0	.500	.500	.929	1.429	5	3.5	.651	314	3.3
20	Bill Southworth B. Southworth	0.14	1	7	3	2	2	0	0	2	0	2	3	0	0	9	5	1	0	0	0	0	.286	.444	.714	1.159	2	1.3	.500	226	1.3
21	Rick Short R. Short	0.13	2	15	11	4	6	2	0	4	1	1	1	0	0	17	14	4	0	0	0	0	.400	.471	.933	1.404	6	3.5	.574	263	3.5
22	Brian McCall B. McCall	0.13	2	15	7	3	3	0	0	3	1	0	4	0	0	16	9	2	0	0	0	0	.200	.250	.600	.850	2	0.7	.361	124	0.6
23	Braxton Fulford B. Fulford	0.13	1	8	4	1	1	0	0	1	0	0	5	0	0	8	4	1	0	0	0	0	.125	.125	.500	.625	1	-0.3	.260	50	-0.5
24	Nate Karns N. Karns	0.13	1	8	7	1	1	0	0	1	0	0	4	0	0	11	4	1	3	0	0	1	.125	.125	.500	.625	1	-0.7	.258	44	-0.7
25	Zack Britton Z. Britton	0.13	1	8	22	3	5	1	0	2	0	0	1	0	0	8	9	2	0	0	0	0	.625	.625	1.125	1.750	4	2.8	.753	391	2.7